A power grid suspended battery non-power-off ice melting device

CN224610467UActive Publication Date: 2026-08-07刘晓东
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
刘晓东
Filing Date
2025-09-08
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0006]为了解决输电线路目前在低温雨雪天气出现结冰而影响正常运行,且当前没有能够大范围使用的不停电电融冰技术方案的技术问题

Benefits of technology

[0024] The technical advantage of this invention lies in its ability to melt ice on the transmission line conductors by energizing the battery installed on the suspended battery insulation support platform. This heat is then transferred to the conductors, preventing ice buildup and thus avoiding power outages caused by icing during rain or snow. This device is suitable for various types of transmission lines, including ordinary high-voltage transmission lines and railway contact lines (including high-speed rail contact lines). It features a simple structure, high reliability, and is suitable for widespread application.

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Abstract

The utility model discloses a power grid suspension type battery ice melting device without power stop, including battery module, battery insulation support platform, two pole double -throw disconnecting switch, insulation heating resistance wire module and charging module, battery module is fixed in the top of battery insulation support platform, insulation heating resistance wire module is fixed on the wire of power grid, two pole double -throw disconnecting switch is fixed on battery insulation support platform, and one end of the two -way end is connected to insulation heating resistance wire module, and the other end connects charging module, and the public end is connected to battery module, charging module sets up on the support stage of ground, the utility model discloses through the battery of installation in suspension battery insulation support platform to heating resistance wire electrification, make heating resistance wire produce heat, and the heat is conducted to transmission line wire, thereby melting the ice on transmission line wire and preventing wire icing, avoid high voltage transmission line icing because of rain and snow weather and cause the outage accident of operation.
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Description

Technical Field

[0001] This utility model relates to the field of power transmission, and in particular to a power grid-suspended battery uninterrupted ice-melting device. Background Technology

[0002] In winter, low temperatures and snowy weather can easily cause high-voltage transmission lines to freeze, significantly increasing the weight of conductors, leading to conductor breaks, tower collapses, and power outages. Currently, there are two methods for de-icing high-voltage transmission lines: AC short-circuit de-icing and DC short-circuit de-icing. Both methods require shutting down the high-voltage transmission lines, affecting the reliability of the power grid. Furthermore, these methods are difficult and dangerous to implement, and widespread snow and ice storms have paralyzed power grids in many areas, causing large-scale power outages. Currently, there is still a lack of uninterrupted de-icing technology for high-voltage transmission lines that can be used on a large scale. Once high-voltage transmission lines freeze, de-icing must still be done by shutting down the power grid, still posing a risk of forced shutdowns and large-scale power outages.

[0003] Similar situations occur on railway contact lines, including high-speed railway contact lines. Once the railway contact line freezes, high-speed trains, electric locomotives, and other trains will be forced to stop operating. They can only be restored after manual de-icing. Moreover, the railway contact line will freeze again after manual de-icing. In addition, the labor cost required for manual de-icing is extremely high, and it also damages the contact line.

[0004] While some technologies currently employ fixing air ducts to power lines and introducing heated air into them for de-icing, long-term practical experience has revealed that this approach requires relatively large diameter ducts to effectively heat and de-ic the power lines. However, excessively large diameters make it difficult to secure the ducts to the power lines, increasing the risk of them falling off over time. Furthermore, due to the limitations of the heating method, the heating effect on the power lines is uneven. The hot air gradually cools down as it travels through the duct, resulting in the duct head being the hottest point during heating, while the temperature drops significantly towards the end, rendering it ineffective at de-icing.

[0005] Therefore, all types of power transmission lines urgently need a device that can more effectively melt ice on the conductors without interrupting power supply, so that the high-voltage power grid can operate normally in snowy and icy weather and ensure the power supply for people's livelihoods during snowy and icy weather. Summary of the Invention

[0006] To address the technical problem of power transmission lines being affected by icing during low-temperature rain and snow, which disrupts normal operation, and the current lack of a widely applicable uninterrupted power-on de-icing technology, this invention provides an uninterrupted power-on de-icing device for transmission lines and railway overhead contact lines. This device utilizes a suspended battery to safely heat the transmission lines without requiring power outages.

[0007] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows:

[0008] A grid-suspended battery uninterrupted ice melting device includes a battery module 2, a battery insulation support platform 1, a two-pole dual-throw disconnect switch 3, an insulated heating resistance wire module 5, and a charging module 4;

[0009] The battery insulation support platform 1 is located near the power transmission line; the battery module 2 is fixed to the top of the battery insulation support platform 1; the insulation heating resistance wire module 5 is fixed to the power grid conductor 8; the two-pole double-throw disconnect switch 3 is fixed on the battery insulation support platform 1, and one end of the two-way terminal of the two-pole double-throw disconnect switch 3 is connected to the insulation heating resistance wire module 5, and the other end is connected to the output terminal of the charging module 4, while the common terminal of the two-pole double-throw disconnect switch 3 is connected to the battery module 2; the charging module 4 is located on a support platform on the ground, and the input terminal of the charging module 4 is connected to an external power source.

[0010] Furthermore, in the aforementioned grid-suspended battery uninterrupted ice-melting device, the battery module 2 includes at least one DC rechargeable battery with positive and negative terminals. The positive and negative terminals of the DC rechargeable battery are respectively connected to the two-pole contacts of one end of the bidirectional terminal of the two-pole double-throw isolating switch 3. When there are two or more DC rechargeable batteries, the DC rechargeable batteries are connected in series with each other.

[0011] Furthermore, in the aforementioned grid-suspended battery uninterrupted de-icing device, the battery insulating support platform 1 includes an insulating plate 15, at least one support column 13, and insulating ceramic columns 14 matching the number of support columns 13; the support column 13 is fixed to the ground and has a height of more than 2 meters; the insulating ceramic columns 14 are fixed to the top of the support column 13; the insulating plate 15 is fixed to the top of the insulating ceramic columns 14 to insulate it from the ground.

[0012] Furthermore, in the aforementioned grid-floating battery uninterrupted de-icing device, the two-pole double-throw disconnect switch 3 includes an insulating base 19, a double-throw conductive blade, an insulating rotating shaft 24, a blade 20 support column, a stationary contact 22, and a terminal block 23.

[0013] The insulating base 19 is fixed to the top of the battery insulating support platform 1; the dual-throw conductive blade includes two parallel elongated blades 20 and an insulating shaft 24 with both ends connected to the center of the two blades 20 respectively; the blade 20 support column includes two vertical columns 21 positioned at the center of the insulating base 19, with both ends of the insulating shaft 24 passing through the upper part of one blade 20 and one column 21 respectively, thereby rotatably fixing the two blades 20 to the inner sides of the two columns 21 respectively, and the middle position of the two blades 20 is connected by... The insulated wires 16 are connected to the positive and negative terminals of the battery module 2, respectively. There are four stationary contacts 22, which are fixed in pairs at both ends of the insulating base 19 and are positioned at the ends of the two blades 20 of the double-throw conductive blade. The number of terminals 23 is the same as that of the stationary contacts 22, and one terminal 23 is fixed at the bottom of each stationary contact 22. One pair of terminals 23 is connected to the positive and negative terminals of the charging module 4 through the insulated wires 16, and the other pair of terminals 23 is connected to the insulated heating resistance wire module 5.

[0014] Furthermore, in the aforementioned grid-connected battery uninterrupted de-icing device, the two-pole double-throw disconnect switch 3 further includes an insulated horizontal pull rod 25, an insulated vertical connecting rod 26, a handle support frame 28, and a handle 27.

[0015] The two ends of the insulating horizontal tie rod 25 pass through the two blades 20 and are fixed; one end of the insulating vertical connecting rod 26 is rotatably connected to the insulating horizontal tie rod 25, and the other end passes through the insulating base 19 and the through hole 18 reserved on the battery insulating support platform 1 and extends downward to near the ground; the handle support frame 28 is fixed to the lower part of the battery insulating support platform 1; one end of the handle 27 is rotatably connected to the insulating vertical connecting rod 26, and the middle part of the handle 27 is rotatably connected to the handle support frame 28.

[0016] Furthermore, the aforementioned grid-suspended battery uninterrupted de-icing device also includes an air switch 17, the two ends of which are respectively connected to the common terminal of the battery module 2 and the two-pole double-throw isolating switch 3.

[0017] Furthermore, in the aforementioned grid-suspended battery uninterrupted de-icing device, the transmission line is a high-voltage transmission line, which includes three conductors 8 for transmitting three-phase electricity; the number of the insulated heating resistance wire modules 5 is the same as the number of conductors 8, and each insulated heating resistance wire module 5 is connected to an independent battery module 2, and each battery module 2 is set on an independent battery insulation support platform 1.

[0018] The insulated heating resistance wire module 5 includes a heating resistance wire, an insulating sleeve, and a binding wire 9;

[0019] One end of the heating resistance wire is connected to a terminal 23 on one of the two-way terminals of the double-throw disconnector 3. The other end of the heating resistance wire extends to one of the conductors 8 of the high-voltage transmission line, and after extending a predetermined length on the conductor 8, it is folded back and extended, finally connecting to another terminal 23 on the same end of the two-way terminal of the double-throw disconnector 3 to form a circuit. The insulating sleeve is fitted over the heating resistance wire and is tied to the conductor 8 by the binding wire 9.

[0020] Furthermore, in the aforementioned grid-suspended battery uninterrupted de-icing device, the transmission line is a railway contact line 29, which includes a conductor 8 for transmitting single-phase electricity; the insulated heating resistance wire module 5 includes a heating resistance wire, an insulating sleeve, and a resistance wire clamp 11.

[0021] One end of the heating resistance wire is connected to a terminal 23 on one of the two-way terminals of the double-throw disconnector 3. The other end of the heating resistance wire extends to one of the conductors 8 of the high-voltage transmission line, and after extending a predetermined length on the conductor 8, it is folded back and extended, finally connecting to another terminal 23 on the same end of the two-way terminal of the double-throw disconnector 3 to form a circuit. The insulating sleeve is fitted over the heating resistance wire and fixed to the top of the conductor 8 by the resistance wire clip 11.

[0022] Furthermore, in the aforementioned grid-suspended battery uninterrupted ice-melting device, the resistance wire clamp 11 includes a clamp body and two tail handles; the clamp body is formed by bending an elastic sheet twice in the same direction, and the cross-section of the clamp body is an isosceles triangle, with the vertex between the two legs of the isosceles triangle being an opening; the two tail handles are respectively fixed to the outer walls on both sides of the opening of the clamp body, and the length of the tail handles is greater than the length of the outer walls, so that the user can open the opening by pressing the tail handles; the inner walls on both sides of the opening of the clamp body are provided with locking teeth 12, and the locking teeth 12 on both sides engage with each other when the clamp body is closed.

[0023] Furthermore, in the aforementioned grid-connected battery uninterrupted ice-melting device, the external power source connected to the input terminal of the charging module 4 is one of a 220V AC mains power supply, a 380V industrial power supply, or an independent small generator power supply.

[0024] The technical advantage of this invention lies in its ability to melt ice on the transmission line conductors by energizing the battery installed on the suspended battery insulation support platform. This heat is then transferred to the conductors, preventing ice buildup and thus avoiding power outages caused by icing during rain or snow. This device is suitable for various types of transmission lines, including ordinary high-voltage transmission lines and railway contact lines (including high-speed rail contact lines). It features a simple structure, high reliability, and is suitable for widespread application.

[0025] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0026] Figure 1 is a structural schematic diagram of Embodiment 1 of this utility model.

[0027] Figure 2 is a structural schematic diagram of Embodiment 2 of this utility model.

[0028] Figure 3 is a schematic diagram of the suspended battery insulation support platform structure of Embodiment 1 and Embodiment 2 of this utility model.

[0029] Figure 4 is a schematic diagram of the two-pole double-throw isolating switch of Embodiment 1 and Embodiment 2 of this utility model.

[0030] Figure 5 is a schematic diagram of the resistor wire clip of Embodiment 2 of this utility model.

[0031] Figure 6 This is a schematic diagram of the resistance wire clamp of Embodiment 2 of this utility model clamping the heating resistance wire onto the contact wire.

[0032] Among them, 1 is the battery insulation support platform, 2 is the battery module, 3 is the two-pole double-throw disconnect switch, 4 is the charging module, 5 is the insulated heating resistance wire module, 6 is the transmission line tower, 7 is the insulator, 8 is the conductor, 9 is the binding wire, 10 is the railway contact network, 11 is the resistance wire clamp, 12 is the clamp tooth, 13 is the support post, 14 is the insulated porcelain column, 15 is the insulation board, 16 is the insulated conductor, 17 is the air switch, 18 is the through hole, 19 is the insulated base, 20 is the blade, 21 is the column, 22 is the stationary contact, 23 is the terminal block, 24 is the insulated shaft, 25 is the insulated horizontal tie rod, 26 is the insulated vertical connecting rod, 27 is the handle, 28 is the handle support frame, and 29 is the railway contact line. Detailed Implementation

[0033] Example 1.

[0034] See Figure 1. Figure 3 and Figure 4This embodiment is used for common three-phase high-voltage transmission lines, where de-icing is required for three conductors 8 used to transmit three-phase electricity. In this embodiment, each conductor 8 is equipped with an insulated heating resistance module 5, and each insulated heating resistance module 5 is connected to an independent battery module 2. Each battery module 2 is mounted on an independent battery insulation support platform 1 and is equipped with a separate two-pole double-throw disconnect switch 3 and a charging module 4. The reason for providing a completely independent de-icing device for each conductor 8 is that the voltage of high-voltage transmission lines is extremely high. If only one battery module 2 is used to simultaneously power the three insulated heating resistance modules 5 in parallel, the insulation of the insulated heating resistance modules 5 may be broken down by the three-phase high voltage, leading to a short circuit between the three phases and causing a serious power grid accident.

[0035] Each de-icing device in this embodiment includes a battery module 2, a battery insulation support platform 1, a two-pole double-throw disconnect switch 3, an insulated heating resistance wire module 5, and a charging module 4. The battery insulation support platform 1 is located near the transmission line, such as near the transmission line tower 6, to facilitate routine maintenance by power grid maintenance personnel when inspecting the transmission line tower 6.

[0036] In this embodiment, the battery is fixed to the top of the battery insulation support platform 1. The insulated heating resistance wire module 5 is fixed to the power grid conductor 8. The two-pole double-throw disconnect switch 3 is fixed to the battery insulation support platform 1, and one end of the two-way terminal of the two-pole double-throw disconnect switch 3 is connected to the insulated heating resistance wire module 5, and the other end is connected to the output terminal of the charging module 4. The common terminal of the two-pole double-throw disconnect switch 3 is connected to the battery. The charging module 4 is set on a support platform on the ground, and the input terminal of the charging module 4 is connected to an external power source.

[0037] The battery module 2 in this embodiment includes a DC rechargeable battery with positive and negative terminals. The positive and negative terminals of the DC rechargeable battery are respectively connected to the two-pole contacts of one end of the bidirectional terminal of the two-pole double-throw disconnect switch 3. The specific capacity and number of DC rechargeable batteries are determined based on the length of the on-site ice-melting line and the resistance of the heating resistance wire. In this embodiment, there are 16 DC rechargeable batteries, but the number can be adjusted according to specific needs. The DC rechargeable batteries are connected in series with each other.

[0038] The battery insulation support platform 1 in this embodiment includes an insulating plate 15, support columns 13, and insulating porcelain columns 14 matching the number of support columns 13. The support columns 13 are fixed to the ground and are at least 2 meters high, creating a safe distance between the battery insulation support platform 1 and the ground to prevent damage to batteries and other components by unauthorized personnel or wild animals. The insulating porcelain columns 14 are fixed to the top of the support columns 13, and the insulating porcelain columns 14 can use insulators 7 with the same structure and withstand voltage strength as those on high-voltage transmission lines. The insulating plate 15 is fixed to the top of the insulating porcelain columns 14 to insulate them from the ground. In this embodiment, four support columns 13 are used for stable support; however, the number of support columns 13 can be adjusted as needed in actual implementation.

[0039] The two-pole double-throw disconnect switch 3 of this embodiment includes an insulating base 19, double-throw conductive blades, an insulating shaft 24, blade 20 support columns, a stationary contact 22, and a terminal block 23. The insulating base 19 is fixed to the top of the battery insulating support platform 1. The double-throw conductive blades include two parallel elongated blades 20 and an insulating shaft 24 with both ends connected to the center of the two blades 20 respectively. The blade 20 support columns include two vertical columns 21 positioned at the center of the insulating base 19. Both ends of the insulating shaft 24 pass through the upper part of one blade 20 and one column 21 respectively, thereby rotatably fixing the two blades 20 to the inner side of the two columns 21 and forming insulation between the two blades 20. The middle position of the two blades 20 is connected to the positive and negative terminals of the battery module 2 respectively through an insulating wire 16. There are four stationary contacts 22, fixed in pairs at both ends of the insulating base 19, corresponding to the ends of the two blades 20 of the double-throw conductive blade. The stationary contacts 22 are made of a metal sheet with a certain elasticity, capable of clamping the conductive blades 20 to connect with the terminals 23. The number of terminals 23 is the same as the number of stationary contacts 22, with one terminal 23 fixed to the bottom of each stationary contact 22. One pair of terminals 23 is connected to the positive and negative terminals of the charging module 4 via insulated wires 16, and the other pair of terminals 23 is connected to the insulated heating resistance wire module 5. Thus, when heating and melting ice on the wire 8 is required, the double-throw conductive blade is switched to the end connected to the insulated heating resistance wire module 5 to connect the battery and the module. When charging the battery is required, the double-throw conductive blade is switched to the end connected to the charging module 4 to connect the battery and the charging module 4. When stopping operation, the double-throw conductive blade is pulled horizontally, not in contact with the terminals 23 at both ends.

[0040] To facilitate operation of the two-pole double-throw disconnector 3, this embodiment also includes an insulated horizontal pull rod 25, an insulated vertical connecting rod 26, a handle support frame 28, and a handle 27. The two ends of the insulated horizontal pull rod 25 pass through and are fixed to two blades 20 respectively. One end of the insulated vertical connecting rod 26 is rotatably connected to the insulated horizontal pull rod 25, and the other end passes through the insulated base 19 and the pre-drilled through hole 18 on the battery insulation support platform 1, extending downwards to near the ground. The handle support frame 28 is fixed to the lower part of the battery insulation support platform 1. One end of the handle 27 is rotatably connected to the insulated vertical connecting rod 26, and the middle of the handle 27 is rotatably connected to the handle support frame 28. This allows the operator to operate the two-pole double-throw disconnector 3 from the ground by pushing the handle 27.

[0041] In addition, in order to disconnect the circuit in case of circuit overload or short circuit to ensure the safety of the ice melting device, this embodiment also provides an air switch 17, the two ends of which are connected to the common terminal of the battery module 2 and the two-pole double-throw isolating switch 3, respectively.

[0042] The insulated heating resistance wire module 5 in this embodiment includes a heating resistance wire, an insulating sleeve, and a binding wire 9.

[0043] One end of the heating resistance wire is connected to a terminal 23 on one of the two-way terminals of the double-throw disconnector 3. The other end of the heating resistance wire extends to one of the conductors 8 of the high-voltage transmission line, extends a predetermined length on conductor 8, then bends back and extends further, finally connecting to the other terminal 23 on the same end of the double-throw disconnector 3 to form a circuit. An insulating sleeve is fitted over the heating resistance wire and is bound to conductor 8 by a binding wire 9. The binding wire 9 can be made of various insulating wires as needed.

[0044] The charging module 4 in this embodiment can be connected to a 220V AC mains power supply, a 380V industrial power supply, or an independent small generator power supply, depending on the specific situation. The charging module 4 itself is a common corresponding device that has the functions of converting AC power to DC power and realizing voltage transformation and stabilization.

[0045] Example 2.

[0046] See Figure 2 This embodiment is used for railway contact network 10. Since the railway contact line 29 has only one phase, this embodiment only configures one insulated heating resistance wire module 5, as well as a corresponding battery module 2, a battery insulation support platform 1, a two-pole double-throw disconnect switch 3, and a charging module 4. The structure and arrangement of the battery module 2, battery insulation support platform 1, two-pole double-throw disconnect switch 3, and charging module 4 are similar to those in embodiment 1.

[0047] The difference from Embodiment 1 is that, since the bottom of the railway contact line 29 needs to be in direct contact with the train pantograph to achieve power supply, the heating resistance wire in this embodiment is fixed to the top of the conductor of the railway contact line 29 by the resistance wire clip 11.

[0048] See Figure 5 The resistor wire clip 11 in this embodiment has a structure similar to a binder clip in stationery, but is larger to accommodate the size of the railway contact line 29. The resistor wire clip 11 includes a clip body and two handles. The clip body is formed by bending an elastic sheet twice in the same direction. The cross-section of the clip body is an isosceles triangle, with the apex between the two legs forming an opening. The two handles are fixed to the outer walls on both sides of the clip body opening, and the length of the handles is greater than the length of the outer walls, allowing the user to open the opening by pressing the handles. Additionally, the inner walls on both sides of the clip body opening in this embodiment are provided with locking teeth 12, which engage with each other when the clip body is closed.

[0049] See Figure 6 In this embodiment, the resistance wire clip 11 is used by clamping it from above the railway contact line 29 downwards, fixing the heating resistance wire inside the clip. The clip teeth 12 clamp the upper groove of the railway contact line 29 itself, thus fixing the heating resistance wire and ensuring that it remains above the railway contact line 29, without obstructing the pantograph of the train. The tail shank of the resistance wire clip is similar in structure to the long-tail clip, also being fixed to the outer wall of the clip body by inserting its end into the fixing cylinder at the edge of the clip body opening. After the clip body holds the railway contact line 29, it can be used like... Figure 6 Remove the tail shank as before to reduce the overall size of the resistance wire clamp 11 and prevent the clamp from loosening due to misoperation during subsequent maintenance.

Claims

1. A grid-suspended battery-based uninterrupted ice-melting device, characterized in that, It includes a battery module (2), a battery insulation support platform (1), a two-pole dual-throw disconnect switch (3), an insulated heating resistance wire module (5), and a charging module (4). The battery insulation support platform (1) is located near the power transmission line; the battery module (2) is fixed on the top of the battery insulation support platform (1); the insulation heating resistance wire module (5) is fixed on the power grid conductor (8); the two-pole double-throw disconnect switch (3) is fixed on the battery insulation support platform (1), and one end of the two-way end of the two-pole double-throw disconnect switch (3) is connected to the insulation heating resistance wire module (5), and the other end is connected to the output end of the charging module (4), while the common end of the two-pole double-throw disconnect switch (3) is connected to the battery module (2); the charging module (4) is located on the support platform on the ground, and the input end of the charging module (4) is connected to an external power source.

2. The grid-suspended battery uninterrupted ice-melting device according to claim 1, characterized in that, The battery module (2) includes at least one DC rechargeable battery with positive and negative terminals. The positive and negative terminals of the DC rechargeable battery are respectively connected to the two-pole contacts of one end of the two-way terminal of the two-pole double-throw isolating switch (3). When there are two or more DC rechargeable batteries, each DC rechargeable battery is connected to each other in series.

3. The grid-suspended battery uninterrupted ice-melting device according to claim 1, characterized in that, The battery insulation support platform (1) includes an insulation plate (15), at least one support column (13), and an insulating ceramic column (14) matching the number of support columns (13); the support column (13) is fixed to the ground and has a height of more than 2 meters; the insulating ceramic column (14) is fixed to the top of the support column (13); the insulation plate (15) is fixed to the top of the insulating ceramic column (14) to insulate it from the ground.

4. The grid-suspended battery uninterrupted ice-melting device according to claim 1, characterized in that, The two-pole double-throw disconnect switch (3) includes an insulating base (19), a double-throw conductive blade, an insulating shaft (24), a blade (20) support column, a stationary contact (22), and a terminal block (23). The insulating base (19) is fixed to the top of the battery insulating support platform (1); the dual-throw conductive blade includes two parallel long strip blades (20) and an insulating shaft (24) with both ends connected to the center of the two blades (20); the blade (20) support column includes two vertical columns (21) set in the center of the insulating base (19), and both ends of the insulating shaft (24) pass through the upper part of one blade (20) and one column (21), thereby rotating and fixing the two blades (20) to the inner side of the two columns (21), and the middle position of the two blades (20) is connected by... Insulated wires (16) are connected to the positive and negative terminals of the battery module (2) respectively; there are four stationary contacts (22), which are fixed in pairs at both ends of the insulating base (19) and their positions correspond to the ends of the two blades (20) of the double-throw conductive blade; the number of terminals (23) is the same as that of the stationary contacts (22), and one terminal (23) is fixed at the bottom of each stationary contact (22), one pair of terminals (23) is connected to the positive and negative terminals of the charging module (4) respectively through insulated wires (16), and the other pair of terminals (23) is connected to the insulated heating resistance wire module (5).

5. The grid-suspended battery uninterrupted ice-melting device according to claim 4, characterized in that, The two-pole double-throw disconnect switch (3) also includes an insulated horizontal pull rod (25), an insulated vertical connecting rod (26), a handle support frame (28), and a handle (27). The two ends of the insulating horizontal tie rod (25) pass through the two blades (20) and are fixed respectively; one end of the insulating vertical connecting rod (26) is rotatably connected to the insulating horizontal tie rod (25), and the other end passes through the through hole (18) reserved on the insulating base (19) and the battery insulating support platform (1) and extends downward to near the ground; the handle support frame (28) is fixed to the lower part of the battery insulating support platform (1); one end of the handle (27) is rotatably connected to the insulating vertical connecting rod (26), and the middle part of the handle (27) is rotatably connected to the handle support frame (28).

6. The grid-suspended battery uninterrupted ice-melting device according to claim 4, characterized in that, It also includes an air switch (17), the two ends of which are connected to the common terminal of the battery module (2) and the two-pole double-throw isolating switch (3), respectively.

7. The grid-suspended battery uninterrupted ice-melting device according to claim 4, characterized in that, The transmission line is a high-voltage transmission line, which includes three conductors (8) for transmitting three-phase electricity; the number of the insulating heating resistance wire modules (5) is the same as the number of conductors (8), and each insulating heating resistance wire module (5) is connected to an independent battery module (2), and each battery module (2) is set on an independent battery insulation support platform (1); The insulated heating resistance wire module (5) includes a heating resistance wire, an insulating sleeve, and a binding wire (9). One end of the heating resistance wire is connected to a terminal (23) at one end of the two-way bidirectional end of the double-throw disconnector (3). The other end of the heating resistance wire extends to one of the conductors (8) of the high-voltage transmission line, and after extending a preset length on the conductor (8), it is folded back and extended, and finally connected to another terminal (23) at the same end of the two-way bidirectional end of the double-throw disconnector (3) to form a circuit. The insulating sleeve is fitted over the heating resistance wire and is tied to the conductor (8) by the binding wire (9).

8. The grid-suspended battery uninterrupted ice-melting device according to claim 1, characterized in that, The power transmission line is a railway contact line (29), which includes a conductor (8) for transmitting single-phase electricity; the insulated heating resistance wire module (5) includes a heating resistance wire, an insulating sleeve, and a resistance wire clamp (11). One end of the heating resistance wire is connected to a terminal (23) at one end of the two-way dual-throw disconnector (3). The other end of the heating resistance wire extends to one of the conductors (8) of the high-voltage transmission line, and after extending a preset length on the conductor (8), it is folded back and extended, and finally connected to another terminal (23) at the same end of the two-way dual-throw disconnector (3) to form a circuit. The insulating sleeve is fitted over the heating resistance wire and fixed to the top of the conductor (8) by the resistance wire clip (11).

9. The grid-suspended battery uninterrupted ice-melting device according to claim 8, characterized in that, The resistance wire clip (11) includes a clip body and two tail handles; the clip body is formed by bending an elastic sheet twice in the same direction, and the cross-section of the clip body is an isosceles triangle, with the vertex between the two legs of the isosceles triangle being an opening; the two tail handles are respectively fixed on the outer walls on both sides of the opening of the clip body, and the length of the tail handles is greater than the length of the outer walls, so that the user can open the opening by pressing the tail handles; the inner walls on both sides of the opening of the clip body are provided with locking teeth (12), and the locking teeth (12) on both sides engage with each other when the clip body is closed.

10. The grid-suspended battery uninterrupted ice-melting device according to claim 1, characterized in that, The external power supply connected to the input terminal of the charging module (4) is one of 220V AC mains power, 380V industrial power, or independent small generator power.