Overhead ground wire adaptive ice melting condition fitting string

Abstract

The present invention relates to the technical field of overhead ground wire de-icing, and provides an overhead ground wire self-adaptive de-icing working condition fitting string, which includes a ground wire, a static contact, a moving contact, a fitting string, a moving component, a first grounding wire and a second grounding wire; the fitting string is adapted to be connected to a tower, the moving component includes a moving mechanism and a control main board, the moving mechanism is arranged on the fitting string, the moving contact is arranged on the moving mechanism, one end of the first grounding wire is connected to the moving contact, and the other end of the first grounding wire is adapted to be connected to the tower; the static contact is arranged on the fitting string, one end of the second grounding wire is connected to the static contact, and the other end of the second grounding wire is adapted to be connected to the ground wire, and the ground wire is arranged on the fitting string; wherein, the control main board is configured to control the action of the moving mechanism according to environmental information, and under the drive of the moving mechanism, the moving contact can be connected to or separated from the static contact. It automatically trips after icing, eliminating the need for manual tower climbing, reducing the time for disconnecting the grounding switch during line icing, and achieving faster de-icing of the ground wire.

Description

Technical Field

[0001] The present invention relates to the technical field of overhead ground wire de-icing, and particularly to an overhead ground wire fitting string adaptable to de-icing working conditions. Background Art

[0002] High-voltage transmission lines generally refer to transmission lines for transmitting voltages above 110 kV. High-voltage power transmission generally uses insulated cables for underground transmission in cities and overhead lines supported by iron towers in the wild. When the overhead lines in the wild pass through areas where ice and snow or freezing rain often occur, they are often adversely affected, and the probability of line icing is extremely high. Line icing refers to the situation where all the wires within a certain range are covered by ice.

[0003] An overhead ground wire is a wire directly connected to the ground on high-voltage and extra-high-voltage transmission lines. Due to the shielding of the overhead ground wire for the conductor and the coupling effect between the conductor and the overhead ground wire, the chance of lightning directly hitting the conductor can be reduced. The diameter of the overhead ground wire is small, and it is more likely to break under icing conditions and fall on the transmission line below it, resulting in line fault tripping and power outage. Since there is no dedicated de-icing circuit for the overhead ground wire above the transmission line, the de-icing of the overhead ground wire is crucial.

[0004] DC de-icing mainly melts the transmission line by applying a DC voltage to the transmission line and short-circuiting at the end of the transmission line, so that the conductor generates heat. This can avoid the transmission line from falling poles and breaking wires due to icing. The DC de-icing technology is advanced and does not require a large load, generally only 10,000 to 20,000 kW. Moreover, the DC output voltage is adjustable, and it can de-ice single lines of different lengths within a certain range without the need for line connection in series, and the operation is relatively simple, providing a more convenient way for the de-icing work of the line. Currently, the more mature high-voltage transmission line automatic de-icing technology is to increase the current in the conductor to exceed the working current, causing the conductor to generate heat, so that the ice, snow, rime, etc. attached to the conductor melt and fall off to achieve the purpose of removing them. At present, the de-icing connection of the overhead ground wire needs to rely on manual climbing of the stringing iron tower, which has high safety risks and low efficiency. Moreover, the existing ground wire de-icing devices are mainly mechanical rotary types, with complex structures, large volumes, high costs, low closing accuracy, certain operation risks, and great operation and maintenance difficulties. Summary of the Invention

[0005] The present invention provides an overhead ground wire fitting string adaptable to de-icing working conditions to solve the problem of low efficiency of existing overhead ground wire de-icing.

[0006] The present invention provides an overhead ground wire fitting string adaptable to de-icing working conditions, including: a ground wire, a static contact, a moving contact, a fitting string, a moving component, a first ground wire, a second ground wire, and an environmental information acquisition module;

[0007] The fitting string is adapted to be connected to a pole tower. The moving assembly includes a moving mechanism and a control main board. The moving mechanism is disposed on the fitting string. The moving contact is disposed on the moving mechanism. One end of the first ground wire is connected to the moving contact, and the other end of the first ground wire is adapted to be connected to the pole tower. The static contact is disposed on the fitting string. One end of the second ground wire is connected to the static contact, and the other end of the second ground wire is adapted to be connected to the ground wire. The ground wire is disposed on the fitting string. Wherein, the environmental information acquisition module is electrically connected to the control main board. The environmental information acquisition module includes at least one of a temperature sensor and a humidity sensor. The control main board is configured to control the moving mechanism to act according to the environmental information determined by the environmental information acquisition module. Driven by the moving mechanism, the moving contact can be connected to or separated from the static contact.

[0008] According to an overhead ground wire self - adaptive ice - melting condition fitting string provided by the present invention, in the case where the environmental temperature is - 10 to 0 °C and the environmental humidity is greater than or equal to 80%, the control main board controls the moving mechanism to act so that the moving contact is separated from the static contact.

[0009] According to an overhead ground wire self - adaptive ice - melting condition fitting string provided by the present invention, when the environmental temperature is higher than 5 °C, or the environmental temperature is lower than - 15 °C and the environmental humidity ≤ 60%, the control main board controls the moving mechanism to act so that the moving contact is connected to the static contact.

[0010] According to an overhead ground wire self - adaptive ice - melting condition fitting string provided by the present invention, the fitting string includes a clamp, a two - link plate, a hanging point fitting, a U - shaped hanging ring, and a first insulator. The upper end of the hanging point fitting is adapted to be connected to the pole tower. The lower end of the hanging point fitting is connected to the two - link plate through the U - shaped hanging ring. Two strings of the first insulators are respectively connected to the lower parts of the two ends of the two - link plate. The bottom ends of the two strings of the first insulators are connected with the clamp.

[0011] Wherein, the moving mechanism is disposed on one end of the first insulator close to the two - link plate through a first mounting seat. The static contact is disposed on one end of the first insulator close to the clamp through a second mounting seat. The ground wire is disposed on the clamp.

[0012] According to an overhead ground wire self - adaptive ice - melting condition fitting string provided by the present invention, the first insulator is a composite insulator with an insulating gap; and / or,

[0013] The two strings of the first insulators are symmetrically distributed.

[0014] According to an overhead ground wire self - adaptive ice - melting condition fitting string provided by the present invention, the clamp includes a suspension clamp or a strain clamp.

[0015] According to an overhead ground wire self - adaptive ice - melting condition fitting string provided by the present invention, the moving mechanism is a linear moving part; and / or,

[0016] The moving assembly further includes a second insulator, and the moving contact is connected to the moving mechanism through the second insulator.

[0017] According to an overhead ground wire self - adaptive ice - melting condition fitting string provided by the present invention, it further includes a human - machine interaction module. The human - machine interaction module is suitable for being arranged under the tower pole. The human - machine interaction module is electrically connected to the control main board, and the human - machine interaction module is configured to receive instructions input by the user and display information.

[0018] According to an overhead ground wire self - adaptive ice - melting condition fitting string provided by the present invention, it further includes a power supply assembly. The power supply assembly includes a photovoltaic panel and a storage battery. The photovoltaic panel is suitable for being arranged on the tower pole. The photovoltaic panel is electrically connected to the storage battery, and at least one of the moving mechanism and the control main board is electrically connected to the storage battery.

[0019] According to an overhead ground wire self - adaptive ice - melting condition fitting string provided by the present invention, in the case where the moving contact is separated from the static contact, the maximum linear distance between the moving contact and the static contact is 240 - 260 mm.

[0020] For an overhead ground wire self - adaptive ice - melting condition fitting string provided by the present invention, when the control main board determines that the environment where the ground wire is located is ice - free according to the current environmental information, the control main board controls the moving mechanism to act. Driven by the moving mechanism, the moving contact contacts the static contact. At this time, the first ground wire, the second ground wire, and the ground wire are in a conducting state; when the control main board determines that the environment where the ground wire is located is ice - covered or about to be ice - covered according to the current environmental information, the control main board controls the moving mechanism to act. Driven by the moving mechanism, the moving contact is separated from the static contact. At this time, the first ground wire and the second ground wire are in an open state. In this way, DC ice - melting operation can be carried out on the ground wire. That is to say, the moving contact can move flexibly under the drive of the moving mechanism. When there is no ice - covering, the moving contact contacts the static contact, thereby realizing grounding. When there is ice - covering or about to be ice - covered, the moving contact is separated from the static contact, thereby realizing insulation, taking into account the usage requirements of lightning protection grounding and ice - melting insulation. In addition, it automatically switches off after ice - covering, eliminating the need for manual climbing of the tower, reducing the time for disconnecting the grounding switch when the line is ice - covered, and realizing faster ice - melting of the ground wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is one of the schematic structural diagrams of the overhead ground wire self - adaptive ice - melting condition fitting string provided by the present invention.

[0023] Figure 2 It is another schematic structural diagram of the overhead ground wire self - adaptive ice - melting condition fitting string provided by the present invention.

[0024] Figure 3 It is the third schematic structural diagram of the overhead ground wire self - adaptive ice - melting condition fitting string provided by the present invention.

[0025] Reference numerals:

[0026] 1. Ground wire; 2. First grounding wire; 3. Second grounding wire; 4. Moving contact; 5. Static contact; 6. Moving component; 61. Moving mechanism; 62. Control main board; 63. Second insulator; 7. Fitting string; 71. Hanging point fitting; 72. U - shaped hanging ring; 73. Two - link plate; 74. First insulator; 75. Socket head; 76. Line clamp; 8. Ambient information acquisition module; 9. Power supply component; 91. Photovoltaic panel; 92. Storage battery; 10. First mounting seat; 11. Second mounting seat; 12. Tower. Detailed implementation manners

[0027] To make the purpose, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the present invention with reference to the drawings in the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0028] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0029] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0030] In the embodiments of the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0031] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0032] If the power grid suffers from rain, snow and ice disasters, it will pose a serious threat to the safe operation of the power grid. At present, there are mature technologies for conductor de-icing, while the overhead ground wire needs to be insulated from the ground to meet the condition of applying de-icing current.

[0033] At present, the method for de-icing the ground wire is to adopt a segmented insulation single-point or multi-point grounding method. Under non-de-icing conditions, the ground wire is grounded at a single point or multiple points within a de-icing section. When de-icing is required, it is necessary for workers to climb the tower one by one to disconnect the grounding points, which has a relatively high safety risk under icing conditions.

[0034] To solve the above problems, as Figure 1 and Figure 2 shown, the overhead ground wire self-adaptive de-icing condition fitting string of the embodiment of the present invention includes: ground wire 1, static contact 5, moving contact 4, fitting string 7, moving component 6, first grounding wire 2 and second grounding wire 3.

[0035] Specifically, the fitting string 7 is adapted to be connected to the tower 12. The moving component 6 includes a moving mechanism 61 and a control main board 62. The moving mechanism 61 is arranged on the fitting string 7, and the moving contact 4 is arranged on the moving mechanism 61. Exemplarily, the control main board 62 can be arranged at the fixed end of the moving mechanism 61, and the moving contact 4 is arranged at the free end of the moving mechanism 61. Moreover, the fixed end of the moving mechanism 61 is installed on the fitting string 7. At this time, one end of the first grounding wire 2 is connected to the moving contact 4, and the other end of the first grounding wire 2 is adapted to be connected to the tower 12. Among them, the first grounding wire 2 has a certain length to meet the moving requirements of the moving contact 4.

[0036] In addition, the static contact 5 is arranged on the fitting string 7. One end of the second grounding wire 3 is connected to the static contact 5, and the other end of the second grounding wire 3 is adapted to be connected to the ground wire 1. The ground wire 1 is arranged on the fitting string 7. Among them, the control main board 62 is configured to control the action of the moving mechanism 61 according to the environmental information. Driven by the moving mechanism 61, the moving contact 4 can be connected to or separated from the static contact 5.

[0037] As Figure 1 and Figure 2 shown, it further includes an environmental information acquisition module 8. The environmental information acquisition module 8 is electrically connected to the control main board 62. Among them, the environmental information acquisition module 8 includes at least one of a temperature sensor and a humidity sensor. Exemplarily, the environmental information acquisition module 8 includes a temperature sensor and a humidity sensor. Among them, the temperature sensor and the humidity sensor are both installed on the control main board 62 and are both electrically connected to the control main board 62.

[0038] In practical applications, the control main board 62 comprehensively judges whether the current environment where the ground wire 1 is located is non-icing, icing or about to ice according to the temperature information detected by the temperature sensor and the humidity information detected by the humidity sensor, so as to control the moving mechanism 61 to perform corresponding actions.

[0039] It should be noted that when the control main board 62 determines that the environment where the ground wire 1 is located is ice-free according to the current environmental information, the control main board 62 controls the movement mechanism 61 to act. Driven by the movement mechanism 61, the moving contact 4 contacts the static contact 5. At this time, the first ground wire 2, the second ground wire 3, and the ground wire 1 are in a conducting state; when the control main board 62 determines that the environment where the ground wire 1 is located is ice-covered or about to be ice-covered according to the current environmental information, the control main board 62 controls the movement mechanism 61 to act. Driven by the movement mechanism 61, the moving contact 4 separates from the static contact 5. At this time, the first ground wire 2 and the second ground wire 3 are in an open state. In this way, DC ice melting operation can be carried out on the ground wire 1. That is to say, the moving contact 4 can move flexibly driven by the movement mechanism 61. When there is no ice covering, the moving contact 4 contacts the static contact 5, thus realizing grounding. When there is ice covering or about to be ice-covered, the moving contact 4 separates from the static contact 5, thus realizing insulation, taking into account the usage requirements of lightning protection grounding and ice melting insulation. In addition, it automatically trips after ice covering, eliminating the need for manual tower climbing, reducing the time for disconnecting the grounding knife switch when the line is ice-covered, and realizing faster ice melting of the ground wire 1.

[0040] In some embodiments, when the ambient temperature is -10 to 0 °C and the ambient humidity is greater than or equal to 80%, the control main board 62 controls the movement mechanism 61 to act so that the moving contact 4 separates from the static contact 5.

[0041] In practical applications, when the temperature collected by the temperature sensor and the humidity sensor is -10 to 0 °C and the humidity ≥ 80%, the control main board 62 determines that the current environmental information is in an ice-covered or about-to-melt-ice state, controls the movement mechanism 61 to contract, separates the moving contact 4 and the static contact 5, and the ground wire 1 is in an insulated state. A DC current can be applied to the ground wire 1 to realize ice melting of the ground wire 1.

[0042] When the temperature collected by the temperature sensor and the humidity sensor is higher than 5 °C, or the temperature is lower than -15 °C and the humidity ≤ 60%, the movement mechanism 61 is controlled to extend, the moving contact 4 and the static contact 5 are closed, and grounding of the ground wire 1 is realized.

[0043] In some embodiments, as Figure 1 and Figure 2 shown, the hardware string 7 includes a clamp 76, a two-link plate 73, a suspension fitting 71, a U-shaped hanging ring 72, and a first insulator 74; the upper end of the suspension fitting 71 is adapted to be connected to the tower 12, the lower end of the suspension fitting 71 is connected to the two-link plate 73 through the U-shaped hanging ring 72, and two strings of first insulators 74 are respectively connected to the lower parts of both ends of the two-link plate 73. The bottoms of the two strings of first insulators 74 are connected to the clamp 76. In addition, the two strings of first insulators 74 are symmetrically distributed.

[0044] Among them, the moving mechanism 61 is arranged on one end of the first insulator 74 close to the two-link plate 73 through the first mounting seat 10, the static contact 5 is arranged on one end of the first insulator 74 close to the clamp 76 through the second mounting seat 11, and the ground wire 1 is arranged on the clamp 76.

[0045] It should be noted that the first mounting seat 10 includes a first mounting plate and a second mounting plate. Among them, both the first mounting plate and the second mounting plate include an arc-shaped mounting portion and a connecting portion connected to the arc-shaped mounting portion. The two arc-shaped mounting portions are clamped on the outer periphery of the first insulator 74, and the fixed end of the moving mechanism 61 is mounted on the connecting portion. In this way, the installation of the moving mechanism 61 and the first insulator 74 can be realized. Among them, the structure of the second mounting seat 11 is similar to that of the first mounting seat 10, and will not be elaborated here.

[0046] It should be particularly pointed out that the first mounting seat 10 and the second mounting seat 11 are mounted on the same string of first insulators 74. That is to say, the first mounting seat 10 and the second mounting seat 11 are arranged in sequence along the length direction of the first insulator 74, and the first mounting seat 10 and the second mounting seat 11 are arranged oppositely. In this way, the centering degree of the moving contact 4 and the static contact 5 can be ensured.

[0047] In some embodiments, the first insulator 74 is a composite insulator with an insulating gap.

[0048] It should be noted that in order to ensure the lightning protection effect of the ground wire 1, the first insulator 74 is a composite insulator with an insulating gap. When the ground wire 1 is de-iced, when the ground wire 1 passes through the designed ground wire 1 de-icing current, the first insulator 74 will not be punctured, and the effective insulation of the ground wire 1 can be ensured; when the ground wire 1 is struck by lightning, the existence of the insulating gap can ensure that the lightning current flows smoothly into the ground through the gap and will not affect the lightning protection effect of the ground wire 1.

[0049] In some embodiments, the clamp 76 includes a suspension clamp or a strain clamp.

[0050] Specifically, as Figure 1 shown, the clamp 76 is a suspension clamp, and the number of suspension clamps is two. One suspension clamp is connected to a string of first insulators 74 through a swivel 75, and the other suspension clamp is connected to another string of first insulators 74 through another swivel 75. In this way, the ground wire 1 is connected to the two suspension clamps at the same time.

[0051] As Figure 2 shown, the clamp 76 is a strain clamp. At this time, another two-link plate 73 is respectively connected to two strings of first insulators 74 through two swivels 75, and the strain clamp is connected to the two-link plate 73. In this way, the ground wire 1 is connected to the strain clamp.

[0052] In some embodiments, the moving mechanism 61 is a linear moving member. Exemplarily, the moving mechanism 61 can be an electric push rod, a cylinder, a hydraulic rod, etc. In some embodiments, as Figure 1 and Figure 2 shown, the moving assembly 6 further includes a second insulator 63, and the moving contact 4 is connected to the moving mechanism 61 through the second insulator 63.

[0053] It should be noted that the function of the second insulator 63 is to prevent the induced electricity of the ground wire 1 from affecting the electric push rod and the control main board 62.

[0054] In some embodiments, a human-machine interaction module is further included. The human-machine interaction module is adapted to be arranged below the pole tower 12. The human-machine interaction module is electrically connected to the control main board 62 and is configured to receive instructions input by the user and display information.

[0055] Among them, the human-machine interaction module receives instructions input by the user through input devices such as a touch screen, buttons, and a keyboard. The user can input control parameters, select an operation mode, or execute a specific function, etc. For example, control the extension or shortening of the electric push rod. The human-machine interaction module is equipped with a display screen for real-time display of information such as the device status, operation prompts, and error messages. The display screen can display various information forms such as text, graphics, and animations, improving the readability and intuitiveness of the information. For example, the display screen can display temperature information, humidity information, etc.

[0056] In addition, the human-machine interaction module is electrically connected to the control main board 62 through connection methods such as cables and buses. The control main board 62 is responsible for processing the instructions and data transmitted by the human-machine interaction module and controlling the operation of the device.

[0057] In practical applications, the arrangement of the human-machine interaction module below the pole tower 12 not only improves the interactivity and user-friendliness of the device but also provides strong support for the remote monitoring and intelligent control of the device. That is to say, manual closing or opening can be realized.

[0058] In some embodiments, as Figure 1 and Figure 2 shown, a power supply assembly 9 is further included. The power supply assembly 9 includes a photovoltaic panel 91 and a storage battery 92. The photovoltaic panel 91 is adapted to be arranged on the pole tower 12. The photovoltaic panel 91 is electrically connected to the storage battery 92, and at least one of the moving mechanism 61 and the control main board 62 is electrically connected to the storage battery 92.

[0059] It should be noted that the photovoltaic panel 91 converts sunlight into electrical energy through the photovoltaic effect. The photovoltaic panel 91 and the storage battery 92 are electrically connected through wires or cables, and the generated electrical energy is stored in the storage battery 92. The storage battery 92 is used to store the electrical energy generated by the photovoltaic panel 91 and provide power for components such as the moving mechanism 61 and the control main board 62 when needed.

[0060] Exemplarily, the storage battery 92 can supply power to the control main board 62, the electric push rod, the temperature sensor, the humidity sensor, etc.

[0061] In some embodiments, when the moving contact 4 is separated from the static contact 5, the maximum linear distance between the moving contact 4 and the static contact 5 is 240-260 mm. For example, the maximum linear distances are 240 mm, 250 mm, and 260 mm.

[0062] It should be noted that the linear distance between the moving contact 4 and the static contact 5 after the moving contact 4 contracts can reach 250 mm. On the premise of ensuring the ice melting function, it also has the function of preventing overvoltage such as line short circuit.

[0063] As can be seen from the above, the insulation and grounding states of the overhead ground wire adaptive ice melting condition fitting string in the embodiments of the present invention can be automatically or manually adjusted according to different needs; before working on the tower, by adjusting the overhead ground wire adaptive ice melting condition fitting string to the grounded state, the induced voltage of the ground wire 1 can be avoided from threatening the operators; in the non-prepared ice melting state, when the overhead ground wire adaptive ice melting condition fitting string is adjusted to the grounded state, the ground wire 1 has a good lightning protection and grounding function; in the ice melting state, when the overhead ground wire adaptive ice melting condition fitting string is adjusted to the insulated state, a direct current can be applied to the ground wire 1 at this time to realize ice melting of the ground wire 1.

[0064] It should be particularly pointed out that, as Figure 1 shown, the fitting string 7 does not affect the opening and closing of the moving contact 4 and the static contact 5 under static conditions. As Figure 3 shown, the fitting string 7 does not affect the opening and closing of the moving contact 4 and the static contact 5 under swinging conditions.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An overhead ground wire adaptive ice melting condition fitting string, characterized in that Comprising: A ground wire, a static contact, a moving contact, a fitting string, a moving component, a first ground wire, a second ground wire, and an environmental information acquisition module; The fitting string is adapted to be connected to a tower pole. The moving component includes a moving mechanism and a control main board. The moving mechanism is disposed on the fitting string. The moving contact is disposed on the moving mechanism. One end of the first ground wire is connected to the moving contact, and the other end of the first ground wire is adapted to be connected to the tower pole. The static contact is disposed on the fitting string. One end of the second ground wire is connected to the static contact, and the other end of the second ground wire is adapted to be connected to the ground wire. The ground wire is disposed on the fitting string. Wherein, the environmental information acquisition module is electrically connected to the control main board. The environmental information acquisition module includes at least one of a temperature sensor and a humidity sensor. The control main board is configured to control the moving mechanism to act according to the environmental information determined by the environmental information acquisition module. Driven by the moving mechanism, the moving contact can be connected to or separated from the static contact; In the case where the environmental temperature is -10~0°C and the environmental humidity is greater than or equal to 80%, the control main board controls the moving mechanism to act so that the moving contact is separated from the static contact; When the environmental temperature is higher than 5°C, or the environmental temperature is lower than -15°C and the environmental humidity ≤ 60%, the control main board controls the moving mechanism to act so that the moving contact is connected to the static contact; The fitting string includes a clamp, a two-link plate, a hanging point fitting, a U-shaped hanging ring, and a first insulator; the upper end of the hanging point fitting is adapted to be connected to the tower pole, the lower end of the hanging point fitting is connected to the two-link plate through the U-shaped hanging ring, and two strings of the first insulators are respectively connected to the lower ends of the two-link plate. The bottom ends of the two strings of the first insulators are connected with the clamp; Wherein, the moving mechanism is disposed on one end of the first insulator close to the two-link plate through a first mounting seat, the static contact is disposed on one end of the first insulator close to the clamp through a second mounting seat, and the ground wire is disposed on the clamp.

2. The overhead ground wire adaptive ice melting condition fitting string according to claim 1, wherein The first insulator is a composite insulator with an insulating gap; and / or, The two strings of the first insulators are symmetrically distributed.

3. The spacer dampers for the overhead ground wire adapted to ice melting conditions according to claim 1, wherein The clamp includes a suspension clamp or a strain clamp.

4. The overhead ground wire self-adaptive ice melting condition fitting string according to claim 1, characterized in that The moving mechanism is a linear moving member; and / or, The moving component further includes a second insulator, and the moving contact is connected to the moving mechanism through the second insulator.

5. The overhead ground wire adaptive ice melting condition fitting string according to claim 1, characterized in that, It further includes a human-machine interaction module. The human-machine interaction module is adapted to be disposed under the tower pole. The human-machine interaction module is electrically connected to the control main board. The human-machine interaction module is configured to receive instructions input by a user and display information.

6. The overhead ground wire adaptive ice melting condition fitting string according to claim 1, characterized in that, It further includes a power supply component. The power supply component includes a photovoltaic panel and a storage battery. The photovoltaic panel is adapted to be disposed on the tower pole. The photovoltaic panel is electrically connected to the storage battery. At least one of the moving mechanism and the control main board is electrically connected to the storage battery.

7. The overhead ground wire self-adaptive ice melting condition fitting string according to claim 1, wherein In the case where the moving contact is separated from the static contact, the maximum linear distance between the moving contact and the static contact is 240~260mm.

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