Overhead ground wire fitting string adaptive to ice melting working condition

Abstract

The invention relates to the technical field of overhead ground wire ice melting, and provides an overhead ground wire self-adaptive ice melting working condition fitting string, which comprises a ground wire, a static contact, a moving contact, a fitting string, a moving assembly, a first ground wire and a second ground wire, the fitting string is suitable for being connected to a tower, the moving assembly comprises a moving mechanism and a control mainboard, 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 suitable for being 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, the other end of the second grounding wire is suitable for being connected to a ground wire, and the ground wire is arranged on the fitting string; wherein the control main board is configured to control the moving mechanism to act according to the environment information, and the moving contact can be connected with or separated from the static contact under the driving of the moving mechanism. The device is automatically opened after icing, manual tower climbing is not needed, the time for disconnecting a grounding knife switch when a line is iced is shortened, and quicker ground wire ice melting is realized.

Description

Technical Field

[0001] The invention relates to the technical field of overhead ground wire ice melting, and in particular to an overhead ground wire self-adaptive ice melting working condition hardware string. Background Art

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

[0003] Overhead ground wires refer to wires that are directly connected to the earth on high-voltage and ultra-high-voltage transmission lines. Due to the shielding of overhead ground wires on the wires and the coupling between the wires and overhead ground wires, the chance of lightning directly striking the wires can be reduced. Overhead ground wires have a small wire diameter and are more likely to break when covered with ice, falling onto the transmission line below, causing line faults and power outages. There is no special ice melting circuit for overhead ground wires above transmission lines, so ice melting of overhead ground wires is crucial.

[0004] DC de-icing mainly applies DC voltage to the transmission line and short-circuits the end of the transmission line to heat the conductor to melt the ice of the transmission line, thereby preventing the line from collapsing and breaking due to ice. DC de-icing technology is advanced and does not require a large load, generally only 10,000 to 20,000 kilowatts, and the DC output voltage is adjustable. It can be used to melt ice for single lines of different lengths within a certain range. It is no longer necessary to connect the lines in series. The operation is relatively simple, providing a simpler way for de-icing the lines. At present, the more mature automatic de-icing technology for high-voltage transmission lines is to increase the current in the conductor to exceed the working current, causing the conductor to heat up, so that the ice, snow, rime, etc. attached to the conductor melt and fall off, achieving the purpose of removing them. The current overhead ground wire de-icing connection needs to rely on manual climbing of the wire tower, which has high safety risks and low efficiency. In addition, the existing ground wire de-icing device is mainly mechanical rotary, with complex structure, large size, high cost, low closing accuracy, certain operating risks, and great difficulty in operation and maintenance. Summary of the invention

[0005] The invention provides an overhead ground wire self-adaptive ice-melting working condition hardware string, which is used to solve the problem of low ice-melting efficiency of the existing overhead ground wire.

[0006] The present invention provides an overhead ground wire self-adaptive ice-melting working condition hardware string, comprising: a ground wire, a static contact, a moving contact, a hardware string, a moving component, a first ground wire, a second ground wire and an environmental information acquisition module; The hardware string is suitable for connecting to a pole tower, the moving component includes a moving mechanism and a control main board, the moving mechanism is arranged on the hardware 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 suitable for connecting to a pole tower; the static contact is arranged on the hardware string, one end of the second grounding wire is connected to the static contact, and the other end of the second grounding wire is suitable for connecting to the ground wire, and the ground wire is arranged on the hardware 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 movement of the moving mechanism according to the environmental information determined by the environmental information acquisition module, and under the drive of the mobile mechanism, the moving contact can be connected or separated from the static contact.

[0007] According to an overhead ground wire adaptive ice-melting working condition hardware string provided by the present invention, when the ambient temperature is -10~0°C and the ambient humidity is greater than or equal to 80%, the control mainboard controls the movement of the moving mechanism to separate the moving contact from the static contact.

[0008] According to an overhead ground wire adaptive ice-melting working condition hardware string provided by the present invention, when the ambient temperature is higher than 5°C, or the ambient temperature is lower than -15°C and the ambient humidity is ≤60%, the control mainboard controls the movement of the moving mechanism to connect the moving contact with the static contact.

[0009] According to the present invention, an overhead ground wire adaptive ice melting working condition hardware string is provided, the hardware string comprises a wire clamp, a second connecting plate, a hanging point hardware, a U-shaped hanging ring and a first insulator; the upper end of the hanging point hardware is suitable for connecting to the tower, the lower end of the hanging point hardware is connected to the second connecting plate through the U-shaped hanging ring, the two ends of the lower part of the second connecting plate are respectively connected to a string of the first insulators, and the bottom ends of the two strings of the first insulators are connected to the wire clamp; The moving mechanism is arranged on one end of the first insulator close to the second connecting plate through a first mounting seat, the static contact is arranged on one end of the first insulator close to the wire clamp through a second mounting seat, and the ground wire is arranged on the wire clamp.

[0010] According to an overhead ground wire adaptive ice-melting working condition hardware string provided by the present invention, the first insulator is a composite insulator with an insulating gap; and / or, The two strings of the first insulators are symmetrically distributed.

[0011] According to an overhead ground wire adaptive ice-melting working condition hardware string provided by the present invention, the wire clamp includes a suspension wire clamp or a tension wire clamp.

[0012] According to the overhead ground wire adaptive ice-melting working condition hardware string provided by the present invention, the moving mechanism is a linear moving part; and / or, The moving assembly further includes a second insulator, and the moving contact is connected to the moving mechanism via the second insulator.

[0013] According to the present invention, an overhead ground wire adaptive ice-melting working condition hardware string also includes a human-computer interaction module, which is suitable for being arranged under the pole tower, and is electrically connected to the control main board. The human-computer interaction module is configured to receive user input instructions and display information.

[0014] According to the present invention, an overhead ground wire adaptive ice-melting working condition hardware string also includes a power supply component, the power supply component includes a photovoltaic panel and a battery, the photovoltaic panel is suitable for being arranged on a pole tower, the photovoltaic panel is electrically connected to the battery, and at least one of the moving mechanism and the control main board is electrically connected to the battery.

[0015] According to an overhead ground wire adaptive ice-melting working condition hardware string provided by the present invention, when the moving contact is separated from the static contact, the maximum straight-line distance between the moving contact and the static contact is 240-260 mm.

[0016] The present invention provides an overhead ground wire adaptive ice-melting working condition hardware string. When the control mainboard determines that the environment of the ground wire is not covered with ice according to the current environmental information, the control mainboard controls the movement of the moving mechanism. Under the drive of 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 mainboard determines that the environment of the ground wire is covered with ice or about to be covered with ice according to the current environmental information, the control mainboard controls the movement of the moving mechanism. Under the drive of the moving mechanism, the moving contact separates from the static contact. At this time, the first ground wire and the second ground wire are in a disconnected state, so that the ground wire can be subjected to a DC ice-melting operation. In other words, the moving contact can be flexibly moved under the drive of the moving mechanism. When there is no ice, the moving contact contacts the static contact, thereby achieving grounding. When there is ice or about to be covered with ice, the moving contact separates from the static contact, thereby achieving insulation, taking into account the use requirements of lightning protection grounding and ice-melting insulation. In addition, the switch is automatically opened after ice is covered, and there is no need to manually climb the tower, which reduces the time of disconnecting the grounding knife switch when the line is covered with ice, and achieves faster ground wire ice melting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is one of the structural schematic diagrams of the overhead ground wire adaptive ice-melting working condition hardware string provided by the present invention.

[0019] Figure 2 This is the second structural schematic diagram of the overhead ground wire adaptive ice-melting working condition hardware string provided by the present invention.

[0020] Figure 3 This is the third structural schematic diagram of the overhead ground wire adaptive ice-melting working condition hardware string provided by the present invention.

[0021] Reference numerals: 1. Ground wire; 2. First ground wire; 3. Second ground wire; 4. Moving contact; 5. Static contact; 6. Moving assembly; 61. Moving mechanism; 62. Control main board; 63. Second insulator; 7. Hardware string; 71. Hanging point hardware; 72. U-shaped hanging ring; 73. Second connecting plate; 74. First insulator; 75. Bowl head; 76. Wire clamp; 8. Environmental information collection module; 9. Power supply assembly; 91. Photovoltaic panel; 92. Battery; 10. First mounting seat; 11. Second mounting seat; 12. Pole tower. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0025] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0027] If the power grid is hit by rain, snow and freezing disasters, it will pose a serious threat to the safe operation of the power grid. At present, there is a mature technology for melting ice on conductors, but the overhead ground wire needs to be insulated from the ground to meet the conditions for applying ice-melting current.

[0028] At present, the ground wire ice melting adopts the method of segmented insulation single-point or multi-point grounding. Under non-ice melting conditions, the ground wire adopts single-point or multi-point grounding in an ice melting section. When ice melting is required, it is necessary to manually go up the tower one by one to disconnect the grounding point, which poses a greater safety risk in the case of icing.

[0029] In order to solve the above problems, Figure 1 and Figure 2 As shown, the overhead ground wire adaptive ice-melting working condition hardware string of the embodiment of the present invention includes: a ground wire 1, a static contact 5, a moving contact 4, a hardware string 7, a moving component 6, a first ground wire 2 and a second ground wire 3.

[0030] Specifically, the hardware string 7 is suitable for connecting to the pole tower 12, the moving assembly 6 includes a moving mechanism 61 and a control mainboard 62, the moving mechanism 61 is arranged on the hardware string 7, and the moving contact 4 is arranged on the moving mechanism 61. For example, the control mainboard 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, and the fixed end of the moving mechanism 61 is installed on the hardware 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 suitable for connecting to the pole tower 12. Among them, the first grounding wire 2 has a certain length to meet the movement requirements of the moving contact 4.

[0031] In addition, the static contact 5 is arranged on the hardware 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 suitable for being connected to the ground wire 1, and the ground wire 1 is arranged on the hardware string 7. Among them, the control main board 62 is configured to control the movement of the moving mechanism 61 according to the environmental information, and under the drive of the moving mechanism 61, the moving contact 4 can be connected or separated with the static contact 5.

[0032] like Figure 1 and Figure 2 As shown, it also includes an environmental information acquisition module 8, which is electrically connected to the control mainboard 62. 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, wherein the temperature sensor and the humidity sensor are both installed on the control mainboard 62 and are both electrically connected to the control mainboard 62.

[0033] In actual application, the control mainboard 62 comprehensively determines whether the current environment of the ground wire 1 is not covered with ice, covered with ice, or about to be covered with ice based on the temperature information detected by the temperature sensor and the humidity information detected by the humidity sensor, thereby controlling the moving mechanism 61 to perform corresponding actions.

[0034] It should be noted that when the control main board 62 determines that the environment in which the ground wire 1 is located is not covered with ice according to the current environmental information, the control main board 62 controls the moving mechanism 61 to operate, and under the drive of the moving mechanism 61, the moving contact 4 is in contact with 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 conductive state; when the control main board 62 determines that the environment in which the ground wire 1 is located is covered with ice or is about to be covered with ice according to the current environmental information, the control main board 62 controls the moving mechanism 61 to operate, and under the drive of the moving mechanism 61, the moving contact 4 is separated from the static contact 5. At this time, the first ground wire 2 and the second ground wire 3 are in a disconnected state, so that DC ice melting operation can be performed on the ground wire 1. That is to say, the moving contact 4 can move flexibly under the drive of the moving mechanism 61. When there is no ice, the moving contact 4 is in contact with the static contact 5, thereby achieving grounding. When there is ice or is about to be covered with ice, the moving contact 4 is separated from the static contact 5, thereby achieving insulation, taking into account the use requirements of lightning protection grounding and ice melting insulation. In addition, the switch is automatically opened after ice is covered, and there is no need for manual tower climbing, which reduces the time for disconnecting the grounding switch when the line is covered with ice, and achieves faster ice melting of the ground wire 1.

[0035] 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 mainboard 62 controls the movement mechanism 61 to move so that the moving contact 4 is separated from the static contact 5 .

[0036] In actual applications, when the temperature collected by the temperature sensor and the humidity sensor is -10~0℃ and the humidity is ≥80%, the control main board 62 determines that the current environmental information is in an ice or melting state, controls the moving mechanism 61 to contract, and opens the moving contact 4 and the static contact 5. The ground wire 1 is in an insulating state, and a DC current can be applied to the ground wire 1 to melt the ice.

[0037] 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 is ≤60%, the moving mechanism 61 is controlled to extend, the moving contact 4 and the static contact 5 are closed, and the ground wire 1 is grounded.

[0038] In some embodiments, Figure 1 and Figure 2 As shown, the hardware string 7 includes a wire clamp 76, a second connecting plate 73, a hanging point hardware 71, a U-shaped hanging ring 72, and a first insulator 74; the upper end of the hanging point hardware 71 is suitable for connecting to the tower 12, and the lower end of the hanging point hardware 71 is connected to the second connecting plate 73 through the U-shaped hanging ring 72, and the two ends of the lower part of the second connecting plate 73 are respectively connected to a string of first insulators 74, and the bottom ends of the two strings of first insulators 74 are connected to the wire clamp 76. In addition, the two strings of first insulators 74 are symmetrically distributed.

[0039] Among them, the moving mechanism 61 is set on the first insulator 74 at one end close to the second connecting plate 73 through the first mounting seat 10, the static contact 5 is set on the first insulator 74 at one end close to the wire clamp 76 through the second mounting seat 11, and the ground wire 1 is set on the wire clamp 76.

[0040] It should be noted that the first mounting seat 10 includes a first mounting plate and a second mounting plate, wherein the first mounting plate and the second mounting plate both 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 installed on the connecting portion, so that the moving mechanism 61 and the first insulator 74 can be installed. Among them, the structure of the second mounting seat 11 is similar to that of the first mounting seat 10, and will not be repeated here.

[0041] It is particularly important to point out that the first mounting seat 10 and the second mounting seat 11 are installed on the same string of first insulators 74, that is, 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 opposite to each other, so that the alignment of the moving contact 4 and the static contact 5 can be ensured.

[0042] In some embodiments, the first insulator 74 is a composite insulator with an insulating gap.

[0043] 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 melts and passes the ground wire 1 melting current specified in the design, the first insulator 74 will not be broken down, thereby ensuring the effective insulation of the ground wire 1. 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 earth through the gap, and will not affect the lightning protection effect of the ground wire 1.

[0044] In some embodiments, the wire clamp 76 comprises a suspension wire clamp or a tension wire clamp.

[0045] Specifically, Figure 1 As shown, the wire clamp 76 is a suspension wire clamp, and there are two suspension wire clamps, one of which is connected to a string of first insulators 74 through a bowl head 75, and the other suspension wire clamp is connected to another string of first insulators 74 through another bowl head 75. In this way, the ground wire 1 is connected to two suspension wire clamps at the same time.

[0046] like Figure 2 As shown, the wire clamp 76 is a tension wire clamp. At this time, another double-joint plate 73 is respectively connected to two strings of first insulators 74 through two bowl heads 75, and the tension wire clamp is connected to the double-joint plate 73. In this way, the ground wire 1 is connected to the tension wire clamp.

[0047] In some embodiments, the moving mechanism 61 is a linear moving member. For example, the moving mechanism 61 can be an electric push rod, a cylinder, a hydraulic rod, etc. Figure 1 and Figure 2 As shown, the moving assembly 6 further includes a second insulator 63 , and the moving contact 4 is connected to the moving mechanism 61 via the second insulator 63 .

[0048] 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 .

[0049] In some embodiments, a human-computer interaction module is also included. The human-computer interaction module is suitable for being arranged below the tower 12. The human-computer interaction module is electrically connected to the control mainboard 62. The human-computer interaction module is configured to receive user input commands and display information.

[0050] The human-computer interaction module receives user input commands through input devices such as touch screens, buttons, and keyboards. Users can input control parameters, select operation modes, or perform specific functions. For example, control the extension or shortening of the electric push rod. The human-computer interaction module is equipped with a display screen for real-time display of device status, operation prompts, error messages, and other information. The display screen can display text, graphics, animations, and other information to improve the readability and intuitiveness of the information. For example, the display screen can display temperature information, humidity information, and so on.

[0051] In addition, the human-machine interaction module is electrically connected to the control mainboard 62 through a cable, bus, etc. The control mainboard 62 is responsible for processing the instructions and data transmitted from the human-machine interaction module and controlling the operation of the device.

[0052] In practical applications, the setting of the human-machine interaction module below the tower 12 not only improves the interactivity and user-friendliness of the device, but also provides strong support for remote monitoring and intelligent control of the device. In other words, manual closing or opening of the switch can be achieved.

[0053] In some embodiments, Figure 1 and Figure 2 As shown, it also includes a power supply component 9, which includes a photovoltaic panel 91 and a battery 92. The photovoltaic panel 91 is suitable for being arranged on the pole tower 12, and the photovoltaic panel 91 is electrically connected to the battery 92. At least one of the moving mechanism 61 and the control main board 62 is electrically connected to the battery 92.

[0054] It should be noted that the photovoltaic panel 91 converts sunlight into electrical energy through the photoelectric effect. The photovoltaic panel 91 is electrically connected to the battery 92 through wires or cables, and the generated electrical energy is stored in the battery 92. The battery 92 is used to store the electrical energy generated by the photovoltaic panel 91 and provide power to components such as the moving mechanism 61 and the control main board 62 when needed.

[0055] Exemplarily, the battery 92 can provide power to the control main board 62, the electric push rod, the temperature sensor, the humidity sensor, and the like.

[0056] In some embodiments, when the moving contact 4 is separated from the stationary contact 5, the maximum straight-line distance between the moving contact 4 and the stationary contact 5 is 240-260 mm. For example, the maximum straight-line distance is 240 mm, 250 mm, or 260 mm.

[0057] It should be noted that after the moving contact 4 is retracted, the straight-line distance to the static contact 5 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.

[0058] It can be seen from the above that the insulation and grounding status of the overhead ground wire adaptive ice-melting condition hardware string in the embodiment of the present invention can be automatically or manually adjusted according to different needs; by adjusting the overhead ground wire adaptive ice-melting condition hardware string to the grounding state before the tower operation, the induced voltage of the ground wire 1 can be avoided from posing a threat to the operating personnel; the overhead ground wire adaptive ice-melting condition hardware string is adjusted to the grounding state when not in the ice-melting state, and the ground wire 1 has a good lightning protection and grounding function; the overhead ground wire adaptive ice-melting condition hardware string is adjusted to the insulating state when in the ice-melting state, and a DC current can be applied to the ground wire 1 to melt the ice on the ground wire 1.

[0059] It is particularly important to point out that Figure 1 As shown, the hardware string 7 will not affect the opening and closing of the moving contact 4 and the static contact 5 under static conditions. Figure 3 As shown, the hardware string 7 will not affect the opening and closing of the moving contact 4 and the static contact 5 under the swinging condition.

[0060] 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 it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An overhead ground wire self-adaptive ice-melting working condition hardware string, characterized in that: include: A ground wire, a static contact, a moving contact, a hardware string, a moving component, a first ground wire, a second ground wire, and an environmental information acquisition module; The hardware string is suitable for connecting to a pole tower, the moving component includes a moving mechanism and a control main board, the moving mechanism is arranged on the hardware 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 suitable for connecting to a pole tower; the static contact is arranged on the hardware string, one end of the second grounding wire is connected to the static contact, and the other end of the second grounding wire is suitable for connecting to the ground wire, and the ground wire is arranged on the hardware 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 movement of the moving mechanism according to the environmental information determined by the environmental information acquisition module, and under the drive of the mobile mechanism, the moving contact can be connected or separated from the static contact.

2. The overhead ground wire adaptive ice-melting working condition hardware string according to claim 1 is characterized in that: When the ambient temperature is -10 to 0°C and the ambient humidity is greater than or equal to 80%, the control mainboard controls the movement of the moving mechanism to separate the moving contact from the static contact.

3. The overhead ground wire adaptive ice melting working condition hardware string according to claim 1, characterized in that: When the ambient temperature is higher than 5°C, or the ambient temperature is lower than -15°C and the ambient humidity is ≤60%, the control mainboard controls the movement mechanism to connect the moving contact with the static contact.

4. The overhead ground wire adaptive ice-melting working condition hardware string according to any one of claims 1 to 3, characterized in that: The hardware string includes a wire clamp, a second connecting plate, a hanging point hardware, a U-shaped hanging ring and a first insulator; the upper end of the hanging point hardware is suitable for connecting to the pole tower, the lower end of the hanging point hardware is connected to the second connecting plate through the U-shaped hanging ring, the two ends of the lower part of the second connecting plate are respectively connected to a string of the first insulators, and the bottom ends of the two strings of the first insulators are connected to the wire clamp; The moving mechanism is arranged on one end of the first insulator close to the second connecting plate through a first mounting seat, the static contact is arranged on one end of the first insulator close to the wire clamp through a second mounting seat, and the ground wire is arranged on the wire clamp.

5. The overhead ground wire adaptive ice-melting working condition hardware string according to claim 4, characterized in that: The first insulator is a composite insulator with an insulating gap; and / or, The two strings of the first insulators are symmetrically distributed.

6. The overhead ground wire adaptive ice-melting working condition hardware string according to claim 4, characterized in that: The wire clamp includes a suspension wire clamp or a tension wire clamp.

7. The overhead ground wire adaptive ice-melting working condition hardware string according to any one of claims 1 to 3, characterized in that: The moving mechanism is a linear moving member; and / or, The moving assembly further includes a second insulator, and the moving contact is connected to the moving mechanism via the second insulator.

8. The overhead ground wire adaptive ice-melting working condition hardware string according to any one of claims 1 to 3, characterized in that: It also includes a human-computer interaction module, which is suitable for being arranged below the tower, and is electrically connected to the control mainboard, and is configured to receive instructions input by a user and display information.

9. The overhead ground wire adaptive ice-melting working condition hardware string according to any one of claims 1 to 3, characterized in that: It also includes a power supply component, which includes a photovoltaic panel and a battery. The photovoltaic panel is suitable for being arranged on a pole tower, the photovoltaic panel is electrically connected to the battery, and at least one of the moving mechanism and the control main board is electrically connected to the battery.

10. The overhead ground wire adaptive ice-melting working condition hardware string according to any one of claims 1 to 3, characterized in that: When the moving contact is separated from the stationary contact, the maximum straight-line distance between the moving contact and the stationary contact is 240-260 mm.

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