Self-generating device and monitoring equipment for dynamic capacity increase of power transmission line

Abstract

The utility model relates to the technical field of self-generating monitoring equipment, in particular to a self-generating device and monitoring equipment for dynamic capacity increase of a power transmission line. The self-generating device comprises a mounting main body, a vertical rod, a spoiler, a special-shaped housing and a generating module; the vertical rod is vertically arranged on the mounting main body; the spoiler is arranged in the vertical direction, and the spoiler is connected with the special-shaped cover shell through the vertical rod. The special-shaped housing is rotationally arranged on the mounting main body, and a ventilation channel arranged in the length direction of the spoiler is formed in the special-shaped housing; the power generation module is arranged in the ventilation channel, and the power generation module can generate power under the action of wind power. The spoiler rotates under the action of wind power and drives the special-shaped housing to rotate through the vertical rod, so that the power generation module in the ventilation channel faces the wind direction all the time, the power generation efficiency of the power generation module is effectively improved, and the power supply efficiency of the self-power-generation device is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of self-generating power monitoring equipment, and in particular to a self-generating device and a monitoring device for dynamic capacity expansion of transmission lines. Background Technology

[0002] Dynamic capacity expansion online monitoring of transmission lines involves directly installing online monitoring devices (hereinafter referred to as monitoring devices) for conductor current, temperature, and environmental parameters on the transmission conductors that need to be monitored. The essence of dynamic capacity expansion technology is to install online monitoring devices on the transmission line to monitor conductor conditions (conductor temperature, tension, sag, etc.) and meteorological conditions (ambient temperature, sunshine, wind speed, etc.). Without exceeding the current technical specifications (conductor temperature limit of 70℃), the maximum allowable current carrying capacity of the conductor is calculated based on relevant mathematical models. When monitoring meteorological conditions, the monitoring equipment needs to be installed on the tower for fixed-point area monitoring.

[0003] Currently, due to the high cost of laying cables, the monitoring equipment and signal transmission components on the towers are mainly powered by lithium batteries. Solar power is greatly affected by sunlight, and the power generation efficiency will decrease after the solar panels are covered by dust. Both lithium battery power and solar power require high-frequency maintenance and cleaning. In addition, the charging efficiency of solar power is low when there is a lot of fog in the mountains.

[0004] Therefore, it is necessary to provide a new self-generating device and a monitoring device for dynamic capacity expansion of transmission lines to solve the above-mentioned technical problems. Utility Model Content

[0005] The main purpose of this utility model is to provide a self-generating device and a monitoring device for dynamic capacity expansion of transmission lines, which aims to solve the problem of low power generation efficiency of existing monitoring devices.

[0006] To achieve the above objectives, the present invention proposes a self-generating power device, comprising an installation body, a pole, a spoiler, a shaped housing, and a power generation module; the pole is vertically mounted on the installation body; the spoiler is vertically mounted and connected to the shaped housing via the pole; the shaped housing is rotatably mounted on the installation body, and a ventilation channel is formed within the shaped housing along the length of the spoiler; the power generation module is located within the ventilation channel and is capable of generating electricity under wind power.

[0007] Optionally, the power generation module includes a mounting frame, a generator, and an impeller; the mounting frame is disposed within the ventilation channel; the generator is disposed on the mounting frame; the impeller is connected to the upper shaft of the generator, the impeller is positioned facing the opening of the ventilation channel, and the impeller can rotate under the action of wind to drive the generator to generate electricity.

[0008] Optionally, the power generation module further includes a conical block, which is disposed on the side of the impeller away from the generator, and the conical block is coaxially disposed with the rotating shaft of the generator, with the tapered end of the conical block disposed away from the impeller.

[0009] Optionally, the irregularly shaped housing includes a mounting section and horn sections communicating with both ends of the mounting section, the horn sections being gradually widened in a direction away from the mounting section; the mounting bracket is vertically disposed within the mounting section.

[0010] Optionally, the mounting body includes a base, a conical cover, and support rods. The base is provided with a rotating bearing, and the irregularly shaped cover is rotatably mounted on the base via the rotating bearing. The conical cover is connected to the base via at least three support rods. The upright passes through the conical cover and is connected to a spoiler. An installation space is formed between the conical cover and the base, and both the irregularly shaped cover and the power generation module are disposed within the installation space.

[0011] Optionally, the self-generating device further includes a battery, a rotating conductive module, and a wiring module. The battery is connected to the base. The rotating conductive module includes a mounting sleeve and a double-layer rigid conductor. The irregularly shaped cover is rotatably mounted on the rotating bearing via the mounting sleeve. The double-layer rigid conductor passes through the mounting sleeve and is rotatably connected to the wiring module. The generator is electrically connected to the wiring module via the double-layer rigid conductor. The wiring module is electrically connected to the battery.

[0012] Optionally, the double-layer rigid conductor includes a rigid inner tube, a rigid outer tube, and an insulating filling layer. The rigid outer tube is sleeved over the rigid inner tube, and the rigid outer tube and the rigid inner tube are electrically connected to the generator via conductors. The insulating filling layer is disposed between the rigid inner tube and the rigid outer tube.

[0013] The wiring module includes a housing, a first elastic spring, and a second elastic spring. The housing is disposed on the top of the battery. A first groove and a second groove are formed coaxially inside the housing. The first groove is located on the outer periphery of the second groove. The rigid outer tube and the rigid inner tube extend into the first groove and the second groove, respectively.

[0014] The inner wall of the first groove away from the center is provided with a plurality of first elastic springs arranged radially along the center, and the plurality of first elastic springs are circumferentially distributed along the center, and the first elastic springs are in contact with the rigid outer tube; the inner wall of the second groove near the center is provided with a plurality of second elastic springs arranged radially along the center, and the plurality of second elastic springs are circumferentially distributed along the center, and the second elastic springs are in contact with the rigid inner tube.

[0015] In addition, this utility model also provides a monitoring device for dynamic capacity expansion of transmission lines, used to acquire meteorological signals in the area where the transmission line is located. The transmission line is installed on a tower. The monitoring device for dynamic capacity expansion of transmission lines includes a signal acquisition device, a communication device, and a self-generating device as described in any of the above. The signal acquisition device is installed on the tower and is used to acquire meteorological signals. The communication device is installed on the ground and is electrically connected to the signal acquisition device. The self-generating device is installed on both the signal acquisition device and the communication device.

[0016] Optionally, the signal acquisition device includes a meteorological sensing module and a first communication module. The meteorological sensing module is used to acquire meteorological signals, and the meteorological sensing module is electrically connected to the first communication module.

[0017] The communication device includes a second communication module, a Beidou communication module, and a control module. The second communication module and the Beidou communication module are both electrically connected to the control module. The second communication module can receive several sets of meteorological signals sent by the first communication module and store them in the storage unit within the control module. The control module sends the stored meteorological signals to the control center periodically through the Beidou communication module.

[0018] In this utility model, the power generation module can generate electricity under the action of wind. The spoiler rotates under the action of wind and drives the irregularly shaped cover to rotate through the upright, so that the power generation module in the ventilation channel always faces the wind direction, which effectively improves the power generation efficiency of the power generation module and thus ensures the power supply efficiency of the self-generating device. Attached Figure Description

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in 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 only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the self-generating device in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the wiring module in an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the monitoring equipment for dynamic capacity expansion of transmission lines in this embodiment of the present invention.

[0023] Explanation of icon numbers:

[0024] 1. Tower, 2. Transmission line, 3. Signal acquisition device, 4. Communication device, 5. Self-generating device, 5.1. Main installation body, 5.1.1. Base, 5.1.2. Rotating bearing, 5.1.3. Conical cover, 5.1.4. Support rod, 5.1.5. Installation space, 5.1.6. Limiting ring, 5.2. Upright pole, 5.3. Spoiler, 5.4. Irregularly shaped cover, 5.4.1. Installation section, 5.4.2. Horn section, 5.5. Generating module, 5 5.1 Mounting bracket, 5.5.2 Generator, 5.5.3 Impeller, 5.5.4 Conical block, 5.6 Battery, 5.7 Rotating conductive module, 5.7.1 Mounting sleeve, 5.7.2 Double-layer rigid conductor, 5.7.3 Retaining ring, 5.8 Wiring module, 5.8.1 Housing, A1 First groove, A2 Second groove, 5.8.2 First elastic spring, 5.8.3 Second elastic spring, 5.8.4 Retaining ring.

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0027] This utility model proposes a self-generating device and a monitoring device for dynamic capacity expansion of transmission lines, aiming to solve the problem of low power generation efficiency of existing monitoring devices.

[0028] Example 1

[0029] like Figure 1 As shown, this embodiment provides a self-generating device 5, which includes a mounting body 5.1, a pole 5.2, a spoiler 5.3, a shaped housing 5.4, and a power generation module 5.5. The pole 5.2 is vertically mounted on the mounting body 5.1. The spoiler 5.3 is vertically mounted and connected to the shaped housing 5.4 via the pole 5.2. The shaped housing 5.4 is rotatably mounted on the mounting body 5.1, and a ventilation channel is formed within the shaped housing 5.4 along the length of the spoiler 5.3. The power generation module 5.5 is located within the ventilation channel and can generate electricity under wind power. In practical applications, the power generation module 5.5 generates electricity under wind power. The spoiler 5.3 rotates under wind power and drives the shaped housing 5.4 to rotate via the pole 5.2, ensuring that the power generation module 5.5 in the ventilation channel always faces the wind direction, effectively improving the power generation efficiency of the power generation module 5.5 and thus ensuring the power supply efficiency of the self-generating device 5.

[0030] The power generation module 5.5 includes a mounting bracket 5.5.1, a generator 5.5.2, and an impeller 5.5.3. The mounting bracket 5.5.1 is located within the ventilation channel; the generator 5.5.2 is mounted on the mounting bracket 5.5.1; the impeller 5.5.3 is connected to the shaft of the generator 5.5.2, and the impeller 5.5.3 is positioned directly opposite the opening of the ventilation channel. The impeller 5.5.3 can rotate under wind power to drive the generator 5.5.2 to generate electricity. The placement of the impeller 5.5.3 directly opposite the opening of the ventilation channel ensures sufficient contact area between the impeller 5.5.3 and the airflow, improving wind power conversion efficiency. Under the action of wind, the airflow passes through the impeller 5.5.3 within the irregularly shaped casing 5.4, driving the impeller 5.5.3 and the shaft of the generator 5.5.2 to rotate, thus realizing the power generation function of the generator 5.5.2.

[0031] Specifically, the power generation module 5.5 also includes a conical block 5.5.4, which is located on the side of the impeller 5.5.3 away from the generator 5.5.2. The conical block 5.5.4 is coaxially arranged with the shaft of the generator 5.5.2, and the tapered end of the conical block 5.5.4 is located away from the impeller 5.5.3. The airflow is guided by the conical block 5.5.4 to avoid flowing towards the impeller 5.5.3. The airflow is effectively reduced by the conical block 5.5.4, which guides the airflow through the impeller 5.5.3 and allows more airflow to contact the blades of the impeller 5.5.3, thereby improving the power generation efficiency of the generator 5.5.2.

[0032] Furthermore, the irregularly shaped housing 5.4 includes an installation section 5.4.1 and a horn section 5.4.2 connecting both ends of the installation section 5.4.1. The horn section 5.4.2 gradually widens in the direction away from the installation section 5.4.1. The mounting bracket 5.5.1 is vertically installed inside the installation section 5.4.1. The narrow end of the horn section 5.4.2 is connected to both ends of the installation section 5.4.1. That is, when the airflow enters the installation section 5.4.1 through the horn section 5.4.2, the flow area decreases and the airflow accelerates. The generator 5.5.2 is installed in the installation section 5.4.1 through the mounting bracket 5.5.1. When the irregularly shaped housing 5.4 rotates to be in the same direction as the wind, the generator 5.5.2 is located at the end of the installation section 5.4.1 away from the air inlet, which further improves the power generation efficiency. It can also generate low-power electricity when the wind is weak, instead of stopping and not generating electricity, so as to ensure the power supply function of the self-generating device 5.

[0033] Furthermore, the mounting body 5.1 includes a base 5.1.1, a conical cover 5.1.3, and a support rod 5.1.4. The base 5.1.1 is equipped with a rotating bearing 5.1.2, and the irregularly shaped cover 5.4 is rotatably mounted on the base 5.1.1 via the rotating bearing 5.1.2. The conical cover 5.1.3 is connected to the base 5.1.1 via at least three support rods 5.1.4. The upright rod 5.2 passes through the conical cover 5.1.3 and is connected to the spoiler 5.3. An installation space 5.1.5 is formed between the conical cover 5.1.3 and the base 5.1.1, and the irregularly shaped cover 5.4 and the power generation module 5.5 are both located within the installation space 5.1.5. The conical cover 5.1.3 is equipped with a limiting ring 5.1.6. The upright 5.2 passes through the conical cover 5.1.3 and rotates with the limiting ring 5.1.6. The conical cover 5.1.3 can guide the airflow at the top of the self-generating device 5, so that the airflow flows to the spoiler 5.3, thereby driving the spoiler 5.3 to rotate. When the wind force is small, it can guide the surrounding airflow to the spoiler 5.3 as much as possible to ensure the power generation function.

[0034] In addition, the self-generating device 5 also includes a battery 5.6, a rotating conductive module 5.7, and a wiring module 5.8. The battery 5.6 is connected to the base 5.1.1. The rotating conductive module 5.7 includes a mounting sleeve 5.7.1 and a double-layer rigid conductor 5.7.2. The irregularly shaped cover 5.4 is rotatably mounted on the rotating bearing 5.1.2 through the mounting sleeve 5.7.1. The double-layer rigid conductor 5.7.2 passes through the mounting sleeve 5.7.1 and is rotatably connected to the wiring module 5.8. The generator 5.5.2 is electrically connected to the wiring module 5.8 through the double-layer rigid conductor 5.7.2. The wiring module 5.8 is electrically connected to the battery 5.6. The top of the mounting sleeve 5.7.1 is equipped with a fixing ring 5.7.3. The irregularly shaped housing 5.4 is fixedly connected to the mounting sleeve 5.7.1 through the fixing ring 5.7.3. The mounting sleeve 5.7.1 is rotatably mounted on the rotating bearing 5.1.2. The bottom of the double-layer rigid conductor 5.7.2 is rotatably connected to the wiring module 5.8, which enables the output of electrical energy even when the irregularly shaped housing 5.4 swings or rotates with the wind. When the wind is strong, in addition to providing normal power to external devices, the self-generating device 5 can also store excess battery power in the storage battery 5.6. Specifically, the generator 5.5.2 transmits electrical energy to the double-layer rigid conductor 5.7.2, and then to the storage battery 5.6 through the wiring module 5.8, to ensure normal power supply when the wind is weak or in windless weather.

[0035] See also Figure 2In this embodiment, the double-layer rigid conductor 5.7.2 includes a rigid inner tube, a rigid outer tube, and an insulating filling layer. The rigid outer tube is sleeved outside the rigid inner tube, and the rigid outer tube and the rigid inner tube are electrically connected to the generator 5.5.2 via conductors. The insulating filling layer is disposed between the rigid inner tube and the rigid outer tube. The wiring module 5.8 includes a housing 5.8.1, a first elastic spring 5.8.2, and a second elastic spring 5.8.3. The housing 5.8.1 is disposed on the top of the battery 5.6, and a first groove A1 and a second groove A2 are formed coaxially inside the housing 5.8.1. The first groove A1 is located at the second... The outer periphery of groove A2 has a rigid outer tube and a rigid inner tube extending into the first groove A1 and the second groove A2, respectively. The inner wall of the first groove A1 away from the center is provided with a plurality of first elastic springs 5.8.2 arranged radially along the center, and the plurality of first elastic springs 5.8.2 are circumferentially distributed along the center, and the first elastic springs 5.8.2 are in contact with the rigid outer tube. The inner wall of the second groove A2 near the center is provided with a plurality of second elastic springs 5.8.3 arranged radially along the center, and the plurality of second elastic springs 5.8.3 are circumferentially distributed along the center, and the second elastic springs 5.8.3 are in contact with the rigid inner tube. The first elastic spring 5.8.2 and the second elastic spring 5.8.3 are connected to the input terminal of the storage battery 5.6 through the overload protection module, and the storage battery 5.6 supplies power to the external device. Through the double-layered rigid tubular wire, the bottom of the inner and outer rigid tubes respectively contact the inner and outer rings of the second elastic spring 5.8.3 and the first elastic spring 5.8.2, so that the electrical energy generated by the generator 5.5.2 inside the irregular housing 5.4 is stored in the storage battery 5.6. Without interfering with the rotation of the irregular housing 5.4, it can also provide bottom support and limit for its rotation, and avoid the inconvenience of energy transmission caused by rotation, so as to ensure continuous and stable conductivity.

[0036] In another example of this embodiment, the housing 5.8.1 is provided with a circular groove, and the wiring module 5.8 further includes a retaining ring 5.8.4, which is disposed in the circular groove and divides the circular groove into two coaxially arranged first groove A1 and second groove A2.

[0037] In this embodiment, the spoiler 5.3 includes a large end and a small end connected together. The small end is tapered away from the large end, and the upright 5.2 is connected to the junction of the large end and the small end. When the wind blows the spoiler 5.3, the large end of the spoiler 5.3 has a large contact area with the airflow. Under the action of the wind, it rotates to the same position as the wind direction and drives the irregularly shaped cover 5.4 to rotate around the rotating bearing 5.1.2 through the upright 5.2. The orientation of the irregularly shaped cover 5.4 is consistent with the length direction of the spoiler 5.3. When the large end of the spoiler 5.3 is consistent with the wind direction, the airflow enters from the side of the irregularly shaped cover 5.4 near the small end of the spoiler 5.3 and flows out from the side near the large end of the spoiler 5.3, ensuring power generation efficiency.

[0038] Example 2

[0039] See also Figure 3 This embodiment provides a monitoring device for dynamic capacity expansion of a transmission line 2, used to acquire meteorological signals of the area where the transmission line 2 is located. The transmission line 2 is installed on a tower 1. The monitoring device for dynamic capacity expansion of the transmission line 2 includes a signal acquisition device 3, a communication device 4, and a self-generating device 5 as described above. The signal acquisition device 3 is installed on the tower 1 and is used to collect meteorological signals. The communication device 4 is installed on the ground and is electrically connected to the signal acquisition device 3. Both the signal acquisition device 3 and the communication device 4 are equipped with self-generating devices 5. The communication device 4 can transmit the meteorological signals collected by the signal acquisition device 3 to the control center. The battery 5.6 in the self-generating device 5 can charge and store electricity for the signal acquisition device 3 and the communication device 4 and provide continuous power for online monitoring of dynamic capacity expansion of the transmission line 2.

[0040] The signal acquisition device 3 includes a meteorological sensing module and a first communication module. The meteorological sensing module is used to collect meteorological signals and is electrically connected to the first communication module. The communication device 4 includes a second communication module, a Beidou communication module, and a control module. Both the second communication module and the Beidou communication module are electrically connected to the control module. The second communication module can receive several sets of meteorological signals sent by the first communication module and store them in the storage unit within the control module. The control module sends the stored meteorological signals to the control center periodically through the Beidou communication module. Multiple signal acquisition devices 3 are deployed in the area where the transmission line 2 is located. The meteorological sensing module includes a temperature and humidity sensor, a solar radiation intensity meter, a wind speed and direction sensor, and a rain gauge, which are used to collect temperature and humidity signals, solar radiation intensity signals, wind speed and direction signals, and rainfall signals of the area installed on the tower 1, respectively. The collected meteorological signals are sent to the second communication module of the communication device 4 through the first communication module in the signal acquisition device 3. The second communication module receives signals from several signal acquisition devices 3 within the area and sends them to the control center periodically through the control module.

[0041] Since the monitoring equipment for dynamic capacity expansion of transmission line 2 includes the self-generating device 5 as described above, it possesses all the beneficial effects of the self-generating device 5, which will not be elaborated further here. The above description is merely a preferred embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model, utilizing the description and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A self-generating power device, characterized in that, The system includes an installation body (5.1), a pole (5.2), a spoiler (5.3), a shaped housing (5.4), and a power generation module (5.5). The pole (5.2) is vertically mounted on the installation body (5.1). The spoiler (5.3) is vertically mounted and connected to the shaped housing (5.4) via the pole (5.2). The shaped housing (5.4) is rotatably mounted on the installation body (5.1), and a ventilation channel is formed inside the shaped housing (5.4) along the length of the spoiler (5.3). The power generation module (5.5) is located within the ventilation channel and is capable of generating electricity under wind power.

2. The self-generating device as described in claim 1, characterized in that, The power generation module (5.5) includes a mounting frame (5.5.1), a generator (5.5.2), and an impeller (5.5.3); the mounting frame (5.5.1) is disposed within the ventilation channel; the generator (5.5.2) is disposed on the mounting frame (5.5.1); the impeller (5.5.3) is connected to the rotating shaft of the generator (5.5.2), the impeller (5.5.3) is positioned facing the opening of the ventilation channel, and the impeller (5.5.3) can rotate under the action of wind to drive the generator (5.5.2) to generate electricity.

3. The self-generating device as described in claim 2, characterized in that, The power generation module (5.5) further includes a conical block (5.5.4), which is disposed on the side of the impeller (5.5.3) away from the generator (5.5.2). The conical block (5.5.4) is coaxially disposed with the rotating shaft of the generator (5.5.2), and the tapered end of the conical block (5.5.4) is disposed away from the impeller (5.5.3).

4. The self-generating device as described in claim 3, characterized in that, The irregularly shaped cover (5.4) includes a mounting section (5.4.1) and a horn section (5.4.2) connecting both ends of the mounting section (5.4.1). The horn section (5.4.2) is gradually widened in a direction away from the mounting section (5.4.1). The mounting bracket (5.5.1) is vertically arranged inside the mounting section (5.4.1).

5. The self-generating device as described in any one of claims 2 to 4, characterized in that, The mounting body (5.1) includes a base (5.1.1), a conical cover (5.1.3), and support rods (5.1.4). The base (5.1.1) is provided with a rotating bearing (5.1.2), and the irregularly shaped cover (5.4) is rotatably mounted on the base (5.1.1) via the rotating bearing (5.1.2). The conical cover (5.1.3) is connected to the base (5.1.1) via at least three support rods (5.1.4). The upright (5.2) passes through the conical cover (5.1.3) and is connected to the spoiler (5.3). An installation space (5.1.5) is formed between the conical cover (5.1.3) and the base (5.1.1), and the irregularly shaped cover (5.4) and the power generation module (5.5) are both disposed within the installation space (5.1.5).

6. The self-generating device as described in claim 5, characterized in that, The self-generating device further includes a battery (5.6), a rotating conductive module (5.7), and a wiring module (5.8). The battery (5.6) is connected to the base (5.1.1). The rotating conductive module (5.7) includes a mounting sleeve (5.7.1) and a double-layer rigid conductor (5.7.2). The irregularly shaped cover (5.4) is rotatably mounted on the rotating bearing (5.1.2) through the mounting sleeve (5.7.1). The double-layer rigid conductor (5.7.2) passes through the mounting sleeve (5.7.1) and is rotatably connected to the wiring module (5.8). The generator (5.5.2) is electrically connected to the wiring module (5.8) through the double-layer rigid conductor (5.7.2). The wiring module (5.8) is electrically connected to the battery (5.6).

7. The self-generating device as described in claim 6, characterized in that, The double-layer rigid conductor (5.7.2) includes a rigid inner tube, a rigid outer tube, and an insulating filling layer. The rigid outer tube is sleeved over the rigid inner tube. The rigid outer tube and the rigid inner tube are electrically connected to the generator (5.5.2) through conductors. The insulating filling layer is disposed between the rigid inner tube and the rigid outer tube. The wiring module (5.8) includes a housing (5.8.1), a first elastic spring (5.8.2), and a second elastic spring (5.8.3). The housing (5.8.1) is disposed on the top of the battery (5.6). A first groove (A1) and a second groove (A2) are formed coaxially inside the housing (5.8.1). The first groove (A1) is located on the outer periphery of the second groove (A2). The rigid outer tube and the rigid inner tube extend into the first groove (A1) and the second groove (A2), respectively. The inner wall of the first groove (A1) away from the center is provided with a plurality of first elastic springs (5.8.2) arranged radially along the center, and the plurality of first elastic springs (5.8.2) are circumferentially distributed along the center, and the first elastic springs (5.8.2) are in contact with the rigid outer tube; the inner wall of the second groove (A2) near the center is provided with a plurality of second elastic springs (5.8.3) arranged radially along the center, and the plurality of second elastic springs (5.8.3) are circumferentially distributed along the center, and the second elastic springs (5.8.3) are in contact with the rigid inner tube.

8. The self-generating device according to any one of claims 1 to 4, characterized in that, The spoiler (5.3) includes a large end and a small end connected together, the small end being tapered away from the large end, and the upright (5.2) is connected to the connection between the large end and the small end.

9. A monitoring device for dynamic capacity expansion of a transmission line (2), used to acquire meteorological signals of the area where the transmission line (2) is located, wherein the transmission line (2) is installed on a tower (1), characterized in that, The monitoring equipment for dynamic capacity expansion of the transmission line (2) includes a signal acquisition device (3), a communication device (4), and a self-generating device as described in any one of claims 1 to 8. The signal acquisition device (3) is installed on the tower (1) and is used to acquire meteorological signals. The communication device (4) is installed on the ground and is electrically connected to the signal acquisition device (3). The self-generating device is installed on both the signal acquisition device (3) and the communication device (4).

10. The monitoring equipment for dynamic capacity expansion of transmission lines (2) as described in claim 9, characterized in that, The signal acquisition device (3) includes a meteorological sensing module and a first communication module. The meteorological sensing module is used to acquire meteorological signals, and the meteorological sensing module is electrically connected to the first communication module. The communication device (4) includes a second communication module, a Beidou communication module and a control module. The second communication module and the Beidou communication module are both electrically connected to the control module. The second communication module can receive several sets of meteorological signals sent by the first communication module and store them in the storage unit in the control module. The control module sends the stored meteorological signals to the control center at regular intervals through the Beidou communication module.

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