CN112994253B - Power taking device for power transmission line - Google Patents
Power taking device for power transmission line Download PDFInfo
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- CN112994253B CN112994253B CN202110196840.XA CN202110196840A CN112994253B CN 112994253 B CN112994253 B CN 112994253B CN 202110196840 A CN202110196840 A CN 202110196840A CN 112994253 B CN112994253 B CN 112994253B
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- support frame
- transmission line
- power transmission
- power
- coil
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
Abstract
The application relates to a power transmission line power taking device. The device comprises: coil pack, elastic component and mounting, the mounting cover is located on the transmission line, and coil pack passes through the elastic component and is connected with the mounting. Coil pack among the device produces the pressure the same with the direction of cutting magnetic induction line around the power transmission line to the elastic component under the effect of external force, and the elastic component can stretch out and draw back in the direction of cutting magnetic induction line around the power transmission line under the effect of this pressure to drive coil pack and can follow the direction reciprocating motion of cutting magnetic induction line around the power transmission line, consequently can produce induced current, and output induced current is for the external equipment power supply on the power transmission line. The device has a simple structure, can be directly erected on a high-voltage direct-current transmission line, and supplies power to external equipment by using the high-voltage direct-current transmission line, so that power guarantee is provided for the external equipment to perform line monitoring continuously in real time, and the reliability of the operation of a power system is improved to a certain extent.
Description
Technical Field
The application relates to the technical field of high-voltage power equipment, in particular to a power taking device for a power transmission line.
Background
Some external devices are provided in the power transmission system, such as: the external devices are used for monitoring the operation condition of the power transmission line accurately in real time, so that faults of the power system can be found and processed conveniently in time, the operation reliability of the power system is improved, and the transmission quality is guaranteed.
At present, no scheme can be used for supplying power to external equipment by taking power from a high-voltage direct-current power transmission line, and the equipment can only run by depending on power supply supporting equipment of the equipment. Due to the fact that the power supply capacity of the power supply of the external equipment is limited, the external equipment is frequently powered off, and therefore the line cannot be monitored continuously in real time.
Disclosure of Invention
The embodiment of the application provides a power transmission line gets electric installation can continuously supply power for the peripheral equipment on the transmission line, provides the electric power guarantee for the peripheral equipment carries out line monitoring in real time, continuously.
The utility model provides a power transmission line gets electric installation, the device includes: the coil assembly is connected with the fixing piece through the elastic piece;
the coil assembly is used for generating pressure on the elastic part under the action of external force, and the direction of the pressure is the same as that of the magnetic induction line around the cutting power transmission line;
the elastic piece is used for stretching along the direction of the magnetic induction line around the cutting power transmission line under the action of pressure so as to drive the coil assembly to reciprocate along the direction of the magnetic induction line around the cutting power transmission line;
the coil assembly is also used for generating induction current during the reciprocating motion and outputting the induction current.
In one embodiment, the coil assembly: comprises a supporting frame and an induction coil wound on the supporting frame.
In one embodiment, the support frame includes: the first end of the first support frame is connected with the first end of the second support frame through the third support frame, the second end of the first support frame is connected with the second end of the second support frame through the fourth support frame, the first support frame is arranged in parallel with the second support frame, the third support frame is arranged in parallel with the fourth support frame, the third support frame is perpendicular to the first support frame and the second support frame, and the fourth support frame is perpendicular to the first support frame and the second support frame.
In one embodiment, the induction coil is attached to the first surface of the support frame; the first surface is a surface of the coil assembly away from the fixing member.
In one embodiment, the first support frame is provided with an elastic member near the surface of the power line, and/or the second support frame is provided with an elastic member near the surface of the power line.
In one embodiment, the fixing member includes two sub-fixing members, each sub-fixing member includes a base and a sleeve, an outer wall of the sleeve is fixedly connected to the elastic member, a power transmission line is sleeved in the sleeve, and the base is slidably connected to the coil assembly.
In one embodiment, the base is provided with a first accommodating space, a sliding assembly is arranged in the first accommodating space, the sliding assembly includes a first end portion and a second end portion, the first end portion of the sliding assembly extends out of the first accommodating space, the second end portion of the sliding assembly extends to the bottom of the first accommodating space, and the base is slidably connected with the coil assembly through the sliding assembly.
In one embodiment, the coil assembly further comprises a connecting portion matched with the sliding assembly and used for movably connecting the fixed member and the coil assembly.
In one embodiment, the connecting portion may be a connecting groove or a connecting baffle.
In one embodiment, the apparatus further comprises a rectifying component for converting the induced current into a direct current for input to a load of the transmission line.
The embodiment of the application provides a power transmission line gets electric installation, and the device includes: the coil component, elastic component and mounting, the mounting cover is located on the transmission line, and the coil component passes through the elastic component and is connected with the mounting. The coil assembly in the device generates pressure in the same direction as that of the magnetic induction line around the cutting power transmission line to the elastic part under the action of external force, and the elastic part can stretch in the direction of the magnetic induction line around the cutting power transmission line under the action of the pressure, so that the coil assembly is driven to reciprocate in the direction of the magnetic induction line around the cutting power transmission line, induction current can be generated, and the induction current is output to supply power for external equipment on the power transmission line. The device has a simple structure, can be directly erected on a high-voltage direct-current transmission line, and supplies power to external equipment by using the high-voltage direct-current transmission line, so that power guarantee is provided for the external equipment to perform line monitoring continuously in real time, and the reliability of the operation of a power system is improved to a certain extent.
Drawings
FIG. 1 is a diagram of an embodiment of a power transmission system;
fig. 2 is a block diagram of a power line taking device in one embodiment;
FIG. 3 is a block diagram of a coil assembly in one embodiment;
FIG. 4 is a block diagram of a coil assembly in another embodiment;
FIG. 5 is a block diagram of the structure of a first support bracket and a second support bracket according to one embodiment;
FIG. 6 is a block diagram of the structure of a mount in one embodiment;
fig. 7 is a partial structure block diagram of a power line electricity-taking device in an embodiment.
Description of the drawings:
1. a coil assembly; 11. An induction coil; 12. A support frame;
13. a first support frame; 131. A first support surface; 132. A second support surface;
133. a third support surface; 134. A third connecting part; 135. A fourth connecting portion;
14. a second support frame; 141. A fourth supporting surface; 142. A fifth support surface;
143. a sixth supporting surface; 15. A third support frame; 16. A fourth support frame;
2. an elastic member; 21. A first elastic member; 22. A second elastic member;
23. a third elastic member; 24. A fourth elastic member; 3. A fixing member;
31. a first sub-mount; 311. A first base; 312. A first sleeve;
313. a first accommodating subspace; 314. A first opening and closing structure; 32. A second sub-mount;
321. a second base; 322. A second sleeve; 323. A second accommodating sub-space;
324. a second open-close structure; 4. A sliding assembly; 41. A first end portion;
42. a second end portion.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
As shown in fig. 1, the power transmission system includes a power transmission line, a power transmission line support frame, and an external device disposed on the power transmission line, where the power transmission line and the external device are both erected on the power transmission line support frame, and the external device may be, for example, a wireless communication device, a sensor, and other devices. The external equipment is used for accurately monitoring the operation condition of the power transmission line in real time, and is convenient for finding and processing faults of the power system in time so as to improve the operation reliability of the power system and ensure the transmission quality.
However, at present, the operation of the external device only depends on the power supply of the device itself for support, and because the power supply capability of the device itself is limited, the external device often cannot be used normally due to power failure, so that the external device cannot monitor the line continuously in real time.
The embodiment of the application provides a power taking device for a power transmission line, which can directly take power from a direct-current power transmission line to supply power for a peripheral. As shown in fig. 2, the device may be erected on a high voltage direct current transmission line. Specifically, the device includes: coil pack 1, elastic component 2 and mounting 3, mounting 3 cover are located on the transmission line, and coil pack 1 is connected with mounting 3 through elastic component 2.
The coil assembly 1 is used for swinging along the direction of horizontally cutting the magnetic induction lines around the power transmission line under the action of external force and generating pressure on the elastic part, and the direction of the pressure is the same as the direction of horizontally cutting the magnetic induction lines around the power transmission line;
the elastic part 2 is used for stretching along the direction of the magnetic induction line around the horizontal cutting power transmission line under the action of the pressure so as to drive the coil assembly 1 to reciprocate along the direction of the magnetic induction line around the horizontal cutting power transmission line;
the coil block 1 is also configured to generate an induced current during the reciprocating motion and output the induced current.
Illustratively, the coil assembly 1 may be a closed structure formed by winding an induction coil, the wound induction coil forms a plurality of faces, and the faces are connected with each other in a vertical connection manner, a horizontal connection manner or an angle connection manner, and the angle range can be any value between 0 and 90 degrees. The front view of the coil component 1 can be a square structure, a U-shaped structure and the like. The rear view of the coil assembly 1 may be the same as the front view; the left view of the coil component 1 can be a square structure, an Jiong structure and the like, and the left view of the coil component 1 can be the same as the right view; the top view of the coil block 1 may be a square structure or the like. Here, the shape of the coil block 1 is not limited.
The elastic member 2 is a component capable of generating elastic deformation under the action of an external force, and rapidly recovering to an original state and size when the external force disappears or becomes small, and is used for connecting the coil assembly 1 and the fixing member 3, the elastic member 2 may be a spring, for example, the number of the elastic members 2 is at least four, and as shown in fig. 1, the elastic member 2 may include a first elastic member 21, a second elastic member 22, a third elastic member 23 and a fourth elastic member 24, and the elastic member 2 may include a plurality of elastic members 2, and the shape, the material and the like of the plurality of elastic members 2 are the same.
The fixing 3 may comprise one or more sub-fixing. The sub-fixing piece can be an integrated piece or a fixing piece, the sub-fixing piece is respectively connected with the power transmission line and the coil assembly, and the sub-fixing piece can be erected on the power transmission line in a mode of being sleeved on the power transmission line; the coil component can be connected with the coil component in a sliding mode through components such as pulleys, sliding blocks and a conveying belt mechanism, and can also be fixedly connected with the coil component through the elastic part 2. The pulley, the sliding block and the conveyor belt mechanism at least comprise one, and therefore the connection mode is not limited in the application.
The sub-fixing piece can be a structure with a hollow interior, and the hollow interior can be in a shape of a cuboid, a cube, a cylinder, a prism and the like. The non-hollow portion may be square, rectangular, circular, regular polygonal, etc. in plan view. The non-hollow portion may be connected to the hollow portion by welding, fastening, snapping, or the like.
The outer side wall of the hollow part can further comprise an opening and closing part, and the opening and closing structure can realize the opening and closing of the side wall of the hollow part through clamping, bolt connection, magnetic attraction and other modes, so that the power transmission line can enter the cavity of the hollow part through the opening and closing structure, and the sub-fixing part is connected with the power transmission line through a mode of sleeving the sub-fixing part on the power transmission line. One or more power lines can be accommodated in the cavity of the hollow part. Of course, the hollow portion may be connected to the power line in other forms and manners, and is not limited herein. The outer side wall of the hollow part can further comprise a connecting part, the connecting part is used for fixedly connecting the fixing part 3 with the coil assembly 1 through the elastic part 2, wherein the elastic part 2 and the fixing part 3 as well as the elastic part 2 and the coil assembly 1 can be fixedly connected in a welding mode, a riveting mode, a threaded connection mode, a pin connection mode, a connecting mode, a locking connection mode, an inserting connection mode, a bolt connection mode, a screw connection mode, a fastener-assembly connection mode and the like, and the connecting part is not limited in the application.
The coil assembly 1 generates a pressure on the elastic member 2 by the wind force, the direction of the pressure is the same as the direction of the magnetic induction lines around the cut power transmission line, and the pressure can extend the elastic member 2 and also can shorten the elastic member 2. When the external force applied to the coil assembly 1 is reduced or eliminated, the pressure applied to the elastic element 2 is reduced or eliminated, and the elastic force on the elastic element 2 is slowly reduced until it is reduced to zero, so that the elastic element 2 can return to a state close to its original state and size. Because the fixed part 3 is connected with the coil assembly 1 through the elastic part 2, in the process that the elastic part 2 is restored to be close to the original state and size, the elastic force of the elastic part 2 can pull the coil assembly 1 to reciprocate along the direction of cutting the magnetic induction lines around the power transmission line under the assistance of the fixed part 3, and the magnetic induction lines around the power transmission line are continuously cut, so that continuous induction current is generated to supply power to external equipment.
The embodiment of the application provides a power device is got to power transmission line, and the device includes: coil pack, elastic component and mounting, the mounting cover is located on the transmission line, and coil pack passes through the elastic component and is connected with the mounting. Coil pack among the device produces the pressure the same with the direction of cutting magnetic induction line around the power transmission line to the elastic component under the effect of external force, and the elastic component can stretch out and draw back in the direction of cutting magnetic induction line around the power transmission line under the effect of this pressure to drive coil pack and can follow the direction reciprocating motion of cutting magnetic induction line around the power transmission line, consequently can produce induced current, and output induced current is for the external equipment power supply on the power transmission line. The device simple structure can directly erect on high voltage direct current transmission line, utilizes high voltage direct current transmission line to supply power for external equipment to for external equipment carry out line monitoring in real time, continuously and provide electric power guarantee, improved the reliability of electric power system operation to a certain extent.
The embodiment of the present application also provides a possible implementation manner of the coil assembly 1. The coil assembly 1 includes a support frame 12 and an induction coil 11 wound on the support frame 12. Illustratively, as shown in fig. 3, the supporting frame 12 is used to support the induction coil 11, so as to prevent the induction coil 11 from deforming under a large external force, which would affect the movement of the coil assembly 1 for cutting the magnetic induction lines. The structure of the support frame 12 may be completely matched with the induction coil 11, so that the induction coil 11 can be completely laid on the support frame 12; it may also be partially matched so that the induction coil 11 is partially laid on the support frame 12. The wire in the induction coil 11 may be wound tightly or wound with an interval, and the winding manner is not limited in the present application.
The power taking device for the power transmission line, provided by the embodiment of the application, the coil assembly in the power taking device comprises a support frame, an induction coil is wound on the support frame, the support frame supports the induction coil to enable the shape of the coil assembly to be more stable, deformation cannot be easily caused, the coil assembly can further keep a stable shape when reciprocating motion of a magnetic induction line around the cutting power transmission line is carried out, stable induction current is generated, and the quality of the induction current can be further improved.
The embodiment of the present application also provides a possible implementation manner of the above-mentioned support frame 12. The support frame 12 includes: the first end of the first support frame 13 is connected with the first end of the second support frame 14 through the third support frame 15, the second end of the first support frame 13 is connected with the second end of the second support frame 14 through the fourth support frame 16, the first support frame 13 and the second support frame 14 are arranged in parallel, the third support frame 15 and the fourth support frame 16 are arranged in parallel, the third support frame 15 is perpendicular to the first support frame 13 and the second support frame 14, and the fourth support frame 16 is perpendicular to the first support frame 13 and the second support frame 14.
For example, as shown in fig. 4, the first supporting frame 13 and the second supporting frame 14 are both used for connecting with the fixing element 3, and the first supporting frame 13 and the second supporting frame 14 are arranged in parallel. As described above, the first support frame 13 and the second support frame 14 may have a square structure or a Jiong-shaped structure. Based on the description of the shapes of the first support bracket 13 and the second support bracket 14, as shown in fig. 5, the first support bracket 13 includes: a first support surface 131, a second support surface 132 and a third support surface 133; the second supporting surface 132 is disposed parallel to the third supporting surface 133, the first supporting surface 131 is disposed perpendicular to the second supporting surface 132 and the third supporting surface 133, and the second supporting surface 132 is connected to the third supporting surface 133 through the first supporting surface 131. Also, the second stock 14 includes: a fourth supporting surface 141, a fifth supporting surface 142 and a sixth supporting surface 143; the fifth supporting surface 142 is disposed parallel to the sixth supporting surface 143, the fourth supporting surface 141 is disposed perpendicular to the fifth supporting surface 142 and the sixth supporting surface 143, and the fifth supporting surface 142 is connected to the sixth supporting surface 143 through the fourth supporting surface 141. The third supporting frame 15 and the fourth supporting frame 16 may be in a "straight" structure, where a first end of the third supporting frame 15 is connected to one end of the second supporting surface 132, which is far away from the first supporting surface 131, and a second end of the third supporting frame 15 is connected to one end of the third supporting surface 133, which is far away from the first supporting surface 131; a first end of the fourth supporting frame 16 is connected to one end of the fifth supporting surface 142, which is far away from the fourth supporting surface 141, and a second end of the fourth supporting frame 16 is connected to one end of the sixth supporting surface 143, which is far away from the fourth supporting surface 141.
The first support frame 13 and the second support frame 14 are used for connecting with the fixing part 3, and the third support frame 15 and the fourth support frame 16 are used for cutting magnetic induction lines around the power transmission line. The shapes and the positional relationships of the first support frame 13, the second support frame 14, the third support frame 15 and the fourth support frame 16 can be selected otherwise, which is not limited in the embodiment of the present application.
The power taking device for the power transmission line, provided by the embodiment of the application, the support frame in the coil assembly can comprise a plurality of support frames with different shapes, and the induction coil can be better matched with the shape formed by winding so as to provide stable support for the induction coil.
The embodiment of the present application also provides a possible position relationship between the induction coil 11 and the support frame 12. The position relationship is as follows: the induction coil is attached to the first surface of the support frame; the first surface is a surface of the coil assembly far away from the fixing piece.
For example, the induction coil 11 may be wound along the direction of the first support frame 13, the third support frame 15, the second support frame 14, and the fourth support frame 16, or may be wound along the direction of the fourth support frame 16, the first support frame 13, the third support frame, and the second support frame 14, etc. The induction coil 11 may also be wound in one turn or in multiple turns by adhering to the supporting frame 12, which is not limited herein.
The power taking device for the power transmission line, provided by the embodiment of the application, the coil assembly in the power taking device comprises a support frame and an induction coil, the first surface of the induction coil laminating support frame is arranged, the support frame can provide better supporting force for the induction coil due to the position relation, the induction coil is prevented from deforming under the action of external force, magnetic induction lines around the cutting power transmission line are influenced, and the generation of induction currents is further influenced.
The embodiment of the application also provides a possible arrangement mode of the elastic piece. The method comprises the following steps: the first support frame 13 is provided with a resilient member near the surface of the transmission line and/or the second support frame 14 is provided with a resilient member 2 near the surface of the transmission line.
Illustratively, as shown in fig. 1, in the present embodiment, a connecting portion may be provided on a surface of the first supporting frame 13 close to the power line and a surface of the second supporting frame 14 close to the power line, and further, a connecting portion may be provided on an inner wall of the second supporting surface 132 and the third supporting surface 133 of the first supporting frame 13, and the connecting portion is used for connecting the elastic member 2; a connecting portion for connecting the elastic member 2 may be provided on the inner wall of the fifth supporting surface 142 and the sixth supporting surface 143 of the second supporting frame 14. The number of the connecting parts may be one or more, and the application is not limited thereto. The connection between the connection portion and the elastic member 2 may be a welding method, an embedding method, or the like, and is not limited herein.
The power taking device for the power transmission line provided by the embodiment of the application, be provided with elastic part connecting portion in the device on first support frame and the second support frame, so that the one end of elastic part can be connected with first support frame and second support frame, the other end of elastic part is connected with the lateral wall of mounting, thereby can realize being connected of coil pack and mounting, and then make coil pack can be indirectly connected with the power transmission line, provide the prerequisite for the magnetic induction line around the coil pack cutting power transmission line.
The embodiment of the present application also provides a possible implementation manner of the fixing member 3. The fixing part 3 comprises two sub-fixing parts, each sub-fixing part comprises a base and a sleeve, the outer wall of each sleeve is fixedly connected with the elastic part, the sleeve is internally sleeved with a power transmission line, and the bases are connected with the coil assemblies 1 in a sliding mode.
Illustratively, as shown in fig. 6, the fixing member 3 includes two first sub-fixing members 313 and two second sub-fixing members 323, and based on the above description, the first supporting frame 13 is connected with the corresponding first sub-fixing member 313 through the elastic member 2, and the second supporting frame 14 is connected with the corresponding second sub-fixing member 323 through the elastic member 2. Each sub-fixing member 3 includes a base and a sleeve, wherein the base includes: a first base 311 and a second base 321; the sleeve includes: a first sleeve 312 and a second sleeve 322. The base is used for supporting the first supporting surface 131 or the fourth supporting surface 141 to slide on the base. The shape of the base may be a square, a rectangular parallelepiped, a regular prism, etc., as long as the base can slide on the first supporting surface 131 or the fourth supporting surface 141, and the shape of the base is not limited herein. The sleeve is used for the cover to establish the power transmission line, and its inside cavity can be cuboid, square, cylinder, prism etc.. For example, as shown in fig. 6, the outer sidewalls of the first sleeve 312 close to the second supporting surface 132 and the third supporting surface 133 and the outer sidewalls of the second sleeve 322 close to the fifth supporting surface 142 and the sixth supporting surface 143 are further provided with an opening and closing structure, the opening and closing structure includes a first opening and closing structure 314 and a second opening and closing structure 324, the first sleeve 312 enables the power transmission line to enter the inner cavity of the first sleeve 312 by opening the first opening and closing structure 314, so that the first sleeve 312 is sleeved on the power transmission line; the second sleeve 322 makes the power transmission line enter the inner cavity of the second sleeve 322 by opening the second opening and closing structure 324, so that the second sleeve 322 is sleeved on the power transmission line, and the power taking device of the power transmission line is hung on the power transmission line. The opening and closing structure can open and close the side wall of the sleeve by fastening or loosening bolts, bolts and screws, unlocking or locking the lock catch, pulling out or inserting the bolt and the like.
The outer side wall of the first sleeve 312 close to the second supporting surface 132 and the third supporting surface 133 is further provided with a connecting portion corresponding to the connecting portion arranged on the inner wall of the second supporting surface 132 and the third supporting surface 133, the position of the connecting portion may be a horizontal line straight line one-to-one correspondence, or a horizontal oblique line one-to-one correspondence, or a pair of multiple settings, so that one end of the first elastic member 21 is connected with the second sleeve 322, and the other end is connected with the fifth supporting surface 142, or one end of the third elastic member 23 is connected with the second sleeve 322, and the other end is connected with the third supporting surface 132.
The outer side walls of the second sleeve 322 close to the fifth supporting surface 142 and the sixth supporting surface 143 are further provided with connecting portions corresponding to the connecting portions arranged on the inner walls of the fifth supporting surface 142 and the third supporting surface 143, the positions of the connecting portions may be arranged in a one-to-one correspondence with horizontal straight lines, or in a one-to-one correspondence with horizontal oblique lines, or in a one-to-many correspondence with horizontal oblique lines, so that one end of the second elastic member 21 is connected with the second sleeve 322, the other end of the second elastic member is connected with the fifth supporting surface 142, one end of the fourth elastic member 23 is connected with the second sleeve 322, and the other end of the fourth elastic member is connected with the sixth supporting surface 142.
The utility model provides a power device is got to power transmission line, mounting in the device includes two sub-mountings, first support frame and second support frame in two sub-mountings and the coil pack correspond to each other to different positions on the transmission of electricity are fixed the coil pack, can make the position of coil pack more stable, can cut the magnetic induction line around the transmission line and produce induced-current and provide reliable guarantee for the coil pack on the transmission line.
The embodiment of the application also provides a possible implementation mode of the base. As shown in fig. 6 and 7, a first accommodating space is provided on the base, a sliding assembly 4 is provided in the first accommodating space, the sliding assembly 4 includes a first end portion 41 and a second end portion 42, the first end portion 41 of the sliding assembly 4 extends out of the first accommodating space, the second end portion 42 of the sliding assembly 4 extends to the bottom of the first accommodating space, and the base is slidably connected to the coil assembly 1 through the sliding assembly 4.
Exemplarily, as shown in fig. 7, a first accommodating space is disposed on the base, and the first accommodating space includes: the first accommodating sub-space 312 is disposed on the first base 311, and the second accommodating sub-space 323 is disposed on the second base 321. The first accommodating space is used for accommodating the sliding component 4, and the top view of the first accommodating space can be a rectangle, a square, an ellipse, a rectangle with four corners being rounded corners, a square with four corners being rounded corners, and the like. The sliding assembly 4 includes a first end portion 41 and a second end portion 42, the first end portion 41 of the sliding assembly 4 extends to the outside of the first accommodating space, and the second end portion 42 of the sliding assembly 4 extends to the bottom of the first accommodating space, that is, the first end portion 41 of the sliding assembly 4 is higher than the upper surface of the base. The sliding assembly 4 is used for assisting in sliding, when the first supporting surface 131 or the fourth supporting surface 141 is attached to the base and placed on the upper surface of the base, the sliding assembly 4 enables the base to be separated from the surface where the first supporting surface or the second supporting surface is originally attached, and when the first supporting surface 131 or the fourth supporting surface 141 moves relative to the base, the first supporting surface 131 or the fourth supporting surface 141 can slide more smoothly with the assistance of the sliding assembly 4. The sliding component 4 may be fixed in the first accommodating space of the base, or may not be fixed in the first accommodating space of the base. When the sliding component 4 is not fixed in the first accommodating space of the base, and the first supporting surface 131 or the fourth supporting surface 141 slides on the surface of the sliding component 4, the sliding component 4 may or may not move along with the first supporting surface 131 or the fourth supporting surface 141, which depends on the magnitude of the stress applied to the sliding component 4, and is not described herein. The sliding assembly 4 may be a pulley, a slider, a conveyor mechanism, or the like.
The power taking device for the power transmission line, provided by the embodiment of the application, is provided with the first accommodating space on the base of the fixing part in the device, the accommodating space is used for placing the sliding assembly, the base is connected with the coil assembly in a sliding mode through the sliding assembly, and the sliding assembly is arranged to reduce friction force generated when the first supporting surface or the fourth supporting surface moves on the base, so that the coil assembly is smoother when reciprocating.
The embodiment of the application also provides a possible implementation mode of the coil component. The coil component further comprises a connecting part matched with the sliding component, and the connecting part is used for movably connecting the fixing piece and the coil component. Illustratively, as shown in fig. 7, the connecting portions include a third connecting portion 134 and a fourth connecting portion 135, and the third connecting portion 134 and the fourth connecting portion 135 are respectively disposed on the lower surfaces of the first supporting surface 131 of the first supporting frame 13 and the fourth supporting surface 141 of the second supporting frame 14. The shape of the connecting part can be completely matched with the shape of the first accommodating space or partially matched with the shape of the first accommodating space. The top view of the connecting part can be a rectangle, a square, an ellipse, a rectangle with four corners being rounded corners, a square with four corners being rounded corners, and the like. Alternatively, the connection portion may be a connection groove or a connection baffle, and when the connection portion is a connection groove, it may be a connection groove with a certain depth surrounded by five baffles on the lower surfaces of the first support surface 131 and the fourth support surface 141, so that the first end portion 41 of the sliding assembly 4 extends to the bottom of the connection groove; when the connecting portion is a connecting baffle, it may be a sliding channel formed by oppositely arranging three baffles on the lower surfaces of the first supporting surface 131 and the fourth supporting surface 141 along the direction of the magnetic induction line around the cutting power line, so that the sliding assembly 4 can slide between the two oppositely arranged baffles, thereby realizing the reciprocating motion of the coil assembly 1 along the direction of the magnetic induction line around the cutting power line by means of the elastic member 2 and the fixing member 3, and generating an induced current. The baffle plate can be made of a material with heat insulation, smoothness and insulating performance, so that heat generated when the coil assembly 1 slides cannot be conducted to the induction coil 11, and the influence on the use of the induction coil 11 is avoided.
The embodiment of the application provides a power device is got to power transmission line, all be provided with connecting portion on the lower surface of the first holding surface of first support frame and the fourth holding surface of second support frame in the device, this connecting portion can hold the sliding assembly who extends first accommodation space for sliding assembly can move along fixed sliding channel, so that better auxiliary coil subassembly does the motion of cutting the magnetic induction line around the power transmission line. Meanwhile, the connecting part can isolate the heat generated by the sliding of the support frame and the sliding assembly, and the heat is prevented from being conducted to the induction coil to influence the normal use of the induction coil.
In another optional embodiment, the power line taking device is an optional embodiment of an assembly that the power line taking device may further include, the assembly includes a rectifying assembly, and the rectifying assembly is configured to convert the induced current into a direct current and input the direct current to a load of the power line.
Specifically, one end of the rectifying component can be electrically connected with an induction coil in the coil component, and the other end of the rectifying component can be connected with a power transmission line load, so that induced alternating current generated by the coil component is converted into direct current through the processing of the rectifying component to supply power to the load. The rectifying assembly may include a rectifier, filter, or the like capable of converting the induced ac current generated by the coil assembly cutting the magnetic induction lines to a dc current capable of powering the load.
The working process of the power taking device for the power transmission line is explained by combining a formula as follows: for example, when wind blows horizontally to the coil power taking device, a first plane defined by a second supporting surface, a third supporting surface and a fifth supporting surface in the coil assembly is acted by the wind, or a second plane defined by a sixth supporting surface, a fourth supporting surface and a third supporting surface in the coil assembly is acted by the wind, wherein the relationship between the wind power and the wind speed is as shown in formula (1):
where ρ is the density of air and v w Is the wind speed, v is the speed of movement of the coil assembly, S w Is the force-bearing area of the first plane or the second plane.
When the wind speed is further increased, the wind power is also increased, and at the moment, the coil assembly continues to move at the previous moment and continues to cut the magnetic induction lines in one direction, so that the first elastic element and the second elastic element are further contracted (the third elastic element and the fourth elastic element are further extended) to store energy.
When the wind speed is reduced, the elastic force generated by the elastic piece is larger than the wind power, so that the coil assembly moves in the opposite direction under the action of the elastic force, and the magnetic induction line is cut for the second time to generate induction current. At this point, the reverse movement of the coil assembly will cause the first and second elastic members to elongate (the third and fourth elastic members to contract), releasing energy, and prepare for the next contraction (or elongation).
In the process, the coil assembly is subjected to the combined action of wind power, elastic force of the elastic piece, ampere force and the like.
Assuming that the transmission line is infinitely long and carries direct current I, the magnetic flux density around the line is as shown in equation (2):
where r is the vertical distance from a point in space to the wire.
As shown in fig. 5, under the action of wind, the coil assembly reciprocates to cut the magnetic induction line, and an induced voltage is generated, the magnitude of which is shown in formula (3):
E＝NBLv (3)
wherein, L is the effective length of the induction coil cutting magnetic induction line, and N is the number of turns of the induction coil.
Since a current flows in the induction coil, it is simultaneously acted upon by a magnetic force. The magnitude of the magnetic force is shown in equation (4).
Where i is the current in the winding and R is the total equivalent resistance of the winding and the external circuit.
Because the magnetic force is negligible compared to wind force and spring force. Thus, it is possible to obtain:
ignoring the quadratic term in the above equation, solving equation (5) can result in:
wherein, the first and the second end of the pipe are connected with each other,
thus, the induced voltage is:
wherein W is the distance between two planes of the winding coilAfter the separation, the water is separated from the water,
when the wind speed fluctuates at high frequency, the coil assembly vibrates in a reciprocating high-frequency mode according to the process under the combined action of wind power and the elastic force of the elastic piece, cuts the magnetic induction lines, continuously generates electric energy, and then conveys the electric energy to energy storage equipment after being processed by the rectifying assembly so as to be used by a load or directly conveys the electric energy to the load to supply power to the load.
Illustratively, when N is 2000, W is 0.1m, L is 0.3m, k is 150N/m, m is 0.7kg, I is 2000A, v W ＝7m/s，S W ＝0.06m 2 When R is 1113 Ω, the average output power is about 1mW by simulation calculation assuming that the wind speed fluctuates within a range of 7 ± 1 m/s. When the actual load is a wireless communication unit, the typical power consumption in the transmission and reception process of the XBee embedded SMT radio frequency module is 105mW, while the power consumption in the sleep mode is about 3 μ W. Assuming that the sensor unit needs to transmit and receive data every 15 minutes, the average operating time for data communication is 3 seconds, and the energy consumption during every 15 minutes is about 318 mJ. When the average output power of this generator is 1mW, then the total energy collected over a 15 minute interval will be 900mJ, which is far in excess of that required by the wireless sensor node.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.
Claims (10)
1. The utility model provides a power transmission line electricity taking device which characterized in that, the device includes: the coil assembly is connected with the fixing piece through the elastic piece;
the coil assembly is used for generating pressure on the elastic piece under the action of external force, and the direction of the pressure is the same as that of the magnetic induction line around the cutting power transmission line;
the elastic piece is used for stretching along the direction of the magnetic induction line around the cutting power transmission line under the action of the pressure so as to drive the coil assembly to reciprocate along the direction of the magnetic induction line around the cutting power transmission line;
the coil assembly is also used for generating induction current in the reciprocating process and outputting the induction current;
the fixing part comprises two sub-fixing parts, each sub-fixing part comprises a base, a first accommodating space is formed in each base, a sliding assembly is arranged in each first accommodating space and comprises a first end portion and a second end portion, the first end portion of each sliding assembly extends out of the corresponding first accommodating space, the second end portion of each sliding assembly extends to the bottom of the corresponding first accommodating space, and the base is connected with the coil assembly in a sliding mode through the sliding assemblies.
2. The apparatus of claim 1, wherein the coil assembly: the induction coil winding device comprises a support frame and an induction coil wound on the support frame.
3. The device of claim 2, wherein the support frame comprises: the first end of the first support frame is connected with the first end of the second support frame, the second end of the first support frame is connected with the second end of the second support frame, the fourth support frame is connected with the second end of the second support frame, the first support frame is arranged in parallel with the second support frame, the third support frame is arranged in parallel with the fourth support frame, the third support frame is arranged in parallel with the first support frame and the second support frame, and the fourth support frame is arranged in perpendicular with the first support frame and the second support frame.
4. The device of claim 3, wherein the induction coil is attached to the first surface of the support frame; the first surface is a surface of the coil assembly away from the fixing member.
5. The device of claim 3, wherein the first support bracket is provided with the resilient member proximate to a surface of the power line and/or the second support bracket is provided with the resilient member proximate to a surface of the power line.
6. The apparatus of claim 1, wherein the sub-fixing member further comprises a sleeve, an outer wall of the sleeve is fixedly connected to the elastic member, the sleeve is internally sleeved with the power line, and the base is slidably connected to the coil assembly.
7. The apparatus of claim 1, wherein the coil assembly further comprises a connecting portion that mates with the sliding assembly, the connecting portion configured to movably connect the mount and the coil assembly.
8. The device of claim 7, wherein the connecting portion may be a connecting groove or a connecting baffle.
9. The apparatus of claim 8, wherein the coil assembly is a closed structure wound from an induction coil.
10. The apparatus of claim 1, further comprising a rectifying component for converting the induced current to a direct current for input to a load of the power transmission line.
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