Eddy current damper for vibration reduction of flexible photovoltaic support

Abstract

The utility model provides an eddy current damper for vibration reduction of a flexible photovoltaic support. The eddy current damper for vibration reduction of the flexible photovoltaic support comprises a supporting frame, one side of the top of the supporting frame is fixedly sleeved with a first damping sleeve, and the other side of the top of the supporting frame is fixedly sleeved with a second damping sleeve. According to the eddy current damper used for vibration reduction of the flexible photovoltaic support, by arranging the pull rope, when vibration reduction damping is conducted on the photovoltaic support, the shaking support can stretch the pull rope, the pull rope can drive the first storage wheel and the second storage wheel to rotate, and therefore vibration reduction damping is conducted on the photovoltaic support. At the moment, the permanent magnet can hinder the rotating first storage wheel and the rotating second storage wheel, so that the speed reduction effect during rotation of the first storage wheel and the second storage wheel is achieved, the situation that the single first storage wheel difficultly hinders a pull rope with high tension is avoided, and the damping effect of the eddy current damper is greatly improved; therefore, the damping effect of the photovoltaic support is improved.

Description

Technical Field

[0001] The utility model relates to the field of eddy current dampers, in particular to an eddy current damper used for vibration reduction of a flexible photovoltaic support. Background Art

[0002] The basic principle of eddy current damper is to use electromagnetic effect to convert structural kinetic energy into electrical energy and dissipate energy through resistance thermal effect. Specifically, when the conductor moves and cuts the magnetic lines of force, a current will be generated in the conductor, and the generated current will be affected by the magnetic field to hinder the relative movement of the conductor, which is the damping force. At the same time, the current passes through the resistive conductor to generate a thermal effect to dissipate energy. Since electromagnetic interaction does not require contact, eddy current dampers have the advantages of low mechanical friction and loss, no need for lubrication, long service life and stable damping force. Flexible photovoltaic brackets use tensioned cables to support photovoltaic modules, and their stiffness is much smaller than that of conventional brackets. Under the action of wind loads, flexible photovoltaic brackets are prone to large deformation and vibration, which leads to additional stress on the cable structure and photovoltaic modules, and may cause or aggravate hidden cracks in the modules, affecting the safe operation of the system.

[0003] In the existing technology, for example, the Chinese authorization announcement number is CN219712183U, "An eddy current damper for vibration reduction of a flexible photovoltaic support", which includes a damping shell as a whole, a main shaft, a permanent magnet stator, a conductor ring and a spring box, and a transmission gear assembly is arranged between the spring box and the conductor ring; the main shaft is fixed at the center of the damping shell as a whole, and the permanent magnet stator is fixed at the bottom of the inner wall of the damping shell as a whole; the conductor ring is arranged on the main shaft, and a first gear is fixedly installed on the conductor ring; the spring box is arranged on the main shaft, and a second gear is fixedly installed at the bottom of the spring box, and a transmission wire is arranged on the spring box; the transmission gear assembly includes a first transmission gear and a second transmission gear, and the first transmission gear is meshed with the second gear, and the second transmission gear is meshed with the first gear. Through the transmission gear assembly, when the spring box is subjected to the traction force of the transmission wire, the torsional motion can be transmitted and amplified, and the vibration amplitude of the photovoltaic support can be effectively reduced through the electromagnetic damping effect.

[0004] When the damper is installed and used in the existing technology, due to the large size of the photovoltaic bracket, a single eddy current damper with low damping effect is difficult to damp and reduce vibration of the shaking photovoltaic bracket, which leads to the problem of poor practical effect of the damper.

[0005] Therefore, it is necessary to provide an eddy current damper for vibration reduction of flexible photovoltaic brackets to solve the above technical problems. Utility Model Content

[0006] The utility model provides an eddy current damper for vibration reduction of a flexible photovoltaic bracket, which solves the problem that a single eddy current damper with low damping effect is difficult to damp and reduce vibration of a shaking photovoltaic bracket due to the large size of the photovoltaic bracket, thereby resulting in poor practical effect of the damper.

[0007] In order to solve the above technical problems, the utility model provides an eddy current damper for vibration reduction of a flexible photovoltaic bracket, comprising a support frame, a damping sleeve No. 1 is fixedly sleeved on one side of the top of the support frame, a damping sleeve No. 2 is fixedly sleeved on the other side of the top of the support frame, a permanent magnet is fixedly connected to the side of the inner wall of the damping sleeve No. 1, and a positioning shaft is internally movably sleeved on the inside of the damping sleeve No. 1, a storage wheel is fixedly sleeved on the outside of the positioning shaft, a pull rope is internally movably sleeved on the inside of the storage wheel No. 1, and a storage wheel is internally movably sleeved on the inside of the damping sleeve No. 2, the top of the damping sleeve No. 1 is fixedly connected to a limiting plate, an auxiliary mechanism is arranged on the top of the limiting plate, a limiting mechanism is arranged on the bottom of the inner cavity of the support frame, a protective mechanism is arranged on the top of the damping sleeve No. 1, a bearing is fixedly sleeved on the front of the damping sleeve No. 1, one end of the positioning shaft is fixedly connected to a heat sink, and a closing mechanism is arranged on the front of the damping sleeve No. 1.

[0008] Preferably, one end of the pull rope is fixedly sleeved inside the second storage wheel, and the pull rope is movably sleeved inside the second damping sleeve.

[0009] Preferably, the auxiliary mechanism comprises a clamping plate, the clamping plate is fixedly sleeved on the outside of the pull rope, and the outside of the pull rope is movably sleeved with a spring.

[0010] Preferably, the limiting mechanism comprises a support column, the support column is fixedly connected to the bottom of the inner cavity of the support frame, the top of the support column is movably sleeved with a limiting wheel, and the limiting wheel is movably sleeved on the outside of the pull rope.

[0011] Preferably, the protection mechanism comprises a limiting hole, the limiting hole is opened at the top of the No. 1 damping sleeve, and a sliding ball is movably sleeved on the side of the inner wall of the limiting hole.

[0012] Preferably, the bearing is movably sleeved on the outside of the positioning shaft, and the bearing is located in the middle of the front side of the No. 1 damping sleeve.

[0013] Preferably, the heat sink is made of metal aluminum, and the number of heat sinks is four.

[0014] Preferably, the closing mechanism comprises a closing cover, the closing cover is fixedly sleeved on the front side of the No. 1 damping sleeve, and the inner thread of the closing cover is sleeved with bolts.

[0015] Compared with the related art, the eddy current damper for vibration reduction of flexible photovoltaic bracket provided by the utility model has the following beneficial effects:

[0016] The utility model provides an eddy current damper for vibration reduction of a flexible photovoltaic bracket. By setting a pull rope, when the photovoltaic bracket is subjected to vibration reduction and damping, the shaking bracket can stretch the pull rope, so that the pull rope can drive the first storage wheel and the second storage wheel to rotate. At this time, the permanent magnet can hinder the rotating first storage wheel and the second storage wheel, thereby achieving a deceleration effect when the first storage wheel and the second storage wheel rotate, so that it is avoided that the single first storage wheel is difficult to hinder the pull rope with strong pulling force, thereby greatly improving the damping effect of the eddy current damper, that is, improving the vibration reduction effect of the photovoltaic bracket;

[0017] By setting up an auxiliary mechanism, when the photovoltaic bracket shakes and drives the pull rope to stretch, the pull rope can squeeze the spring through the clamping plate, so that the spring can release the pressure of the clamping plate through deformation, thereby improving the buffering effect of the clamping plate, that is, improving the buffering effect when the pull rope is stretched. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a preferred embodiment of an eddy current damper for vibration reduction of a flexible photovoltaic support provided by the utility model;

[0019] Figure 2 for Figure 1 A front view of an eddy current damper for vibration reduction of a flexible photovoltaic support is shown;

[0020] Figure 3 for Figure 1 A front view of a damping sleeve No. 1 in an eddy current damper for vibration reduction of a flexible photovoltaic support is shown;

[0021] Figure 4 for Figure 1 An enlarged schematic diagram of point A in an eddy current damper used for vibration reduction of a flexible photovoltaic support is shown.

[0022] Numbers in the figure: 1. Support frame; 2. Damping sleeve No. 1; 3. Damping sleeve No. 2; 4. Permanent magnet; 5. Positioning shaft; 6. Storage wheel No. 1; 7. Pull rope; 8. Storage wheel No. 2; 9. Limiting plate; 10. Auxiliary mechanism; 101. Clamping plate; 102. Spring; 11. Limiting mechanism; 111. Support column; 112. Limiting wheel; 12. Protective mechanism; 121. Limiting hole; 122. Sliding ball; 13. Bearing; 14. Heat sink; 15. Closing mechanism; 151. Closing cover; 152. Bolt. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of an eddy current damper for vibration reduction of a flexible photovoltaic support provided by the utility model; Figure 2 for Figure 1 A front view of an eddy current damper for vibration reduction of a flexible photovoltaic support is shown; Figure 3 for Figure 1 A front view of a damping sleeve No. 1 in an eddy current damper for vibration reduction of a flexible photovoltaic support is shown; Figure 4 for Figure 1 An enlarged schematic diagram of point A in an eddy current damper used for vibration reduction of a flexible photovoltaic support is shown. An eddy current damper for vibration reduction of a flexible photovoltaic support comprises a support frame 1, a damping sleeve 2 is fixedly sleeved on one side of the top of the support frame 1, a damping sleeve 3 is fixedly sleeved on the other side of the top of the support frame 1, a permanent magnet 4 is fixedly connected to the side of the inner wall of the damping sleeve 2, a positioning shaft 5 is movably sleeved inside the damping sleeve 2, a storage wheel 6 is fixedly sleeved outside the positioning shaft 5, a pull rope 7 is movably sleeved inside the storage wheel 6, a storage wheel 8 is movably sleeved inside the damping sleeve 3, a limiting plate 9 is fixedly connected to the top of the damping sleeve 2, an auxiliary mechanism 10 is arranged on the top of the limiting plate 9, a limiting mechanism 11 is arranged on the bottom of the inner cavity of the support frame 1, a protective mechanism 12 is arranged on the top of the damping sleeve 2, a bearing 13 is fixedly sleeved on the front of the damping sleeve 2, a heat sink 14 is fixedly connected to one end of the positioning shaft 5, and a closing mechanism 15 is arranged on the front of the damping sleeve 2.

[0025] One end of the pull rope 7 is fixedly sleeved on the inside of the No. 2 storage wheel 8, and the pull rope 7 is movably sleeved on the inside of the No. 2 damping sleeve 3; by setting the pull rope 7, when the photovoltaic bracket is performing shock absorption and damping, the shaking bracket can stretch the pull rope 7, so that the pull rope 7 can drive the No. 1 storage wheel 6 and the No. 2 storage wheel 8 to rotate. At this time, the permanent magnet 4 can hinder the rotating No. 1 storage wheel 6 and the No. 2 storage wheel 8, thereby achieving the deceleration effect of the No. 1 storage wheel 6 and the No. 2 storage wheel 8 when they rotate, so as to avoid the difficulty of the single No. 1 storage wheel 6 to hinder the pull rope 7 with strong pulling force, thereby greatly improving the damping effect of the eddy current damper, that is, improving the shock absorption effect of the photovoltaic bracket.

[0026] The auxiliary mechanism 10 includes a card plate 101, which is fixedly sleeved on the outside of the pull rope 7, and the outside of the pull rope 7 is movably sleeved with a spring 102; by setting the auxiliary mechanism 10, when the photovoltaic bracket shakes and drives the pull rope 7 to stretch, the pull rope 7 can squeeze the spring 102 through the card plate 101, so that the spring 102 can release the pressure of the card plate 101 through deformation, thereby improving the buffering effect of the card plate 101, that is, improving the buffering effect when the pull rope 7 is stretched.

[0027] The limiting mechanism 11 includes a support column 111, which is fixedly connected to the bottom of the inner cavity of the support frame 1. The top of the support column 111 is movably sleeved with a limiting wheel 112, and the limiting wheel 112 is movably sleeved on the outside of the pull rope 7. By setting the limiting mechanism 11, when the pull rope 7 moves and stretches, the limiting wheel 112 is able to limit the moving pull rope 7, thereby avoiding the problem of deviation of the pull rope 7 when it moves, thereby improving the stability of the position of the pull rope 7 when it moves.

[0028] The protective mechanism 12 includes a limiting hole 121, which is opened at the top of the No. 1 damping sleeve 2, and a sliding ball 122 is movably sleeved on the side of the inner wall of the limiting hole 121; by setting the protective mechanism 12, when the pull rope 7 is stretched, the sliding ball 122 can limit the moving and stretched pull rope 7, thereby avoiding the problem of friction between the pull rope 7 and the inner wall of the limiting hole 121 during the stretching movement, thereby causing the pull rope 7 to wear, thereby improving the service life of the pull rope 7.

[0029] The bearing 13 is movably sleeved on the outside of the positioning shaft 5, and the bearing 13 is located in the middle of the front side of the No. 1 damping sleeve 2; by setting the bearing 13, when the No. 1 storage wheel 6 drives the positioning shaft 5 to rotate, the bearing 13 can support the rotating positioning shaft 5, thereby avoiding the problem of friction between the frequently rotating positioning shaft 5 and the No. 1 damping sleeve 2, thereby improving the smoothness of the rotation of the positioning shaft 5.

[0030] The material of the heat sink 14 is metal aluminum material, and the number of the heat sink 14 is four; by setting the heat sink 14, when the No. 1 storage wheel 6 rotates and generates current, the current can be transmitted to the inside of the positioning shaft 5 to be converted into heat. At this time, the heat sink 14 can absorb the heat and then discharge it to the outside of the No. 1 damping sleeve 2, thereby improving the heat dissipation effect inside the No. 1 damping sleeve 2.

[0031] The closing mechanism 15 includes a closing cover 151, which is fixedly sleeved on the front side of the No. 1 damping sleeve 2, and the internal thread of the closing cover 151 is sleeved with a bolt 152; by setting the closing mechanism 15, when the damper is assembled and fixed, the closing cover 151 is sleeved on the inside of the No. 1 damping sleeve 2, and the bolt 152 is rotated at this time so that the bolt 152 can fix the closing cover 151 on the inside of the No. 1 damping sleeve 2, thereby achieving the closing effect of the No. 1 damping sleeve 2, thereby bringing convenience to the assembly of the damper.

[0032] The working principle of the eddy current damper for vibration reduction of a flexible photovoltaic bracket provided by the utility model is as follows:

[0033] Step 1: First, when the photovoltaic bracket is performing shock absorption and damping, the shaking bracket can stretch the pull rope 7, so that the pull rope 7 can drive the No. 1 storage wheel 6 and the No. 2 storage wheel 8 to rotate. At this time, the permanent magnet 4 can hinder the rotating No. 1 storage wheel 6 and the No. 2 storage wheel 8, thereby achieving the deceleration effect of the No. 1 storage wheel 6 and the No. 2 storage wheel 8 when rotating, so as to avoid the difficulty of the single No. 1 storage wheel 6 to hinder the pull rope 7 with strong tension, thereby greatly improving the damping effect of the eddy current damper, that is, improving the shock absorption effect of the photovoltaic bracket. When the photovoltaic bracket shakes and drives the pull rope 7 to stretch, the pull rope 7 can pass through the card plate 101 to the spring 102 The spring 102 is squeezed so that the spring 102 can release the pressure of the card plate 101 through deformation, thereby improving the buffering effect of the card plate 101, that is, improving the buffering effect when the drawstring 7 is stretched. When the drawstring 7 is moved and stretched, the limiting wheel 112 can limit the moving drawstring 7, thereby avoiding the problem of deviation of the drawstring 7 when it moves, thereby improving the position stability of the drawstring 7 when it moves. When the drawstring 7 is stretched, the sliding ball 122 can limit the moving and stretched drawstring 7, thereby avoiding the problem of friction between the drawstring 7 and the inner wall of the limiting hole 121 when the drawstring 7 is stretched and moved, thereby causing the drawstring 7 to wear, thereby improving the service life of the drawstring 7;

[0034] Step 2: When the No. 1 storage wheel 6 drives the positioning shaft 5 to rotate, the bearing 13 is able to support the rotating positioning shaft 5, so as to avoid the problem of frequent rotation of the positioning shaft 5 and the friction with the No. 1 damping sleeve 2, thereby improving the smoothness of the rotation of the positioning shaft 5. When the No. 1 storage wheel 6 generates current during rotation, the current is transmitted to the interior of the positioning shaft 5 and converted into heat. At this time, the heat sink 14 is able to absorb the heat and then discharge it to the outside of the No. 1 damping sleeve 2, thereby improving the heat dissipation effect inside the No. 1 damping sleeve 2. When the damper is assembled and fixed, the closing cover 151 is sleeved on the inside of the No. 1 damping sleeve 2. At this time, the bolt 152 is rotated so that the bolt 152 can fix the closing cover 151 inside the No. 1 damping sleeve 2, thereby achieving the closing effect of the No. 1 damping sleeve 2, thereby facilitating the assembly of the damper.

[0035] Compared with the related art, the eddy current damper for vibration reduction of flexible photovoltaic bracket provided by the utility model has the following beneficial effects:

[0036] By setting the pull rope 7, when the photovoltaic bracket is performing shock absorption and damping, the shaking bracket can stretch the pull rope 7, so that the pull rope 7 can drive the No. 1 storage wheel 6 and the No. 2 storage wheel 8 to rotate. At this time, the permanent magnet 4 can hinder the rotating No. 1 storage wheel 6 and the No. 2 storage wheel 8, thereby achieving the deceleration effect of the No. 1 storage wheel 6 and the No. 2 storage wheel 8 during rotation, so as to avoid the difficulty of the single No. 1 storage wheel 6 to hinder the pull rope 7 with strong tension, thereby greatly improving the damping effect of the eddy current damper, that is, improving the shock absorption effect of the photovoltaic bracket.

[0037] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An eddy current damper for vibration reduction of a flexible photovoltaic support, comprising a support frame (1), characterized in that: A first damping sleeve (2) is fixedly sleeved on one side of the top of the support frame (1), a second damping sleeve (3) is fixedly sleeved on the other side of the top of the support frame (1), a permanent magnet (4) is fixedly connected to the side of the inner wall of the first damping sleeve (2), a positioning shaft (5) is movably sleeved inside the first damping sleeve (2), a first storage wheel (6) is fixedly sleeved on the outside of the positioning shaft (5), a pull rope (7) is movably sleeved inside the first storage wheel (6), and a second storage wheel (3) is movably sleeved inside the second damping sleeve (3). The first damping sleeve (2) is provided with a wheel (8), the top of the first damping sleeve (2) is fixedly connected to a limiting plate (9), the top of the limiting plate (9) is provided with an auxiliary mechanism (10), the bottom of the inner cavity of the support frame (1) is provided with a limiting mechanism (11), the top of the first damping sleeve (2) is provided with a protective mechanism (12), the front of the first damping sleeve (2) is fixedly sleeved with a bearing (13), one end of the positioning shaft (5) is fixedly connected to a heat sink (14), and the front of the first damping sleeve (2) is provided with a closing mechanism (15).

2. The eddy current damper for vibration reduction of a flexible photovoltaic support according to claim 1, characterized in that: One end of the pull rope (7) is fixedly sleeved inside the second storage wheel (8), and the pull rope (7) is movably sleeved inside the second damping sleeve (3).

3. The eddy current damper for vibration reduction of a flexible photovoltaic support according to claim 1, characterized in that: The auxiliary mechanism (10) comprises a clamping plate (101), wherein the clamping plate (101) is fixedly sleeved on the outside of the pull rope (7), and a spring (102) is movably sleeved on the outside of the pull rope (7).

4. The eddy current damper for vibration reduction of a flexible photovoltaic support according to claim 1, characterized in that: The limiting mechanism (11) comprises a support column (111), the support column (111) is fixedly connected to the bottom of the inner cavity of the support frame (1), the top of the support column (111) is movably sleeved with a limiting wheel (112), and the limiting wheel (112) is movably sleeved on the outside of the pull rope (7).

5. The eddy current damper for vibration reduction of a flexible photovoltaic support according to claim 1, characterized in that: The protection mechanism (12) comprises a limiting hole (121), wherein the limiting hole (121) is opened at the top of the first damping sleeve (2), and a sliding ball (122) is movably sleeved on the side of the inner wall of the limiting hole (121).

6. The eddy current damper for vibration reduction of a flexible photovoltaic support according to claim 1, characterized in that: The bearing (13) is movably sleeved on the outside of the positioning shaft (5), and the bearing (13) is located in the middle of the front side of the first damping sleeve (2).

7. The eddy current damper for vibration reduction of a flexible photovoltaic support according to claim 1, characterized in that: The heat sink (14) is made of metal aluminum material, and the number of the heat sink (14) is four.

8. The eddy current damper for vibration reduction of a flexible photovoltaic support according to claim 1, characterized in that: The closing mechanism (15) comprises a closing cover (151), the closing cover (151) being fixedly sleeved on the front side of the first damping sleeve (2), and the inner thread of the closing cover (151) being sleeved with a bolt (152).

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