A ground device for a power distribution station of a solar photoelectric system

Abstract

The application relates to the new energy technology field and discloses a solar photoelectric system power distribution station grounding device capable of preventing electric leakage, which comprises a mounting shell and a mounting plate, the top of the mounting plate is fixedly connected with a first spring, the top of the first spring is fixedly connected with a grounding flat iron, the top of the mounting plate is fixedly connected with a positive conductive rod, the top of the mounting plate is fixedly connected with a negative conductive rod, and the top of the grounding flat iron is fixedly connected with an induction assembly. The solar photoelectric system power distribution station grounding device capable of preventing electric leakage is characterized in that the negative conductive rod is in contact with the alloy iron body, reaches the working voltage of the negative voltage-sensitive resistor, turns on the circuit, makes the piezoelectric crystal be electrified to generate the inverse piezoelectric effect and thus generates vibration, the vibration of the vibration film layer drives the closed conductor to cut the magnetic induction lines between the first magnet and the second magnet to generate current, the current generated by the closed conductor makes the electromagnet be electrified to have magnetism, the magnets push the block to extrude the storage capsule, the epoxy coal tar is extruded to wrap the grounding flat iron and prevent electric leakage.

Description

Technical Field

[0001] This invention relates to the field of new energy technology, specifically to a grounding device for a solar photovoltaic system substation that can prevent leakage current. Background Technology

[0002] Photovoltaic power generation is based on the photovoltaic effect, using solar cells to directly convert sunlight into electrical energy. Whether used independently or connected to the grid, a photovoltaic power generation system mainly consists of three parts: solar panels (modules), controllers, and inverters. Photovoltaic power generation equipment is extremely sophisticated, reliable, stable, long-lasting, and easy to install and maintain. Theoretically, photovoltaic power generation technology can be used in any situation requiring power, from spacecraft to household power supplies, from megawatt-level power plants to toys; photovoltaic power can be ubiquitous.

[0003] Solar photovoltaic equipment is generally fixed and installed at high locations to achieve higher solar energy utilization. Therefore, it needs to be equipped with lightning protection grounding devices. The grounding device consists of grounding electrodes (plates), grounding busbars (indoor and outdoor), grounding down conductors (grounding jumpers), and frame grounding. It is used to connect the electrical system to the earth. The metal object that directly contacts the earth to achieve electrical connection is the grounding electrode. The grounding electrode is generally made of grounding lightning protection flat iron. However, the damp environment underground can cause oxidation and rust on the grounding lightning protection flat iron, which can easily affect the lightning protection effect. Therefore, we propose a grounding device for a solar photovoltaic system substation that can prevent leakage to solve the above problems. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a grounding device for a solar photovoltaic system substation that can prevent leakage current. It has the advantages of preventing leakage current and having a high safety factor, and solves the problem that grounding lightning protection flat iron can oxidize and rust due to the humid environment underground, which can easily affect the lightning protection effect.

[0006] (II) Technical Solution

[0007] To achieve the goal of preventing leakage and ensuring a high safety factor, the present invention provides the following technical solution: a grounding device for a solar photovoltaic system substation that can prevent leakage, comprising a mounting shell and a mounting plate, wherein a first spring is fixedly connected to the top of the mounting plate, a grounding flat iron is fixedly connected to the top of the first spring, a positive conductive rod is fixedly connected to the top of the mounting plate, a negative conductive rod is fixedly connected to the top of the mounting plate, a sensing component is fixedly connected to the top of the grounding flat iron, a leakage prevention component is fixedly connected inside the mounting shell, and an alarm is fixedly connected to the outside of the mounting shell.

[0008] Furthermore, the grounding flat iron includes an alloy iron body, with a galvanized layer fixedly connected to the outside of the alloy iron body. The tops of the positive and negative conductive rods are movably connected to the bottom of the galvanized layer, and the conductivity of the galvanized layer is better than that of the alloy iron body.

[0009] Furthermore, the sensing component includes a sensing film layer, a mounting bracket fixedly connected to the top of the sensing film layer, a vibrating film layer fixedly connected to the top of the mounting bracket, a closed conductor fixedly connected to the outer side of the vibrating film layer, a second spring fixedly connected to the inner wall of the mounting housing, a piezoelectric crystal fixedly connected to the bottom of the second spring, a negative varistor fixedly connected to the inside of the mounting housing, a first magnet fixedly connected to the inside of the mounting housing, and a second magnet fixedly connected to the inside of the mounting housing.

[0010] Furthermore, the negative conductive rod is electrically connected to the negative varistor, and the negative varistor is electrically connected to the piezoelectric crystal. When the grounding flat iron is corroded, the zinc plating layer is destroyed, and the negative conductive rod comes into contact with the alloy iron body, causing the current through the negative conductive rod to decrease. At this time, the working voltage of the negative varistor is reached, the circuit is connected, and the piezoelectric crystal is energized to produce the inverse piezoelectric effect, thereby generating vibration.

[0011] Furthermore, the outer side of the closed conductor is movably connected between the first magnet and the second magnet, and the vibrating film layer drives the closed conductor to vibrate, causing the closed conductor to cut magnetic field lines between the first magnet and the second magnet to generate current.

[0012] Furthermore, the anti-leakage component includes a receiving groove, a storage bladder is fixedly connected inside the receiving groove, a magnetic push block is fixedly connected outside the storage bladder, a third spring is fixedly connected outside the magnetic push block, and an electromagnet is fixedly connected inside the mounting housing.

[0013] Furthermore, the storage bladder is filled with epoxy coal tar pitch, and a liquid outlet is fixedly connected inside the storage bladder. The epoxy coal tar pitch is squeezed out by a magnetic pusher block, thereby wrapping the grounding flat iron to prevent leakage.

[0014] Furthermore, the closed conductor is electrically connected to the electromagnet, and the electromagnet and the corresponding surfaces of the magnetic push block have opposite magnetic properties. The current generated by the closed conductor makes the electromagnet magnetic, and a repulsive force is generated between the electromagnet and the magnetic push block.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a grounding device for a solar photovoltaic system substation that can prevent leakage current, and has the following beneficial effects:

[0017] 1. This grounding device for a solar photovoltaic system that prevents leakage has a negative conductive rod in contact with the alloy iron body to reach the working voltage of the negative varistor, connecting the circuit and causing the piezoelectric crystal to vibrate due to the inverse piezoelectric effect. When the vibrating membrane vibrates, it drives the closed conductor to cut the magnetic field lines between the first and second magnets to generate current. The current generated by the closed conductor makes the electromagnet magnetic. The storage bag is squeezed by the magnet push block, extruding the epoxy coal tar pitch, thereby wrapping the grounding flat iron to prevent leakage.

[0018] 2. The grounding equipment of the substation for the solar photovoltaic system that can prevent leakage will cause the sensing film to expand when the grounding flat iron is further corroded, which will deform the mounting bracket and tighten the vibrating film. The natural frequency of the film will increase, which will enhance the vibration frequency of the vibrating film. The closed conductor is electrically connected to the positive varistor, which is electrically connected to the alarm. After the current generated by the closed conductor increases, the circuit is connected, which will cause the alarm to sound. Attached Figure Description

[0019] Figure 1 This is a side view of the mounting housing of the present invention;

[0020] Figure 2 This is a side view of the sensing component of the present invention;

[0021] Figure 3 This is a side view of the grounding flat iron of the present invention;

[0022] Figure 4 This is a side view of the leakage protection component of the present invention.

[0023] In the diagram: 1. Mounting plate; 2. First spring; 3. Grounding flat iron; 31. Alloy iron body; 32. Galvanized layer; 4. Positive conductive rod; 5. Negative conductive rod; 6. Sensing component; 61. Sensing membrane layer; 62. Mounting bracket; 63. Vibrating membrane layer; 64. Closed conductor; 65. Second spring; 66. Piezoelectric crystal; 67. Negative varistor; 68. First magnet; 69. Second magnet; 7. Leakage protection component; 71. Receiving groove; 72. Storage bladder; 73. Magnet pusher; 74. Third spring; 75. Electromagnet; 8. Alarm; 9. Mounting housing. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1:

[0026] Please see Figure 1-3 A grounding device for a solar photovoltaic system substation that can prevent leakage includes a mounting housing 9 and a mounting plate 1. A first spring 2 is fixedly connected to the top of the mounting plate 1, a grounding flat iron 3 is fixedly connected to the top of the first spring 2, a positive conductive rod 4 is fixedly connected to the top of the mounting plate 1, a negative conductive rod 5 is fixedly connected to the top of the mounting plate 1, a sensing component 6 is fixedly connected to the top of the grounding flat iron 3, a leakage prevention component 7 is fixedly connected inside the mounting housing 9, and an alarm 8 is fixedly connected to the outside of the mounting housing 9. The grounding flat iron 3 includes an alloy iron body 31, a galvanized layer 32 is fixedly connected to the outside of the alloy iron body 31, and the tops of the positive conductive rod 4 and the negative conductive rod 5 are movably connected to the bottom of the galvanized layer 32. The conductivity of the galvanized layer 32 is better than that of the alloy iron body 31.

[0027] The sensing component 6 includes a sensing diaphragm layer 61, a mounting bracket 62 fixedly connected to the top of the sensing diaphragm layer 61, a vibrating diaphragm layer 63 fixedly connected to the top of the mounting bracket 62, a closed conductor 64 fixedly connected to the outer side of the vibrating diaphragm layer 63, a second spring 65 fixedly connected to the inner wall of the mounting housing 9, a piezoelectric crystal 66 fixedly connected to the bottom of the second spring 65, a negative varistor 67 fixedly connected inside the mounting housing 9, a first magnet 68 fixedly connected inside the mounting housing 9, a second magnet 69 fixedly connected inside the mounting housing 9, and a negative conductive rod 5 electrically connected to the negative varistor 67. Resistor 67 is electrically connected to piezoelectric crystal 66. When the grounding flat iron 3 is corroded, the zinc plating layer 32 is destroyed, and the negative conductive rod 5 comes into contact with the alloy iron body 31, causing the current through the negative conductive rod 5 to decrease. At this time, the working voltage of the negative varistor 67 is reached, and the circuit is connected, causing the piezoelectric crystal 66 to be energized and generate vibration due to the inverse piezoelectric effect. The outer side of the closed conductor 64 is movably connected between the first magnet 68 and the second magnet 69. The vibrating diaphragm layer 63 drives the closed conductor 64 to vibrate, causing the closed conductor 64 to cut magnetic field lines between the first magnet 68 and the second magnet 69 to generate current.

[0028] Example 2:

[0029] Please see Figure 1 and Figure 4A grounding device for a solar photovoltaic system substation that can prevent leakage includes a mounting housing 9 and a mounting plate 1. A first spring 2 is fixedly connected to the top of the mounting plate 1, a grounding flat iron 3 is fixedly connected to the top of the first spring 2, a positive conductive rod 4 is fixedly connected to the top of the mounting plate 1, a negative conductive rod 5 is fixedly connected to the top of the mounting plate 1, a sensing component 6 is fixedly connected to the top of the grounding flat iron 3, a leakage prevention component 7 is fixedly connected inside the mounting housing 9, and an alarm 8 is fixedly connected to the outside of the mounting housing 9. The grounding flat iron 3 includes an alloy iron body 31, a galvanized layer 32 is fixedly connected to the outside of the alloy iron body 31, and the tops of the positive conductive rod 4 and the negative conductive rod 5 are movably connected to the bottom of the galvanized layer 32. The conductivity of the galvanized layer 32 is better than that of the alloy iron body 31.

[0030] The anti-leakage component 7 includes a receiving groove 71, a storage bladder 72 fixedly connected inside the receiving groove 71, a magnetic pusher 73 fixedly connected to the outside of the storage bladder 72, a third spring 74 fixedly connected to the outside of the magnetic pusher 73, an electromagnet 75 fixedly connected inside the mounting housing 9, an epoxy coal tar pitch filled inside the storage bladder 72, and a liquid outlet fixedly connected inside the storage bladder 72. By squeezing the storage bladder 72 with the magnetic pusher 73, the epoxy coal tar pitch is squeezed out, thereby wrapping the grounding flat iron 3 to prevent leakage. A closed conductor 64 is electrically connected to the electromagnet 75. The electromagnet 75 and the magnetic pusher 73 have opposite magnetic properties. The current generated by the closed conductor 64 makes the electromagnet 75 energized and magnetic, and a repulsive force is generated between the electromagnet 75 and the magnetic pusher 73.

[0031] Example 3:

[0032] Please see Figure 1-4 A grounding device for a solar photovoltaic system substation that can prevent leakage includes a mounting housing 9 and a mounting plate 1. A first spring 2 is fixedly connected to the top of the mounting plate 1, a grounding flat iron 3 is fixedly connected to the top of the first spring 2, a positive conductive rod 4 is fixedly connected to the top of the mounting plate 1, a negative conductive rod 5 is fixedly connected to the top of the mounting plate 1, a sensing component 6 is fixedly connected to the top of the grounding flat iron 3, a leakage prevention component 7 is fixedly connected inside the mounting housing 9, and an alarm 8 is fixedly connected to the outside of the mounting housing 9. The grounding flat iron 3 includes an alloy iron body 31, a galvanized layer 32 is fixedly connected to the outside of the alloy iron body 31, and the tops of the positive conductive rod 4 and the negative conductive rod 5 are movably connected to the bottom of the galvanized layer 32. The conductivity of the galvanized layer 32 is better than that of the alloy iron body 31.

[0033] The sensing component 6 includes a sensing diaphragm layer 61, a mounting bracket 62 fixedly connected to the top of the sensing diaphragm layer 61, a vibrating diaphragm layer 63 fixedly connected to the top of the mounting bracket 62, a closed conductor 64 fixedly connected to the outer side of the vibrating diaphragm layer 63, a second spring 65 fixedly connected to the inner wall of the mounting housing 9, a piezoelectric crystal 66 fixedly connected to the bottom of the second spring 65, a negative varistor 67 fixedly connected inside the mounting housing 9, a first magnet 68 fixedly connected inside the mounting housing 9, a second magnet 69 fixedly connected inside the mounting housing 9, and a negative conductive rod 5 electrically connected to the negative varistor 67. Resistor 67 is electrically connected to piezoelectric crystal 66. When the grounding flat iron 3 is corroded, the zinc plating layer 32 is destroyed, and the negative conductive rod 5 comes into contact with the alloy iron body 31, causing the current through the negative conductive rod 5 to decrease. At this time, the working voltage of the negative varistor 67 is reached, the circuit is connected, and the piezoelectric crystal 66 is energized to produce the reverse piezoelectric effect and thus vibrate. The outer side of the closed conductor 64 is movably connected between the first magnet 68 and the second magnet 69. The vibrating diaphragm 63 drives the closed conductor 64 to vibrate, so that the closed conductor 64 cuts the magnetic field lines between the first magnet 68 and the second magnet 69 to generate current.

[0034] The anti-leakage component 7 includes a receiving groove 71, a storage bladder 72 fixedly connected inside the receiving groove 71, a magnetic pusher 73 fixedly connected to the outside of the storage bladder 72, a third spring 74 fixedly connected to the outside of the magnetic pusher 73, an electromagnet 75 fixedly connected inside the mounting housing 9, an epoxy coal tar pitch filled inside the storage bladder 72, and a liquid outlet fixedly connected inside the storage bladder 72. By squeezing the storage bladder 72 with the magnetic pusher 73, the epoxy coal tar pitch is squeezed out, thereby wrapping the grounding flat iron 3 to prevent leakage. A closed conductor 64 is electrically connected to the electromagnet 75. The electromagnet 75 and the magnetic pusher 73 have opposite magnetic properties. The current generated by the closed conductor 64 makes the electromagnet 75 energized and magnetic, and a repulsive force is generated between the electromagnet 75 and the magnetic pusher 73.

[0035] Working principle: When the grounding flat iron 3 is corroded, the zinc plating layer 32 is damaged. The conductivity of the zinc plating layer 32 is better than that of the alloy iron body 31. The negative conductive rod 5 comes into contact with the alloy iron body 31, which reduces the current passing through the negative conductive rod 5. At this time, the working voltage of the negative varistor 67 is reached, and the circuit is connected. This causes the piezoelectric crystal 66 to be energized and generate a reverse piezoelectric effect, which in turn generates vibration. This causes the vibrating diaphragm 63 to vibrate synchronously. When the vibrating diaphragm 63 vibrates, it drives the closed conductor 64 to cut the magnetic field lines between the first magnet 68 and the second magnet 69 to generate current. The current generated by the closed conductor 64 makes the electromagnet 75 energized and magnetic. The electromagnet 75 and the magnet push block 73 generate a repulsive force. The magnet push block 73 squeezes the storage bag 72, squeezing out the epoxy coal tar pitch, thereby wrapping the grounding flat iron 3 to prevent leakage.

[0036] When the grounding flat iron 3 corrodes further, the sensing membrane 61 expands, causing the mounting bracket 62 to deform and tighten the vibrating membrane 63, increasing its natural frequency. This strengthens the vibration frequency of the vibrating membrane 63. The closed conductor 64 is electrically connected to the positive varistor, which is then electrically connected to the alarm 8. As the current generated by the closed conductor 64 increases, the circuit is connected, causing the alarm 8 to issue an alarm notification.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ground equipment for a distribution station of a solar photovoltaic system capable of preventing electric leakage, comprising a mounting case (9) and a mounting plate (1), characterized in that: The mounting plate (1) is fixedly connected to the top of a first spring (2), the first spring (2) is fixedly connected to the top of a grounding flat iron (3), the mounting plate (1) is fixedly connected to the top of a positive conductive rod (4), the mounting plate (1) is fixedly connected to the top of a negative conductive rod (5), the grounding flat iron (3) is fixedly connected to the top of a sensing component (6), the mounting housing (9) is fixedly connected to the inside of a leakage protection component (7), and the mounting housing (9) is fixedly connected to the outside of an alarm (8). The grounding flat iron (3) includes an alloy iron body (31), and a galvanized layer (32) is fixedly connected to the outside of the alloy iron body (31). The tops of the positive conductive rod (4) and the negative conductive rod (5) are movably connected to the bottom of the galvanized layer (32). The sensing component (6) includes a sensing film layer (61), a mounting bracket (62) fixedly connected to the top of the sensing film layer (61), a vibrating film layer (63) fixedly connected to the top of the mounting bracket (62), a closed conductor (64) fixedly connected to the outside of the vibrating film layer (63), a second spring (65) fixedly connected to the inner wall of the mounting housing (9), a piezoelectric crystal (66) fixedly connected to the bottom of the second spring (65), a negative varistor (67) fixedly connected inside the mounting housing (9), a first magnet (68) fixedly connected inside the mounting housing (9), and a second magnet (69) fixedly connected inside the mounting housing (9). The negative conductive rod (5) is electrically connected to the negative varistor (67), and the negative varistor (67) is electrically connected to the piezoelectric crystal (66); The leakage protection component (7) includes a receiving groove (71), a storage bladder (72) is fixedly connected inside the receiving groove (71), a magnetic push block (73) is fixedly connected outside the storage bladder (72), a third spring (74) is fixedly connected outside the magnetic push block (73), and an electromagnet (75) is fixedly connected inside the mounting housing (9).

2. The ground equipment for a power distribution station of a solar photovoltaic system capable of preventing electric leakage according to claim 1, characterized in that: The closed conductor (64) is movably connected on the outside between the first magnet (68) and the second magnet (69).

3. The ground equipment of the distribution station for the solar photoelectric system capable of preventing electric leakage according to claim 2, characterized in that: The storage bladder (72) is filled with epoxy coal tar pitch, and a liquid outlet is fixedly connected inside the storage bladder (72).

4. The ground equipment for a power distribution station of a solar photovoltaic system capable of preventing electric leakage according to claim 2, characterized in that: The closed conductor (64) is electrically connected to the electromagnet (75), and the electromagnet (75) and the corresponding surface of the magnet push block (73) have opposite magnetic properties.

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