Semiconductor lightning arrester for strong current

Abstract

The utility model relates to the technical field of semiconductor lightning arresters, in particular to a semiconductor lightning arrester for strong current. The lower end of the aluminum end cover on the lower side is fixedly connected with an installation screw rod, the upper end of the aluminum end cover is provided with an auxiliary installation assembly, a zinc oxide resistor disc is arranged between the two aluminum end covers, glass fibers are arranged on the arc surfaces of the aluminum end covers, resin wires are arranged on the arc surfaces of the glass fibers, and the resin wires are arranged on the arc surfaces of the glass fibers. The arc surface of the aluminum end cover is provided with an organic silicon rubber case, and the auxiliary mounting assembly comprises a plurality of uniformly distributed sliding blocks which are inserted into the upper end of the aluminum end cover in a sliding manner, so that the problems that the aluminum end cover needs to be rotated due to the fact that a plurality of glass fibers are placed on the aluminum end cover, and the glass fibers are damaged when the glass fibers rotate are solved; the glass fiber may fall off from the aluminum end cover due to self weight and rotating centrifugal force, and generally, a worker holds the glass fiber with hands to rotate, so that the assembling efficiency of the semiconductor lightning arrester may be indirectly influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor lightning arresters, in particular to a semiconductor lightning arrester for strong electricity. Background Art

[0002] Semiconductor lightning arresters are used to protect high-voltage electrical equipment from high transient overvoltage hazards. Semiconductor lightning arresters are composed of two aluminum end caps, zinc oxide resistors, glass fibers, fixing screws, resin wires, and silicone sleeves. When assembling the semiconductor lightning arrester, place the two aluminum end caps in the assembly slot, and then place multiple zinc oxide resistors on the two aluminum end caps. Zinc oxide is one of the semiconductor materials. Then place the ring-shaped glass fiber on the aluminum end caps, and then tighten the glass fiber and resistors through the fixing screws on the aluminum end caps, and then wind the resin wire. The silicone is best placed by reverse molding. The rubber sleeve is fixed to the zinc oxide resistor. When the semiconductor lightning arrester protects the electrical equipment in the strong current from high transient overvoltage (such as lightning, etc.), under normal working voltage, the zinc oxide resistor is in a high resistance state, which is equivalent to an insulator. When transient overvoltages such as lightning overvoltage or operating overvoltage act on the lightning arrester, the resistance of the zinc oxide valve plate will drop rapidly and become a low resistance state, so that the current can quickly flow into the earth through the lightning arrester, thereby limiting the amplitude of the overvoltage and protecting the electrical equipment. At the same time, after the overvoltage disappears, the power frequency follow-up can be quickly cut off to restore the normal operation of the system.

[0003] The inventor discovered in his daily work that when assembling a semiconductor lightning arrester, since multiple glass fibers are placed on an aluminum end cap, the aluminum end cap needs to be rotated. When the glass fibers rotate, they may fall off the aluminum end cap due to their own weight and the centrifugal force of rotation. Generally, workers hold the glass fibers by hand to rotate them, which may indirectly affect the assembly efficiency of the semiconductor lightning arrester. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that in actual use, since multiple glass fibers are placed on the aluminum end cover, the aluminum end cover needs to be rotated, so that when the glass fibers are rotated, they may fall off the aluminum end cover due to their own weight and rotational centrifugal force, and workers usually rotate the glass fibers by hand, which may indirectly affect the assembly efficiency of the semiconductor lightning arrester. A semiconductor lightning arrester for high-voltage power is proposed to solve the problem.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a semiconductor lightning arrester for high-voltage power, comprising two aluminum end covers, the lower end of the lower aluminum end cover is fixedly connected with a mounting screw, the upper end of the aluminum end cover is provided with an auxiliary mounting assembly, a zinc oxide resistor is provided between the two aluminum end covers, the arc surface of the aluminum end cover is provided with glass fiber, the arc surface of the glass fiber is provided with a resin wire, the arc surface of the aluminum end cover is provided with an organic silicone sleeve, the auxiliary mounting assembly comprises a plurality of evenly distributed sliders slidably inserted in the upper end of the aluminum end cover, the slider is in extrusion contact with the glass fiber, and a spring is fixedly connected between the slider and the aluminum end cover.

[0006] The effect achieved by the above components is: by setting an auxiliary installation component, when the glass fiber is placed on the aluminum end cover, the slider is pressed to retract it into the aluminum end cover, and then the glass fiber is placed in the groove on the aluminum end cover, the slider is loosened, and the slider is reset under the reset of spring 1, so that the slider is squeezed into contact with the glass fiber for limiting, thereby achieving the effect of preventing the glass fiber from falling when rotating as much as possible.

[0007] Preferably, a positioning rod is slidably inserted into the inner wall of the aluminum end cover, and a positioning groove is formed on the arc surface of the sliding block.

[0008] The effects achieved by the above components are: the slider is pressed to be retracted into the aluminum end cover, and then the positioning rod is snapped into the positioning groove to limit the slider.

[0009] Preferably, the right end of the positioning rod is fixedly connected to a second spring, and the other end of the second spring is fixed to an aluminum end cover.

[0010] The effect achieved by the above components is: the positioning rod is reset by setting the second spring.

[0011] Preferably, a pull rope is fixedly connected to the right end of the positioning rod, and the pull rope passes through the aluminum end cover.

[0012] The effect achieved by the above components is: by pulling the pull rope, the positioning rod is retracted into the aluminum end cover and reset under the action of spring 1.

[0013] Preferably, the arc surface of the organic silicone sleeve is provided with a pre-fixing component, and the pre-fixing component includes semicircular covers arranged on both sides of the arc surface of the organic silicone sleeve, bolts are slidably inserted between the two semicircular covers, and the lower end of the semicircular cover is fixedly connected to an L-shaped plate.

[0014] The effect achieved by the above components is: when the semiconductor lightning arrester needs to be installed on a utility pole, the screw is inserted into the mounting hole on the utility pole, and the two semicircular covers are fixed to the arc surface of the silicone sleeve by bolts, so that the L-shaped plate is stuck on the utility pole, thereby assisting in fixing the semiconductor lightning arrester.

[0015] Preferably, a screw rod is threadedly inserted into the lower end of the L-shaped plate.

[0016] The effect achieved by the above components is: by twisting the screw rod, it is squeezed to the bottom of the electric pole, thereby assisting in fixing the semiconductor lightning arrester.

[0017] Preferably, the upper end of the screw rod is rotatably connected to an extrusion plate, and the lower end of the extrusion plate is fixedly connected to a limiting rod.

[0018] The effect achieved by the above components is: by twisting the screw rod, the limiting rod is squeezed to the bottom of the pole under the action of the limiting rod, thereby assisting in fixing the semiconductor lightning arrester.

[0019] Preferably, the limiting rod is slidably inserted on one side of the L-shaped plate, and an anti-slip protrusion is provided on the upper end of the extrusion plate.

[0020] The effect achieved by the above components is: by arranging the anti-slip protrusions, the friction between the extrusion plate and the electric pole is increased.

[0021] In summary, the beneficial effects of the utility model are:

[0022] In the utility model, an auxiliary installation component is provided, and when the glass fiber is placed on the aluminum end cover, the slider is pressed to retract it into the aluminum end cover, and then the glass fiber is placed in the groove on the aluminum end cover, and the slider is loosened. Under the reset of spring one, the slider is reset, so that the slider is squeezed into contact with the glass fiber for limiting, thereby achieving the effect of preventing the glass fiber from falling off when rotating as much as possible. This solves the problem that since a plurality of glass fibers are placed on the aluminum end cover, it is necessary to rotate the aluminum end cover, so that when the glass fiber rotates, it may fall off the aluminum end cover due to its own weight and the centrifugal force of rotation. Generally, the worker rotates the glass fiber by hand, which may indirectly affect the assembly efficiency of the semiconductor lightning arrester. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure inside the utility model;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the cross section of the auxiliary installation component of the utility model;

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the pre-fixed component of the utility model.

[0027] Legend: 1. Aluminum end cap; 2. Auxiliary installation assembly; 3. Pre-fixing assembly; 4. Mounting screw; 5. Zinc oxide resistor; 6. Glass fiber; 7. Resin wire; 8. Silicone sleeve; 21. Slider; 22. Spring 1; 23. Positioning rod; 24. Positioning groove; 25. Pull rope; 26. Spring 2; 31. Semicircular cover; 32. Bolt; 33. L-shaped plate; 34. Extrusion plate; 35. Limit rod; 36. Screw. DETAILED DESCRIPTION

[0028] Reference Figure 1 and Figure 2 As shown, the utility model provides a technical solution: a semiconductor lightning arrester for high-voltage power includes two aluminum end covers 1, the lower end of the lower aluminum end cover 1 is fixedly connected with a mounting screw 4, the upper end of the aluminum end cover 1 is provided with an auxiliary mounting assembly 2, a zinc oxide resistor 5 is provided between the two aluminum end covers 1, the arc surface of the aluminum end cover 1 is provided with glass fiber 6, the arc surface of the glass fiber 6 is provided with a resin wire 7, and the arc surface of the aluminum end cover 1 is provided with an organic silicone sleeve 8.

[0029] Reference Figure 3 As shown, in this embodiment: the auxiliary installation component 2 includes a plurality of evenly distributed sliders 21 slidably inserted on the upper end of the aluminum end cover 1, the slider 21 is pressed and contacted with the glass fiber 6, and a spring 22 is fixedly connected between the slider 21 and the aluminum end cover 1. By setting the auxiliary installation component 2, when the glass fiber 6 is placed on the aluminum end cover 1, the slider 21 is pressed to be retracted into the aluminum end cover 1, and then the glass fiber 6 is placed in the groove on the aluminum end cover 1, and the slider 21 is loosened. Under the reset of the spring 22, the slider 21 is reset, so that the slider 21 is pressed and contacted with the glass fiber 6 for limiting, thereby preventing the glass fiber 6 from rotating as much as possible. In order to prevent the aluminum end cover 1 from falling, a positioning rod 23 is slidably inserted into the inner wall of the aluminum end cover 1, and a positioning groove 24 is opened on the arc surface of the slider 21. The slider 21 is pressed to retract it into the aluminum end cover 1, and then the positioning rod 23 is snapped into the positioning groove 24, thereby limiting the slider 21. The right end of the positioning rod 23 is fixedly connected with a spring 26, and the other end of the spring 26 is fixed to the aluminum end cover 1. The positioning rod 23 is reset by setting the spring 26. The right end of the positioning rod 23 is fixedly connected with a pull rope 25, and the pull rope 25 passes through the aluminum end cover 1. By pulling the pull rope 25, the positioning rod 23 is retracted into the aluminum end cover 1 and reset under the action of the spring 1 22.

[0030] Reference Figure 4As shown, in this embodiment: the arc surface of the organic silicone sleeve 8 is provided with a pre-fixing component 3, the pre-fixing component 3 includes semicircular covers 31 arranged on both sides of the arc surface of the organic silicone sleeve 8, a bolt 32 is slidably inserted between the two semicircular covers 31, and the lower end of the semicircular cover 31 is fixedly connected with an L-shaped plate 33. When the semiconductor lightning arrester needs to be installed on the electric pole, the screw is inserted into the mounting hole on the electric pole, and the two semicircular covers 31 are fixed to the arc surface of the organic silicone sleeve 8 by the bolts 32, so that the L-shaped plate 33 is stuck on the electric pole, thereby auxiliary fixation of the semiconductor lightning arrester, L A screw rod 36 is threadedly inserted at the lower end of the L-shaped plate 33. By turning the screw rod 36, it is squeezed to the bottom of the pole, thereby assisting in fixing the semiconductor lightning arrester. The upper end of the screw rod 36 is rotatably connected to the extrusion plate 34. The lower end of the extrusion plate 34 is fixedly connected to a limiting rod 35. By turning the screw rod 36, the limiting rod 35 is squeezed to the bottom of the pole under the action of the limiting rod 35, thereby assisting in fixing the semiconductor lightning arrester. The limiting rod 35 is slidably inserted on one side of the L-shaped plate 33. The upper end of the extrusion plate 34 is provided with an anti-slip protrusion. By providing the anti-slip protrusion, the friction between the extrusion plate 34 and the pole is increased.

[0031] Working principle:

[0032] When assembling the semiconductor lightning arrester, two aluminum end caps 1 are placed in the assembly groove, and then a plurality of zinc oxide resistors 5 are placed on the two aluminum end caps 1. Zinc oxide is one of the semiconductor materials. Then, a ring-shaped glass fiber 6 is placed on the aluminum end caps 1. Then, the glass fiber 6 and the resistor are tightened by the fixing screws on the aluminum end caps 1. Then, the resin wire 7 is wound, and finally, the organic silicone sleeve 8 is fixed to the zinc oxide resistor 5 by reverse molding. When the semiconductor lightning arrester protects the electrical equipment in the strong current from high transient overvoltage (such as lightning, etc.), it is normal in operation. Under the operating voltage, the zinc oxide resistor 5 is in a high resistance state, which is equivalent to an insulator. When a transient overvoltage such as a lightning overvoltage or an operating overvoltage acts on the arrester, the resistance of the zinc oxide valve plate will drop rapidly and become a low resistance state, so that the current can quickly flow into the earth through the arrester, thereby limiting the amplitude of the overvoltage and protecting the electrical equipment. At the same time, after the overvoltage disappears, the power frequency continuous current can be quickly cut off to restore the normal operation of the system. When the glass fiber 6 is placed on the aluminum end cap 1, the slider 21 is pressed to retract it into the aluminum end cap 1, and then the glass fiber The fiberglass 6 is placed in the groove on the aluminum end cover 1, and the slider 21 is loosened. Under the reset of the spring 1 22, the slider 21 is reset, so that the slider 21 is squeezed and contacted with the glass fiber 6 for limiting, thereby preventing the glass fiber 6 from falling when rotating as much as possible. The slider 21 is pressed to be retracted into the aluminum end cover 1, and then the positioning rod 23 is inserted into the positioning groove 24, thereby limiting the slider 21. By setting the spring 26, the positioning rod 23 is reset, and the pull rope 25 is pulled to retract the positioning rod 23 into the aluminum end cover 1. The semiconductor lightning arrester is reset under the action of one 22. When the semiconductor lightning arrester needs to be installed on the electric pole, the installation screw 4 is inserted into the installation hole on the electric pole, and the two semicircular covers 31 are fixed to the arc surface of the organic silicone sleeve 8 by bolts 32, so that the L-shaped plate 33 is stuck on the electric pole, thereby assisting in fixing the semiconductor lightning arrester, and the screw rod 36 is turned. Under the action of the limit rod 35, the limit rod 35 is squeezed to the bottom of the electric pole, thereby assisting in fixing the semiconductor lightning arrester. By setting the anti-slip protrusion, the friction between the extrusion plate 34 and the electric pole is increased.

[0033] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.

Claims

1. A semiconductor lightning arrester for high-voltage power, comprising two aluminum end covers (1), characterized in that: The lower end of the lower aluminum end cover (1) is fixedly connected to a mounting screw (4), the upper end of the aluminum end cover (1) is provided with an auxiliary mounting assembly (2), a zinc oxide resistor (5) is provided between the two aluminum end covers (1), the arc surface of the aluminum end cover (1) is provided with glass fiber (6), the arc surface of the glass fiber (6) is provided with a resin wire (7), the arc surface of the aluminum end cover (1) is provided with an organic silicone sleeve (8), the auxiliary mounting assembly (2) comprises a plurality of evenly distributed sliders (21) slidably inserted in the upper end of the aluminum end cover (1), the sliders (21) are in extrusion contact with the glass fiber (6), and a spring (22) is fixedly connected between the slider (21) and the aluminum end cover (1).

2. A semiconductor lightning arrester for high power according to claim 1, characterized in that: A positioning rod (23) is slidably inserted into the inner wall of the aluminum end cover (1), and a positioning groove (24) is provided on the arc surface of the sliding block (21).

3. A semiconductor lightning arrester for high power according to claim 2, characterized in that: The right end of the positioning rod (23) is fixedly connected to a second spring (26), and the other end of the second spring (26) is fixed to the aluminum end cover (1).

4. A semiconductor lightning arrester for high power according to claim 3, characterized in that: The right end of the positioning rod (23) is fixedly connected with a pull rope (25), and the pull rope (25) passes through the aluminum end cover (1).

5. A semiconductor lightning arrester for high power according to claim 4, characterized in that: The arc surface of the organic silicone sleeve (8) is provided with a pre-fixing assembly (3), and the pre-fixing assembly (3) comprises semicircular covers (31) arranged on both sides of the arc surface of the organic silicone sleeve (8), a bolt (32) is slidably inserted between the two semicircular covers (31), and the lower end of the semicircular cover (31) is fixedly connected with an L-shaped plate (33).

6. A semiconductor lightning arrester for high power according to claim 5, characterized in that: A screw rod (36) is threadedly inserted into the lower end of the L-shaped plate (33).

7. A semiconductor lightning arrester for high power according to claim 6, characterized in that: The upper end of the screw rod (36) is rotatably connected to a squeezing plate (34), and the lower end of the squeezing plate (34) is fixedly connected to a limiting rod (35).

8. A semiconductor lightning arrester for high power according to claim 7, characterized in that: The limiting rod (35) is slidably inserted on one side of the L-shaped plate (33), and an anti-slip protrusion is arranged on the upper end of the pressing plate (34).

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