Photovoltaic system DC power supply lightning protection device

Abstract

The utility model relates to the technical field of lightning protection devices, and discloses a photovoltaic system DC power supply lightning protection device, which comprises a mounting plate, a clamping strip and a lightning protection device main body, the clamping strip is fixedly mounted on the front surface of the mounting plate, and a mounting mechanism is arranged between the lightning protection device main body and the clamping strip; the mounting mechanism comprises a clamping groove, a limiting plate and a sliding plate, by arranging the mounting mechanism, a worker can conveniently and directly disassemble the lightning protection device body from the front face of the clamping strip, the disassembly difficulty is reduced, and therefore the maintenance efficiency of the worker is improved; the problems that most of existing lightning protection device bodies slide in from the side of a clamping strip in a power box through a clamping groove in the rear side to achieve installation, consequently, the lightning protection device bodies need to slide out from the side edge in the disassembly process, and after electrical elements in the power box are all installed, the movable space in the power box is small, and installation is not convenient are solved. Therefore, the lightning protection device is difficult to slide out from the side of the clamping strip, the operation is inconvenient, and the disassembly and maintenance efficiency of the lightning protection device by personnel is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to lightning protection device technical field, concretely is a photovoltaic system DC power lightning protection device. BACKGROUND

[0002] With the popularization of new energy, the lightning protection of photovoltaic system equipment becomes more and more important, the influence of lightning on photovoltaic power generation system equipment mainly includes direct lightning and induction lightning, direct lightning can cause the damage of photovoltaic power generation square, and induction lightning can produce surge overvoltage in photovoltaic equipment and subsequent power transformation line, and damage electrical equipment, so it is necessary to install lightning protection device in the power box connected with photovoltaic system for lightning protection.

[0003] The existing lightning protection device main part is usually installed by being clamped from the rear side slot into the power box from the side, so that it needs to be slid out from the side when disassembling, and when all electrical elements in the power box are installed, the movable space in the power box is small, so that it is difficult to slide out the lightning protection device from the side of the clamping strip, and the operation is inconvenient, thereby affecting the disassembly and maintenance efficiency of the lightning protection device, therefore, the utility model provides a photovoltaic system DC power lightning protection device. UTILITY MODEL CONTENTS

[0004] The utility model discloses a photovoltaic system DC power lightning protection device, solve the problem in prior art.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a photovoltaic system DC power lightning protection device, including installation board, clamping strip and lightning protection device main part, the clamping strip is fixedly installed at the front of installation board, be provided with installation mechanism between lightning protection device main part and clamping strip;

[0006] The installation mechanism includes a clamping groove, a limiting plate and a sliding plate, the clamping groove is opened in the back of the lightning protection device main part, the lightning protection device main part is clamped on the clamping strip through the clamping groove, a contraction groove is opened at the top end of the inner wall of the clamping groove, the limiting plate is inserted in the contraction groove, the limiting plate is clamped at the top end of the clamping strip, a moving groove is opened at the top end of the lightning protection device main part, a sliding groove is opened at the bottom end of the inner wall of the moving groove, the sliding plate is slidably connected with the sliding groove, a connecting rope is fixedly connected between the top end of the limiting plate and the back of the sliding plate, a rope groove is communicated and opened between the inner wall of the sliding groove and the contraction groove, the connecting rope is movably penetrated through the rope groove, a second spring is fixedly installed between the top end of the limiting plate and the top end of the inner wall of the contraction groove, a pull plate is fixedly installed at the top end of the sliding plate, and the pull plate is movably penetrated through the moving groove.

[0007] Preferably, the second spring is around the connecting rope, and the material of the connecting rope is nylon, which can greatly improve the wear resistance of the connecting rope.

[0008] Preferably, the limiting plate is matched with the contraction groove, and the sliding plate is matched with the sliding groove.

[0009] Preferably, the clamping groove is provided with a pressing plate, the front surface of the pressing plate is fixedly installed with a limiting rod, the inner wall of the clamping groove is provided with a rod groove, the limiting rod is inserted into the rod groove, the outer wall of the limiting rod is surrounded by a spring, the spring is fixedly installed between the inner walls of the front surface of the pressing plate, and the two sides of the pressing plate are fixedly installed with Z-shaped push plates.

[0010] Preferably, the number of the limiting rods and the rod grooves is four, and the limiting rods are matched with the rod grooves.

[0011] Preferably, the back surface of the pressing plate is fixedly installed with a pressing pad, and the pressing pad is tightly attached to the front surface of the clamping strip.

[0012] The utility model provides a photovoltaic system direct current source lightning protection device, and has the following beneficial effects:

[0013] (1) the photovoltaic system direct current source lightning protection device, through setting installation mechanism, can be convenient for personnel directly from the front surface of the clamping strip with lightning protection device main body dismounting, reduces the difficulty of dismounting, thereby improves the maintenance efficiency of personnel, solves the lightning protection device main body of existing mostly through the clamping groove of rear side from the power box clamping strip side and slides into realization installation, leads to when dismounting also needs from the side and slides out, and when the power box inside electrical element is all installation completed, the power box inside movable space is small, leads to lightning protection device to think from the clamping strip side and slides out when more difficult, operation is inconvenient, thereby influences the dismounting maintenance efficiency of personnel to lightning protection device problem;

[0014] (2) the photovoltaic system direct current source lightning protection device, through the cooperation of pressing plate, pressing pad, limiting rod, spring and rod groove, can make the pressing plate press tightly on the front surface of the clamping strip, make the pressing pad tightly attach on the front surface of the clamping strip, thereby can greatly improve the stability of lightning protection device main body after installation, and through pulling the push plate, can make the push plate drive the pressing plate and the pressing pad and separate the clamping strip, thereby convenient for personnel to adjust the installation position of lightning protection device main body, simple structure, strong practicality. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the front cross section structure schematic diagram of the utility model;

[0017] Figure 3This is a schematic diagram showing the disassembly structure of the pressure plate and the main body of the surge protector of this utility model;

[0018] Figure 4 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0019] Figure 5 This utility model Figure 3 Enlarged structural diagram of section B.

[0020] In the diagram: 1. Mounting plate; 2. Clamping strip; 3. Lightning arrester body; 4. Mounting mechanism; 5. Pressure plate; 6. Pressure pad; 7. Z-shaped lever; 8. Limiting rod; 9. Spring 1; 10. Rod groove; 401. Clamping groove; 402. Limiting plate; 403. Contraction groove; 404. Spring 2; 405. Connecting rope; 406. Rope groove; 407. Slide plate; 408. Slide groove; 409. Pull plate; 410. Moving groove. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0024] A preferred embodiment of the photovoltaic system DC power supply surge protector provided by this utility model is, for example... Figures 1 to 5The photovoltaic system direct-current power lightning protector shown in the figure comprises a mounting plate 1, a clamping strip 2 and a lightning protector main body 3, the clamping strip 2 is fixedly installed on the front face of the mounting plate 1, and a mounting mechanism 4 is arranged between the lightning protector main body 3 and the clamping strip 2;

[0025] The mounting mechanism 4 comprises a clamping groove 401, a limiting plate 402 and a sliding plate 407, the clamping groove 401 is formed in the back face of the lightning protector main body 3, the lightning protector main body 3 is clamped on the clamping strip 2 through the clamping groove 401, a contraction groove 403 is formed in the top end of the inner wall of the clamping groove 401, the limiting plate 402 is inserted into the contraction groove 403, the limiting plate 402 is clamped on the top end of the clamping strip 2, a moving groove 410 is formed in the top end of the lightning protector main body 3, a sliding groove 408 is formed in the bottom end of the inner wall of the moving groove 410, the sliding plate 407 is slidably connected with the sliding groove 408, a connecting rope 405 is fixedly connected between the top end of the limiting plate 402 and the back face of the sliding plate 407, a rope groove 406 is formed in communication between the inner wall of the sliding groove 408 and the contraction groove 403, the connecting rope 405 is movably penetrated through the rope groove 406, a spring 404 is fixedly installed between the top end of the limiting plate 402 and the top end of the inner wall of the contraction groove 403, and a pulling plate 409 is fixedly installed on the top end of the sliding plate 407 and movably penetrates through the moving groove 410.

[0026] In the above technical scheme, when the photovoltaic system direct-current power lightning protector needs to be disassembled and maintained, the pulling plate 409 can be pulled outward, the pulling plate 409 drives the sliding plate 407 to slide in the sliding groove 408, the sliding plate 407 drives the limiting plate 402 to move upward through the connecting rope 405, the limiting plate 402 is contracted into the contraction groove 403, the limiting plate 402 compresses the spring 404, the limiting plate 402 is no longer clamped on the top end of the clamping strip 2, and the lightning protector main body 3 is no longer limited, at this time, the lightning protector main body 3 can be directly moved outward, the lightning protector main body 3 is separated from the clamping strip 2, the disassembly of the lightning protector main body 3 is completed, through the above structure, the lightning protector main body 3 can be directly disassembled from the front face of the clamping strip 2 by the personnel, the disassembly difficulty is reduced, and the maintenance efficiency of the personnel is improved.

[0027] Further, the spring 404 surrounds the outside of the connecting rope 405, and the material of the connecting rope 405 is nylon;

[0028] The material of the connecting rope 405 is nylon, and the wear resistance of the connecting rope 405 can be greatly improved.

[0029] Further, the limiting plate 402 is matched with the contraction groove 403, and the sliding plate 407 is matched with the sliding groove 408. Embodiment

[0030] On the basis of the embodiment one, the photovoltaic system direct-current power lightning protector provided by the utility model has a preferable embodiment as follows Figures 1 to 5As shown: the clamping groove 401 is provided with a pressing plate 5, the pressing plate 5 is fixedly installed with a limiting rod 8 on the front surface, the inner wall of the clamping groove 401 is provided with a rod groove 10, the limiting rod 8 is inserted in the rod groove 10, the outer wall of the limiting rod 8 is surrounded by a spring 9, the spring 9 is fixedly installed between the inner wall of the clamping groove 401 on the front surface of the pressing plate 5, and the Z-shaped push plate 7 is fixedly installed on both sides of the pressing plate 5.

[0031] The technical scheme is specifically that when the lightning protection device main body 3 is installed, the pressing plate 5 is pressed against the front surface of the clamping strip 2 under the reaction force of the spring 9, the pressing pad 6 is tightly attached to the front surface of the clamping strip 2, the stability of the lightning protection device main body 3 after installation can be greatly improved, the push plate can drive the pressing plate 5 and the pressing pad 6 to be separated from the clamping strip 2 by pulling the push plate, the installation position of the lightning protection device main body 3 can be adjusted by personnel, the structure is simple, and the practicality is high.

[0032] Further, the number of the limiting rod 8 and the rod groove 10 is four, and the limiting rod 8 and the rod groove 10 are matched;

[0033] The limiting rod 8 can limit the pressing plate 5 and the spring 9, and the stability of the pressing plate 5 and the spring 9 during compression can be ensured.

[0034] Further, the pressing plate 5 is fixedly installed with a pressing pad 6 on the back surface, and the pressing pad 6 is tightly attached to the front surface of the clamping strip 2.

[0035] The pressing pad 6 can increase the friction between the pressing plate 5 and the clamping strip 2, and the material of the pressing pad 6 is PVC soft rubber.

[0036] The embodiments of the utility model are given for example and description, and are not exhaustive or limit the utility model to the disclosed forms. Many modifications and changes are obvious to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical application of the utility model, and to enable those skilled in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A lightning protection device for a direct current power supply of a photovoltaic system, comprising a mounting plate (1), a clamping strip (2) and a lightning protection device main body (3), characterized in that: The clamping strip (2) is fixedly installed on the front surface of the mounting plate (1), and the lightning protection device body (3) is provided with a mounting mechanism (4) between the clamping strip (2). The mounting mechanism (4) comprises a clamping groove (401), a limiting plate (402) and a sliding plate (407), the clamping groove (401) is formed on the back surface of the lightning protection device body (3), the lightning protection device body (3) is clamped on the clamping strip (2) through the clamping groove (401), a contraction groove (403) is formed on the inner wall top end of the clamping groove (401), the limiting plate (402) is inserted into the contraction groove (403), the limiting plate (402) is clamped on the top end of the clamping strip (2), a moving groove (410) is formed on the top end of the lightning protection device body (3), a sliding groove (408) is formed on the inner wall bottom end of the moving groove (410), the sliding plate (407) is slidably connected with the sliding groove (408), a connecting rope (405) is fixedly connected between the top end of the limiting plate (402) and the back surface of the sliding plate (407), a rope groove (406) is formed in communication between the inner wall of the sliding groove (408) and the contraction groove (403), the connecting rope (405) is movably penetrated through the rope groove (406), a second spring (404) is fixedly installed between the top end of the limiting plate (402) and the inner wall top end of the contraction groove (403), and a pull plate (409) is fixedly installed on the top end of the sliding plate (407).

2. A lightning protector for a photovoltaic system DC power supply according to claim 1, characterized in that: The second spring (404) surrounds the outside of the connecting rope (405), and the material of the connecting rope (405) is nylon.

3. A lightning protector for a photovoltaic system DC power supply according to claim 1, characterized in that: The limiting plate (402) is matched with the contraction groove (403), and the sliding plate (407) is matched with the sliding groove (408).

4. A lightning protector for a photovoltaic system DC power supply according to claim 1, characterized in that: A pressing plate (5) is arranged in the clamping groove (401), a limiting rod (8) is fixedly installed on the front surface of the pressing plate (5), a rod groove (10) is formed on the inner wall of the clamping groove (401), the limiting rod (8) is inserted into the rod groove (10), a first spring (9) surrounds the outer wall of the limiting rod (8), the first spring (9) is fixedly installed between the inner wall of the clamping groove (401) on the front surface of the pressing plate (5), and Z-shaped pull plates (7) are fixedly installed on the two sides of the pressing plate (5).

5. A lightning protector for a photovoltaic system DC power supply according to claim 4, characterized in that: The number of the limiting rod (8) and the rod groove (10) is four, and the limiting rod (8) is matched with the rod groove (10).

6. A lightning protector for a photovoltaic system DC power supply according to claim 4, characterized in that: A pressing pad (6) is fixedly installed on the back surface of the pressing plate (5), and the pressing pad (6) is tightly attached to the front surface of the clamping strip (2).

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