Anti-interference protection device and method for power grid

Abstract

The invention relates to the technical field of power equipment, in particular to an anti-interference protection device and method for a power grid, and the device comprises an anti-interference protection box, a ventilation opening is formed in one side of the anti-interference protection box, a plurality of rotating wind plates are rotatably arranged in the ventilation opening, and a protection frame is fixedly arranged in the anti-interference protection box. The protection frame communicates with one side of the ventilation opening, and an arc-shaped guide plate is fixedly arranged in the center of the front face of the protection frame; according to the anti-interference protection device, dust is preliminarily blocked through the rotating air plate in the ventilation opening, air flows to the arc-shaped guide plate corresponding to the rotating air plate after being filtered, the arc-shaped guide plate changes the airflow direction, the air forms a bent path, and dust is easier to settle to the bottom of the protection frame under the action of gravity; the dust is further prevented from entering the anti-interference protection box, direct contact between the first ventilation hole and the second ventilation hole and the air is avoided, the dust entering amount of the ventilation holes is greatly reduced, and the blocking risk is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, and in particular to an anti-interference protection device and method for an electric power grid. Background Art

[0002] In the power grid system, the anti-interference protection box is a key device to ensure the normal operation of the equipment. The anti-interference protection box mainly uses materials with high conductivity and high magnetic permeability to achieve the anti-interference function. Its principle is based on the electromagnetic shielding theory. When the external electromagnetic wave radiates to the protection box, the metal material (such as copper, aluminum or its alloy) used in the box will use its own free electrons to reflect and absorb the electromagnetic wave. On the one hand, the free electrons on the metal surface generate induced current under the action of the electromagnetic wave electric field, and the induced current will form an electromagnetic field opposite to the external electromagnetic field, thereby realizing the reflection of the electromagnetic wave; on the other hand, after some electromagnetic waves enter the metal material, due to the high magnetic permeability and resistance characteristics of the material, the energy of the electromagnetic wave will be converted into heat energy and absorbed, thereby achieving the purpose of weakening or eliminating electromagnetic interference. However, in the design of traditional anti-interference protection boxes, the focus is often on the realization of this electromagnetic shielding function, but there are many deficiencies in ventilation and dust prevention.

[0003] In order to achieve heat dissipation of internal equipment, traditional anti-interference protection boxes are usually equipped with ventilation holes. However, this simple ventilation hole design has obvious defects in practical applications. Since the ventilation holes are in direct contact with the outside air, when the outside air enters the protection box, dust will enter unimpeded. After long-term accumulation, the dust will not only affect the heat dissipation efficiency of the equipment in the box, but may also cause equipment short circuit and other faults, reducing the reliability and service life of the equipment. Therefore, an anti-interference protection device and method for the power grid are needed to solve the above problems. Summary of the invention

[0004] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide an anti-interference protection device for a power grid.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an anti-interference protection device for an electric power grid, comprising an anti-interference protection box, a ventilation opening is provided on one side of the anti-interference protection box, a plurality of rotating wind plates are rotatably arranged inside the ventilation opening, a protection frame is fixedly arranged inside the anti-interference protection box, the protection frame is connected to one side of the ventilation opening, an arc guide plate is fixedly arranged at the front center of the protection frame, the arc guide plate corresponds to the plurality of rotating wind plates, a plurality of first ventilation holes are provided on the protection frame, a plurality of second ventilation holes are provided on both sides of the protection frame, and a scraper block is fixedly arranged on one of the rotating wind plates through a connecting rod.

[0007] As a preferred solution of the anti-interference protection device of the electric power grid of the present invention, wherein: a plurality of movable wheel sets are arranged on the lower surface of the anti-interference protection box, and a box door is arranged on the front side of the anti-interference protection box.

[0008] As a preferred solution of the anti-interference protection device for the electric power grid of the present invention, a circulation outlet is provided on one side of the anti-interference protection box, and the circulation outlet is connected to the bottom of the protection frame.

[0009] As a preferred solution of the anti-interference protection device of the power grid of the present invention, a plurality of anti-return blocks are fixedly arranged in the circulation outlet, and the shape of the anti-return blocks is arc-shaped.

[0010] As a preferred solution of the anti-interference protection device of the power grid of the present invention, an adjustment frame is rotatably provided on one side of the plurality of rotating wind plates, a threaded rod is rotatably provided on the adjustment frame, and a connecting block is fixedly provided on one side of the anti-interference protection box.

[0011] As a preferred solution of the anti-interference protection device of the electric power grid of the present invention, a sliding groove is provided inside the connecting block, and a sliding block is slidably provided inside the sliding groove.

[0012] As a preferred solution of the anti-interference protection device for the electric power grid of the present invention, the top end of the threaded rod is threadedly connected to the inside of the slider, and a turning handle is fixedly provided on the top end of the threaded rod.

[0013] The beneficial effects of the anti-interference protection device of the power grid of the present invention are as follows: the present invention preliminarily blocks dust through the rotating wind plate in the vent, and the air flows to the arc guide plate corresponding to the rotating wind plate after being filtered. The arc guide plate changes the direction of the airflow, so that the air forms a bending path, and the dust is more easily settled to the bottom of the protection frame under the action of gravity, and further prevents dust from entering the interior of the anti-interference protection box, avoiding direct contact between the first ventilation hole and the second ventilation hole and the air, greatly reducing the amount of dust entering the ventilation hole, and reducing the risk of blockage. At the same time, dust accumulates to the bottom of the protection frame at the bend due to inertia and gravity, and the scraper on the rotating wind plate can prevent dust from accumulating on the inner wall of the protection frame, effectively solving the problem that it is difficult to take both ventilation and dust prevention into consideration in traditional anti-interference protection boxes, and ensuring the stable operation of the equipment in the device.

[0014] The beneficial effects of the anti-interference protection device of the electric power grid of the present invention are as follows: when the dust at the bottom of the protection frame accumulates to a certain extent, it will affect its normal operation and ventilation effect. At this time, an external strong blowing device is used to align the air outlet with the ventilation port, and strong wind enters the protection frame through the ventilation port. Since the circulation outlet is connected to the bottom of the protection frame and the arc-shaped guide plate has a rebound guiding effect on the airflow, the wind can accurately act on the dust at the bottom. The arc-shaped design of the anti-return block can ensure that the dust is discharged smoothly through the circulation outlet, and prevent external dust from flowing back, thereby achieving effective cleaning of the dust inside the protection frame, maintaining good ventilation and dustproof performance of the entire device, and ensuring stable operation of the electric power grid equipment.

[0015] The beneficial effects of the anti-interference protection device for the electric power grid of the present invention are as follows: the rotating wind plate is controlled by the adjustment structure composed of the threaded rod, the slider, the connecting block and the turning handle, which has a significant effect. When the operator turns the turning handle, the threaded rod rotates accordingly, causing the slider to move in the slide groove of the connecting block, thereby driving the adjustment frame to change the angle of the rotating wind plate. This design can flexibly control the ventilation volume according to actual needs, increase the opening of the wind plate when ventilation needs to be strengthened, and reduce the opening when there is a lot of dust to enhance the dust prevention effect, so that the device can better adapt to different working environments and ensure the stable operation of power equipment.

[0016] In order to solve the above technical problems, the present invention also provides the following technical solutions: a method for using an anti-interference protection device for an electric power grid, comprising the anti-interference protection device for an electric power grid, comprising:

[0017] Air enters the vents on the side of the anti-interference protection box;

[0018] The air flows to the curved guide plate inside the protective frame;

[0019] The air enters the interior of the anti-interference protection box through a plurality of first ventilation holes opened on the protection frame and a plurality of second ventilation holes on both sides;

[0020] The scraper scrapes the inner wall of the protective frame;

[0021] Clean the dust accumulated at the bottom of the protective frame.

[0022] As a preferred scheme for the use of the anti-interference protection device of the power grid of the present invention, when air enters the vents on the side of the anti-interference protection box, the airflow will generate impact force on the rotating wind plate, and the rotating wind plate can play a role in initially blocking dust.

[0023] As a preferred scheme for the use of the anti-interference protection device of the power grid of the present invention, when the air hits the arc guide plate, the air will flow along the arc surface, and the dust carried will rebound at the arc guide plate, changing the movement trajectory of the dust through the arc guide plate, so that the dust settles to the bottom of the protective frame under the action of gravity.

[0024] The beneficial effects of the method for using the anti-interference protection device for the electric power grid of the present invention are as follows: the method can improve the ventilation effect and dustproof effect of the device, and is convenient for protecting the electric power equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the rear-view stereoscopic structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the anti-interference protection box of the present invention.

[0029] Figure 4 It is a schematic diagram of a cutaway three-dimensional structure of the protection frame of the present invention;

[0030] Figure 5 For the present invention Figure 2 A is a schematic diagram of the magnified three-dimensional structure;

[0031] Figure 6 For the present invention Figure 2 Schematic diagram of the enlarged three-dimensional structure at B in the middle.

[0032] In the figure: 1. Anti-interference protection box; 2. Ventilation port; 3. Rotating wind plate; 4. Protection frame; 5. Arc guide plate; 6. First ventilation hole; 7. Second ventilation hole; 8. Connecting rod; 9. Scraper block; 10. Moving wheel set; 11. Box door; 12. Circulation outlet; 13. Non-return block; 14. Adjustment frame; 15. Threaded rod; 16. Connecting block; 17. Slide groove; 18. Sliding block; 19. Turning handle. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0036] Example 1, reference Figures 1 to 6 , which is the first embodiment of the present invention, and provides an anti-interference protection device and method for an electric power grid, comprising an anti-interference protection box 1, a ventilation port 2 is provided on one side of the anti-interference protection box 1, a plurality of rotating wind plates 3 are rotatably arranged inside the ventilation port 2, a protection frame 4 is fixedly arranged inside the anti-interference protection box 1, the protection frame 4 is connected to one side of the ventilation port 2, an arc guide plate 5 is fixedly arranged at the front center of the protection frame 4, the arc guide plate 5 corresponds to the plurality of rotating wind plates 3, a plurality of first ventilation holes 6 are provided on the protection frame 4, a plurality of second ventilation holes 7 are provided on both sides of the protection frame 4, and a scraper block 9 is fixedly arranged on one of the rotating wind plates 3 through a connecting rod 8.

[0037] A plurality of moving wheel groups 10 are arranged on the lower surface of the anti-interference protection box 1 , and a box door 11 is arranged on the front surface of the anti-interference protection box 1 .

[0038] A circulation outlet 12 is provided on one side of the anti-interference protection box 1. The circulation outlet 12 is communicated with the bottom of the protection frame 4. A plurality of anti-return blocks 13 are fixedly provided in the circulation outlet 12. The anti-return blocks 13 are arc-shaped.

[0039] An adjusting frame 14 is rotatably provided on one side of the plurality of rotating air plates 3 , a threaded rod 15 is rotatably provided on the adjusting frame 14 , and a connecting block 16 is fixedly provided on one side of the anti-interference protection box 1 .

[0040] A sliding groove 17 is formed inside the connecting block 16 , and a sliding block 18 is slidably disposed inside the sliding groove 17 .

[0041] The top end of the threaded rod 15 penetrates through the thread and is connected to the inside of the slider 18 . A turning handle 19 is fixedly provided on the top end of the threaded rod 15 .

[0042] Example 2, reference Figure 1 to Figure 6 , which is the second embodiment of the present invention, is different from the previous embodiment in that this embodiment provides a method for an anti-interference protection device of a power grid, comprising the following steps:

[0043] S1. When the anti-interference protection device for the electric power grid starts to operate, the external air first contacts the vent 2 on the side of the anti-interference protection box 1. The vent 2 is the main channel for air to enter. A plurality of rotating wind plates 3 are arranged inside the vent. The airflow generates an impact force on the rotating wind plates 3. The rotating wind plates 3 can play a preliminary role in blocking dust, because some larger particles of dust will be intercepted or change their movement direction during the rotation of the wind plates, thereby reducing the amount of dust entering the protection frame 4;

[0044] S2. After passing through the rotating wind plate 3, the air flows to the arc guide plate 5 in the protection frame 4. The arc guide plate 5 is fixed at the front center of the protection frame 4. Its arc design can effectively guide the direction of air flow. When the air hits the arc guide plate 5, due to the arc structural characteristics, the air will flow along the arc surface, and the dust carried will rebound at the arc guide plate 5. The direction of dust rebound is mainly toward the bottom of the protection frame 4. This utilizes the principle of aerodynamics to change the movement trajectory of dust through the arc guide plate 5 instead of directly allowing the airflow to enter the anti-interference protection box 1, so that the dust is more easily settled to the bottom of the protection frame 4 under the action of gravity, further preventing dust from entering the inside of the anti-interference protection box 1;

[0045] S3. After the dust rebound process, the air enters the interior of the anti-interference protection box 1 through the multiple first ventilation holes 6 opened on the protection frame 4 and the multiple second ventilation holes 7 on both sides. The sizes and distributions of the first ventilation holes 6 and the second ventilation holes 7 are designed to prevent the remaining tiny dust particles from entering the box. At the same time, since the dust in the protection frame 4 has been mostly processed by the arc guide plate 5, the air entering the ventilation holes is relatively clean, thereby achieving effective dust prevention and ventilation functions;

[0046] S4. With the rotation of the rotating wind plate 3, the scraper block 9 fixedly connected by the connecting rod 8 will move synchronously. The function of the scraper block 9 is to scrape the inner wall of the protection frame 4 during the movement. During the air flow, although most of the dust will be rebounded to the bottom of the protection frame 4 by the arc guide plate 5, a small amount of dust may still adhere to the inner wall of the protection frame 4. Driven by the rotating wind plate 3, the scraper block 9 continuously cleans the inner wall of the protection frame 4 to ensure that too much dust will not accumulate on the inner wall, and prevent the dust from being lifted up again and entering the ventilation hole or the inside of the anti-interference protection box 1;

[0047] S5. When a certain amount of dust accumulates at the bottom of the protective frame 4, in order to ensure the normal operation and ventilation effect of the protective frame 4, the dust at the bottom needs to be cleaned. In this case, an external powerful blowing device can be started, and the air outlet of the blowing device is aligned with the vent 2. The strong wind force generated by the powerful blowing device will enter the interior of the protective frame 4 through the vent 2. Since the circulation outlet 12 is connected to the bottom of the protective frame 4, the wind force will directly act on the dust accumulated at the bottom of the protective frame 4 due to the rebound of the arc guide plate 5 and blow it out.

[0048] The rest of the structure is the same as that of Example 1.

[0049] The working principle and use process of the present invention are as follows: first, when the anti-interference protection device of the electric power grid starts to operate, the outside air first contacts the vent 2 on the side of the anti-interference protection box 1. The vent 2 serves as the main channel for air to enter, and a plurality of rotating wind plates 3 are arranged inside the vent. The airflow generates an impact force on the rotating wind plates 3, and the rotating wind plates 3 can play a preliminary role in blocking dust, because some larger particles of dust will be intercepted or change the direction of movement during the rotation of the wind plates, thereby reducing the amount of dust entering the protection frame 4; after passing through the rotating wind plates 3, the air flows to the arc-shaped guide plate 5 in the protection frame 4, and the arc-shaped guide plate 5 is fixed at the front center of the protection frame 4, and its arc-shaped design can effectively guide As to the direction of air flow, when the air hits the arc guide plate 5, due to the arc-shaped structural characteristics, the air will flow along the arc surface, and the dust carried will rebound at the arc guide plate 5. The direction of dust rebound is mainly toward the bottom of the protection frame 4. This utilizes the principle of aerodynamics and changes the movement trajectory of dust through the arc guide plate 5, rather than directly allowing the airflow to enter the anti-interference protection box 1, so that dust can more easily settle to the bottom of the protection frame 4 under the action of gravity, further preventing dust from entering the anti-interference protection box 1. After the dust rebound process, the air enters the anti-interference protection box 1 through the multiple first ventilation holes 6 opened on the protection frame 4 and the multiple second ventilation holes 7 on both sides. The size and distribution of the first ventilation hole 6 and the second ventilation hole 7 are designed to prevent the remaining tiny dust particles from entering the box. At the same time, since the dust in the protective frame 4 has been mostly processed by the arc guide plate 5, the air entering the ventilation hole is relatively clean, thereby achieving effective dust prevention and ventilation functions; with the rotation of the rotating wind plate 3, the scraper block 9 fixedly connected by the connecting rod 8 will move synchronously. The function of the scraper block 9 is to scrape the inner wall of the protective frame 4 during the movement. During the air flow, although most of the dust will be rebounded to the bottom of the protective frame 4 by the arc guide plate 5, a small amount of dust may still adhere to the inner wall of the protective frame 4. Driven by the rotating wind plate 3, the scraper block 9 The inner wall of the protective frame 4 is continuously cleaned to ensure that too much dust will not accumulate on the inner wall, so as to prevent the dust from being lifted up and entering the ventilation holes or the inside of the anti-interference protection box 1 again; when a certain amount of dust has accumulated at the bottom of the protective frame 4, in order to ensure the normal operation and ventilation effect of the protective frame 4, the dust at the bottom needs to be cleaned. In this case, an external powerful blowing device can be started, and the air outlet of the blowing device can be aligned with the air outlet 2. The strong wind force generated by the powerful blowing device will enter the inside of the protective frame 4 through the air outlet 2. Since the circulation outlet 12 is connected to the bottom of the inside of the protective frame 4, the wind force will directly act on the dust accumulated at the bottom of the protective frame 4 due to the rebound of the arc guide plate 5, and blow it out.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An anti-interference protection device for a power grid, characterized in that: The invention comprises an anti-interference protection box (1), a ventilation opening (2) is provided on one side of the anti-interference protection box (1), a plurality of rotating air plates (3) are rotatably arranged inside the ventilation opening (2), a protection frame (4) is fixedly arranged inside the anti-interference protection box (1), and the protection frame (4) is connected to one side of the ventilation opening (2); An arc-shaped guide plate (5) is fixedly provided at the front center of the protection frame (4), and the arc-shaped guide plate (5) corresponds to the plurality of rotating wind plates (3). The protection frame (4) is provided with a plurality of first ventilation holes (6), and both sides of the protection frame (4) are provided with a plurality of second ventilation holes (7), and a scraper block (9) is fixedly provided on one of the rotating wind plates (3) via a connecting rod (8).

2. The anti-interference protection device for the electric power grid according to claim 1, characterized in that: The lower surface of the anti-interference protection box (1) is provided with a plurality of movable wheel sets (10), and the front surface of the anti-interference protection box (1) is provided with a box door (11).

3. The anti-interference protection device for the electric power grid according to claim 2, characterized in that: A circulation outlet (12) is provided on one side of the anti-interference protection box (1), and the circulation outlet (12) is connected to the bottom of the protection frame (4).

4. The anti-interference protection device for the electric power grid according to claim 3, characterized in that: A plurality of anti-return blocks (13) are fixedly arranged in the circulation outlet (12), and the anti-return blocks (13) are in an arc shape.

5. The anti-interference protection device for the electric power grid according to claim 4, characterized in that: An adjustment frame (14) is rotatably provided on one side of the plurality of rotating air plates (3), a threaded rod (15) is rotatably provided on the adjustment frame (14), and a connection block (16) is fixedly provided on one side of the anti-interference protection box (1).

6. The anti-interference protection device for the electric power grid according to claim 5, characterized in that: A sliding groove (17) is provided inside the connecting block (16) and a sliding block (18) is slidably provided inside the sliding groove (17).

7. The anti-interference protection device for the electric power grid according to claim 6, characterized in that: The top end of the threaded rod (15) is threadedly connected to the inside of the slider (18), and a turning handle (19) is fixedly provided at the top end of the threaded rod (15).

8. A method for using an anti-interference protection device for a power grid, comprising the anti-interference protection device for a power grid according to any one of claims 1 to 7, characterized in that: include, Air enters the vent (2) on the side of the anti-interference protection box (1); The air flows toward the arc-shaped guide plate (5) in the protection frame (4); Air enters the interior of the anti-interference protection box (1) through a plurality of first ventilation holes (6) provided on the protection frame (4) and a plurality of second ventilation holes (7) on both sides; The scraper (9) scrapes the inner wall of the protection frame (4); Clean the dust accumulated on the bottom of the protective frame (4).

9. The method for using the anti-interference protection device of the electric power grid according to claim 8, characterized in that: When air enters the vent (2) on the side of the anti-interference protection box (1), the airflow will generate an impact force on the rotating air plate (3), and the rotating air plate (3) can play a preliminary role in blocking dust.

10. The method for using the anti-interference protection device of the electric power grid according to claim 9, characterized in that: When the air hits the arc guide plate (5), the air will flow along the arc surface, and the dust carried by the air will rebound at the arc guide plate (5), changing the movement trajectory of the dust through the arc guide plate (5), so that the dust settles to the bottom of the protective frame (4) under the action of gravity.

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