An arc suppression coil protection device

Abstract

The utility model is suitable for arc suppression coil field provides an arc suppression coil protection device, including cabinet, the upper and lower surface of cabinet is provided with top cover and base respectively, top cover and base all are fixedly arranged with the interface frame, a plurality of interface rods are installed between interface frame and cabinet, interface frame and cabinet outside still cover set up the protection frame, wherein, the fixed setting of protection frame is on interface frame, protection frame and cabinet outside wall gap cooperation, a plurality of lateral surfaces of protection frame all are set up with the heat dissipation window, install the dust screen in heat dissipation window, still be provided with the drive assembly of drive upper and lower two sides interface frame synchronous to the direction of close to or away from cabinet movement in cabinet, this structure passes through movable protection frame, provides the foundation for the relative position of dynamic regulation heat dissipation window and cabinet, the flexible adjustment of heat dissipation area can be realized in combination with drive assembly, solve the problem of fixed window heat dissipation efficiency deficiency, dust screen can prevent dust from invading simultaneously, improve the protection performance.

Description

Technical Field

[0001] This utility model relates to the field of arc suppression coils, specifically an arc suppression coil protection device. Background Technology

[0002] In power systems, arc suppression coils are key equipment in low-current grounding systems. These coils, consisting of an iron-core inductor connected between the neutral point of a transformer or generator and the ground, compensate for the capacitive fault current when a single-phase arcing ground fault occurs in the power grid. This ensures that the residual current is insufficient to sustain the arc, thereby achieving rapid fault elimination and overvoltage suppression. Their safe and stable operation is crucial to the reliability of the power grid; therefore, protective devices are necessary.

[0003] Existing arc suppression coil protection devices mostly adopt a protective cabinet structure. To solve the problem of heat generation during operation of the equipment inside the cabinet, cooling fans and heat dissipation windows are usually installed. However, such devices have significant drawbacks: because the heat dissipation window area is fixed, when the arc suppression coil experiences a sudden increase in heat generation due to conditions such as lightning strikes or short circuits, the fixed-area window cannot quickly dissipate a large amount of heat, which can easily cause the temperature inside the cabinet to exceed the limit, affecting the performance of the arc suppression coil and even causing equipment failure.

[0004] Therefore, there is an urgent need to design an arc suppression coil protection device with dynamic heat dissipation adjustment function to solve the problems of insufficient heat dissipation efficiency and protection performance defects, and ensure the safe and stable operation of the power grid. Utility Model Content

[0005] The purpose of this invention is to provide an arc suppression coil protection device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An arc suppression coil protection device includes a cabinet with a switch door on the front and a cooling fan on the back. A top cover and a base are respectively located on the top and bottom of the cabinet. Connecting frames are fixedly mounted on both the top cover and the base. Multiple connecting rods, L-shaped in structure, are installed between the connecting frames and the cabinet. One end of each connecting rod is fixedly mounted on the connecting frame, while the other end is movably inserted into the end face of the cabinet. A protective frame is also fitted around the connecting frames and the cabinet body. The protective frame is fixedly mounted on the connecting frames and has a clearance fit with the outer wall of the cabinet. Multiple sides of the protective frame have ventilation windows with dustproof mesh installed inside. A drive assembly is also provided inside the cabinet to drive the upper and lower connecting frames to move synchronously towards or away from the cabinet body.

[0008] As a further embodiment of this utility model: the drive assembly includes a housing, an electric telescopic cylinder, a rotating component, a movable component, a push-pull rod, and a connecting rod. The housing is fixedly installed on the inner wall of the cabinet. The rotating component is rotatably mounted inside the housing, and a pair of movable components are symmetrically slidably mounted on both sides of the rotating component inside the housing. One of the movable components is pushed by the electric telescopic cylinder installed inside the housing. The two movable components are fixedly connected to the top cover and the base respectively through multiple connecting rods. The movable component is connected to the rotating component through the push-pull rod, wherein one end of the push-pull rod is hinged to the side of the movable component, and the other end is rotatably mounted on the rotating component.

[0009] As a further embodiment of this utility model: two drive components are provided, and the two drive components are symmetrically arranged inside the cabinet.

[0010] As a further embodiment of this utility model: multiple slide rails are fixedly installed on the outer side wall of the cabinet, and a slide groove adapted to the slide rail is opened on the inner side wall of the protective frame.

[0011] As a further embodiment of this utility model: a temperature sensor and a controller are also provided inside the housing, and the controller is electrically connected to the electric telescopic cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model provides a basis for dynamically adjusting the relative position of the heat dissipation window and the cabinet through a movable protective frame. Combined with the drive component, it can realize flexible adjustment of the heat dissipation area, solving the problem of insufficient heat dissipation efficiency of fixed windows. At the same time, the dustproof net can prevent dust from entering and improve the protective performance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an arc suppression coil protection device;

[0015] Figure 2 A top cross-sectional view of an arc suppression coil protection device;

[0016] Figure 3 This is a side cross-sectional view of an arc suppression coil protection device;

[0017] In the diagram: 1. Cabinet; 2. Opening / closing door; 3. Top cover; 4. Base; 5. Connecting frame; 6. Connecting rod; 7. Protective frame; 8. Dustproof net; 9. Box body; 10. Electric telescopic cylinder; 11. Rotating component; 12. Moving component; 13. Push-pull rod; 14. Connecting rod; 15. Slide rail; 16. Temperature sensor; 17. Controller. Detailed Implementation

[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0019] Example 1

[0020] Please see Figure 1-3 An arc suppression coil protection device includes a cabinet 1. A switch door 2 is installed on the front of the cabinet 1, and a cooling fan is installed on the back of the cabinet 1. A top cover 3 and a base 4 are respectively provided on the top and bottom surfaces of the cabinet 1. A connecting frame 5 is fixedly installed on both the top cover 3 and the base 4. Multiple connecting rods 6 are installed between the connecting frame 5 and the cabinet 1. The connecting rods 6 have an L-shaped structure and are distributed at the four corners of the connecting frame 5. One end of each connecting rod 6 is fixedly installed on the connecting frame 5, and the other end is movably inserted into the end face of the cabinet 1. A protective frame 7 is also fitted over the connecting frame 5 and the cabinet 1. The protective frame 7 is fixedly mounted on the connecting frame 5 and is fitted with the outer wall of the cabinet 1 with a gap. Multiple sides of the protective frame 7 are provided with heat dissipation windows, and dustproof nets 8 are installed in the heat dissipation windows. The cabinet 1 is also provided with a drive component that drives the upper and lower connecting frames 5 to move synchronously toward or away from the cabinet 1. This structure, through the movable protective frame 7, provides a basis for dynamically adjusting the relative position of the heat dissipation windows and the cabinet 1. Combined with the drive component, the heat dissipation area can be flexibly adjusted, solving the problem of insufficient heat dissipation efficiency of fixed windows. At the same time, the dustproof nets 8 can prevent dust from entering and improve the protective performance.

[0021] Example 2

[0022] Please see Figure 3 The drive assembly includes a housing 9, an electric telescopic cylinder 10, a rotating component 11, a movable component 12, a push-pull rod 13, and a connecting rod 14. The housing 9 is fixedly installed on the inner wall of the cabinet 1. The rotating component 11 is rotatably mounted inside the housing 9, and a pair of movable components 12 are symmetrically slidably arranged on both sides of the rotating component 11 inside the housing 9. One of the movable components 12 is pushed by the electric telescopic cylinder 10 installed inside the housing 9. The two movable components 12 are fixedly connected to the top cover 3 and the base 4 respectively through multiple connecting rods 14. The movable component 12 is connected to the rotating component 11 through the push-pull rod 13. One end of the push-pull rod 13 is hinged to the side of the movable component 12, and the other end is rotatably mounted on the rotating component 11. This assembly is driven by a single electric telescopic cylinder 10 and achieves synchronous movement on both sides by cooperating with the connecting rod 14 and the rotating component 11. The structure is compact and the power transmission is stable, ensuring that the protective frame 7 can be adjusted smoothly and avoiding jamming or damage caused by uneven force.

[0023] Example 3

[0024] Please see Figure 2 The drive assembly is provided in two parts, which are symmetrically arranged inside the cabinet 1. The dual drive assembly further enhances the stability and synchronization of the movement of the protective frame 7, reduces the possible skewness caused by single-sided drive, ensures the reliability of heat dissipation window adjustment, and extends the service life of the device.

[0025] Example 4

[0026] Please see Figure 1 Multiple slide rails 15 are fixedly installed on the outer side wall of the cabinet 1. The inner side wall of the protective frame 7 is provided with a slide groove that matches the slide rail 15. The cooperation between the slide rail 15 and the slide groove provides precise guidance for the sliding of the protective frame 7, reduces movement resistance, ensures that the protective frame 7 remains stable during adjustment, and prevents deviation from affecting the heat dissipation effect and protection function.

[0027] Example 5

[0028] Please see Figure 3 The housing is also equipped with a temperature sensor 16 and a controller 17. The controller 17 is electrically connected to the electric telescopic cylinder 10. The temperature sensor 16 monitors the temperature inside the cabinet in real time. The controller 17 automatically adjusts the electric telescopic cylinder 10 according to the temperature data to realize intelligent dynamic adjustment of the heat dissipation window area. When the temperature rises, the heat dissipation area is automatically increased; when the temperature drops, the exposed area is reduced, balancing heat dissipation efficiency and protection performance, and improving the intelligence level of the device.

[0029] Working principle:

[0030] During normal operation, the protective frame 7 maintains its initial position with the cabinet 1 via the connecting frame 5, the heat dissipation window is at a small opening, and the dustproof net 8 prevents dust from entering the cabinet 1. When the temperature sensor 16 detects an increase in the internal temperature, the controller 17 activates the electric telescopic cylinder 10, pushing one side of the movable part 12 to move. This, in turn, drives the rotating part 11 to rotate via the push-pull rod 13, causing the other side of the movable part 12 to move in the opposite direction. The two movable parts 12 pull the connecting frames 5 of the top cover 3 and the base 4 respectively via the connecting rod 14, causing the protective frame 7 to move outward along the slide rail 15, increasing the gap between the heat dissipation window and the cabinet 1, and improving heat dissipation efficiency. When the temperature drops to the set threshold, the electric telescopic cylinder 10 reverses its action, the protective frame 7 resets, reduces the heat dissipation area, and enhances protective performance. The dual-drive assembly and the slide rail 15 groove structure ensure that the protective frame 7 can be adjusted smoothly and precisely, achieving dynamic optimization of the arc suppression coil operating environment.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An arc suppression coil protection device, comprising a cabinet (1), a switch door (2) installed on the front of the cabinet (1), and a cooling fan installed on the back of the cabinet (1), characterized in that, The cabinet (1) is provided with a top cover (3) and a base (4) on its upper and lower sides respectively. A connecting frame (5) is fixedly provided on the top cover (3) and the base (4). Multiple connecting rods (6) are installed between the connecting frame (5) and the cabinet (1). The connecting rods (6) are L-shaped. One end of the connecting rod (6) is fixedly installed on the connecting frame (5), and the other end is movably inserted into the end face of the cabinet (1). A protective frame (7) is also provided outside the connecting frame (5) and the cabinet (1). The protective frame (7) is fixedly installed on the connecting frame (5). The protective frame (7) is gap-fitted with the outer wall of the cabinet (1). Multiple sides of the protective frame (7) are provided with heat dissipation windows. A dustproof net (8) is installed in the heat dissipation windows. A drive component is also provided inside the cabinet (1) to drive the upper and lower connecting frames (5) to move synchronously toward or away from the cabinet (1).

2. The arc-suppression coil protection device according to claim 1, characterized in that, The drive assembly includes a housing (9), an electric telescopic cylinder (10), a rotating component (11), a movable component (12), a push-pull rod (13), and a connecting rod (14). The housing (9) is fixedly installed on the inner wall of the cabinet (1). The rotating component (11) is rotatably installed inside the housing (9). A pair of movable components (12) are symmetrically slidably installed on both sides of the rotating component (11) inside the housing (9). One of the movable components (12) is pushed by the electric telescopic cylinder (10) installed inside the housing (9). The two movable components (12) are fixedly connected to the top cover (3) and the base (4) respectively through multiple connecting rods (14). The movable component (12) is connected to the rotating component (11) through the push-pull rod (13). One end of the push-pull rod (13) is hinged to the side of the movable component (12), and the other end is rotatably installed on the rotating component (11).

3. The arc-suppression coil protection device according to claim 2, characterized in that, There are two drive components, which are symmetrically arranged inside the cabinet (1).

4. The arc-suppression coil protection device according to claim 1, characterized in that, Multiple slide rails (15) are fixedly installed on the outer side wall of the cabinet (1), and a slide groove adapted to the slide rails (15) is opened on the inner side wall of the protective frame (7).

5. The arc-suppression coil protection device according to claim 1, characterized in that, The housing is also equipped with a temperature sensor (16) and a controller (17), which are electrically connected to the electric telescopic cylinder (10).

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