High-voltage passive filtering device

Abstract

The utility model relates to the technical field of passive filtering devices, in particular to a high-voltage passive filtering device, which comprises a device cabinet body, one end of the device cabinet body is rotatably connected with a protective door, a plurality of supporting plates are fixedly connected in the device cabinet body, and passive filtering electrical components are mounted at the top ends of the supporting plates. One end of the supporting plate is connected with a lifting mechanism in a sliding mode, the lifting mechanism comprises a sliding plate, the sliding plate is connected to one end of the supporting plate in a sliding mode and penetrates into the supporting plate, and one end of the supporting plate is connected with a fixing mechanism in a rotating mode, located on the two sides of the lifting mechanism and penetrates into the supporting plate. According to the utility model, the passive filtering electrical apparatus element can be driven to move up and down in the supporting plate through the cooperation between the internal parts of the lifting mechanism, and the installation and fixation between the passive filtering electrical apparatus element and the supporting plate can be released through the cooperation between the internal parts of the fixing mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of passive filtering devices, in particular to a high-voltage passive filtering device. Background Art

[0002] High-voltage passive power filter devices are devices specially used to filter and reduce specific harmonic currents. They are generally composed of several filter branches, and the main components are high-voltage circuit breakers, disconnectors, filter capacitors, filter reactors, resistors, discharge coils, current transformers, non-inductive power grids, etc. The filter device is usually connected in parallel with the harmonic source to provide a low-impedance channel for one or several harmonics, absorb most of the harmonic currents, and play a role in filtering harmonics. At the same time, at the fundamental frequency, it provides capacitive reactive power and plays a role in reactive power compensation. Filter devices are generally divided into single-tuned filtering, high-pass filtering and double-tuned filtering. In engineering applications, several groups of single-tuned filtering and a group of high-pass filtering are often used to form a complete set of filtering devices.

[0003] After searching, a utility model patent with publication number CN220107367U specifically discloses a high-voltage passive filtering device, wherein a rain shelter is installed on the top of the high-voltage passive filtering cabinet, a through slot penetrating the rain shelter is opened on the rain shelter, a fan is installed on the top of the through slot, a connecting hose is installed on the output end of the fan, a connecting hard pipe is slidably installed in the high-voltage passive filtering cabinet, the top of the connecting hard pipe is connected to the connecting hose, a plurality of air blowing pipes are installed on the connecting hard pipe, and an adjusting valve is installed on the air blowing pipe; the utility model can evenly blow air to each group of high-voltage passive filtering electrical components by arranging air nozzles corresponding to the high-voltage passive filtering electrical components above each group of partitions, thereby solving the technical problem in the prior art that the wind force is gradually weakened due to the obstruction of the partitions, making it difficult to dissipate heat to the electrical components at the lower end of the air outlet, and achieving better heat dissipation effect.

[0004] In the above patent, air is blown evenly to each group of high-voltage passive filtering electrical components only by an air nozzle, so as to solve the technical problem of heat dissipation of the electrical components. However, during long-term use of the device, technicians are required to regularly inspect and repair the high-voltage passive filtering electrical components. The passive filtering electrical components inside the existing device are generally connected and fixed to the device by bolts and other fixing parts. However, due to the small space inside the device, it is not convenient for technicians to quickly remove the passive filtering electrical components inside the device for comprehensive inspection and maintenance.

[0005] Therefore, it is necessary for us to propose a high-voltage passive filtering device to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a high-voltage passive filtering device, which can drive the passive filtering electrical components to move up and down inside a support plate through the cooperation between the internal parts of the lifting mechanism, and at the same time, through the mutual cooperation between the internal parts of the fixing mechanism, the installation and fixation between the passive filtering electrical components and the support plate can be released, so as to solve the problem in the prior art that the space inside the device is small, which makes it inconvenient for technicians to quickly take out the passive filtering electrical components inside the device and conduct comprehensive inspection and maintenance.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-voltage passive filtering device, comprising a device cabinet, one end of the device cabinet is rotatably connected to a protective door, a plurality of support plates are connected and fixed inside the device cabinet, a passive filtering electrical component is installed on the top of the support plate, one end of the support plate is slidably connected to a lifting mechanism and penetrates into the interior of the support plate, one end of the support plate is rotatably connected to a fixing mechanism, and is located on both sides of the lifting mechanism and penetrates into the interior of the support plate.

[0008] Preferably, the lifting mechanism includes a sliding plate, which is slidably connected to one end of a supporting plate and passes through the interior of the supporting plate, the top of the sliding plate is connected and fixed to a limiting plate and is located inside the supporting plate, one end of the limiting plate is connected and fixed to a contraction spring, the interior of the supporting plate is slidably connected to a lifting plate and is located at the bottom end of the passive filtering electrical component, one end of the lifting plate close to the sliding plate is connected and fixed to a connecting plate and is located at the bottom end of the sliding plate, and the bottom end of the lifting plate is connected and fixed to a lifting spring and is located inside the supporting plate.

[0009] Preferably, the fixing mechanism includes a connecting column, which is rotatably connected to one end of the support plate and penetrates into the interior of the support plate and is located on both sides of the sliding plate. A torsion spring is connected and fixed to the interior of the support plate and is sleeved on the outer wall of the connecting column. One end of the connecting column is connected and fixed to a connecting gear and is located inside the support plate. A fixed block is slidably connected to the interior of the support plate and penetrates through the support plate to the interior of the passive filtering electrical component and is located above the connecting column. A rack is connected and fixed to the bottom end of the fixed block, and a connecting spring is connected and fixed to the side of the rack and the fixed block away from the passive filtering electrical component and is located inside the support plate.

[0010] Preferably, the protective door is rotatably connected to the device cabinet through a hinge, a sliding groove matching the sliding plate is provided inside the support plate, and a limiting groove matching the limiting plate is provided inside the support plate.

[0011] Preferably, a lifting groove matching the lifting plate is provided inside the support plate, a mounting groove matching the passive filtering electrical component is provided at the top of the support plate, and arc surfaces are provided on the contact surfaces of the lifting plate and the sliding plate.

[0012] Preferably, the connecting column is rotatably connected to the support plate via a bearing, the two ends of the torsion spring are rotatably connected to the support plate and the connecting column respectively, the connecting gear is meshed with the rack via a tooth block, a movable groove matching the fixed block is provided inside the support plate, and fixed grooves matching the fixed block are provided on both sides of the passive filtering electrical component.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] 1. Open the protective door on the device cabinet to release the protection of the parts inside the device cabinet, and rotate the connecting column on the support plate to make the connecting column squeeze the torsion spring and twist and rotate. The rotation of the connecting column drives the connecting gear to rotate, and the rotation of the connecting gear drives the rack to move, so that the rack drives the fixed block to squeeze the connecting spring. The fixed block squeezes the connecting spring and shrinks and moves, so that the fixed block moves from both sides of the passive filtering electrical component to the inside of the support plate, and the position fixation of the passive filtering electrical component is released, so that the connection fixation between the passive filtering electrical component and the support plate can be contacted;

[0015] 2. Open the protective door to release the pressure on the sliding plate, so that the limit plate at the top of the sliding plate releases the pressure on the contraction spring, the contraction spring resets and pushes the limit plate to move, the limit plate moves and drives the sliding plate to move out from the inside of the support plate, so that the sliding plate moves to release the pressure on the connecting plate, the connecting plate drives the lifting plate to release the pressure on the lifting spring, the lifting spring resets and pushes the lifting plate to move, the lifting plate moves and pushes the passive filtering electrical component out from the inside of the support plate, and releases the connection between the passive filtering electrical component and the support plate. At the same time, the lifting plate blocks the fixed blocks on both sides of the support plate, so that the fixed blocks continue to squeeze the connecting spring for position limiting, and the passive filtering electrical component can be removed from the inside of the support plate, thereby facilitating the technicians to remove, inspect and repair the passive filtering electrical component inside the device cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a top view structural diagram of the support plate and passive filtering electrical components of the utility model;

[0019] Figure 3 It is a schematic diagram of the exploded cross-sectional structure of the support plate and the passive filtering electrical component of the utility model;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the support plate of the utility model;

[0021] Figure 5 For the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0022] Description of reference numerals:

[0023] 1. Device cabinet; 101. Protective door; 102. Support plate; 2. Lifting mechanism; 201. Sliding plate; 202. Limiting plate; 203. Contraction spring; 204. Lifting plate; 205. Connecting plate; 206. Lifting spring; 3. Fixing mechanism; 301. Connecting column; 302. Torsion spring; 303. Connecting gear; 304. Rack; 305. Fixing block; 306. Connecting spring; 4. Passive filtering electrical components. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model provides Figure 1-5 A high-voltage passive filtering device is shown, including a device cabinet 1, one end of the device cabinet 1 is rotatably connected to a protective door 101, a plurality of support plates 102 are connected and fixed inside the device cabinet 1, a passive filtering electrical component 4 is installed on the top of the support plate 102, one end of the support plate 102 is slidably connected to a lifting mechanism 2 and penetrates into the interior of the support plate 102, one end of the support plate 102 is rotatably connected to a fixing mechanism 3, and is located on both sides of the lifting mechanism 2 and penetrates into the interior of the support plate 102, through the mutual cooperation between the internal parts of the lifting mechanism 2, the passive filtering electrical component 4 can be driven to move up and down inside the support plate 102, and at the same time, through the mutual cooperation between the internal parts of the fixing mechanism 3, the installation and fixation between the passive filtering electrical component 4 and the support plate 102 can be released.

[0026] Refer to the instruction manual Figure 1-5The lifting mechanism 2 includes a sliding plate 201, which is slidably connected to one end of the support plate 102 and penetrates into the interior of the support plate 102. The top of the sliding plate 201 is connected and fixed to a limiting plate 202 and is located inside the support plate 102. One end of the limiting plate 202 is connected and fixed with a contraction spring 203. The interior of the support plate 102 is slidably connected to a lifting plate 204 and is located at the bottom end of the passive filtering electrical component 4. One end of the lifting plate 204 close to the sliding plate 201 is connected and fixed with a connecting plate 205 and is located at the bottom end of the sliding plate 201. The bottom end of the lifting plate 204 is connected and fixed with a lifting spring 206 and is located inside the support plate 102. Through the mutual cooperation between the internal parts of the lifting mechanism 2, the passive filtering electrical component 4 can be driven to move up and down inside the support plate 102.

[0027] Refer to the instruction manual Figure 1-5 The fixing mechanism 3 includes a connecting column 301, which is rotatably connected to one end of the support plate 102 and penetrates the interior of the support plate 102 and is located on both sides of the sliding plate 201. A torsion spring 302 is connected and fixed inside the support plate 102 and is sleeved on the outer wall of the connecting column 301. One end of the connecting column 301 is connected and fixed with a connecting gear 303 and is located inside the support plate 102. A fixing block 305 is slidably connected inside the support plate 102 and penetrates the support plate 102 to the interior of the passive filtering electrical component 4 and is located above the connecting column 301. A rack 304 is connected and fixed to the bottom end of the fixing block 305. A connecting spring 306 is connected and fixed to the side of the rack 304 and the fixing block 305 away from the passive filtering electrical component 4 and is located inside the support plate 102. The installation and fixation between the passive filtering electrical component 4 and the support plate 102 can be released by the mutual cooperation between the internal parts of the fixing mechanism 3.

[0028] Refer to the instruction manual Figure 1-5 The protective door 101 is rotatably connected to the device cabinet 1 through a hinge, a sliding groove matching the sliding plate 201 is opened inside the support plate 102, and a limiting groove matching the limiting plate 202 is opened inside the support plate 102. Through the limiting groove inside the support plate 102, the sliding plate 201 can drive the limiting plate 202 to move.

[0029] Refer to the instruction manual Figure 1-5 A lifting groove matching the lifting plate 204 is provided inside the support plate 102, a mounting groove matching the passive filtering electrical component 4 is provided at the top of the support plate 102, and arc surfaces are provided on the contact surfaces of the lifting plate 204 and the sliding plate 201. The contact surfaces of the lifting plate 204 and the sliding plate 201 are arc surfaces, so that the sliding plate 201 can move and squeeze the lifting plate 204.

[0030] Refer to the instruction manual Figure 1-5The connecting column 301 is rotatably connected to the support plate 102 through a bearing, and the two ends of the torsion spring 302 are rotatably connected to the support plate 102 and the connecting column 301 respectively. The connecting gear 303 is meshed with the rack 304 through the tooth block. A moving groove matching the fixed block 305 is provided inside the support plate 102, and fixed grooves matching the fixed block 305 are provided on both sides of the passive filtering electrical component 4. The connecting gear 303 is meshed with the rack 304, so that the connecting gear 303 rotates to drive the rack 304 to move.

[0031] How this utility works:

[0032] Refer to the instruction manual Figure 1-5 , by opening the protective door 101 on the device cabinet 1, the protective door 101 releases the protection of the components inside the device cabinet 1, and the connecting column 301 on the support plate 102 is rotated, so that the connecting column 301 squeezes the torsion spring 302 to twist and rotate, the rotation of the connecting column 301 drives the connecting gear 303 to rotate, the rotation of the connecting gear 303 drives the rack 304 to move, so that the rack 304 drives the fixed block 305 to squeeze the connecting spring 306, the fixed block 305 squeezes the connecting spring 306 to shrink and move, so that the fixed block 305 moves from both sides of the passive filtering electrical component 4 to the inside of the support plate 102, the position fixation of the passive filtering electrical component 4 is released, and the connection fixation between the passive filtering electrical component 4 and the support plate 102 can be contacted;

[0033] Refer to the instruction manual Figure 1-5 , by opening the protective door 101, the protective door 101 releases the pressure on the sliding plate 201, so that the limit plate 202 at the top of the sliding plate 201 releases the pressure on the contraction spring 203, and the contraction spring 203 resets and pushes the limit plate 202 to move, and the movement of the limit plate 202 drives the sliding plate 201 to move out from the inside of the support plate 102, so that the sliding plate 201 moves to release the pressure on the connecting plate 205, and the connecting plate 205 drives the lifting plate 204 to release the pressure on the lifting spring 206, so that the lifting spring 206 resets and pushes the lifting plate 2 04 moves, so that the lifting plate 204 moves to push the passive filtering electrical component 4 out of the support plate 102, and releases the connection between the passive filtering electrical component 4 and the support plate 102. At the same time, the lifting plate 204 blocks the fixed blocks 305 on both sides of the support plate 102, so that the fixed blocks 305 continue to squeeze the connecting spring 306 for position limiting, and the passive filtering electrical component 4 can be removed from the support plate 102, so that it is convenient for technicians to remove, detect and repair the passive filtering electrical component 4 inside the device cabinet 1.

[0034] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high voltage passive filtering device, comprising a device cabinet (1), characterized in that: One end of the device cabinet (1) is rotatably connected to a protective door (101); a plurality of support plates (102) are connected and fixed inside the device cabinet (1); a passive filtering electrical component (4) is installed on the top of each support plate (102); one end of the support plate (102) is slidably connected to a lifting mechanism (2) and penetrates into the interior of the support plate (102); one end of the support plate (102) is rotatably connected to a fixing mechanism (3), which is located on both sides of the lifting mechanism (2) and penetrates into the interior of the support plate (102).

2. A high voltage passive filtering device according to claim 1, characterized in that: The lifting mechanism (2) comprises a sliding plate (201), the sliding plate (201) is slidably connected to one end of the support plate (102) and penetrates into the interior of the support plate (102), the top end of the sliding plate (201) is connected and fixed to a limit plate (202) and is located inside the support plate (102), one end of the limit plate (202) is connected and fixed to a contraction spring (203), the interior of the support plate (102) is slidably connected to a lifting plate (204) and is located at the bottom end of the passive filtering electrical component (4), one end of the lifting plate (204) close to the sliding plate (201) is connected and fixed to a connecting plate (205) and is located at the bottom end of the sliding plate (201), and the bottom end of the lifting plate (204) is connected and fixed to a lifting spring (206) and is located inside the support plate (102).

3. A high voltage passive filtering device according to claim 2, characterized in that: The fixing mechanism (3) comprises a connecting column (301), the connecting column (301) is rotatably connected to one end of the support plate (102), penetrates the interior of the support plate (102), and is located on both sides of the sliding plate (201); a torsion spring (302) is connected and fixed inside the support plate (102) and is sleeved on the outer wall of the connecting column (301); one end of the connecting column (301) is connected and fixed to a connecting gear (303) and is located on the support plate (102). The interior of the support plate (102) is slidably connected to a fixing block (305) which penetrates the support plate (102) to the interior of the passive filtering electrical component (4) and is located above the connecting column (301); a rack (304) is connected and fixed to the bottom end of the fixing block (305); a connecting spring (306) is connected and fixed to the side of the rack (304) and the fixing block (305) away from the passive filtering electrical component (4) and is located inside the support plate (102).

4. A high voltage passive filtering device according to claim 2, characterized in that: The protective door (101) is rotatably connected to the device cabinet (1) via a hinge; a sliding groove matching the sliding plate (201) is provided inside the support plate (102); and a limiting groove matching the limiting plate (202) is provided inside the support plate (102).

5. A high voltage passive filter device according to claim 2, characterized in that: The support plate (102) has a lifting groove inside that matches the lifting plate (204), the top of the support plate (102) has a mounting groove that matches the passive filtering electrical component (4), and the contact surfaces of the lifting plate (204) and the sliding plate (201) are both provided with arc surfaces.

6. A high voltage passive filter device according to claim 3, characterized in that: The connecting column (301) is rotatably connected to the support plate (102) via a bearing, the two ends of the torsion spring (302) are rotatably connected to the support plate (102) and the connecting column (301) respectively, the connecting gear (303) is meshed with the rack (304) via a tooth block, a movable groove matching the fixed block (305) is provided inside the support plate (102), and fixed grooves matching the fixed block (305) are provided on both sides of the passive filtering electrical component (4).

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