Capacitor automatic switching device

Abstract

The utility model discloses a kind of automatic capacitor input devices, including capacitor automatic compensation cabinet, the lower part of the outer surface of capacitor automatic compensation cabinet front end is fixedly installed with insulating maintenance board, the upper part of the insulating maintenance board is covered with dust cover, the dust cover is connected with capacitor automatic compensation cabinet between turnover assembly, the turnover assembly includes rotating shaft, transmission case, motor, worm wheel and worm, the insulating maintenance board includes polycarbonate base plate and surface arc-resistant coating.The utility model discloses a kind of automatic capacitor input devices, through the insulating maintenance board of being set, improve the security when overhauling, the dust cover of being set, it is convenient to carry out protection when not using insulating maintenance board, play the role of dust prevention, through the turnover assembly of being set, it is convenient to drive dust cover to overturn, it is convenient to drive dust cover to open and close.

Description

Technical Field

[0001] This utility model relates to the technical field of automatic capacitor compensation cabinets, specifically an automatic capacitor input device. Background Technology

[0002] Automatic capacitor compensation cabinets are important devices in power systems used to improve the power factor and reduce line losses. They balance reactive power by automatically switching capacitor banks to ensure the stable operation of the power grid.

[0003] In existing technologies, when overhauling automatic capacitor compensation cabinets, an insulating mat needs to be laid at the front end of the cabinet to increase safety during maintenance. However, this method has the following drawbacks:

[0004] 1. Insufficient safety: Traditional inspection boards have limited insulation performance and lack anti-arc design, making them prone to electric shock or arc injury due to operational errors or environmental factors during maintenance.

[0005] 2. Lack of protective functions: Most devices are not equipped with dustproof structures. The long-term exposed maintenance panels are prone to dust accumulation, which affects the insulation performance and increases the maintenance frequency. In addition, some protective covers are mostly manually opened and closed, lacking automated design.

[0006] 3. Material performance limitations: For example, bakelite boards need to be relatively thick (usually more than 8mm) to achieve the required pressure resistance level, resulting in bulky equipment, and poor high temperature resistance and impact resistance.

[0007] Therefore, we propose an automatic capacitor switching device. Utility Model Content

[0008] (a) Technical problems to be solved

[0009] To address the shortcomings of existing technologies, this utility model provides an automatic capacitor switching device, which improves safety during maintenance and allows for dustproofing of the insulating maintenance board, effectively solving the problems in the background technology.

[0010] (II) Technical Solution

[0011] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automatic capacitor input device, comprising an automatic capacitor compensation cabinet, an insulating inspection plate fixedly installed on the lower part of the front outer surface of the automatic capacitor compensation cabinet, a dust cover covering the upper part of the insulating inspection plate, a flipping assembly connected between the dust cover and the automatic capacitor compensation cabinet, the flipping assembly comprising a rotating shaft, a transmission box, a motor, a worm gear and a worm, and the insulating inspection plate comprising a polycarbonate substrate and a surface anti-arc coating.

[0012] Preferably, the polycarbonate substrate has a thickness of 3-5 mm, an impact strength of ≥60 kJ / m², and a heat distortion temperature of ≥130℃.

[0013] Preferably, the surface anti-arc coating is an organosilicon resin layer doped with nano-alumina, with a thickness of 0.2-0.5 mm and a surface resistivity ≤10. 6 Ω·m.

[0014] Preferably, the transmission box is fixedly installed on the front end of the bottom of the outer surface of one side of the automatic capacitor compensation cabinet, and the motor is fixedly installed on one side of the upper outer surface of the transmission box.

[0015] Preferably, both the worm and the worm wheel are installed inside the transmission box. The worm is connected to the motor, and a coupling is provided between the worm and the motor. The upper outer surface of the worm is fixedly connected to the lower outer surface of the output shaft of the motor through the coupling. The worm wheel is located on one side of the worm and is fixedly installed on the outer wall of one end of the rotating shaft. One end of the dust cover is fixed to the outer surface of one side of the rotating shaft. Bearings are provided between the rotating shaft, the worm, and the transmission box. The rotating shaft and the worm are rotatably connected to the transmission box through the bearings.

[0016] Preferably, the worm and worm wheel are engaged by axial module, the worm wheel tooth surface is arc-shaped, and the worm tooth surface is trapezoidal thread, so as to increase the contact area and improve the self-locking reliability.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides an automatic capacitor switching device, which has the following advantages:

[0019] 1. This automatic capacitor switching device uses a composite structure of polycarbonate substrate (3-5mm thick) and surface anti-arc coating on the insulating maintenance plate. It has high insulation (withstands the voltage rating), impact resistance (≥60kJ / m²), and high temperature resistance (heat distortion temperature ≥130℃), which significantly reduces the risk of electric shock during maintenance. The surface anti-arc coating is an organosilicon resin layer doped with nano-alumina, which effectively suppresses arc discharge and further ensures the safety of operators.

[0020] 2. This automatic capacitor switching device automatically controls the opening and closing of the dust cover through a motor-driven flipping component (worm gear transmission), avoiding the cumbersome nature of traditional manual operation. At the same time, it provides sealed protection when the insulating inspection plate is not used, reducing dust accumulation and extending the equipment life. The worm gear design has a self-locking function (trapezoidal thread and arc tooth surface meshing), ensuring that the dust cover stays stably in any position and preventing accidental slippage.

[0021] 3. The resistivity of the anti-arc coating surface of this automatic capacitor switching device is ≤10.6 Ω·m, suppresses leakage current in humid environments, suitable for industrial scenarios with high humidity or high dust levels. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an automatic capacitor switching device according to the present invention.

[0023] Figure 2 This is a schematic diagram of the structure of the insulating inspection plate in an automatic capacitor switching device according to this utility model.

[0024] Figure 3 This is a schematic diagram of the dust cover and flipping component in an automatic capacitor input device according to this utility model.

[0025] Figure 4 This is a partial bottom structural diagram of an automatic capacitor input device according to the present invention.

[0026] Figure 5 This is a front cross-sectional view of the transmission box in an automatic capacitor input device according to this utility model.

[0027] In the diagram: 1. Automatic capacitor compensation cabinet; 2. Insulating inspection board; 3. Dust cover; 4. Flip assembly; 5. Polycarbonate substrate; 6. Surface anti-arc coating; 7. Rotating shaft; 8. Transmission box; 9. Motor; 10. Worm gear; 11. Worm. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] This embodiment is an automatic capacitor switching device.

[0030] like Figure 1-5 As shown, the device includes an automatic capacitor compensation cabinet 1. An insulating inspection plate 2 is fixedly installed on the lower part of the front outer surface of the automatic capacitor compensation cabinet 1. A dust cover 3 is provided on the upper part of the insulating inspection plate 2. A flipping assembly 4 is connected between the dust cover 3 and the automatic capacitor compensation cabinet 1. The flipping assembly 4 includes a rotating shaft 7, a transmission box 8, a motor 9, a worm gear 10, and a worm 11. The insulating inspection plate 2 includes a polycarbonate substrate 5 and a surface anti-arc coating 6.

[0031] The polycarbonate substrate 5 has a thickness of 3-5 mm, an impact strength ≥60 kJ / m², and a heat distortion temperature ≥130℃; the surface anti-arc coating 6 is an organosilicon resin layer doped with nano-alumina, with a thickness of 0.2-0.5 mm and a surface resistivity ≤10. 6Ω·m; The transmission box 8 is fixedly installed at the front end of the bottom of the outer surface of one side of the automatic capacitor compensation cabinet 1, and the motor 9 is fixedly installed on one side of the upper outer surface of the transmission box 8; the worm 11 and the worm wheel 10 are both installed inside the transmission box 8. The worm 11 is connected to the motor 9, and a coupling is provided between the worm 11 and the motor 9. The upper outer surface of the worm 11 is fixedly connected to the lower outer surface of the output shaft in the motor 9 through the coupling. The worm wheel 10 is located on one side of the worm 11 and is fixedly installed on the outer wall of one end of the rotating shaft 7. One end of the dust cover 3 is fixed to the outer surface of one side of the rotating shaft 7. Bearings are provided between the rotating shaft 7, the worm 11 and the transmission box 8. The rotating shaft 7 and the worm 11 are rotatably connected to the transmission box 8 through the bearings; the worm 11 and the worm wheel 10 adopt axial module meshing. The tooth surface of the worm wheel 10 is arc-shaped, and the tooth surface of the worm 11 is trapezoidal thread to increase the contact area and improve the self-locking reliability.

[0032] It should be noted that this utility model is an automatic capacitor switching device. The automatic capacitor compensation cabinet 1 described in this document belongs to the prior art and can be effectively known to those skilled in the art. Specific details will not be elaborated further. The insulating inspection plate 2 includes a polycarbonate substrate 5 and a surface anti-arc coating 6. The polycarbonate substrate 5 has a thickness of 3-5mm, an impact strength ≥60kJ / m², and a heat distortion temperature ≥130℃. The 3-5mm thickness balances insulation strength and weight (traditional bakelite boards require 8mm to achieve the same withstand voltage). The surface anti-arc coating 6 is an organosilicon resin layer doped with nano-alumina. The nano-alumina improves arc resistance. The coating has a thickness of 0.2-0.5mm and a surface resistivity ≤10. 6 Ω·m, 0.2-0.5mm ensures a balance between adhesion and insulation performance; the dust cover 3 provides protection when the insulation inspection plate 2 is not in use; the motor 9 drives the worm gear 11 to rotate, and the worm gear 11 drives the rotating shaft 7 to rotate through the worm wheel 10; the rotating shaft 7 drives the dust cover 3 to flip, making it easy to open and close the dust cover 3.

[0033] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An automatic capacitor switching device, comprising an automatic capacitor compensation cabinet (1), characterized in that: An insulating inspection plate (2) is fixedly installed on the lower part of the outer surface of the front end of the automatic capacitor compensation cabinet (1). A dust cover (3) is provided on the upper part of the insulating inspection plate (2). A flipping assembly (4) is connected between the dust cover (3) and the automatic capacitor compensation cabinet (1). The flipping assembly (4) includes a rotating shaft (7), a transmission box (8), a motor (9), a worm gear (10), and a worm (11). The insulating inspection plate (2) includes a polycarbonate substrate (5) and an anti-arc coating (6) on the surface.

2. The automatic capacitor switching device according to claim 1, characterized in that: The polycarbonate substrate (5) has a thickness of 3-5 mm, an impact strength of ≥60 kJ / m², and a heat distortion temperature of ≥130℃.

3. The automatic capacitor switching device according to claim 2, characterized in that: The surface anti-arc coating (6) is an organosilicon resin layer doped with nano-alumina, with a thickness of 0.2-0.5 mm and a surface resistivity ≤10. 6 Ω·m.

4. The automatic capacitor switching device according to claim 3, characterized in that: The transmission box (8) is fixedly installed on the front end of the bottom of the outer surface of one side of the automatic capacitor compensation cabinet (1), and the motor (9) is fixedly installed on one side of the upper outer surface of the transmission box (8).

5. The automatic capacitor switching device according to claim 4, characterized in that: The worm (11) and worm wheel (10) are both installed inside the transmission box (8). The worm (11) is connected to the motor (9). A coupling is provided between the worm (11) and the motor (9). The upper outer surface of the worm (11) is fixedly connected to the lower outer surface of the output shaft of the motor (9) through the coupling. The worm wheel (10) is located on one side of the worm (11) and is fixedly installed on the outer wall of one end of the rotating shaft (7). One end of the dust cover (3) is fixed on the outer surface of one side of the rotating shaft (7). Bearings are provided between the rotating shaft (7), the worm (11) and the transmission box (8). The rotating shaft (7) and the worm (11) are rotatably connected to the transmission box (8) through the bearings.

6. The automatic capacitor switching device according to claim 5, characterized in that: The worm (11) and worm wheel (10) are engaged by axial module. The tooth surface of the worm wheel (10) is arc-shaped, and the tooth surface of the worm (11) is trapezoidal thread, so as to increase the contact area and improve the self-locking reliability.

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