Transformer power frequency withstand voltage observation box

Abstract

The utility model discloses a transformer power frequency withstand voltage observation box, and relates to the technical field of transformer power frequency withstand voltage observation. The technical problem is that an existing transformer power frequency withstand voltage observation box is inconvenient to adjust according to different transformer sizes. According to the technical scheme, the transformer power frequency withstand voltage observation box comprises an observation box base and further comprises a withstand voltage side plate, a first observation window, a withstand voltage movable plate, a second observation window, a third observation window, a positioning assembly and a heat dissipation assembly. According to the transformer power frequency withstand voltage observation box, the position of the withstand voltage movable plate can be conveniently adjusted through the positioning assembly, the observation box can have good heat dissipation performance through the heat dissipation assembly, it is ensured that internal equipment cannot be overheated during long-time operation, the observation window is designed to be movable and adjustable, and the observation box is convenient to use. The transformer power frequency withstand voltage test device can meet the use requirements of transformers of different sizes, is high in flexibility, can bear high voltage during a transformer power frequency withstand voltage test, and ensures the safety of operators and equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer power frequency withstand voltage observation, in particular to a transformer power frequency withstand voltage observation box. Background Art

[0002] During the operation of the transformer, the insulation will gradually deteriorate and form defects due to the long-term effects of electric fields, temperature and mechanical vibration. The power frequency withstand voltage test plays a decisive role in assessing the main insulation strength of the transformer and checking local defects. It is an important means to check and verify the design, manufacturing and installation quality of the transformer, and the transformer power frequency withstand voltage observation box is a commonly used tool for auxiliary transformer power frequency withstand voltage testing. However, in actual use, the existing transformer power frequency withstand voltage observation box is generally a fixed structure, which is not convenient to adjust according to different transformer sizes. When the transformer is far away from the observation window, it is easy to be unable to observe clearly, which affects the test results. Utility Model Content

[0003] The utility model aims to provide a transformer power frequency withstand voltage observation box to solve the problem in the above background technology that the existing transformer power frequency withstand voltage observation box is not convenient to adjust according to different transformer sizes.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transformer power frequency withstand voltage observation box, comprising an observation box base, and also comprising a withstand voltage side panel, a first observation window, a withstand voltage movable plate, a second observation window, a third observation window, a positioning assembly, and a heat dissipation assembly; a withstand voltage side panel is fixed to the upper end of the observation box base, a first observation window is arranged on the left side of the withstand voltage side panel, a withstand voltage movable plate is connected to the upper end of the observation box base, a second observation window is arranged in front of the withstand voltage movable plate, third observation windows are arranged on both sides of the withstand voltage movable plate, positioning assemblies are connected to both sides of the withstand voltage movable plate, and a heat dissipation assembly is connected to the lower end of the observation box base.

[0005] Preferably, the positioning component is provided to facilitate the adjustment of the position of the pressure-resistant movable plate, and the heat dissipation component is provided to enable the observation box to have good heat dissipation performance to ensure that the internal equipment will not overheat during long-term operation.

[0006] Preferably, the positioning assembly includes a slider and a slide rail. The slider is fixed in front of the pressure-resistant movable plate. The slider is symmetrically arranged about the center of the pressure-resistant movable plate. The slider is slidably connected to the slide rail. The slide rail is arranged on the outer side of the pressure-resistant side plate. The slider slides back and forth in the slide rail, so that the pressure-resistant movable plate can be adjusted within a certain range.

[0007] Preferably, the positioning assembly also includes a positioning block, a threaded hole, and a threaded rod. The positioning blocks are fixed on the left and right sides of the pressure-resistant movable plate. A threaded hole is provided on the left side of the positioning block. The threaded hole is threadedly connected to the threaded rod. The pressure-resistant movable plate can be fixed or moved by rotating the threaded rod in the threaded hole.

[0008] Preferably, the positioning assembly also includes a knob and a protective pad. The left end of the threaded rod is fixed with a knob, and the right end of the threaded rod is connected with a protective pad. The protective pad is made of rubber. The elastic protective pad can prevent the end of the threaded rod from directly hitting the base of the observation box to prevent wear.

[0009] Preferably, the heat dissipation component includes a heat conductive sheet, and a heat conductive sheet is provided at the lower end of the observation box base, through which the heat on the observation box base can be quickly conducted.

[0010] Preferably, the heat dissipation component also includes heat dissipation fins, the lower end of the heat conductive sheet is connected to the heat dissipation fins, the heat dissipation fins are distributed at equal intervals, and the heat dissipation area can be increased by a plurality of heat dissipation fins to facilitate heat dissipation.

[0011] Preferably, the heat dissipation assembly also includes a mounting frame, a micro fan, and an air guide cover. The mounting frame is fixed to the back of the observation box base, a micro fan is installed at the lower end of the mounting frame, and an air guide cover is connected to the front of the micro fan. The wind force of the micro fan can accelerate the circulation of air at the bottom, thereby improving the heat dissipation efficiency.

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

[0013] 1. The transformer power frequency withstand voltage observation box uses a positioning component to facilitate the adjustment of the position of the withstand voltage movable plate, and the heat dissipation component allows the observation box to have good heat dissipation performance to ensure that the internal equipment will not overheat during long-term operation. Compared with the traditional isolation method, the observation window adopts a movable and adjustable design, which can not only meet the use requirements of transformers of different sizes, but also has high flexibility and can withstand the high voltage during the transformer power frequency withstand voltage test, ensuring the safety of operators and equipment;

[0014] 2. The transformer power frequency withstand voltage observation box has symmetrical slide rails on the withstand voltage side panels. The distance between the two withstand voltage movable panels can be changed by sliding the sliders, so as to shorten the distance between the observation window and the transformer, thereby facilitating observation. In addition, a lockable threaded rod is provided on the withstand voltage movable panel, so that it can be quickly fixed according to the needs of use, and it is also very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the pressure-resistant movable plate of the utility model;

[0017] Figure 3 It is a partial enlarged structural schematic diagram of the utility model;

[0018] Figure 4 This is a schematic diagram of the base structure of the observation box of the utility model.

[0019] In the figure: 1. observation box base; 2. pressure-resistant side panel; 3. first observation window; 4. pressure-resistant movable panel; 5. second observation window; 6. third observation window; 7. positioning assembly; 8. heat dissipation assembly; 701. slider; 702. slide rail; 703. positioning block; 704. threaded hole; 705. threaded rod; 706. knob; 707. protective pad; 801. heat conductive sheet; 802. heat dissipation fin; 803. mounting bracket; 804. micro fan; 805. air guide cover. DETAILED DESCRIPTION

[0020] See also Figure 1-3 The utility model provides a technical solution: a transformer power frequency withstand voltage observation box, including an observation box base 1, and also including a withstand voltage side plate 2, a first observation window 3, a withstand voltage movable plate 4, a second observation window 5, a third observation window 6, a positioning component 7, and a heat dissipation component 8; the upper end of the observation box base 1 is fixed with the withstand voltage side plate 2, the left side of the withstand voltage side plate 2 is provided with the first observation window 3, the upper end of the observation box base 1 is connected with the withstand voltage movable plate 4, the front of the withstand voltage movable plate 4 is provided with the second observation window 5, the left and right sides of the withstand voltage movable plate 4 are provided with the third observation window 6, the left and right sides of the withstand voltage movable plate 4 are connected with the positioning component 7, and the lower end of the observation box base 1 is connected with the heat dissipation component 8, the positioning component 7 is provided to facilitate the adjustment of the position of the withstand voltage movable plate 4, and the heat dissipation component 8 is provided to enable the observation box to have good heat dissipation performance to ensure the internal The equipment will not overheat when running for a long time. The positioning component 7 includes a slider 701 and a slide rail 702. The slider 701 is fixed in front of the pressure-resistant movable plate 4. The slider 701 is symmetrically arranged about the center of the pressure-resistant movable plate 4. The slider 701 is slidably connected to the slide rail 702. The slide rail 702 is arranged on the outside of the pressure-resistant side plate 2. The slider 701 slides back and forth in the slide rail 702, so that the position of the pressure-resistant movable plate 4 can be adjusted within a certain range. The positioning component 7 also includes a positioning block 703, a threaded hole 704, and a threaded rod 705. The positioning blocks 703 are fixed on the left and right sides of the pressure-resistant movable plate 4. A threaded hole 704 is opened on the left side of the positioning block 703. The threaded hole 704 is threadedly connected to the threaded rod 705. The threaded rod 705 rotates in the threaded hole 704, so that the pressure-resistant movable plate 4 can be fixed or movable.

[0021] See also Figure 3-4In this embodiment, the positioning component 7 also includes a knob 706 and a protective pad 707. The left end of the threaded rod 705 is fixed with a knob 706, and the right end of the threaded rod 705 is connected with a protective pad 707. The protective pad 707 is made of rubber. The elastic protective pad 707 can prevent the end of the threaded rod 705 from directly pressing against the observation box base 1 to prevent wear. The heat dissipation component 8 includes a heat conductive sheet 801. The lower end of the observation box base 1 is provided with a heat conductive sheet 801. The heat on the observation box base 1 can be quickly conducted through the heat conductive sheet 801. The heat dissipation component 8 also includes a heat dissipation sheet. The heat fin 802 and the lower end of the heat conducting sheet 801 are connected with the heat dissipation fin 802, and the heat dissipation fins 802 are distributed at equal intervals. A plurality of heat dissipation fins 802 can increase the heat dissipation area so as to dissipate the heat. The heat dissipation assembly 8 also includes a mounting frame 803, a micro fan 804, and an air guide cover 805. The mounting frame 803 is fixed to the back of the observation box base 1, and the micro fan 804 is installed at the lower end of the mounting frame 803. The front of the micro fan 804 is connected with the air guide cover 805. The wind force of the micro fan 804 can accelerate the circulation of the bottom air, thereby improving the heat dissipation efficiency.

[0022] When using the transformer power frequency withstand voltage observation box of the present technical solution, first place the faulty transformer on the observation box base 1, and then push the withstand voltage movable plate 4 in the direction of the withstand voltage side plate 2 at the same time. The slider 701 slides back and forth in the slide rail 702 to change the horizontal position of the withstand voltage movable plate 4 until it moves to the target position. Then, tighten the knob 706 and rotate the threaded rod 705 in the threaded hole 704 to allow the protective pad 707 to be pressed against the surface of the observation box base 1, thereby fixing the withstand voltage movable plate 4 and realizing the adjustment of the internal space.

[0023] Secondly, the heat is transferred through the heat conducting sheet 801 and cooperated with the heat dissipation fins 802 to achieve heat dissipation. Finally, the micro fan 804 can be started to accelerate the external air into the heat dissipation fins 802 through the air guide cover 805, so as to achieve accelerated heat dissipation during the test.

[0024] Through the above steps, the positioning component 7 is first used to facilitate the adjustment of the position of the voltage-resistant movable plate 4, and then the heat dissipation component 8 is used to allow the observation box to have good heat dissipation performance, so that maintenance personnel can perform power frequency voltage withstand tests and observe the transformer.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transformer power frequency withstand voltage observation box, comprising an observation box base (1), characterized in that: The invention also comprises a pressure-resistant side plate (2), a first observation window (3), a pressure-resistant movable plate (4), a second observation window (5), a third observation window (6), a positioning assembly (7), and a heat dissipation assembly (8); the pressure-resistant side plate (2) is fixed to the upper end of the observation box base (1); the first observation window (3) is arranged on the left side of the pressure-resistant side plate (2); the pressure-resistant movable plate (4) is connected to the upper end of the observation box base (1); the second observation window (5) is arranged in front of the pressure-resistant movable plate (4); the third observation window (6) is arranged on both the left and right sides of the pressure-resistant movable plate (4); the positioning assembly (7) is connected to both the left and right sides of the pressure-resistant movable plate (4); and the heat dissipation assembly (8) is connected to the lower end of the observation box base (1).

2. A transformer power frequency withstand voltage observation box according to claim 1, characterized in that: The positioning assembly (7) comprises a slider (701) and a slide rail (702). The slider (701) is fixed in front of the pressure-resistant movable plate (4). The slider (701) is symmetrically arranged about the center of the pressure-resistant movable plate (4). The slider (701) is slidably connected to the slide rail (702). The slide rail (702) is arranged on the outside of the pressure-resistant side plate (2).

3. A transformer power frequency withstand voltage observation box according to claim 2, characterized in that: The positioning assembly (7) further comprises a positioning block (703), a threaded hole (704), and a threaded rod (705). The positioning blocks (703) are fixed on both the left and right sides of the pressure-resistant movable plate (4). The left side of the positioning block (703) is provided with a threaded hole (704), and the threaded hole (704) is threadedly connected to the threaded rod (705).

4. A transformer power frequency withstand voltage observation box according to claim 3, characterized in that: The positioning assembly (7) further comprises a knob (706) and a protective pad (707); the knob (706) is fixed to the left end of the threaded rod (705); the protective pad (707) is connected to the right end of the threaded rod (705); and the protective pad (707) is made of rubber.

5. The transformer power frequency withstand voltage observation box according to claim 1, characterized in that: The heat dissipation component (8) comprises a heat conducting sheet (801), and the heat conducting sheet (801) is arranged at the lower end of the observation box base (1).

6. A transformer power frequency withstand voltage observation box according to claim 5, characterized in that: The heat dissipation component (8) further comprises heat dissipation fins (802), the lower end of the heat conductive sheet (801) is connected to the heat dissipation fins (802), and the heat dissipation fins (802) are distributed at equal intervals.

7. The transformer power frequency withstand voltage observation box according to claim 6, characterized in that: The heat dissipation assembly (8) further comprises a mounting frame (803), a micro fan (804), and an air guide cover (805); the mounting frame (803) is fixed to the back of the observation box base (1); the micro fan (804) is mounted at the lower end of the mounting frame (803); and the air guide cover (805) is connected to the front of the micro fan (804).

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