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Power grid harmonic filter

A harmonic filter and power grid technology, applied in the field of filtering, can solve problems such as increasing the probability of short circuit, and achieve the effect of reducing the probability of short circuit

Pending Publication Date: 2022-04-22
夏伦玖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a power grid harmonic filter to solve the problem that the presence of water vapor on the surface of the circuit module will increase the probability of short circuit when the power is turned on in the above background technology

Method used

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Embodiment Construction

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0049] In describing the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Straight", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", etc. or The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing t...

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Abstract

The invention relates to the technical field of filtering, in particular to a power grid harmonic filter which comprises a box body. An access door is detachably installed on the front wall of the box body, a main switch is fixedly installed at the position, above the access door, of the front wall of the box body, and a circuit module electrically connected with the main switch is installed in the box body; a heat dissipation opening is formed in the rear wall of the box body, a motor is fixedly mounted on the inner top wall of the box body, a fan for dissipating heat for the circuit module is fixedly mounted at the output end of the motor, and a mounting rod is horizontally and fixedly mounted on the inner wall of the box body. The main switch is turned off, the circuit module and the motor are both powered off, the first baffle rotates clockwise around the mounting rod under the action of the first driving mechanism, and the first baffle just blocks the heat dissipation opening under the action of the check block, so that damp air can be prevented from entering the box body, and the heat dissipation effect is improved. The effect of preventing water vapor from being attached to the surface of the circuit module is achieved.

Description

technical field [0001] The invention relates to the technical field of filtering, in particular to a power grid harmonic filter. Background technique [0002] Harmonic filter is a device used to filter out one or more harmonics in the power system; most of its structure is a combination of components such as inductors, capacitors and resistors, that is, passive filters. [0003] Filters are usually used in factories. Because the work in the factory is more tiring, the factory will give workers a vacation after working for a period of time, but the air is humid during the rainy season, and there are vents on the filter, so when the factory is on vacation When the circuit module is in the filter, the moist air will come into contact with the circuit module and adhere to the surface of the circuit module. Since the terminals of the circuit module are directly exposed to the air, when there is a large amount of water vapor on the surface of the circuit module, the The moment in...

Claims

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Application Information

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IPC IPC(8): H02J3/01H02B1/56H02B1/28H02B1/26
CPCH02J3/01H02B1/56H02B1/28H02B1/26Y02E40/40
Inventor 夏伦玖刘亚超
Owner 夏伦玖
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