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Large power high insulation performance relay for solar photovoltaic inverter

A solar photovoltaic and inverter technology, applied in the direction of relays, electromagnetic relays, detailed information of electromagnetic relays, etc., can solve the problems that cannot meet the requirements of high-power switching capability, cannot directly meet the high insulation performance, and cannot meet the creepage distance , to achieve the effect of simple structure, convenient processing, and increased creepage distance

Active Publication Date: 2018-07-20
XIAMEN HONGFA ELECTROACOUSTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing relay structure has a low switching load voltage and cannot meet the requirements of high-power switching capability. On the other hand, it cannot directly meet the requirements of high insulation performance (high creepage distance), and its creepage distance cannot meet 800Va. c. Requirements under

Method used

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  • Large power high insulation performance relay for solar photovoltaic inverter
  • Large power high insulation performance relay for solar photovoltaic inverter
  • Large power high insulation performance relay for solar photovoltaic inverter

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Embodiment

[0034] See Figure 1 to Figure 11 As shown, a high-power high-insulation relay for a solar photovoltaic inverter of the present invention includes a base 1, a coil 21, an iron core 22, an armature part 3, a yoke 23, a moving spring 4 and a static spring 5; the coil 21 includes The coil frame and the enameled wire wound around the coil frame, the iron core 22 is inserted into the through hole of the coil frame, the yoke 23 is L-shaped, and one side of the yoke 23 is fixed to the iron core 22 at one end of the through hole of the coil frame. 21. The part formed by the cooperation of the iron core 22 and the yoke 23 is installed on the base 1; the armature part 3 is L-shaped, and the armature part 3 is fitted at the knife edge of the yoke 23, and one side of the armature part 3 is opposite to the movable spring 4. The other side of the armature part 3 is matched with the core 22; the armature part 3 is composed of an armature 31 as the other side of the armature part, a connecting...

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Abstract

The invention discloses a large power high insulation performance relay for a solar photovoltaic inverter. The relay includes a pedestal, a coil, an iron core, an armature part, a yoke, a moving spring and a static spring. The armature part is composed of an armature, a connection sheet and a plastic piece. The armature and the connection sheet are connected integrally via the plastic piece in aninsert injection molding method and the armature and the connection sheet are in insulation isolation in the plastic piece. The plastic piece is provided with at least one groove or at least one cordused for increasing the creeping distance between the armature and the connection piece. The static spring includes a static spring piece composed of a first coupling part used for fixing a static contact, a second coupling part used for serving as a leading-out pin and a bending part between the first coupling part and the second coupling part. When the static spring piece is mounted on the pedestal, the bending part is disposed outside a bottom board of the pedestal. The relay can meet a requirement for large power switching capability and can also meet a requirement for high insulation performance (large creeping distance), and also has characteristics of good arc distinguishing effect, simple structure and processing convenience.

Description

Technical field [0001] The invention relates to the technical field of relays, in particular to a high-power high-insulation relay for solar photovoltaic inverters. Background technique [0002] With the rapid development of the solar photovoltaic industry, higher requirements are put forward for the relays for solar photovoltaic inverters, especially the relay load. According to market needs, it is necessary to develop a high-power relay whose load The voltage reaches 800Va.c., and the switching current needs to reach at least 90A. The relays used need to comply with relevant standards, and at the same time, set the appropriate creepage distance and electrical clearance according to the actual use environment requirements (air pressure, pollution, etc.), and must have sufficient insulation performance to ensure the safety of people’s lives and properties and electrical performance Of stability. [0003] The existing relays for solar photovoltaic inverters usually adopt a clap-on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H50/18H01H50/64
CPCH01H50/18H01H50/64
Inventor 傅飞飞谭忠华朱艺青刘金枪
Owner XIAMEN HONGFA ELECTROACOUSTIC CO LTD
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