Mechanically maintained energy-saving high-voltage DC contactor
A high-voltage direct current, contactor technology, applied in the direction of relays, electromagnetic relays, detailed information of electromagnetic relays, etc., can solve problems such as limited product application fields, affecting product reliability, and large power consumption, so as to improve product reliability and expand Ambient temperature adaptability range and effects of improved vibration resistance
Active Publication Date: 2018-09-14
昆山国力源通新能源科技有限公司
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Problems solved by technology
However, when the above-mentioned DC contactor structure is closed, the drive coil needs to be in the energized state all the time, which not only consumes a lot of power, but also generates serious heat, which greatly affects the reliability of the product and limits the applicable field of the product.
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[0038] See attached figure 1 As shown, it is a schematic cross-sectional structure diagram of the mechanically maintained energy-saving high-voltage DC contactor of the present invention. The mechanically maintained energy-saving high-voltage direct current contactor includes a sealed housing 1 in which two stationary contacts arranged side by side, a movable movable contact piece 3, and a driving mechanism are installed in the inner cavity of the sealed housing 1. The movable contact piece 3 and the two static contacts 2 are respectively arranged opposite to each other in the vertical direction. The driving mechanism has a driving coil 4, a movable iron core 5, a push rod 6 and a return spring 7, and the driving coil 4 is positioned The movable iron core 5 is movably placed in the space enclosed by the drive coil 4, the push rod 6 is arranged vertically, and the push rod 6 is arranged at the lower part of the inner cavity of the sealed housing 1. The lower side is tightly fitt...
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The invention discloses a mechanical latching energy-saving high-voltage DC contactor, which comprises a sealing shell, wherein two fixed contacts, a movable contact plate and a drive mechanism are arranged in an inner cavity of the sealing shell; the drive mechanism comprises a drive coil, a movable iron core, a push rod and a reset spring; the drive coil is arranged at the lower part of an inner cavity of the sealing shell; the movable iron core is arranged in a space enclosed by the drive coil; the lower side of the push rod is arranged in the movable iron core in a tight fit manner and the upper side of the push rod is connected with the movable contact plate; the reset spring sleeves the outside of the push rod; a latching assembly also sleeves the outside of the push rod; and when the high-voltage DC contactor is in a closed working condition and the drive coil is powered off, the latching assembly can keep the movable contact plate and the two fixed contacts in a connected state, therefore, according to the high-voltage DC contactor, the drive coil only needs to be electrified at the moments of startup and disconnection, and the drive coil does not need to be provided with electricity after the movable contact plate is connected or disconnected with the two fixed contacts, thereby achieving the energy-saving target.
Description
Technical field [0001] The invention relates to the technical field of contactors, and specifically provides a mechanically maintained energy-saving high-voltage direct current contactor. Background technique [0002] At present, the structure of the DC contactor on the market mostly adopts the following: including a sealed shell, and two static contacts, a movable contact piece and a drive mechanism installed in the inner cavity of the sealed shell. The driving mechanism mainly includes a driving coil, a moving iron core, a push rod and a return spring. When the driving coil is energized, the magnetic force generated by the driving coil causes the push rod to move vertically upward, and drives the movable contact piece and the two static contacts at the same time Connected, the DC contactor is in a closed working state; when the drive coil is powered off, the push rod moves vertically downward under the action of the reset spring to reset, and drives the movable contact piece to...
Claims
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IPC IPC(8): H01H50/58
CPCH01H50/58
Inventor 顾春朋吴芳
Owner 昆山国力源通新能源科技有限公司