Small bistable magnetic latching direct-current relay
A DC relay and bistable technology, applied in electromagnetic relays, electromagnetic relay details, relays, etc., can solve the problems of no resistance to large current short circuits and lightning strikes, and large volume of magnetically latched DC relays, so as to improve product quality and avoid Contact burning and welding, the effect of improving electrical life
Pending Publication Date: 2021-06-15
DONGGUAN ZHONGHUI RUIDE ELECTRONICS
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Problems solved by technology
[0005] The purpose of the present invention is to provide a small-sized bistable magnetically latching DC relay. The technical solution provided by the present invention solves the problem that the existing magnetically latching DC relay has a large volume and does not have the performance of magnetic latching against large current short circuits and lightning strikes. question
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[0071] Most of the existing bistable magnetic latching relay products are large in size. The main reason is that the micro switch takes up a large space; the push piece structure takes up a large space; It cannot be flexibly adapted to the product, and a certain amount of space will be wasted; the push pieces of the existing bistable magnetic latching products are all semi-closed structures, and the beams that push the shrapnel are very long and thick, and the fixed terminals need to be avoided in a large area. For the beam, in order to ensure the cross-sectional area and reduce the current density, the terminal needs to be widened, which increases the space and the product volume will become larger; in addition, the space in the thickness direction of the beam cannot be saved;
[0072] The performance difference between single contact and double contact is reflected in the anti-lightning current and short-circuit current. When a large current flows through the contact, the con...
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The invention discloses a small bistable magnetic latching direct-current relay, and relates to the technical field of relays. The small bistable magnetic latching direct-current relay comprises a base, and a winding assembly, a linkage assembly, an auxiliary contact assembly and a main contact assembly which are arranged on the base, wherein the main contact assembly comprises a first static contact piece, a first movable contact piece, a first movable contact spring and a pushing clamp; the auxiliary contact assembly comprises a second static contact piece, a second movable contact piece and a second movable contact spring; a push rod is arranged on the driving main body, and the end part of the push rod is arranged between the second static contact piece and the second movable contact spring; the second movable contact spring is made of an elastic material, and the winding assembly drives the linkage assembly to rotate and enables the push rod to drive the second movable contact spring to be far away from the second static contact piece; and when the linkage assembly rotates, the pushing clamp is driven to move at the same time, and the first movable contact spring is made to be away from or abut against the static contact piece. By adopting the technical scheme provided by the invention, the technical problems that an existing magnetic latching direct-current relay is relatively large in size and has no magnetic latching performance of resisting large-current short circuit and lightning stroke are solved.
Description
technical field [0001] The invention relates to the technical field of relays, in particular to a small bistable magnetic latching DC relay. Background technique [0002] Most of the existing bistable magnetic latching relay products are large in size. The main reason is that the micro switch takes up a large space; the push piece structure takes up a large space; It cannot be flexibly adapted to the product, and a certain amount of space will be wasted; the push pieces of the existing bistable magnetic latching products are all semi-closed structures, and the beams that push the shrapnel are very long and thick, and the fixed terminals need to be avoided in a large area. For the beam, in order to ensure the cross-sectional area and reduce the current density, the terminal needs to be widened, which increases the space and the product volume will become larger; in addition, the space in the thickness direction of the beam cannot be saved; [0003] The performance difference...
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Login to View More IPC IPC(8): H01H50/54
CPCH01H50/54
Inventor 陈合飞刘书章壇博治
Owner DONGGUAN ZHONGHUI RUIDE ELECTRONICS