Improved heavy-load low-temperature-rise magnetic latching contactor
A large load, magnetic holding technology, applied in the direction of electromagnetic relays, electromagnetic relay details, relays, etc., can solve potential safety hazards, can not effectively solve the problems of reed plate and contact heating, temperature rise, shortened service life, etc., to eliminate The effect of using potential safety hazards, reducing the current of a single set of contacts, and prolonging the service life of the product
Pending Publication Date: 2022-03-25
NINGBO CPX ELECTRONICS TECH
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Problems solved by technology
However, each static spring plate and each movable spring plate contact assembly of the traditional magnetic latching contactor adopts a single-piece structure, and two The contact, that is, the connection or disconnection of two sets of contacts between the static spring plate and the moving spring plate contact assembly, will find that there are many problems in actual use: 1. The static spring plate with a single-piece structure The current-carrying cross-sectional area of the contact assembly of the moving spring plate is small, and it cannot play a large current-carrying role, which will easily cause the spring plate to heat up and rise in temperature; 2. Only one pair of static spring plates and one pair of moving spring plate contacts It is difficult to reduce the current passing through a single set of contacts, resulting in increased heat generation and temperature rise of the contacts; 3. The outer surface of each static spring plate is not treated for heat dissipation, which will also cause the static spring plate fever and temperature rise
Therefore, the heating and temperature rise of the spring plate and contacts cannot be effectively solved, which will not only shorten the service life of the product, but also bring great safety hazards to the use of the product
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[0025] The embodiments of the present invention will be described in detail below according to the above-mentioned drawings.
[0026] Such as Figure 1 to Figure 11 As shown, 1. Base, 11. Anti-rotation rod, 12. Socket, 2. Yoke shell, 21. Pin, 22. Top hole, 3. Electromagnetic component, 31. Coil frame, 311. Shaft hole, 312. Embedded hole, 32. Upper coil, 33. Lower coil, 34. Magnetic block, 35. Upper static iron core, 36. Lower static iron core, 37. Moving iron core, 38. Magnetic isolation sheet, 4. Push rod frame, 41. Push rod, 5. Yoke iron plate, 51. Bottom hole, 6. Static spring plate, 61. First static contact, 62. Second static contact, 63. Third static contact, 64. Static spring Sheet, 65. Heat dissipation surface, 71. First moving spring plate contact assembly, 72. Second moving spring plate contact assembly, 73. Third moving spring plate contact assembly, 74. Bracket, 741. Separator, 75 .First moving contact, 76. Second moving contact, 77. Third moving contact, 78. Larg...
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The invention discloses an improved heavy-load low-temperature-rise magnetic latching contactor, which comprises a base, a yoke iron shell, an electromagnetic assembly, a yoke iron plate, a push rod frame, static spring plates, movable spring plate contact assemblies and the like, and is mainly characterized in that each static spring plate and each movable spring plate contact assembly are arranged to be of a double-reed laminated riveting structure, so that the two reeds simultaneously play a current-carrying role; the current-carrying sectional area is increased by increasing the thickness of the spring plate, so that the heating and temperature rise of the spring plate are reduced, and the product appearance can be reduced by reducing the width of the spring plate under the condition of ensuring the current-carrying sectional area requirement required by the corresponding load; meanwhile, each static spring plate is provided with at least three static contacts, and the push rod frame is provided with at least three movable spring plate contact assemblies so that the number of the static contacts can be equal to the number of the movable spring plate contact assemblies, and therefore parallel conductive connection or disconnection conductive connection of multiple sets of contacts which are in contact connection is formed, current passing through a single set of contacts and contact heating are reduced, and the contacts are kept in a low-temperature-rise state. The use potential safety hazard is eliminated; the service life is prolonged, and the like.
Description
technical field [0001] The invention relates to a magnetic holding contactor, in particular to an improved large-load low-rise magnetic holding contactor. Background technique [0002] At present, the structure of the magnetic holding contactor is mainly composed of a base, a yoke shell installed on the base, an electromagnetic component installed in the yoke shell, and a push rod frame movable under the electromagnetic component. There is a pair of static spring plates on the seat, a pair of movable spring plate contact assemblies on the push rod frame, and a yoke iron plate that is fixedly installed and separates the electromagnetic assembly and the push rod frame in the yoke iron shell; in this way, when the electromagnetic assembly When the rated excitation pulse voltage is connected, it will drive the push rod frame down, and synchronously drive a pair of movable spring plate contact assemblies to contact a pair of static spring plates, and then connect the conductive c...
Claims
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Login to View More IPC IPC(8): H01H50/02H01H50/54H01H50/12H01H50/16
CPCH01H50/02H01H50/54H01H50/12H01H50/16
Inventor杨奕上官靖宗
OwnerNINGBO CPX ELECTRONICS TECH