A moving spring armature component and its snap-on electromagnetic relay
An electromagnetic relay, snap-fit technology, applied in electromagnetic relays, electromagnetic relay details, relays, etc., can solve the problems of reduced creepage distance, easy breakdown when energized, unfavorable miniaturized application of relays, etc., to improve the impact voltage, The effect of improving the arc breaking ability
Active Publication Date: 2018-07-03
XIAMEN HONGFA ELECTRIC POWER CONTROLS
View PDF6 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In order to increase the voltage, some snap-in electromagnetic relays integrally inject the moving reed and the plastic, but these moving reeds and the armature are still not completely isolated, and they will leave a part of the moving reed exposed, which will affect the performance of the product
Therefore, these snap-in electromagnetic relays can only be used in the low-voltage field. In the high-voltage field (referring to a DC voltage above 450VDC), the basic insulation cannot be satisfied, and it is easy to break down when energized.
However, the high-voltage DC relays in the prior art usually adopt a solenoid structure, figure 1 It is a structural schematic diagram of a high-voltage direct current relay in the prior art, such as figure 1 As shown, in the high-voltage DC relay with this structure, the contact part 101 and the magnetic circuit part 102 are usually a ceramic sealed structure or a glue-filled sealed structure, and the inside is filled with air or vacuum. Since the inside is vacuum or pure gas, the pollution level It can be identified as Class I, and the required creepage distance can be greatly reduced
The high-voltage DC relay with this structure has complicated process and high cost of parts processing, and because the magnetic circuit part uses a solenoid, the square of its stroke is proportional to the number of ampere-turns, the same contact gap, and the coil volume of the solenoid structure It is much larger than the coil volume of the snap-in structure, so the overall volume of the relay is also large, which is not conducive to the miniaturization application of the relay
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0045] see Figure 2 to Figure 7 As shown, a kind of moving spring armature part of the present invention, this moving spring armature part 3 comprises moving spring, armature 22 and insulating part 5; The movable contacts 32 at both ends of the sheet; the middle part (i.e. the U-shaped bottom edge) of the movable reed 31 is embedded and fixed in the insulating member 5 to form a blind end, and the exposed part of the movable reed 31 (U-shaped The two sides) are arranged on one side of the insulating part 5 and towards one end of the insulating part 5, and the armature 22 is fixed on the other side of the insulating part 5 and towards the other end of the insulating part 5, and the movable reed 31 and the armature 22 are mutually The overlapping parts are completely insulated and isolated by the insulating member 5 . Since the movable reed 31 is in contact with the armature 22 through a blind end, usually an insulating layer with a thickness of 0.7mm can withstand an impulse ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a movable contact spring-armature component and a clapper-type electromagnetic relay. The electromagnetic relay comprises a base, a magnetic circuit part and a contact part. The magnetic circuit part is installed on the base. The contact part includes a movable contact spring and a static contact spring. The magnetic circuit part includes a coil, an armature and a yoke, and the armature is arranged at the knife edge of the yoke in a matching manner. The movable contact spring includes a bridge-type movable contact spring piece and movable contacts at the two ends of the movable contact spring piece. The static contact spring includes a first static contact spring for electrical lead-in and a second static contact spring for electrical lead-out, and static contacts fixed on the first static contact spring and the second static contact spring correspondingly match the two movable contacts of the movable contact spring. The electromagnetic relay further comprises an insulating component which fixes the movable contact spring and the armature together to form a movable contact spring-armature component, and insulates and isolates the movable contact spring from the armature. The clapper-type electromagnetic relay of the structure can be applied to high voltage without the need to increase the product size, and has the characteristics of low cost, small size and high production efficiency.
Description
technical field [0001] The invention relates to the technical field of relays, in particular to a moving spring armature part and a snap-on electromagnetic relay which can be used in the high-voltage field. Background technique [0002] In the classic snap-fit structure, the moving reed moves with the movement of the armature. Generally, the connection between the moving reed and the armature has direct contact, such as directly riveting the moving reed and the armature together, that is, metal to metal Direct riveting, which is convenient and reliable, and has the characteristics of stable parameters. In order to increase the voltage, some snap-in electromagnetic relays integrally inject the moving reed and the plastic, but these moving reeds and the armature are still not completely isolated, and they will leave a part of the moving reed exposed, which will affect the performance of the product . Therefore, these snap-in electromagnetic relays can only be used in the l...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & AuthorityPatents(China)
IPC IPC(8): H01H50/64H01H50/16
CPCH01H50/16H01H50/64
Inventor钟叔明刘伟华
OwnerXIAMEN HONGFA ELECTRIC POWER CONTROLS