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Low noise relay

A technology of relays and electromagnetic relays, applied in the direction of relays, electromagnetic relays, detailed information of electromagnetic relays, etc., can solve the problems of complex and expensive relay manufacturing

Inactive Publication Date: 2005-09-07
TE CONNECTIVITY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a relay would appear to be relatively complex and expensive to manufacture, requiring a specially designed armature, and precise placement of the pad 44 before the armature 40 is attached to the reed 42

Method used

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  • Low noise relay
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Examples

Experimental program
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Embodiment Construction

[0016] refer to Figure 5 -7. The electromagnetic relay 2 according to the first embodiment of the present invention includes a sound insulation device 20 placed between the relay armature 4 and the moving reed 6 . In operation, when the relay is energized, the armature 4 is drawn towards the relay electromagnetic subassembly (which may include the relay coil or winding 10, the relay core 8 and the relay bobbin 22). When the relay is de-energized, the reed returns the armature 4 to the Figure 5 and 6 show its normal position. The sound isolation device 20 reduces the noise generated by the relay during energization (ie, "on") and de-energization (ie, "off") cycles. The reduction in noise due to impact will be cumulative because resonances caused by the relay structure (including the base, reed, cover and frame) can amplify the noise.

[0017] Noise reduction can be achieved by using the various relays of the present invention without greatly increasing the cost and complex...

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PUM

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Abstract

An electromagnetic relay (2) includes noise dampening means (20 / 32 / 34), such as an elastomeric insert, a noise dampening composition or mataerial, or a resin located at the juncture between the relay armature (4) and the spring (6), which noise dampening means (20 / 32 / 34) reduces noise generated by contact between the armature (4) and the spring (6) as the relay (2) is energized and the armature (4) is pulled into the core (8) and when the relay (2) is de-energized and the spring (6) biases the armature (4) away from the core (8).

Description

technical field [0001] The present invention relates generally to an electromagnetic relay, and more particularly to a relay with reduced noise during switching on and off. More specifically, the present invention relates to an electromagnetic relay with sound insulating means, such as elastomeric compositions, curable resins, or other mechanically damping compositions or materials, wherein said sound insulating means are placed between the relay armature and the relay Between the moving reeds inside to eliminate noise. Background technique [0002] Although reliable and efficient from an electrical and mechanical point of view, relays in the prior art (as in figure 1 -3) is used in specific occasions, and the noise generated during mating and non-mating may be unnecessary. For example, relays of this type, and similar relays with similar applications, may generate audible noise when used in the vicinity of the passenger compartment of a motor vehicle. Various measures ha...

Claims

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Application Information

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IPC IPC(8): H01H50/02H01H50/28H01H50/30
CPCH01H50/305H01H50/28H01H50/04
Inventor 罗伯特·D·艾尔贝克罗杰·L·思拉什
Owner TE CONNECTIVITY CORP