Common troubleshooting methods for Omron relays

First, the contact point is loosened and cracked

The contact point is the electrical contact part of the Omron relay to convert the load, and the contact point of some products is matched with each other by riveting pressure, and the key disadvantage is that the contact point is loose, the contact point is cracked or the error of the standard part is too large. This will jeopardize the relay's touch trustworthiness. The loosening of the shoveling point is caused by the unscientific standard of the mutual cooperation between the reed and the contact point or the operator's poor adjustment of the riveting work pressure. Contact splitting is caused by the strength of the raw material or the high pressure. For the contact points of different raw materials, the processing technology of different raw materials is selected, and some contact point raw materials with higher strength should be quenched and solved, and produced, riveted or welded at the unfolding contact points. The production of contact points should be careful, because the raw materials have a scale of public service, so the length of each disconnection should be considered after the resolution plan. The production of contact points should not show raw edges, pads and unrounded conditions.

The riveting deviation of the contact point is caused by the operator not aligning the mold properly, and the up, down, left and right touches are displaced. Contact point damage, environmental pollution, is caused by the failure to eradicate the oil environmental pollution and iron pins on the neat mold.

Brief summary:

Contact point electroerosion.

The load of the contact point conversion is mostly rational, at the moment of cutting off the inductive load, it will save the magnetic energy to form a high back EMF difference on both sides of the contact point, and the magnetic density between the contact points will be ignited by thermal breakdown, forming electric erosion, resulting in surface dents, forming loosening, and perhaps the two contact points can not be separated together, resulting in short circuit faults. To prevent electrical corrosion between contact points, you can choose to set resistors to extinguish spark power circuits, set resistor-capacitance spark power supply circuits, and other countermeasures. Dirt accumulation at the contact points. Dust and stains will accumulate on the contact points of the relay, which will transform the surface of the contact points into layers of gray-black air oxide film, forming loose relays, so it is necessary to clean the contact points on time, and carbon tetrachloride liquid can be selected, which can ensure the excellent contact characteristics of the contact points.

Second, the main parameters of the relay are not stable

A tenth of the spare parts of the electromagnetic relay are riveted to cooperate with each other, and the key problem is that the riveting place is loose or the compressive strength difference is blended. This kind of problem will make the main parameters of the relay unstable, the main parameters of the high and low temperature test will change greatly, and the resistance to damping vibration and impact resistance will be poor. The key causes of such problems are riveting errors, poor placement of parts, poor quality of tooling tools or inaccurate installation. Therefore, before riveting and welding, it is necessary to carefully check whether the tool and the riveted parts are in accordance with the regulations.

3. Deformation of the software riveting of the electromagnetic induction system

After riveting, the parts are bent, twisted, and coarse and black, which leads to difficulties in the assembly line or conditioning of the next process, and even leads to reimbursement. The main reason for this kind of problem is that the riveted parts are long, too short or uneven in riveting, the error of the assembly line or the design scheme standard is incorrect, and the parts are not placed properly. When riveting, the actual operator should be the first to check the spare parts standard, appearance, whether the mold is accurate, if the mold is not installed in time, it will endanger the quality of the assembly line of the electromagnetic induction system software or the core deformation, pier thickness.

Common troubleshooting methods for Omron relays

Common troubleshooting methods for Omron relays

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