Electromagnetic relay
A technology of electromagnetic relays and iron cores, applied in the direction of electromagnetic relays, electromagnetic relay details, relays, etc., can solve the problems of low adjustment speed of electromagnetic relays, failure rate of electromagnetic relay characteristics, etc., and achieve the reduction of failure rate of characteristics and adjustment of characteristics The effect of increasing speed
Inactive Publication Date: 2013-08-14
北京松下控制装置有限公司
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Problems solved by technology
[0008] The technical problem to be solved by the present invention is that the adjustment speed of the electromagnetic relay characteristics is low, and the failure rate of the electromagnetic relay characteristics is high
Method used
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Embodiment Construction
[0035] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0036] The difference between the electromagnetic relay of the embodiment of the present invention and the prior art is only the difference of the bending portion 32 of the yoke 3, such as Figure 6 The partial enlarged schematic diagram of the bending part 32 of the yoke iron 3 of the shown electromagnetic relay of the present invention, the magnetic pole surface 321 is smooth, and its flatness is zero; The angle α between the magnetic pole surface 321 and the vertical plane 41 is greater than 2 degrees and less than 5 degrees. Spend.
[0037] Because the scope of the included angle α between the magnetic pole surface 321 and the vertical plane 41 is greater than 2 degrees and less than 5 degrees, it ensures that the magnetic flux density in the magnetic circuit is moderate and is within the normal operating range of the electromagnetic relay; the flatn...
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The invention provides an electromagnetic relay, which comprises a frame body, a coil part with an iron core, yoke iron arranged at the lower side of the coil part in parallel with the coil part, a rotating spring leaf and armature iron, wherein the coil part is erected on the frame body; one end of the yoke iron bends upward and is connected with the first end of the iron core, and the other end of the yoke iron bends downward to form a bending part; the rotating spring leaf is connected with the yoke iron and forms a clamping part with the bending part of the yoke iron; one end of the armature iron is a clamping connection end and is clamped in the clamping part, and the other end of the armature iron is opposite to the second end of the iron core; and the electromagnetic relay is characterized in that the planeness of the surface where the bending part of the yoke iron is in contact with the armature iron is zero, the included angle between the surface and a vertical plane is larger than 2 DEG and smaller than 5 DEG, and the vertical plane is perpendicular to the center line of the iron core. Compared with the prior art, the electromagnetic relay provided by the invention has greatly improved property adjusting speed and property failure rate reduced by approximately 50 percent.
Description
technical field [0001] The invention relates to the technical field of electromagnetic relays, in particular to an electromagnetic relay. Background technique [0002] Electromagnetic relays are widely used in the fields of automatic control, remote control and telemetry, communication, broadcasting and aerospace technology, and play the role of control, protection, adjustment and transmission of information. [0003] Such as figure 1 and figure 2 As shown, the electromagnetic relay includes an armature 1, an iron core 2, a yoke 3, a coil part 4, a shaft reed 5, a frame body 8, a normally open static reed 9, a movable reed 10, a normally closed static reed 11 and drive rod 12. Wherein, the iron core 2 is put into the frame body 8 through the coil part 4, the yoke iron 3 is arranged on the lower side of the coil part 4 in parallel, one end of the yoke iron 3 is bent upwards and connected with the first end 21 of the iron core 2, the yoke The other end of the iron 3 is be...
Claims
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IPC IPC(8): H01H50/36
Inventor 刘小侠杨敏慧
Owner 北京松下控制装置有限公司