Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of moving spring of improved electromagnetic relay is provided.
The said moving spring of the present invention is provided with two contact chips, a slice lead-out tablet and connector, connector is positioned at the middle part of two contact chips, two contact chips fuse, two contact chips are two free ends, the lower end of lead-out tablet is another free end, and two contact chips are connected with the upper end of lead-out tablet by the connector that is positioned at its middle part.
The upper end of said two contact chips and connector constitutes the seesaw structure.That connector can be selected for use is "T"-shaped, " I " shape, " worker " shape, inverted "L" shaped, " mouth " shape, " Contraband " shape connector, or its combination.End at two contact chips can be provided with fluting, and the end is " Contraband " shape.End at two contact chips is provided with the contact.
A kind of electromagnetic relay of using the said moving spring of the present invention is provided with case, coil component, pedestal, has the quiet spring and the armature assembly of fixed contact; The coil winding of coil component is on the bobbin that has " C " shape iron core, and the quiet spring, coil component and the pedestal that have fixed contact are injection-moulded in together, and two pole-faces of iron core are exposed; Armature assembly is supported on the pedestal, armature assembly is provided with the armature that is injection-moulded in together, the magnet steel of fitting with armature and the moving spring that is arranged on the armature side, the contact jaw of moving spring is connected with moving contact, armature assembly rotates by excitation, the demagnetization of coil component, drive moving spring motion, moving spring comprises connector and three free ends, and a free end is the moving spring leading foot of relay, other two free ends are the contact jaw of spring, and armature assembly is fixed on the pedestal by the connector of moving spring.
Compared with prior art, the invention has the advantages that the contact jaw of moving spring and the moving spring leading foot of relay in the prior art are arranged to one, omitted the production process that above-mentioned two parts is welded together with extras, saved the input of equipment, additional resistance that produces because of several parts joints and the rosin joint hidden danger that may exist have been eliminated, simplified the relay production technology greatly, made the further miniaturization of relay and its load does not reduce.Can further described moving spring be injection-moulded in armature, make spring and armature interlock, and have enough creepage distances at moving spring and armature residual gap, the operating efficiency and the stability of driver part have been improved, simplified production technology, improve ability volume ratio, reliability, production efficiency and the qualification rate of relay, helped large-scale production line operation.
Embodiment
The invention will be further described with the structure accompanying drawing for following examples.
Embodiment 1
As shown in Figure 1, moving spring 33 is the integrated design, and comprises three free ends, and an end is the moving spring leading foot 33a of electromagnetic relay, and two ends are contact jaw 33c, the 33d of spring in addition, also comprise connecting portion 33e, 33f, 33g and 33b; Two contact jaw 33c, the 33d of moving spring 33 and connecting portion 33e, 33f, 33g and 33b constitute " worker " shape structure; Connecting portion 33e, the 33f of moving spring 33,33g and the moving spring 33 of 33b supporting, allow two contact jaw 33c, 33d do the seesaw-type motion, and connecting portion 33e, 33f, 33g and 33b are electric conductor, make the relay load directly draw foot 33a, eliminated because of several parts and engaged the additional resistance that produces by the moving spring that contact jaw 33c or 33d are delivered to relay.
Embodiment 2
Fig. 2 has provided another embodiment of moving spring of the present invention, and this moving spring 33 is one, comprises three free ends, and an end is the moving spring leading foot 33a of relay, and two ends are contact jaw 33c, the 33d of spring in addition, also comprise connecting portion 33e and 33b; Two contact jaw 33c, the 33d of moving spring 33 and connecting portion 33e and 33b constitute "T"-shaped structure.The connecting portion 33e of moving spring 33 and the moving spring 33 of 33b supporting, allow two contact jaw 33c, 33d do the seesaw-type motion, and connecting portion 33e and 33b are electric conductor, make the relay load directly draw foot 33a, eliminated because of several parts and engaged the additional resistance that produces by the moving spring that contact jaw 33c or 33d are delivered to relay.
Embodiment 3
As depicted in figs. 1 and 2, contact jaw 33c, the 33d of moving spring 33 are " Contraband " shape; Two contact jaw 33c, the 33d portion of moving spring 33 are welded with the contact.
Embodiment 4
Fig. 3 and Fig. 4 have provided and have used armature assembly of the present invention, and armature assembly comprises the armature 31 that is injection-moulded in together, moving spring 33 and insulating material 32.Moving spring 33 is integrated, comprise three free ends, one end is the moving spring leading foot 33a of relay, two ends are contact jaw 33c, the 33d of spring in addition, be welded with contact 35 on contact jaw 33c, the 33d, also comprise connecting portion 33e, 33f, 33g and 33b, be used to support moving spring 33, allow two contact jaw 33c, 33d do the seesaw-type motion.Its operation principle is that armature 31 drives moving spring 33 motions, thereby drives contact 35 motions of contact jaw 33c, 33d on the moving spring 33, realizes cut-offfing of relay sound contact.In said process, connecting portion 33e, 33f, 33g and the 33b of moving spring 33 plays moving spring of supporting and conduction.
As shown in Figure 3, the creepage distance that armature 31 and moving spring are 33 for increasing above-mentioned creepage distance, can be done convex tendon or groove for shown in the black solid line 52 on insulating material 32, thereby obtains the creepage distance of black solid line 51 representatives as shown in Figure 3.
Embodiment 5
Fig. 5 has provided and has used a kind of electromagnetic relay example of the present invention, referring to Fig. 3,4, electromagnetic relay comprises case 4, armature assembly 3, quiet spring and coil component 1 is injection-moulded in together pedestal 2, and armature assembly 3 comprises armature 31 and moving spring 33 and the insulating material 32 that is injection-moulded in together.Moving spring 33 is the integrated design, comprise three free ends, one end is the moving spring leading foot 33a of relay, two ends are contact jaw 33c, the 33d of spring in addition, be welded with contact 35 on contact jaw 33c, the 33d, also comprise connecting portion 33e, 33f, 33g and 33b, be used to support moving spring, allow two contact jaws do the seesaw-type motion.Its operation principle is, magnetic drive armature 31 motions that coil component 1 produces, and armature 31 drives moving spring 33 motions, thereby drives contact 35 motions of contact jaw 33c, 33d on the moving spring 33, realizes cut-offfing of relay sound contact.In said process, connecting portion 33e, 33f, 33g and the 33b of moving spring 33 plays moving spring of supporting and conduction.
Embodiment 6
Similar to Example 1, referring to Fig. 1, its difference is that two contact jaw 33c, the 33d of moving spring 33 and connecting portion 33e and 33b constitute "T"-shaped structure.
Embodiment 7
Similar to Example 1, referring to Fig. 1, its difference is that contact jaw 33c, the 33d of moving spring 33 are " Contraband " shape structure.