CN2578964Y - Electromagnetic relay with left and right variable section structures - Google Patents

Abstract

The utility model relates to an electromagnetic relay with left and right variable cross section structures, which is provided with a magnetic circuit system, a contact system, a base, a pushing card and a casing, wherein, a partition wall is arranged on a base and space is divided into a left variable cross section cavity and a right variable cross section cavity by the base; one of the variable cross section cavities is installed in the magnetic circuit system; the other cavity is installed in the contact system; the inner part of the relay is isolated to become two variable cross section cavities which are used for holding the magnetic circuit system and the contact system by partition walls on the base and the casing; the action of an armature is that the armature is contacted with a movable spring by the pushing card through a pushing groove on each of the partition walls; the movable spring is pushed to realize the switching over of a contact. Through reasonable space allocation, the relay has the advantages of smaller volume, lower height and compact structure, and simultaneously, the high isolation requirements of VDE safety certification can be met. Parts and components are clamped to be installed, positioned and connected to make assembly simple and positioning accurate. The utility model is favorable for continuous mass production.

Description

Right and left variable-section structure electromagnetic relay

The utility model relates to a kind of electromagnetic relay, and especially a kind of carrier part framework adopts the miniaturized variable-section high-power electromagnetic relay of right and left variable-section cavities design.

Electromagnetic relay is used very extensive in various household electrical appliance, instrument, instrument and automatic control equipment as a kind of electromechanical compo.Current, a developing direction of electronic technology is exactly a high density packaging technique, dwindles machine volume, reduces production costs, and improves the market competitiveness.For satisfying the complete machine instructions for use, relay also develops towards miniaturization, high isolation, low-power consumption, antisurge, high-power direction.And existing typical small-sized high-power electromagnetic relay assembles the structure of moving the spring part after generally adopting circular riveted joint yoke unshakable in one's determination on yoke, this structure erection space is bigger, input with export between withstand voltagely generally have only 2500VAC, perhaps magnetic circuit system and contact system are divided into two parts, the centre separates with divider wall, withstand voltage improving, generally can reach about 4000VAC, they all exist structure compact inadequately, space utilization is insufficient, cause small product size inadequately little, the not high shortcoming of isolation.The CN1255233A patent application discloses a kind of relay with contact spring, and relay has electromagnet system and contact arrangement that has at least one quiet contact spring and at least one moving contact spring of a matrix, belt coil, iron core and an armature.The plate that this contact spring makes the plane respectively with do not have permanent bend to approach at identical plane internal fixation in this matrix.This contact spring is realized the closing of contact by the overlap joint of L shaped end section; In addition, quiet contact spring produces pre-stretching by a corresponding backstop on the matrix.The small-sized high-power sensitive-type direct current electromagnetic relay of a kind of Very Low Clearance of CNZL012207489 patent disclosure.Mainly form by contact system, magnetic circuit system, base and shell.Contact system comprises static contact spring piece, U-shaped movable contact spring, and inserts in the base by the guide groove on the base, and the U-shaped press-bending position of movable contact spring is inserted the base guide groove and fixed.Magnetic circuit system is packed in the cavity on the base, locatees in the base guide groove, and some glue is fixed.

The purpose of this utility model is to provide a kind of horizontally high isolates the low clearance structure, structure is more compact, and the load volume is higher, and the assembling adjustment is simpler, the more reliable electromagnetic relay of working.

The utility model is provided with magnetic circuit system, contact system, carrier part base (hereinafter to be referred as base), contact part push card (hereinafter to be referred as push card) and shell, magnetic circuit system is made of coil, yoke, armature, stage clip etc., contact system is by movable contact spring, the contact, formations such as dynamic and static lead-out tablet.Two section cavities about establishing partition wall on the said base and being, the section cavities magnetic circuit system of packing into, the cavity contact system of packing into separated by spaces.

Corresponding partition wall cooperation on middle partition wall and the shell, the relay inner space is divided into the cavity of two high isolation, before the relay sheath body, the cavity of dress magnetic circuit system and contact system all opens wide, compare with existing relay, the not only assembling of part, adjust more conveniently, quick, be very beneficial for realizing that automation produces in enormous quantities continuously; And current capacity after enough length spaces and height space are guaranteed the flexible and load raising of movable contact spring arranged.

Adopt the horizontal high low clearance structure of isolating, can guarantee that coil has enough coiling window space, effectively improves sensitivity; The location of magnetic circuit system is adopted and designed the self-align boss that cooperates with the base location on yoke, and whole magnetic circuit system and contact system are accurately located, and has simplified the assembly technology device effectively, has improved assembly precision; Designed the limiting position of armature structure on the base, within the limits prescribed with the moving qualification of the string of armature on the edge of a knife.

The section cavities of the dress magnetic circuit system that base and shell constitute, the end that the cross section is big is guaranteed to promote the rotation space of armature movable contact spring and realize conversion.Corresponding with dress magnetic circuit system one end, the heavy in section cavity is distributed to the contact system of contact system, switches space requirement thereby satisfied the contact.

A side of system is touched in the base attaching, be provided with the hole of inserting dynamic and static contact lead-out tablet, direct fixing lead-out tablet, compare with known plastic hot riveting fixation, the anti-intensity that plugs and unplugs that connects (QC) leading foot fast effectively improves, and has saved the expense of rivet hot equipment and operation, has reduced the complexity coefficient of lead-out tablet processing of dynamic and static contact and assembling simultaneously, and having improved the utilance of lead-out tablet material, is that automated production lays the foundation when reducing part manufacturing cost.

On the correspondence position of base and shell partition wall, be provided with the promotion groove, corresponding with the variable cross-section armature arm, the variable cross-section push card of packing into, magnetic circuit system and contact system that height is isolated connect.

Push card is provided with the boss of pack into armature and promotion groove, pack into and be provided with the distortion slot to make way in the middle of the boss of armature, set up defences and withdraw from buckle in the side, push card is provided with the enough big platform of an area in the moving spring position of promotion, guarantees to satisfy the space and the creepage distance requirement of the requirement of VDE reinforced insulation.

Armature is movably connected on the variable cross-section yoke by stage clip, and the limiting stand on the base satisfies the reliable and stable work of energy under strong vibration, the impact condition with the moving qualification of the string of armature on the edge of a knife within the limits prescribed.

Partition wall on base of the present utility model and the shell, with two section cavities of relay internal insulation for dress magnetic circuit system and contact system, the action of armature is connected by the movable contact spring of push card with itself and contact system by the promotion groove on the partition wall, promotes the switching that movable contact spring is realized the contact.By rational allocation of space, make relay littler at volume, highly lower, satisfied the high insulation request of VDE safety certification in the time of more compact structure.Adopt between parts to clamp the location and be connected, make assembling simpler, locate more accurately, be beneficial to continuous production in enormous quantities.

Fig. 1 is STRUCTURE DECOMPOSITION figure of the present utility model.

Fig. 2,3 is understructure figure.

Fig. 4～6 are outer casing construction drawing.

Fig. 7 is yoke structure figure.

Fig. 8 is armature structure figure.

Fig. 9,10 is the push card structure chart.

Below in conjunction with accompanying drawing the utility model is further described.

As shown in Figure 1, the main parts size of relay comprises: shell 1, fixed contact lead-out tablet 2, moving contact lead-out tablet 3, movable contact spring 4, contact 5, carrier part base 6, push card 7, stage clip 8, yoke 9, armature 10, bobbin 11, iron core 12, coil lead-out tablet 13 etc.

As Fig. 2, shown in 3, the midfeather 61 of the base 6 of horizontal high isolation structure with separated by spaces be about two section cavities, a section cavities 62 magnetic circuit system of packing into, a cavity 63 contact system of packing into, midfeather 61 cooperates with partition wall 14 on the shell shown in Fig. 4～6, the relay inner space is divided into the cavity of two high isolation.Before the relay sheath body, the cavity of dress magnetic circuit system and contact system all opens wide, and in the direct load hole 67 of dynamic and static contact lead-out tablet, compares with existing relay, the assembling of part, adjust more conveniently, quick, be very beneficial for realizing that automation produces in enormous quantities continuously.

Referring to shown in Figure 7, designed self-align boss 91 on the yoke 9 and cooperated with locator card slotted eye 64 on the base, accurately locate whole magnetic circuit system, simplified the assembly technology device effectively, improved assembly precision; Limiting position of armature boss 66 on the base with the moving qualification of the string of armature on the yoke edge of a knife within the limits prescribed.

Referring to Fig. 8, on the correspondence position of base and shell partition wall 14, be provided with and adorn the promotion groove 65 that magnetic circuit system and contact system connect, corresponding with the promotion hole 101 of variable cross-section armature 10, magnetic circuit system and contact system that the rear end boss of the variable cross-section push card 7 of packing into is isolated height connect, and are rotated by push card by armature and promote movable contact spring realization contact switching.

Push card 7 is provided with the boss that the armature of packing into promotes hole 101 and promotes groove 65, pack into and be provided with the distortion slot to make way in the middle of the boss of armature, set up defences and withdraw from buckle 73 in the side, push card is provided with the enough big platform of an area 71 in the moving spring position of promotion, guarantees can satisfy between armature and movable contact spring the air and the creepage distance requirement of the requirement of VDE reinforced insulation.

The correlated parts of magnetic circuit system all is assemblied on the yoke, has located yoke and has just located magnetic circuit system.As shown in Figure 4, a side of yoke 9 is provided with self-align boss 91 and cooperates with hole 64 on the base, can accurately locate whole magnetic circuit system.

Fig. 9, the 10th, push card 7 structure charts of the present utility model, the push card lower end is provided with the boss 72 in the armature hole of packing into, and the middle part is provided with the large tracts of land platform 71 that increases creepage distance, sets up defences at an end in the armature hole of packing into and withdraws from buckle 73.

Claims (8)

1, right and left variable-section structure electromagnetic relay, be provided with magnetic circuit system, contact system, carrier part base, contact part push card and shell, magnetic circuit system is made of coil, yoke, armature, stage clip, contact system is made of movable contact spring, sound contact lead-out tablet, two section cavities about it is characterized in that establishing on the said carrier part base partition wall and being with separated by spaces, section cavities magnetic circuit system of packing into, the cavity contact system of packing into.

2, right and left variable-section structure electromagnetic relay as claimed in claim 1 is characterized in that armature, yoke, push card and movable contact spring are variable section structure.

3, right and left variable-section structure electromagnetic relay as claimed in claim 1 is characterized in that having designed the self-align boss that cooperates with the base location on yoke.

4, right and left variable-section structure electromagnetic relay as claimed in claim 1 is characterized in that base is provided with the limiting position of armature structure, with the moving qualification of the string of armature on the edge of a knife within the limits prescribed.

5, right and left variable-section structure electromagnetic relay as claimed in claim 1 is characterized in that the base attaching touches a side of system, is provided with the hole of inserting dynamic and static contact lead-out tablet, directly fixing lead-out tablet.

6, right and left variable-section structure electromagnetic relay as claimed in claim 1 or 2 is characterized in that being provided with the promotion groove on the correspondence position of base and shell partition wall, and is corresponding with the variable cross-section armature arm, the variable cross-section push card of packing into.

7, right and left variable-section structure electromagnetic relay as claimed in claim 1, it is characterized in that push card is provided with the boss of pack into armature and promotion groove, packing into is provided with the distortion slot to make way in the middle of the boss of armature, sets up defences and withdraw from buckle in the side, and push card is provided with platform promoting moving spring position.

8, right and left variable-section structure electromagnetic relay as claimed in claim 1 or 2 is characterized in that armature is movably connected on the variable cross-section yoke by stage clip, and the limiting stand on the base with the moving qualification of the string of armature on the edge of a knife within the limits prescribed.

Images