CN202549729U - Relay - Google Patents

Abstract

The utility model relates to a relay, which comprises a bottom board. The bottom board is fixedly provided with a limit module. The limit module can prevent an armature from being away from a yoke. The relay also comprises a shell. The shell is fixedly provided with a first limit structure and a second limit structure. The first limit structure is used for preventing the armature from being away from the yoke and effectively prevents the occurrence of flux leakage phenomenon of the relay. The second limit structure is used for preventing the movement of the end foot of a coil. Due to the arrangement of the first limit structure and the second limit structure, the reliability and the stability of the relay are improved. The framework of the relay is provided with a groove and the groove increases the dielectric strength of the framework. The M terminal assembly and the yoke of the relay are smaller than those of a traditional relay, so that the relay is smaller and is more suitable for being installed on a circuit board.

Description

A kind of relay

Technical field

The utility model relates to a kind of relay.

Background technology

Relay is a kind of switch element that utilizes magnet control operating circuit break-make.At present, relay is widely used in fields such as industrial automation.

Relay generally is made up of magnetic circuit system and contact system.Magnetic circuit system comprises iron core, yoke, armature and coil, and contact system comprises M terminal assemblies, B terminal assemblies and movable contact spring.During relay power, iron core is inhaled armature get off, and makes the operating circuit at relay place be in closure state, connects with the mains; Lose magnetism after the relay outage, spring that is provided with on the relay or reed utilize self elastic force to come the armature pull-up, and the operating circuit at relay place is broken off.

But the inventor finds in practice, conventional means of relay withstand voltage less, and the anti shock and vibration performance is not ideal enough.

The utility model content

To above-mentioned defective, the utility model provides a kind of relay, and this relay dielectric strength is high, and the anti shock and vibration performance is high, good reliability.

A kind of relay comprises iron core, yoke, armature, coil, moving contact, fixed contact, M terminal assemblies, movable contact spring and shell, also comprises:

Base plate is set with spacing module on the said base plate, the position that said spacing module is provided with is near said armature place;

Skeleton, said skeleton is provided with groove;

Be set with first position limiting structure and second position limiting structure on the said shell; Wherein, the position of said first position limiting structure is near said armature; The said second spacing position limiting structure is positioned at said coil-end underfooting end.

Among the embodiment, said M terminal assemblies length is no longer than 29mm.

Among the embodiment, the wide pin length of said yoke is less than 9mm.

Among the embodiment, said first position limiting structure is used to limit the position of said armature.

Among the embodiment, said second position limiting structure is used to limit the position of said coil-end pin.

In the utility model, relay comprises base plate, is set with spacing module on the base plate, and this spacing module can prevent that armature breaks away from yoke.Relay also comprises shell, and first position limiting structure and second position limiting structure are arranged on this shell, and first position limiting structure is used to prevent that armature breaks away from armature, can effectively prevent the generation of relay leakage field phenomenon, reduces magnetic loss.Second position limiting structure is used to prevent moving of coil-end pin.First position limiting structure and second position limiting structure have increased the reliability and stability of relay.Skeleton on the relay is provided with groove, and this groove can increase the dielectric strength of skeleton.The M terminal assemblies of the relay that the utility model provides and yoke are all littler than the traditional relay, make relay miniaturization more, are more suitable for installing in the circuit board.

Description of drawings

In order to be illustrated more clearly in the technical scheme in the utility model; To do to introduce simply to the accompanying drawing of required use among the embodiment below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.

The structural representation of a kind of relay that Fig. 1 provides for the utility model;

Fig. 2 is the A-A ' end view of relay shown in Figure 1;

Fig. 3 is the structural representation of skeleton shown in Figure 1;

Fig. 4 is the structural representation of shell shown in Figure 1;

Fig. 5 is the structural representation of M terminal assemblies shown in Figure 1;

Fig. 6 is the structural representation of yoke shown in Figure 1.

Embodiment

To combine the accompanying drawing in the utility model below, the technical scheme in the utility model is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.

The utility model provides a kind of relay, and this relay dielectric strength is high, and the anti shock and vibration performance is high, good reliability, and the external form volume is little.

Describe in detail below in conjunction with description of drawings.

See also Fig. 1, Fig. 2, the structural representation of a kind of relay that Fig. 1 provides for the utility model.Fig. 2 is the A-A ' end view of relay shown in Figure 1.Like Fig. 1, shown in Figure 2, a kind of relay comprises iron core 1, yoke 2, armature 3, coil 4, moving contact 5, fixed contact 6, M terminal assemblies 7, movable contact spring 8 and shell 9, also comprises:

Base plate 10 is set with spacing module 12 on the base plate 10, the position that spacing module 12 is provided with is near armature 3 places, and this spacing module 12 is used to prevent that armature 3 breaks away from yoke 2, avoids the generation of relay leakage field phenomenon, reduces magnetic loss.The setting of spacing module 12 can strengthen the performance of relay shock resistance and anti-vibration, thereby effectively promotes the stability and the reliability of relay.

Wherein, shell 9 is linked to be whole structure with base plate 10.

See also Fig. 3, Fig. 3 is the structural representation of skeleton shown in Figure 1.As shown in Figure 3, relay comprises skeleton 11, and skeleton 11 is " worker " word shape.Skeleton 11 is provided with two grooves 13, lays respectively at the top and bottom of the inboard of skeleton 11, and groove 13 can promote the dielectric strength of relay.The dielectric strength of the relay of the utility model is high.Wherein, iron core 1 is inserted in the skeleton 11 and with yoke 2 and is fixed into one.

Relay also comprises: shell 9.Please consult Fig. 1 and Fig. 4 in the lump, Fig. 4 is the structural representation of shell shown in Figure 1.Like Fig. 1, shown in Figure 4, be set with two place's position limiting structures on the shell 9.Wherein, the position of first position limiting structure 14 on the shell 9 is near armature 3, and this position limiting structure 14 is used to prevent that armature 3 breaks away from yoke 2; Avoid producing the slit between armature 3 and the yoke 2; Thereby avoid the generation of relay leakage field phenomenon, reduce magnetic loss, strengthened the stability and the reliability of relay.Second position limiting structure 15 is positioned at coil 4 end underfooting ends, is used to prevent that coil 4 end placements of foot from moving.Conspicuous, first position limiting structure 14 and second position limiting structure 15 have increased the stability and the reliability of relay, and relay impact resistance ability is strengthened.

See also Fig. 5, Fig. 5 is the structural representation of M terminal assemblies shown in Figure 1.As shown in Figure 5, in the utility model, M terminal assemblies 7 length are no longer than 29mm; And the length of the M terminal assemblies 7 of conventional means of relay is 32mm; Obviously, the length of the M terminal assemblies 7 of the relay of the utility model is shorter than the length of traditional M terminal assemblies 7, is more suitable for welding in the circuit board; Use more conveniently, and can save material.

See also Fig. 6, Fig. 6 is the structural representation of yoke shown in Figure 1.As shown in Figure 6, in the utility model, the wide pin length of yoke 2 is less than 9mm; And the wide pin length of the yoke 2 of conventional means of relay is 11.8mm; Obviously, the length of the yoke 2 of the relay of the utility model is shorter than the length of traditional yoke 2, is more suitable for welding in the circuit board; Use more conveniently, and save material.The length of yoke 2 makes relay realize miniaturization less than 9mm, and suitable installation in the circuit board.

In the utility model, relay comprises base plate 10, is set with spacing module 12 on the base plate 10, and this position limiting structure 12 is provided with near the position of armature 3, and spacing module 12 can prevent that armature 3 breaks away from yoke 2.Relay also comprises shell 9, is set with two place's position limiting structures on this shell 9, and first position limiting structure 14 is positioned on the shell and is provided with near armature 3 places, is used to prevent that armature 3 breaks away from armature 2, can effectively prevent the generation of relay leakage field phenomenon; Second position limiting structure 15 is provided with near coil 4 end pin, is used to prevent moving of coil 4 end pin.First position limiting structure 14 and second position limiting structure 15 have increased the reliability of relay.Skeleton 11 on the relay is provided with groove 13, and groove 13 can increase the dielectric strength of skeleton.The M terminal assemblies 7 of the relay that the utility model provides and the size of yoke 2 are all littler than the traditional relay, are more suitable for installing in the circuit board, and save material.

More than a kind of relay that the utility model provided has been carried out detailed introduction; For one of ordinary skill in the art; Thought according to the utility model; The part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.

Claims (5)

1. a relay comprises iron core, yoke, armature, coil, moving contact, fixed contact, M terminal assemblies, movable contact spring and shell, it is characterized in that, also comprises:

Base plate is set with spacing module on the said base plate, the position that said spacing module is provided with is near said armature place;

Skeleton, said skeleton is provided with groove;

Be set with first position limiting structure and second position limiting structure on the said shell; Wherein, the position of said first position limiting structure is near said armature; Said second position limiting structure is positioned at said coil-end underfooting end.

2. relay according to claim 1 is characterized in that,

Said M terminal assemblies length is less than 29mm.

3. relay according to claim 1 is characterized in that,

The wide pin length of said yoke is less than 9mm.

4. relay according to claim 1 is characterized in that,

Said first position limiting structure is used to limit the position of said armature.

5. relay according to claim 1 is characterized in that,

Said second position limiting structure is used to limit the position of said coil-end pin.

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