阅读说明：本技术 继电器 (Relay with a movable contact ) 是由 姚保同 陆涛 汪鲁建 刘斯源 于 2020-06-09 设计创作，主要内容包括：本发明公开了一种继电器,所述继电器包括：动触点和多个静触点,所述动触点设置在所述继电器本体的内侧且可选择地与多个所述静触点中的至少两个连接；灭弧装置,所述灭弧装置为多个,每个所述灭弧装置设置在对应的所述静触点的外侧且包括：罩体和磁性件,所述罩体彼此正对的两个侧壁中的至少一个上设置有磁性件。由此,使每个静触点外均对应设置有一个灭弧装置,并使灭弧装置的罩体内具有至少一个磁性件,针对性地对每一个静触点进行灭弧,以有效地提高灭弧装置的磁场强度,使每一个静触点的灭弧效果均更好,适用于高压、大电流的使用环境,提升了继电器的切断能力,降低了继电器的故障风险,提高了继电器的使用安全性。(The invention discloses a relay, which comprises: the movable contact is arranged on the inner side of the relay body and is selectively connected with at least two of the plurality of the fixed contacts; arc control device, arc control device is a plurality of, every arc control device sets up in corresponding the outside of stationary contact just includes: the magnetic shield comprises a shield body and a magnetic part, wherein the magnetic part is arranged on at least one of two side walls of the shield body, which are opposite to each other. From this, make every stationary contact all correspond outward and be provided with an arc control device to make arc control device's the internal at least one magnetic part that has of cover, pertinence ground carries out the arc extinguishing to each stationary contact, in order to improve arc control device's magnetic field intensity effectively, make the arc extinguishing effect of each stationary contact all better, be applicable to the service environment of high pressure, heavy current, promoted the cutting off ability of relay, reduced the fault risk of relay, improved the safety in utilization of relay.)

1. A relay (100), comprising:

a relay body (10), the relay body (10) comprising: a movable contact (12) and a plurality of fixed contacts (11), wherein the movable contact (12) is arranged at the inner side of the relay body (10) and is selectively connected with at least two of the fixed contacts (11);

the arc extinguishing device (20), arc extinguishing device (20) are a plurality of, every arc extinguishing device (20) set up in the outside of corresponding stationary contact (11) and include: the magnetic shielding cover comprises a cover body (21) and a magnetic part (22), wherein the magnetic part (22) is arranged on at least one of two side walls of the cover body (21) which are opposite to each other.

2. The relay (100) according to claim 1, wherein the direction of the magnetic induction lines formed between the two magnetic members (22) in the plurality of arc extinguishing devices (20) is the same.

3. The relay (100) according to claim 1, wherein the cover (21) comprises a first end portion (211), a second end portion (212), and a connecting portion (213) connecting the first end portion (211) and the second end portion (212), a side wall of the first end portion (211) is opposite to a side wall of the second end portion (212), and the magnetic member (22) is disposed on the side wall of the first end portion (211).

4. The relay (100) according to claim 1, wherein the arc extinguishing device (20) comprises at least two magnetic members (22), the cover (21) comprises a first end portion (211), a second end portion (212) and a connecting portion (213) connecting the first end portion (211) and the second end portion (212), a side wall of the first end portion (211) is opposite to a side wall of the second end portion (212), and the two magnetic members (22) are respectively disposed on the side wall of the first end portion (211) and the side wall of the second end portion (212).

5. The relay (100) according to claim 1, wherein the relay body (10) further comprises: casing (13), at least part setting of casing (13) is in a plurality of stationary contact (11) periphery, be provided with on casing (13) and be located adjacent two holding tank (131) between stationary contact (11), at least part of cover body (21) stretches into in holding tank (131) in order to fix on casing (13).

6. The relay (100) according to claim 5, wherein the relay (100) comprises: a first armature (16) and a second armature, wherein the first armature (16) is positioned at one side of the movable contact (12) facing away from the fixed contact (11), the second armature is positioned at one side of the movable contact (12) facing towards the fixed contact (11), and the first armature (16) and the second armature are suitable for generating magnetic attraction force to press the movable contact (12) on the corresponding fixed contact (11) when the movable contact (12) conducts the corresponding fixed contact (11).

7. The relay (100) according to claim 6, wherein the first armature (16) is fixed to the movable contact (12) and the second armature is disposed within the receiving groove (131).

8. The relay (100) according to claim 1, wherein the relay body (10) comprises: a driving member (14), the movable contact (12) and the fixed contact (11) are oppositely arranged and spaced, the driving member (14) is connected with the movable contact (12) and is suitable for driving the movable contact (12) to move towards or away from the fixed contact (11).

9. The relay (100) according to claim 8, wherein the driver (14) comprises: the movable contact device comprises a fixed seat (141), an elastic piece (142) and a driving rod (143), wherein one end of the elastic piece (142) is fixed on the fixed seat (141), the other end of the elastic piece (142) pushes against the movable contact (12), and the driving rod (143) is fixed on the fixed seat (141) to push the fixed seat (141) to move.

10. The relay (100) according to claim 9, wherein the relay body (10) further comprises: the fixing support (15), elastic component (142) set up in fixing support (15), the lower extreme of fixing support (15) with fixing base (141) link to each other, the upper end of fixing support (15) is provided with guide way (151), be provided with on first armature (16) with guide way (151) complex guide block (161).

Technical Field

The invention relates to the technical field of relays, in particular to a relay.

Background

In the related art, an arc extinguishing device is arranged in the relay, the sealed cavity is generally designed to be of a rectangular structure, and permanent magnets are arranged on two sides of a short edge or two sides of a long edge so as to drive electric arcs to deflect towards two sides or the middle, so that arc extinguishing is realized. However, when the relay is reverse loaded, the risk of arcing is high.

Of course, the arc extinguishing device may be disposed outside the sealed cavity to reverse the direction of the arc, but the arc extinguishing device with this structure has a low magnetic field strength, and has a poor arc extinguishing effect and low safety in use when a high-voltage and high-current cutoff operation is performed.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, it is an object of the invention to provide a relay which is safer to use.

A relay according to an embodiment of a first aspect of the present invention includes: a relay body, the relay body comprising: the movable contact is arranged on the inner side of the relay body and is selectively connected with at least two of the plurality of the fixed contacts; arc control device, arc control device is a plurality of, every arc control device sets up in corresponding the outside of stationary contact just includes: the magnetic shield comprises a shield body and a magnetic part, wherein the magnetic part is arranged on at least one of two side walls of the shield body, which are opposite to each other.

According to the relay provided by the embodiment of the invention, the arc extinguishing device is correspondingly arranged outside each static contact, the at least one magnetic part is arranged in the cover body of the arc extinguishing device, and arc extinguishing is carried out on each static contact in a targeted manner, so that the magnetic field intensity of the arc extinguishing device is effectively improved, the arc extinguishing effect of each static contact is better, the relay is suitable for a high-voltage and high-current use environment, the cutting-off capability of the relay is improved, the fault risk of the relay is reduced, and the use safety of the relay is improved.

According to some embodiments of the present invention, the magnetic induction lines formed between the two magnetic members in the plurality of arc extinguishing devices have the same direction.

In some embodiments, the cover comprises: the cover body includes first end, second end and connects the connecting portion of first end and second end, the lateral wall of first end is just right with the lateral wall of second end, the magnetic part set up in the lateral wall of first end.

In some embodiments, the arc extinguishing device includes at least two magnetic members, the cover body includes a first end portion, a second end portion, and a connecting portion connecting the first end portion and the second end portion, a sidewall of the first end portion faces a sidewall of the second end portion, and the two magnetic members are respectively disposed on the sidewall of the first end portion and the sidewall of the second end portion. In some embodiments, the relay body further comprises: the casing, at least part setting of casing is in a plurality of the stationary contact periphery, be provided with on the casing and be located adjacent two the holding tank between the stationary contact, at least part of the cover body stretches into in the holding tank with fixing on the casing.

According to some embodiments of the invention, the relay comprises a first armature and a second armature, the first armature is located on a side of the movable contact facing away from the fixed contacts, the second armature is located on a side of the movable contact facing the fixed contacts, and the first armature and the second armature are adapted to generate magnetic attraction force to press the movable contact against the corresponding fixed contacts when the movable contact conducts the corresponding fixed contacts.

Further, the first armature is fixed on the moving contact, and the second armature is arranged in the accommodating groove.

In some embodiments, the relay body further comprises: the movable contact and the fixed contact are oppositely arranged and spaced, and the driving piece is connected with the movable contact and is suitable for driving the movable contact to move towards or away from the fixed contact.

Optionally, the driver comprises: the movable contact comprises a fixed seat, an elastic piece and a driving rod, wherein one end of the elastic piece is fixed on the fixed seat, the other end of the elastic piece pushes against the movable contact, and the driving rod is fixed on the fixed seat so as to push the fixed seat to move.

In some embodiments, the relay body further comprises: the fixed bolster, the elastic component sets up in the fixed bolster, the fixed bolster lower extreme with the fixing base links to each other, the upper end of fixed bolster is provided with the guide way, be provided with on the first armature with guide way complex guide block.

Further, the fixing base is configured as an insulating member.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic cross-sectional view of a relay according to an embodiment of the invention;

FIG. 2 is a schematic diagram of a relay according to an embodiment of the invention, shown disassembled;

FIG. 3 is a schematic diagram of a housing of a relay according to an embodiment of the invention;

FIG. 4 is a schematic diagram of the mating of an arc extinguishing device of a relay with a housing according to an embodiment of the invention;

FIG. 5 is a schematic diagram of the mating of the movable contact and the driver of a relay according to an embodiment of the invention;

fig. 6 is a schematic top view of an arc extinguishing device of a relay according to an embodiment of the present invention.

Reference numerals:

the relay (100) is provided with a relay,

the relay body 10, the stationary contact 11, the movable contact 12, the housing 13, the receiving groove 131, the driving member 14, the fixing seat 141, the elastic member 142, the driving rod 143, the fixing bracket 15, the guide groove 151, the first armature 16, the guide block 161,

the arc extinguishing device 20, the cover 21, the first end 211, the second end 212, the connecting portion 213 and the magnetic member 22.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

A relay 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 6.

As shown in fig. 1 and 2, a relay 100 according to an embodiment of the first aspect of the present invention includes: a relay body 10 and an arc extinguishing device 20.

Wherein, the relay body 10 includes: a movable contact 12 and a plurality of stationary contacts 11, the movable contact 12 being disposed inside the relay body 10 and selectively connected with at least two of the plurality of stationary contacts 11.

Specifically, the number of the fixed contacts 11 of the relay 100 may be plural, a movable contact 12 selectively moving toward or away from the plural fixed contacts 11 is correspondingly disposed below the plural fixed contacts 11, so as to electrically connect at least two fixed contacts 11 to be energized through the movable contact 12, and the plural fixed contacts 11 are conducted through the movable contact 12, so as to conduct the current.

It is understood that the stationary contact 11 may be configured as a plurality in parallel in sequence, or may be configured as a plurality in series.

The arc extinguishing device 20 is plural, and each arc extinguishing device 20 is disposed outside the corresponding stationary contact 11 and includes: the magnetic shield comprises a shield body 21 and a magnetic part 22, wherein the magnetic part 22 is arranged on at least one of two side walls of the shield body 21, which are opposite to each other.

That is, each of the stationary contacts 11 is externally provided with an arc extinguishing device 20, and an arc generated when the movable contact 12 and the stationary contact 11 are separated can be extinguished by the corresponding arc extinguishing device 20. It should be noted that the arc is a gas discharge phenomenon, and has a certain harm to the electric appliance. Arc extinction means that the arc is elongated by the action of the magnetic field force of the magnetic field of the arc extinction device 20, so that the arc is extinguished, and the influence of the arc on the electric appliance is solved. If the electric arc is a direct current electric arc, after the electric arc is lengthened, the static volt ampere characteristic moves upwards, and the electric arc can be extinguished; if the arc is an alternating current arc, after the arc is elongated, the arc is difficult to reignite due to the increase of the arcing voltage.

The magnetic part 22 is arranged on at least one of the two side walls of the cover body 21 opposite to each other, the magnetic part 22 is positioned between the two side walls of the cover body 21 opposite to each other, a magnetic field can be generated in the cover body 21, and an electric arc generated when the movable contact 12 is separated from the fixed contact 11 is pulled to a position far away from the movable contact 12 and the fixed contact 11 under the action of the magnetic field force, so that the electric arc is elongated to accelerate the arc extinction, and the arc extinction effect of the relay 100 is improved.

In one embodiment, the cover 21 includes a first end portion 211, a second end portion 212, and a connecting portion 213 connecting the first end portion 211 and the second end portion 212, a sidewall of the first end portion 211 is opposite to a sidewall of the second end portion 212, a magnetic member 22 is disposed on the sidewall of the first end portion 211, the magnetic member 22 is located between the first end portion 211 and the second end portion 212, and a side of the magnetic member 22 facing away from the sidewall of the second end portion 212 is in contact with the first end portion 211, so that the second end portion 212 forms a polarity different from a polarity of the magnetic member 22 facing the second end portion 212.

For example, the side of the magnetic member 22 facing the second end 212 is an N pole, the side of the magnetic member 22 contacting the first end 211 is an S pole, the second end 212 forms a polarity of the S pole, a magnetic field with a magnetic induction line is formed in the cover 21 and faces the second end 212 from the magnetic member 22, the stationary contact 11 is located in the magnetic field, and when the movable contact 12 is separated from the stationary contact 11, the generated arc is elongated by the magnetic field force, so that arc extinction is accelerated.

It should be understood that the cover 21 is provided with only one magnetic member 22 as an embodiment of the present invention, and the magnetic members 22 provided at both ends of the cover 21 can increase the magnetic field strength.

In the embodiment shown in fig. 6, the two magnetic members 22 are respectively disposed on the opposite side walls of the first end portion 211 and the second end portion 212, and the opposite sides of the two magnetic members 22 have different polarities, so that the magnetic field intensity inside the cover 21 is increased compared to the case where only one magnetic member 22 is disposed. The cover 21 has a magnetic gathering effect, and the cover 21, in combination with the magnetic member 22, further increases the magnetic field strength in the cover 21, thereby improving the arc extinguishing effect of the arc extinguishing device 20.

The current directions of the two electrically connected stationary contacts 11 are respectively inflow and outflow, the directions of the magnetic induction lines formed between the two magnetic members 22 in the two arc extinguishing devices 20 are the same, so that the action directions of the magnetic field forces borne by the arcs generated in the two arc extinguishing devices 20 are deviated from each other, the arcs at the two positions move towards opposite directions, the arcs are elongated and arc is rapidly extinguished, meanwhile, the relay 100 is nonpolar, and the use safety and the adaptability are improved. According to the relay 100 of the embodiment of the invention, each static contact 11 is correspondingly provided with one arc extinguishing device 20, the cover body 21 of each arc extinguishing device 20 is provided with at least one magnetic part 22, and arc extinguishing is performed on each static contact 11 in a targeted manner, so that the magnetic field intensity of each arc extinguishing device 20 is effectively improved, the arc extinguishing effect of each static contact 11 is better, the relay 100 is suitable for a high-voltage and high-current use environment, the cutting-off capability of the relay 100 is improved, the fault risk of the relay 100 is reduced, and the use safety of the relay 100 is improved.

In some embodiments, the relay body 10 further includes: housing 13, at least part of housing 13 is disposed at the periphery of a plurality of stationary contacts 11, housing 13 is provided with accommodating groove 131 between two adjacent stationary contacts 11, and at least part of cover 21 extends into accommodating groove 131 to be fixed on housing 13.

In other words, be provided with a plurality of through-holes on the casing 13, all be provided with a stationary contact 11 in every through-hole, and stationary contact 11 and casing 13 sealing connection, and then set up holding tank 131 between two adjacent stationary contacts 11, so that the cover body 21 of the arc control device 20 that each stationary contact 11 corresponds can stretch into in the holding tank 131, thereby improve the fixed effect of arc control device 20 on casing 13, so that the structure of relay 100 is more reasonable, make the arc extinguishing effect of fixing a plurality of arc control devices 20 on casing 13 more stable, reliable.

Referring to fig. 1 to 4, the first end portion 211 of the cover 21 extends into the receiving groove 131, the magnetic element 22 disposed at the first end portion 211 is located in the receiving groove 131, the second end portion 212 is disposed at a side of the housing 13 away from the receiving groove 131, the magnetic element 22 disposed at the second end portion 212 is located between the second end portion 212 and the housing 13, and polarities of opposite sides of the two magnetic elements 22 are different. Thereby, the magnetic field strength of the arc extinguishing device 20 is enhanced by the magnetic member 22 adjacent to the first end portion 211 and the magnetic member 22 adjacent to the second end portion 212 to further enhance the arc extinguishing effect.

In addition, it should be noted that, by providing the accommodating groove 131, a plurality of airflow chambers communicated with each other are correspondingly formed inside the housing 13, and gas can flow through the airflow chambers, however, the metal substance that is electrically ablated is isolated outside the housing 13, so that the insulation and voltage resistance after the damage test of the metal substance generated by the relay 100 through electrical service life, short circuit and the like are improved, and meanwhile, the distance between two adjacent stationary contacts 11 is further increased by the accommodating groove 131, so that the creepage distance is increased, and the arc extinguishing effect can be further improved.

As shown in fig. 4, the upper end of each stationary contact 11 protrudes from the upper end surface of the corresponding cover 21. Like this, make the upper end of stationary contact 11 protrusion cover 21's up end to make the electric connection of the part on every side of being connected with stationary contact 11 and stationary contact 11 more convenient, and avoid cover 21 and the contact of part on every side, thereby avoid appearing the short circuit, further improve relay 100's job stabilization nature.

In some embodiments, the plurality of stationary contacts 11 includes: the cover body 21 that is located the outer of positive pole stationary contact and the cover body 21 that is located the outer of negative pole stationary contact are laminated and set up to positive pole stationary contact and negative pole stationary contact, and the lateral wall setting that both laminated mutually is in holding tank 131.

In other words, in the plurality of stationary contacts 11, the adjacent covers 21 of the positive stationary contact and the negative stationary contact are disposed in one accommodating groove 131, so that on one hand, the number of the slots on the housing 13 can be reduced, the production cost of the housing 13 is lower, and the structural strength of the housing 13 is higher; on the other hand, two adjacent cover bodies 21 can be attached to and arranged in the same accommodating groove 131, so that the fixing effect of the adjacent arc extinguishing devices 20 in the accommodating groove 131 can be improved.

As shown in fig. 5, the relay body 10 further includes: and a driving member 14, the movable contact 12 being disposed opposite and spaced apart from the fixed contact 11, the driving member 14 being connected to the movable contact 12 and adapted to move the movable contact 12 toward or away from the fixed contact 11.

Specifically, the housing 13 defines a sealed cavity inside, the movable contact 12 and at least part of the driving member 14 are disposed in the sealed cavity, the movable contact 12 is spaced apart from the fixed contact 11 in the initial state, a certain electrical gap is maintained, and the movable contact 12 can be moved toward or away from the fixed contact 11 by the driving member 14, so that the on-off control of the relay 100 is simpler and more convenient.

Further, the relay 100 includes: a first armature 16 and a second armature, the first armature 16 is positioned at one side of the movable contact 12 facing away from the fixed contact 11, the second armature is positioned at one side of the movable contact 12 facing the fixed contact 11, the first armature 16 and the second armature are suitable for generating magnetic attraction force to press the movable contact 12 against the corresponding fixed contact 11 when the movable contact 12 conducts the corresponding fixed contact 11.

In other words, the first armature 16 is located on the side of the movable contact 12 facing away from the fixed contact 11, the second armature is located on the side of the movable contact 12 facing the fixed contact 11, and the first armature 16 and the second armature are adapted to magnetically attract each other when the movable contact 12 conducts the corresponding fixed contact 11, and push against the movable contact 12 by the magnetic attraction force to resist the repulsive force between the movable contact 12 and the fixed contact 11. This can further improve the operation stability of the relay 10, and improve the conduction effect between the movable contact 12 and the stationary contact 11.

In some embodiments, a side of the movable contact 12 away from the fixed contact 11 is provided with a first armature 16, and a second armature is provided in the receiving groove 131, and the first armature 16 and the second armature are adapted to magnetically attract each other when the movable contact 12 conducts the corresponding fixed contact 11.

Specifically, at least a part of the movable contact 12 is located between the first armature 16 and the second armature, and when the movable contact 12 conducts the corresponding fixed contact 11, the first armature 16 and the second armature are magnetized, and the sides of the first armature and the second armature facing each other are opposite in magnetism, and a magnetic attraction force is generated, so that a force pushing the movable contact 12 to move toward the fixed contact 11 is formed, thereby increasing the contact pressure between the fixed contact 11 and the movable contact 12, making the contact stability of the movable contact 12 and the fixed contact 11 higher, and improving the working stability of the relay 100.

It should be understood that "the side of the movable contact 12 away from the fixed contact 11 is provided with the first armature 16, and the accommodating groove 131 is provided with the second armature" only as an embodiment of the present invention, and in other embodiments, the second armature may not be provided in the accommodating groove 131.

For example, the driving member 14 includes a driving device and a driving rod 143, the driving device drives the movable contact 12 to move toward or away from the fixed contact 11 by driving the driving rod 143, the driving rod 143 sequentially passes through the first armature 16, the movable contact plate 12, and the second armature, so that the first armature 16 and the second armature are respectively located at both sides of the movable contact 12, when the movable contact 12 conducts the corresponding fixed contact 11, the first armature 16 and the second armature are magnetized, and one sides of the first armature 16 and the second armature facing each other are opposite in magnetism, and a suction force is generated, so as to form a force pushing the movable contact 12 to move toward the fixed contact 11, thereby increasing a contact pressure between the fixed contact 11 and the movable contact 12.

The present invention does not limit the specific arrangement positions of the first armature 16 and the second armature, and as long as the first armature 16 and the second armature are respectively located at both sides of the moving contact 12, the contact pressure between the fixed contact 11 and the moving contact 12 can be increased when the moving contact 12 conducts the corresponding fixed contact 11.

In the particular embodiment shown in fig. 5, the drive member 14 includes: the contact device comprises a fixed seat 141, an elastic piece 142 and a driving rod 143, wherein one end of the elastic piece 142 is fixed on the fixed seat 141, the other end of the elastic piece 142 pushes the movable contact 12, and the driving rod 143 is fixed on the fixed seat 141 to push the fixed seat 141 to move. Thus, the driving effect of the driving member 14 is improved, and the response speed can be improved by the elastic member 142 when the movable contact 12 is controlled to be disconnected from the stationary contact 11.

Further, the holder 141 is configured as an insulating member. Thus, the driving rod 143 is prevented from being electrified, and the working stability and the use safety of the relay 100 are improved.

In some embodiments, the relay body 10 further includes: the fixed support 15, the elastic component 142 is arranged in the fixed support 15, the lower end of the fixed support 15 is connected with the fixed seat 141, the upper end of the fixed support 15 is provided with a guide groove 151, and the first armature 16 is provided with a guide block 161 which is matched with the guide groove 151.

In this way, the movable contact 12 can be stably contacted with the stationary contact 11 by the urging action of the elastic member 142 and the magnetic attraction force between the first armature 16 and the second armature, improving the operation stability of the relay 10.

Next, the structure of the relay 100 according to the present invention will be specifically described.

The stationary contact 11 is fixed on the housing 13 by brazing, the housing 13 is provided with an accommodating groove 131, the accommodating groove 131 is used for fixing the magnetic member 22 and the cover body 21, the magnetic members 22 are arranged on two opposite sides of the cover body 21, a magnetic circuit formed by the two magnetic members 22 forms an arc extinguishing device 20, and each stationary contact 11 is correspondingly provided with one arc extinguishing device 20.

In the housing 13, a movable contact 12 is provided at a position where the stationary contact 11 contacts with a certain distance (electrical gap) relatively, and a stamping protrusion is provided on the lower surface of the movable contact 12 for fixing with the first armature 16, and the movable contact 12 and the first armature 16 can be riveted and fixed by the stamping protrusion.

The first armature 16 is turned outwards on both sides to wrap the moving contact 12, and the turned edges are pressed inwards to be pressed and fixed with the moving contact 12. The fixed support 15 is a stamped and formed part, the guide block 161 of the first armature 16 extends into the guide groove 151 of the fixed support 15, the driving rod 143 is formed by machining or cold heading, the fixed support 15 and the driving rod 143 are connected through the fixed seat 141, the fixed seat 141 is an insulating part, and the insulating part does not directly contact with the fixed support 15 and plays a role in high-voltage insulation and low-voltage insulation.

The fixed support 15 and the fixed seat 141 are provided with a fixed position of an elastic piece 142, after the elastic piece 142 is installed, the first armature 16 riveted with the moving contact 12 is clamped into the fixed support 15, two ends of the elastic piece 142 are respectively pushed against a positioning hole of the first armature 16 and a positioning structure of the fixed seat 141, so that on the fixed support 15 for fixing the first armature 16 and the moving contact 12, a guide block 161 extending out of the first armature 16 extends into a guide groove reserved in the fixed support 15, when the relay 100 works, the first armature 16 can move up and down along the guide groove 151, the static contact 11 and the moving contact 12 of the relay 100 are connected and disconnected, and the response speed is improved.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.