CN218299715U - Relay with a movable contact - Google Patents

Abstract

The utility model discloses a relay, include: the moving module comprises a connecting part and a plurality of moving contact groups arranged on the connecting part, and the moving contact groups are arranged in a separated manner along the x direction; the static module comprises a mounting frame and a plurality of static contact groups arranged on the mounting frame, the static contact groups are arranged in a separated mode along the x direction, and one static contact group corresponds to one moving contact group one by one; the magnetic circuit system is used for abutting against the middle part of the connecting mechanism and providing driving force for the connecting mechanism so as to drive the movable contact groups to move in the y direction, so that one movable contact group and one static contact group are closed in a one-to-one correspondence manner; and two ends of the first elastic resetting piece are respectively abutted against the moving module and the static module so as to apply elastic force to the moving module when the moving contact group and the static contact group are disconnected. The utility model provides a motion module's adapting unit is difficult for taking place to warp, does not need to set up the limit structure who restricts motion module motion alone, has simplified the structure of whole relay.

Description

Relay device

Technical Field

The utility model relates to a relay technical field especially relates to a relay.

Background

The relay is an automatic switching element which uses electromagnetic force to drive mechanical parts to move relatively to generate a preset response. The magnetic circuit part comprises a coil, a coil rack, an iron core, a yoke, an armature and the like, and the contact part comprises a movable spring part and a static spring part. When current passes through the coil, electromagnetic force is generated, and the armature is attracted, so that the movable contact of the movable spring part is driven to be in contact with or disconnected from the static contact of the static spring part; when the current in the coil disappears, the electromagnetic force disappears, and the armature resets, so that the movable contact of the movable spring part is disconnected or contacted with the fixed contact of the fixed spring part, and the circuit is switched on or off by the attraction or disconnection of the movable contact and the fixed contact.

An electromagnetic relay of prior art, install a plurality of movable contacts along the length direction who promotes the card, the motion that the armature of magnetic circuit part passes through drive promotion card is in order to drive movable contact and stationary contact closure, when promoting, armature connects in the one end of promotion card, because the length of promotion card is longer, take place to warp in order to prevent to promote the card, be provided with the motion of locating part in order to restrict the promotion card in the relay, thereby when drive movable contact motion, promote the meeting production friction between card and the locating part, the influence promotes the motion accuracy of card.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one problem existing in the prior art, according to an aspect of the present invention, there is provided a relay, comprising: the moving module comprises a connecting part and a plurality of movable contact groups arranged on the connecting part, and the movable contact groups are arranged along the x direction in a separated mode; the static module comprises a mounting rack and a plurality of static contact groups arranged on the mounting rack, the static contact groups are arranged along the x direction in a separated mode, and one static contact group corresponds to one movable contact group; the magnetic circuit system is used for abutting against the middle part of the connecting part and providing driving force for the connecting part so as to drive the movable contact groups to move towards the y direction, so that one movable contact group and one fixed contact group are closed in a one-to-one correspondence manner; and two ends of the first elastic resetting piece are respectively abutted to the moving module and the static module so as to apply elastic force to the moving module when the moving contact group and the static contact group are disconnected.

Therefore, in the process that the movable contact group of the moving module moves towards the fixed contact group, the rotation of the armature is converted into the motion of the driving moving module along the y direction and along the linear direction by the electromagnetic force generated in the magnetic circuit system, so that the movable contact group and the fixed contact group on the driving moving module are closed, meanwhile, the magnetic circuit system is abutted against the middle part of the connecting part, and driving force is provided for the middle part of the moving module, so that in the process that the driving moving module moves towards the fixed module, the driving force applied to the moving module can be uniformly dispersed to the two ends of the moving module, each movable contact group can be uniformly pressed, so that the closing of the movable contact group and the fixed contact group can have higher precision, meanwhile, the connecting part in the moving module is not easy to deform, a limit structure for limiting the movement of the moving module does not need to be independently arranged, and the structure of the whole relay is simplified.

In some embodiments, the connection component includes a sliding frame, a connection frame, a pushing card, and at least one elastic structure, the pushing card extends along the x direction, the plurality of moving contact sets are separately disposed on the pushing card, two ends of the elastic structure respectively abut against the pushing card and the sliding frame, and a middle portion of the sliding frame abuts against an armature in the magnetic circuit system, and the connection frame is connected to the pushing card and is used for allowing the sliding frame to slide under the pushing of the magnetic circuit system.

Therefore, under the driving force of the armature, the driving force drives the sliding frame to move along the y direction, the elastic structure is gradually compressed, the elastic structure transmits the driving force to the pushing card, and finally the pushing card drives the movable contact groups to be closed correspondingly with the static contact groups one by one.

In some embodiments, the elastic structure includes a first spring and a second spring surrounding the first spring, two ends of the second spring respectively abut against the push clamp and the sliding frame, one end of the first spring is connected to the push clamp, and the other end of the first spring is a free end.

In this way, by arranging the elastic structure into two elastic pieces, the second spring and the first spring are sequentially compressed under the driving of the driving part, so that the second spring and the first spring jointly generate elastic counter force to resist against electric repulsive force, and the closing effect between each movable contact group and each static contact group is ensured.

In some embodiments, a side of the sliding frame facing the push card is provided with a first guide structure for guiding the first spring when the sliding frame compresses the first spring.

Like this, through setting up first guide structure to be used for supplying first spring to lead when compressing, make first spring can be compressed along upper and lower direction, avoid taking place to rock and influence the closed effect of each movable contact group and each stationary contact group at the in-process of compression.

In some embodiments, the connecting member includes a plurality of the elastic structures, and the plurality of the elastic structures are separately disposed between the push card and the sliding frame.

Therefore, under the drive of the magnetic force of the magnetic circuit system, the acting force of the armature on the sliding frame is uniformly dispersed to the two ends of the sliding frame, so that the pushing clamp can be driven to drive each movable contact group and each static contact group to be stably closed.

In some embodiments, the connecting member includes two elastic structures, and the position where the magnetic path system and the sliding frame abut against each other is located in the middle of the two elastic structures.

Therefore, under the drive of the magnetic force of the magnetic circuit system, the acting force of the armature on the sliding frame is uniformly dispersed to the two ends of the sliding frame, so that the pushing clamp can be driven to drive each movable contact group and each static contact group to be stably closed.

In some embodiments, each of the movable contact sets includes a movable contact block and two movable contacts disposed at two ends of the movable contact block, the movable contact block is vertically connected to the pushing card along the z direction, each of the stationary contact sets includes two stationary contacts disposed separately, and one of the movable contacts is configured to be closed with one of the stationary contacts in a one-to-one correspondence.

In this way, the contact gap can be shortened by setting two movable contacts in each movable contact group, namely, the contact gap in the embodiment is the sum of the gaps between the two movable contacts and the fixed contact on the movable contact block, when the movable contact and the fixed contact are driven to be closed, the electromagnetic attraction force required to be provided by the magnetic circuit system is smaller, namely, the distance between the movable contact and the fixed contact is shortened by setting the two movable contacts and the fixed contact, the electromagnetic attraction value is reduced, the structure of the whole relay is simplified, and the structure is more compact.

In some embodiments, two of the moving contacts at both ends of the moving contact block are located at opposite sides of the push card in the z direction.

Thus, under the drive of the driving force of the magnetic circuit system, the stable transmission of the driving force to each movable contact is ensured.

In some embodiments, the relay further comprises a second guide structure connected to the stationary module and slidable relative to the moving module for guiding the moving module when moving in the y-direction.

Like this, through setting up second guide structure, the relative quiet module of motion is close to the in-process of motion or keeping away from, has restricted motion module and has carried out linear motion along the Y direction, stability when having guaranteed the motion.

In some embodiments, the first elastic restoring member is a spring, two end portions of the first elastic restoring member respectively abut against the connecting member and the mounting bracket, and two free ends of the first elastic restoring member are bent toward a center direction of the first elastic restoring member.

Like this, through the mode that all buckles toward the center direction of spring with two free ends that an elasticity resets, make the tail end of spring arrange the position that inside contact can not reach the plastic part in, prevented the burr scraping plastic shape's of spring tail end push away the card and the mounting bracket of plastic shape and produced the piece.

In some embodiments, the normally closed auxiliary contact structure is provided on the mounting rack and is used for cooperating with the connecting part, so that when the connecting part drives the movable contact group and the fixed contact group to close, the connecting part drives the auxiliary movable contact and the auxiliary fixed contact in the normally closed auxiliary contact structure to open.

Therefore, by arranging the auxiliary contact structure, the on-off state between the fixed contact group and the movable contact group is transmitted through the on-off state between the auxiliary movable contact and the auxiliary fixed contact in the normally closed auxiliary contact structure, so that the on-off condition of the fixed contact group and the movable contact group in use is monitored.

In some embodiments, the normally closed auxiliary contact structure includes an elastic frame, an auxiliary movable contact, a supporting frame, and an auxiliary stationary contact, the elastic frame and the supporting frame are connected to the mounting frame, the auxiliary movable contact is disposed on a side of the elastic frame facing the mounting frame, the auxiliary stationary contact is disposed on a side of the supporting frame facing away from the mounting frame, and the auxiliary movable contact and the auxiliary stationary contact can be changed from a closed state to an open state under the pushing of the connecting component on the elastic frame.

Therefore, through the matching of the elastic frame and the connecting part, when the movable contact group is driven to move towards the fixed contact group through the connecting part, the connecting part drives the elastic frame to generate elastic deformation so as to drive the auxiliary movable contact and the auxiliary fixed contact to be converted from a closed state to an open state, and therefore the conduction condition of the fixed contact group and the movable contact group can be judged at the moment.

In some embodiments, the apparatus further comprises an insulating member connected to the mounting frame for separating each adjacent two of the stationary contact sets.

Thus, when a movable contact group and a static contact are closed, a movable contact and a static contact which are closed are separated by the insulating part, the movable contact and the static contact which are closed are not influenced by the closed electric arc of an adjacent movable contact and a static contact, an insulating retaining wall is formed, the electric capacity is greatly enhanced, and the closing stability of the movable contact group and the static contact group is ensured.

In some embodiments, the insulating member includes a connecting body and a plurality of separated insulating structures disposed on the connecting body, the plurality of insulating structures are arranged along the x direction, the connecting body is connected to the mounting frame, and one insulating structure is disposed between every two adjacent stationary contact sets.

Like this, connect through connector and mounting bracket to on having installed the mounting bracket with the insulating part, carry out two liang of divisions between with contact group through insulation construction, make between the contact group when the closure, avoid receiving the influence of electric arc each other.

Drawings

Fig. 1 is a schematic structural diagram of a relay according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of the relay of FIG. 1;

FIG. 3 is a schematic view of the housing of FIG. 1;

FIG. 4 is a schematic structural diagram of the relay in FIG. 1 after the housing is hidden;

FIG. 5 is a schematic cross-sectional view of the relay of FIG. 4 after hiding the housing;

fig. 6 is a schematic structural view of the relay in fig. 1 after hiding the housing and the insulating member;

FIG. 7 is a schematic structural view of the moving module and the stationary module of FIG. 4;

FIG. 8 is a schematic cross-sectional view of the moving and stationary modules of FIG. 7;

fig. 9 is a schematic structural diagram of the magnetic circuit system in fig. 2;

FIG. 10 is a schematic diagram of the motion module of FIG. 2;

FIG. 11 is a schematic structural diagram of the stationary module of FIG. 2;

fig. 12 is a schematic diagram of the structure of the normally closed auxiliary contact of fig. 2;

FIG. 13 is a schematic view of the insulator of FIG. 2;

fig. 14 is a schematic structural view of the first restoring elastic member in fig. 2.

Wherein the reference numerals have the following meanings:

100-relay, 10-magnetic circuit system, 11-iron core, 12-coil, 13-framework, 14-yoke, 15-armature, 151-motion part, 152-drive part, 16-second reset elastic piece, 17-coil terminal, 20-motion module, 21-connecting piece, 211-sliding frame, 2111-first guide structure, 212-connecting frame, 213-pushing card, 2131-main body part, 2132-bulge, 214-elastic structure, 2141-first spring, 2142-second spring, 22-movable contact group, 221-movable contact block, 222-movable contact, 30-static module, 31-mounting frame, 32-static contact group, 321-fixed contact, 33-fixed terminal group, 331-first fixed terminal, 332-second fixed terminal, 40-first reset elastic piece, 41-free tail end, 50-shell, 51-opening, 60-second guide structure, 70-normally closed auxiliary contact structure, 71-elastic frame, 711-first connecting part, 712-second connecting part, 713-elastic deformation part, 72-auxiliary movable contact, 73-supporting frame, 731-third connecting part, 732-fourth connecting part, 74-auxiliary fixed contact, 80-insulating piece, 81-connecting part, 82-insulating structure and 821-baffle plate.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 14, a relay 100 according to an embodiment of the present invention includes a magnetic circuit system 10, a moving module 20, a stationary module 30, a first elastic restoring element 40, and a housing 50.

Referring to fig. 1, 2 and 4, the moving module 20 includes a connecting member 21 and a plurality of moving contact sets 22 disposed on the connecting member 21, wherein the moving contact sets 22 are spaced apart along the x direction; the static module 30 comprises a mounting frame 31 and a plurality of static contact groups 32 arranged on the mounting frame 31, the static contact groups 32 are arranged along the x direction in a separated mode, and one static contact group 32 corresponds to one movable contact group 22; the magnetic circuit system 10 is used for abutting against the middle part of the connecting part 21 and providing driving force for the connecting part 21 to drive the plurality of movable contact groups 22 to move towards the y direction so as to close one movable contact group 22 and one fixed contact group 32 in a one-to-one correspondence manner; both ends of the first elastic restoring member 40 abut against the moving module 20 and the stationary module 30, respectively, to apply an elastic force to the moving module 20 when the moving contact 222 and the stationary contact 321 are disconnected.

In the relay 100, in the process that the movable contact group 22 of the moving module 20 moves toward the fixed contact group 32, the electromagnetic force generated in the magnetic circuit system 10 converts the rotation of the armature 15 into the movement of the driving moving module 20 in the y direction and in the linear direction, so as to drive the movable contact group 22 and the fixed contact group 32 on the moving module 20 to be closed, and meanwhile, the magnetic circuit system 10 abuts against the middle of the connecting part 21 to provide the driving force to the middle of the moving module 20, so that the driving force applied to the moving module 20 can be uniformly dispersed to two ends of the moving module 20 in the process that the driving moving module 20 moves toward the stationary module 30, so that each movable contact group 22 can be subjected to uniform pressure, and thus the closing of the movable contact group 22 and the fixed contact group 32 can have higher accuracy, and meanwhile, the connecting part 21 in the moving module 20 is not prone to deform, and a limit structure for limiting the movement of the moving module 20 does not need to be separately arranged, thereby simplifying the structure of the whole relay 100.

For convenience of description, the x direction in the present embodiment represents the left-right direction, the y direction represents the up-down direction, and the z direction represents the up-down direction, that is, the direction in which the movable contact groups 22 are arranged is represented as the left-right direction, and the moving direction in which the movable contact groups 22 are driven is the up-down direction.

Referring to fig. 1 to 3, in an embodiment of the present invention, the relay 100 further includes a housing 50 to accommodate various components in an accommodating cavity of the housing 50 to protect the internal components.

Specifically, the housing 50 is square and has an opening 51, the magnetic circuit system 10, the moving module 20 and the stationary module 30 are sequentially arranged from the sealed end of the housing 50 to the opening 51, and the stationary module 30 can be exposed from the opening 51, so that the communication operation of the external circuit is facilitated, and the on/off of the external system circuit is controlled.

Referring to fig. 5 and 9, in an embodiment of the present invention, the magnetic circuit system 10 includes an iron core 11, a coil 12, a frame 13, a yoke 14, an armature 15, a second elastic restoring element 16, and two coil terminals 17.

The framework 13 is used for mounting the iron core 11, the coil 12, the yoke 14, the armature 15 and the second elastic reset piece 16, the iron core 11 is cylindrical, the framework 13 penetrates through the iron core 11 along the x direction, the coil 12 is wound outside the iron core 11 and the framework 13, and the two coil terminals 17 are respectively electrically connected with the coil 12 and used for supplying power to the coil 12. The yoke 14 constitutes a part of a magnetic circuit through which magnetic flux generated by the coil 12 passes, and the armature 15 is supported by the yoke and is rotatable about a portion supported by the yoke 14.

The armature 15 in this embodiment is substantially L-shaped, and includes a moving portion 151 and a driving portion 152, where the moving portion 151 is supported by a magnetic yoke to drive the driving portion 152 to rotate, where the moving portion 151 is configured to move toward the iron core 11 under an electromagnetic force generated when the coil 12 is powered, so as to attract the iron core 11, and the driving portion 152 abuts against the moving module 20, so as to drive and rotate the moving portion 151, so as to convert the rotation of the driving portion 152 into a linear motion of the moving module 20 toward the y direction, so as to close the moving module 20 and the stationary module 30. The second elastic restoring member 16 is supported by the driving portion 152, so that when the driving portion 152 rotates after the coil 12 is energized, the second elastic restoring member 16 is driven to elastically deform; when the electric power disappears, the driving portion 152 can be pushed to be rapidly restored by the elastic force of the second elastic restoring member 16.

Specifically, when the coil 12 is energized via the two coil terminals 17, the armature 15 rotates relative to the yoke 14 by a magnetic attraction force generated between the coil 12 and the core 11, and the armature 15 is attracted in contact with the core 11. At this time, the second elastic restoring member 16 is elastically deformed as the armature 15 rotates. The rotational force of the armature 15 acts on the motion block 20 to cause linear motion of the motion block 20 in the y-direction. Thereby, the movable contact group 22 and the stationary contact group 32 are switched from the open state to the closed state.

Specifically, the closed state in the present embodiment refers to a state in which the movable contacts 222 in one movable contact group 22 and the fixed contacts 321 in one fixed contact group 32 are closed in one-to-one correspondence to supply power to a load; the open state refers to a state in which the movable contact 222 in one movable contact group 22 and the fixed contact 321 in one fixed contact group 32 are disconnected from each other without supplying power to the load.

Thus, when the coil 12 is changed from a state in which it is energized to a state in which it is not energized, the magnetic attraction force between the armature 15 and the core 11 disappears, and the armature 15 rotates away from the core 11 by the elastic force of the second elastic restoring member 16 to restore the original state.

Referring to fig. 6 to 8, in an embodiment of the present invention, the connection component 21 includes a sliding frame 211, a connection frame 212, a pushing card 213 and at least one elastic structure 214, the pushing card 213 extends along the x direction, the plurality of moving contact sets 22 are separately disposed on the pushing card 213, two ends of the elastic structure 214 abut against the pushing card 213 and the sliding frame 211, and the middle portion of the sliding frame 211 abuts against the armature 15 in the magnetic circuit system 10, the connection frame 212 is connected to the pushing card 213 for sliding the sliding frame 211 under the pushing of the magnetic circuit system 10, so that under the driving force of the armature 15, the driving force drives the sliding frame 211 to move along the y direction and gradually compress the elastic structure 214, the elastic structure 214 transmits the driving force to the pushing card 213, and finally the pushing card 213 drives the moving contact sets 22 to close with the stationary contact sets 32 one to one.

Specifically, in the present embodiment, the closing of each movable contact group 22 and each stationary contact group 32 in one-to-one correspondence includes the following processes:

an initial state: each movable contact group 22 and each fixed contact group 32 are in an off state, the moving part 151 of the armature 15 and the iron core 11 are in an off state, and the driving part 152 of the armature 15 is abutted against the upper surface of the sliding frame 211;

the first change state: as the coil 12 is energized to the two coil terminals 17, the armature 15 rotates relative to the yoke 14 by a magnetic attraction force generated between the coil 12 and the core 11, and the moving portion 151 of the armature 15 moves in the direction of the core 11, that is, to the right; meanwhile, the movement drives the driving part 152 to rotate, the driving part 152 rotates downwards and generates primary compression on the elastic structure 214 until each movable contact group 22 and each fixed contact group 32 are just contacted and closed, and the moving part 151 and the iron core 11 are still in an open state and are not attracted;

the second change state: as the magnetic attraction force continues to attract the moving portion 151 to move toward the iron core 11, so that the moving portion 151 completes the overtravel path, the moving portion 151 continues to move toward the iron core 11, and the driving portion 152 is driven to continue to rotate, so that the driving portion 152 continues to drive the sliding rack 211 to further compress the elastic structure 214 until the moving portion 151 and the armature 15 complete the closing.

Thus, due to the provision of the elastic structure 214, when the driving portion 152 gradually applies a pressure to the sliding frame 211, the elastic structure 214 is further compressed, and a larger elastic reaction force can be generated to press the closing between each movable contact group 22 and each stationary contact group 32, so as to oppose the electric repulsive force by the elastic reaction force, so as to avoid the occurrence of the situation where the movable contact 222 is sprung open by the electric repulsive force generated after the movable contact 222 and the stationary contact 321 are closed.

Referring to fig. 8, in an embodiment of the present invention, in order to ensure that sufficient elastic counterforce is generated to counter the electric repulsive force, the elastic structure 214 includes a first spring 2141 and a second spring 2142 surrounding the first spring 2141, two ends of the second spring 2142 abut against the push clamp 213 and the sliding frame 211 respectively, one end of the first spring 2141 is connected to the push clamp 213, and the other end is a free end, under the driving of the magnetic circuit system 10, the sliding frame 211 sequentially compresses the second spring 2142 and the first spring 2141, so that the second spring 2142 and the first spring 2141 are sequentially compressed by the way of setting the elastic structure 214 as two elastic members, under the driving of the driving portion 152, so that the second spring 2142 and the first spring 2141 jointly generate elastic counterforce to counter the electric repulsive force, thereby ensuring the closing effect between each moving contact group 22 and each stationary contact group 32.

Specifically, the axial directions of the second spring 2142 and the first spring 2141 in this embodiment are both in the up-down direction, so that when the carriage 211 moves downward, the smoothness of the up-down movement is ensured.

In this embodiment, the process of sequentially compressing the second spring 2142 and the first spring 2141 is specifically a thinning process:

initial state: each movable contact group 22 and each fixed contact group 32 are in an open state, the moving part 151 of the armature 15 and the iron core 11 are in an open state, and the driving part 152 of the armature 15 is abutted against the upper surface of the sliding frame 211;

the first change state: as the coil 12 is energized to the two coil terminals 17, the armature 15 rotates relative to the yoke 14 by a magnetic attraction force generated between the coil 12 and the core 11, and the moving portion 151 of the armature 15 moves in the direction of the core 11, that is, to the right; simultaneously, the moving part drives the driving part 152 to rotate, the driving part 152 rotates downwards and compresses the second spring 2141 until each movable contact group 22 and each fixed contact group 32 are just contacted and closed, and the moving part 151 and the iron core 11 are still in an open state and are not closed at this time;

the second change state: as the magnetic attraction force continues to attract the moving portion 151 to move toward the iron core 11, so that the moving portion 151 completes the over-travel distance, since the moving portion 151 continues to move toward the iron core 11, the driving portion 152 is driven to rotate continuously, so that the driving portion 152 continues to drive the sliding rack 211 to further compress the second spring 2142, and simultaneously compress the first spring 2141, until the moving portion 151 and the armature 15 complete the closing, so that the second spring 2142 and the first spring 2141 together provide a pressure to press the closing between each moving contact group 22 and each stationary contact group 32.

As can be understood from fig. 5 and 8, since one end of the first spring 2141 is connected to the pushing card 213, and the other end is a free end, in order to ensure the stability of the movement of the sliding frame 211 when the first spring 2141 is compressed, the sliding frame 211 is provided with a first guide structure 2111 on a side facing the pushing card 213 for guiding the first spring 2141 when the sliding frame 211 compresses the first spring 2141, so that by providing the first guide structure 2111 for guiding the first spring 2141 when the first spring 2141 is compressed, the first spring 2141 can be compressed along the up-down direction, and the effect of closing the movable contact sets 22 and the stationary contact sets 32 due to the shake generated during the compression process is avoided.

Specifically, the first guide structure 2111 in this embodiment is a guide post, disposed on a side of the sliding frame 211 facing the push card 213, in an initial state, the second spring 2142 surrounds the first guide structure 2111, the first guide structure 2111 and the guide post have a predetermined interval, the sliding frame 211 gradually moves downward to compress the second spring 2142 under the continuous driving of the driving force of the magnetic circuit system 10, the first guide structure 2111 extends into the central passage of the first spring 2141, and the sliding frame 211 compresses the first spring 2141.

In addition, in order to ensure that the pushing card 213 can drive each movable contact group 22 and each stationary contact group 32 to be smoothly closed under the driving force of the magnetic circuit system 10, the connecting component 21 includes a plurality of elastic structures 214, and the plurality of elastic structures 214 are separately disposed between the pushing card 213 and the sliding frame 211, so that the acting force of the armature 15 on the sliding frame 211 is uniformly distributed to the two ends of the sliding frame 211 under the magnetic force driving of the magnetic circuit system 10, and thus the pushing card 213 can be driven to drive each movable contact group 22 and each stationary contact group 32 to be smoothly closed.

Specifically, in order to ensure the transmission of force and the structural simplicity of the moving module 20, the connecting component 21 includes two elastic structures 214, and the position where the magnetic circuit system 10 and the connecting component 21 abut against each other is located in the middle of the two elastic structures 214, so that the acting force of the armature 15 acting on the sliding frame 211 is uniformly distributed to the two ends of the sliding frame 211 under the magnetic force driving of the magnetic circuit system 10, and the pushing clamp 213 can be driven to drive the moving contact sets 22 and the stationary contact sets 32 to be closed smoothly. In other embodiments, other numbers of elastic structures 214 may be provided as required, for example, when there are three elastic structures 214, three elastic structures 214 are uniformly provided, and there is just one elastic structure 214 located below the position where the magnetic circuit system 10 and the connecting part 21 abut against each other; when the four elastic structures 214 are arranged, the four elastic structures 214 are uniformly arranged, the position where the magnetic circuit system 10 and the connecting part 21 abut against each other is located at the middle position of the four elastic structures 214 along the x direction, and the positions where the elastic structures 214 and the magnetic circuit system 10 abut against the connecting mechanism are arranged by analogy in order to ensure that the acting force of the armature 15 acting on the sliding frame 211 is uniformly dispersed to the two ends of the sliding frame 211, so that the pushing clamp 213 can be driven to drive each movable contact group 22 and each stationary contact group 32 to be stably closed.

Specifically, referring to fig. 10 and 11, each of the movable contact groups 22 in the present embodiment includes a movable contact block 221 and two movable contacts 222 disposed at two ends of the movable contact block 221, the movable contact block 221 is vertically connected to the push card 213 along the z direction, each of the fixed contact groups 32 includes two fixed contacts 321 disposed separately, and one movable contact 222 can be closed with one fixed contact 321 in a one-to-one correspondence manner, so that the contact gap can be shortened by disposing two movable contacts 222 in each movable contact group 22, that is, the contact gap in the present embodiment is the sum of the gaps between the two movable contacts 222 and the fixed contacts 321 on the movable contact block 221, when the movable contact 222 and the fixed contacts 321 are driven to be closed, the electromagnetic attraction force required to be provided by the magnetic circuit system 10 is smaller, that is, by disposing two movable contacts 222 and the fixed contacts 321, the distance between the movable contacts 222 and the fixed contacts 321 is shortened, the electromagnetic attraction force value is reduced, the structure of the entire relay 100 is simplified, and the structure is made more compact. In other embodiments, each of the movable contact sets 22 and the fixed contact set 32 may include only one movable contact 222 and one fixed contact 321, respectively, as desired.

In order to ensure the smooth transmission of the magnetic force, the two moving contacts 222 at the two ends of the moving contact block 221 are located at two opposite sides of the push card 213 along the Z direction, that is, the length direction of the push card 213 in this embodiment is the x direction, the width direction of the push card 213 is the Z direction, and the two moving contacts 222 at the two ends of the moving contact block 221 are located at two sides of the width direction of the push card 213, so that the stable transmission of the pushing force to the moving contacts 222 is ensured under the driving force of the magnetic circuit system 10.

Specifically, the present embodiment includes 4 movable contact groups 22 and 4 fixed contact groups 32, that is, four fixed terminal groups 33, a pair of fixed terminal groups 33 is disposed at one fixed contact group 32, the pair of fixed terminal groups 33 includes a first fixed terminal 331 and a second fixed terminal 332, respectively, the fixed terminal groups 33 are used for being electrically connected to a load, and the power supply state and the non-power supply state of the load are switched by switching the state of electrical connection and the state of electrical disconnection between the pair of fixed terminal groups 33, and since the present embodiment includes four fixed terminal groups 33, the present relay 100 can be connected to the loads of 4 systems at maximum, and can switch the power supply state and the non-power supply state of the loads of 4 systems.

In addition, because the moving module 20 needs to move towards the Y direction, in order to ensure that the moving module 20 performs stable linear motion along the Y direction, the relay 100 further includes a second guiding structure 60, the second guiding structure 60 is connected to the stationary module 30, and is slidably connected with the moving module 20, so as to guide the moving module 20 when moving in the Y direction, that is, the second guiding structure 60 extends along the Y direction, so that by providing the second guiding structure 60, in the process that the moving module 20 moves close to or away from the stationary module 30 relative to the stationary module 30, the moving module 20 is limited to perform linear motion along the Y direction, and the stability during moving is ensured.

Specifically, the second guide structure 60 in this embodiment is a guide pillar, the moving point block 221 is made of a metal material, and in order to avoid the generation of debris due to collision friction between the moving module 20 and the second guide structure 60 during the movement of the moving module relative to the second guide structure 60, the second guide structure 60 in this embodiment is also made of a metal material, and the second guide structure 60 is slidably connected to the moving point block 221, so that the generation of debris due to collision friction between the second guide structure 60 and the moving point block 221 during the relative movement of the second guide structure 60 and the moving point block 221 is ensured.

Referring to fig. 12, in an embodiment of the present invention, in order to facilitate monitoring of the communication state between the moving module 20 and the stationary module 30, the relay 100 further includes a normally closed auxiliary contact structure 70, the normally closed auxiliary contact structure 70 is disposed on the mounting frame 31 and is used to cooperate with the connecting member 21, so that when the connecting member 21 drives the moving contact group 22 and the stationary contact group 32 to close, the connecting member 21 drives the auxiliary moving contact 72 and the auxiliary stationary contact 74 in the normally closed auxiliary contact structure 70 to open, so that by providing the auxiliary contact structure 70, the open/close state between the stationary contact group 32 and the moving contact group 22 is transferred through the open/close state between the auxiliary moving contact 72 and the auxiliary stationary contact 74 in the normally closed auxiliary contact structure 70, so as to facilitate monitoring of the conduction state between the stationary contact group 32 and the moving contact group 22 in use.

Specifically, the normally closed auxiliary contact structure 70 includes an elastic frame 71, an auxiliary movable contact 72, a support frame 73 and an auxiliary stationary contact 74, the elastic frame 71 and the support frame 73 are connected to the mounting frame 31, the auxiliary movable contact 72 is disposed on a side of the elastic frame 71 facing the mounting frame 31, the auxiliary stationary contact 74 is disposed on a side of the support frame 73 opposite to the mounting frame 31, under the pushing of the connecting member 21 to the elastic frame 71, the auxiliary movable contact 72 and the auxiliary stationary contact 74 can be changed from a closed state to an open state, so that through the cooperation between the elastic frame 71 and the connecting member 21, when the connecting member 21 drives the movable contact group 22 to move towards the stationary contact group 32, the connecting member 21 drives the elastic frame 71 to be elastically deformed to drive the auxiliary movable contact 72 and the auxiliary stationary contact 7 to be changed from the closed state to the open state, thereby determining the conduction condition between the stationary contact group 32 and the movable contact group 22.

Specifically, the elastic frame 71 in this embodiment includes a first connection portion 711, a second connection portion 712, and an elastic deformation portion 713 that are connected in sequence, the first connection portion 711 is connected to the mounting frame 31 and extends in the y direction, one end of the first connection portion 711 penetrates through the mounting frame 31 and can be exposed relative to the housing 50 to communicate with an external load through one end of the first connection portion 711, the other end of the first connection portion 711 is connected to one end of the second connection portion 712, an included angle between the two ends is 90 degrees, the second connection portion 712 extends in the x direction, one end of the elastic deformation portion 713 is connected to the other end of the second connection portion 712, and extends in the z direction, an included angle between the second connection portion 712 is 90 degrees, the auxiliary movable contact 72 is disposed on one side of the elastic deformation portion 713 facing the mounting frame 31, and when the moving module 20 is in an initial state (i.e., the movable contact set 22 and the stationary contact set 32 are in a disconnected state), the second connection portion 712, that is, that the elastic deformation portion 713 is in a substantially parallel to a natural state, and the auxiliary movable contact 72 and the auxiliary stationary contact 74 are in a closed state; when the connecting member 21 brings the contact group 22 and the fixed contact group 32 into close contact, the connecting member 21 applies downward pressure to the elastic deformation portion 713 to drive the elastic deformation portion 713 to deform elastically downward, so as to drive the auxiliary movable contact 72 and the auxiliary fixed contact 74 to be disconnected, and at this time, the movable contact group 22 and the fixed contact group 32 are also changed into a close state.

The supporting frame 73 in this embodiment includes a third connecting portion 731 and a fourth connecting portion 732, the third connecting portion 731 is connected to the mounting frame 31 and extends in the y direction, one end of the third connecting portion 731 penetrates through the mounting frame 31 and can be exposed relative to the housing 50 to communicate with an external load through one end of the third connecting portion 731, the other end of the third connecting portion 731 is connected to one end of the fourth connecting portion 732, an included angle between the two is 90 degrees, the fourth connecting portion 732 extends in the x direction, the auxiliary stationary contact 74 is disposed on a side of the fourth connecting portion 732 opposite to the mounting frame 31, and the auxiliary movable contact 72 and the auxiliary stationary contact 74 which are disposed in opposite directions can be in a closed or open state.

Specifically, referring to fig. 10, the elastic deformation portion 713 is driven to deform by the movement of the pushing card 213 in the embodiment. Specifically, the push card 213 includes a body portion 2131 and protrusions 2132 provided at an end of the body portion 2131, and the protrusions 2132 are provided at an end of the body portion 2131 extending in the x direction, so that when the push card 213 moves downward, the protrusions 2132 drive the elastic deformation portion 713 to elastically deform, thereby driving the disconnection between the auxiliary movable contact 72 and the auxiliary stationary contact 74.

Referring to fig. 13, in an embodiment of the present invention, in order to ensure the stability of the movable contact group 22 and the fixed contact 321 when closed and avoid the influence of the arc between the adjacent contact groups, the relay 100 further includes an insulating member 80, the insulating member 80 is connected to the mounting frame 31 for separating each adjacent two fixed contact groups 32, and for separating each adjacent two contact groups into independent closed states when the fixed contact group 32 and the movable contact group 22 are closed, that is, when one movable contact group 22 and one fixed contact 321 are closed, through the separation of the insulating member 80, one movable contact 222 and one fixed contact 321 that are closed can be isolated from the influence of the closed arc of the adjacent one movable contact 222 and one fixed contact 321, so as to form an insulating wall, greatly enhance the electrical capability, and ensure the closing stability of the movable contact group 22 and the fixed contact group 32.

Specifically, insulating part 80 includes connector 81 and locates a plurality of spaced apart insulation system 82 on connector 81, connector 81 connects in mounting bracket 31, a plurality of insulation system 82 arrange along the x direction, be equipped with an insulation system 82 between every two adjacent stationary contact group 32, thereby connect through connector 81 and mounting bracket 31, in order to having installed insulating part 80 on mounting bracket 31, carry out two liang of separations through insulation system 82 between with contact group, make between the contact group when closed, avoid receiving the influence of electric arc each other.

The insulating structure 82 in this embodiment includes two spaced apart blocking plates 821, the two blocking plates 821 are juxtaposed along the z direction, and one blocking plate 821 is disposed between every two stationary contacts 321, so that the blocking wall effect is achieved through the blocking plates 821.

Please refer to fig. 14, in an embodiment of the present invention, the first elastic restoring member 40 is a spring, since the pushing clip 213 and the mounting bracket 31 are made of plastic material, in order to avoid the first elastic restoring member 40 from generating burrs when the pushing clip 213 and the mounting bracket 31 are opposite to each other, both ends of the first elastic restoring member 40 are respectively supported by the pushing clip 213 and the mounting bracket 31, both free ends 41 of the first elastic restoring member 40 are bent toward the center of the spring, so that the two free ends 41 of the elastic restoring member are bent toward the center of the spring, the tail end of the spring is disposed at a position where the inner contact is not to the plastic, and the burrs at the tail end of the spring are prevented from scraping the pushing clip 213 in the plastic shape and the mounting bracket 31 in the plastic shape to generate fragments.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by combining the above technical features at will. It should be noted that modifications and embellishments may be made by those skilled in the art without departing from the principles of the present invention and are considered within the scope of the invention.

Claims (14)

1. A relay, characterized by comprising:

the moving module comprises a connecting part and a plurality of movable contact groups arranged on the connecting part, and the movable contact groups are arranged in a separated manner along the x direction;

the static module comprises a mounting rack and a plurality of static contact groups arranged on the mounting rack, the static contact groups are arranged along the x direction in a separated mode, and one static contact group corresponds to one movable contact group;

the magnetic circuit system is used for abutting against the middle part of the connecting part and providing driving force for the connecting part so as to drive the movable contact groups to move towards the y direction, so that one movable contact group and one fixed contact group are closed in a one-to-one correspondence manner;

and two ends of the first elastic resetting piece are respectively abutted to the moving module and the static module so as to apply elastic force to the moving module when the moving contact group and the static contact group are disconnected.

2. The relay according to claim 1, wherein the connection member includes a sliding frame, a connection frame, a pushing clip and at least one elastic structure, the pushing clip extends along the x direction, the plurality of moving contact sets are separately disposed on the pushing clip, two ends of the elastic structure respectively abut against the pushing clip and the sliding frame, and a middle portion of the sliding frame abuts against an armature of the magnetic circuit system, the connection frame is connected to the pushing clip for sliding the sliding frame under the pushing of the magnetic circuit system.

3. The relay according to claim 2, wherein the elastic structure comprises a first spring and a second spring surrounding the first spring, two ends of the second spring abut against the push card and the sliding frame respectively, one end of the first spring is connected to the push card, and the other end is a free end, and the sliding frame sequentially compresses the second spring and the first spring under the driving of the magnetic circuit system.

4. The relay according to claim 3, wherein a side of said carriage facing said push card is provided with a first guide structure for guiding said first spring when said carriage compresses said first spring.

5. The relay according to claim 3, wherein said connection member comprises a plurality of said elastic structures, and a plurality of said elastic structures are spaced between said push card and said sliding frame.

6. The relay according to claim 5, wherein the connecting member comprises two of the elastic structures, and a position where the magnetic path system abuts against the sliding frame is located in a middle portion of the two elastic structures.

7. The relay according to claim 2, wherein each of said movable contact sets comprises a movable contact block and two movable contacts disposed at two ends of said movable contact block, said movable contact block vertically connects said push card along z direction, each of said stationary contact sets comprises two stationary contacts disposed separately, one of said movable contacts is adapted to be closed with one of said stationary contacts in a one-to-one correspondence.

8. The relay according to claim 7, wherein two of said movable contacts at both ends of said movable contact block are located at opposite sides of said push card in a z-direction.

9. The relay according to claim 1, further comprising a second guiding structure connected to the stationary module and slidable relative to the moving module for guiding the moving module when moving in the y-direction.

10. The relay according to claim 1, wherein the first elastic reset member is a spring, two end portions of the first elastic reset member respectively abut against the connecting member and the mounting bracket, and two free ends of the first elastic reset member are bent toward a center direction of the first elastic reset member.

11. The relay according to claim 1, further comprising a normally closed auxiliary contact structure disposed on the mounting bracket and adapted to cooperate with the connecting member to drive the auxiliary movable contact and the auxiliary stationary contact of the normally closed auxiliary contact structure to open when the connecting member drives the movable contact set and the stationary contact set to close.

12. The relay according to claim 11, wherein the normally closed auxiliary contact structure comprises an elastic frame, an auxiliary movable contact, a supporting frame and an auxiliary stationary contact, the elastic frame and the supporting frame are connected to the mounting frame, the auxiliary movable contact is disposed on a side of the elastic frame facing the mounting frame, the auxiliary stationary contact is disposed on a side of the supporting frame facing away from the mounting frame, and the auxiliary movable contact and the auxiliary stationary contact can be changed from a closed state to an open state by the urging of the connecting member against the elastic frame.

13. The relay according to claim 1, further comprising an insulating member connected to said mounting frame for separating each adjacent two of said stationary contact sets.

14. The relay according to claim 13, wherein said insulating member comprises a connecting body and a plurality of spaced-apart insulating structures disposed on said connecting body, said plurality of spaced-apart insulating structures being arranged along the x-direction, said connecting body being connected to said mounting frame, one insulating structure being disposed between each adjacent two of said stationary contact sets.

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