CN117373870A

CN117373870A - Relay device

Info

Publication number: CN117373870A
Application number: CN202210754773.3A
Authority: CN
Inventors: 唐俊平; 于荣爱; 朱陆宁; 罗捷; 李文静
Original assignee: Dongguan Sanyou Auto Electric Co ltd
Current assignee: Dongguan Sanyou Auto Electric Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2024-01-09
Also published as: WO2024000770A1

Abstract

The invention discloses a relay, comprising: the motion module comprises a connecting component and a plurality of movable contact groups arranged on the connecting component, and the plurality of movable contact groups are arranged in a separated mode along the x direction; the static module comprises a mounting frame and a plurality of static contact sets arranged on the mounting frame, wherein the plurality of static contact sets are arranged in a separated mode along the x direction, and one static contact set corresponds to one movable contact set one by one; the magnetic circuit system is used for propping against the middle part of the connecting mechanism and providing driving force for the connecting mechanism so as to drive the plurality of movable contact groups to move in the y direction, so that one movable contact group and one stationary contact group are correspondingly closed one by one; and the two ends of the first elastic reset 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. The connecting part of the motion module is not easy to deform, and a limiting structure for limiting the motion of the motion module is not required to be arranged independently, so that the structure of the whole relay is simplified.

Description

Relay device

Technical Field

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

Background

The relay is an automatic switching element that generates a predetermined response by relatively moving mechanical parts using electromagnetic force. The magnetic circuit part comprises a coil, a coil frame, an iron core, a yoke iron, an armature iron 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 contacted with or disconnected from the stationary contact of the stationary spring part; when the current in the coil disappears, the electromagnetic force disappears, and the armature is reset, so that the movable contact of the movable spring part is disconnected or contacted with the stationary contact of the stationary spring part, and the purpose of switching on or switching off a circuit is achieved through the attraction or disconnection of the movable contact and the stationary contact.

An electromagnetic relay of the prior art installs a plurality of movable contacts along the length direction of promotion card, and the armature of magnetic circuit part is through driving the motion of promotion card in order to drive movable contact and stationary contact closure, and when promoting, armature is connected in the one end of promotion card, because the length of promotion card is longer, in order to prevent to promote the card and take place to warp, is provided with the locating part in the relay in order to restrict the motion of promotion card to when the motion of drive movable contact, can produce the friction between promotion card and the locating part, influence the motion accuracy of promotion card.

Disclosure of Invention

To solve at least one of the problems in the prior art described above, according to one aspect of the present invention, there is provided a relay comprising: the motion module comprises a connecting component and a plurality of movable contact groups arranged on the connecting component, and the movable contact groups are arranged at intervals along the x direction; the static module comprises a mounting frame and a plurality of static contact sets arranged on the mounting frame, wherein the plurality of static contact sets are arranged at intervals along the x direction, and one static contact set corresponds to one movable contact set one by one; the magnetic circuit system is used for propping 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 stationary contact group are correspondingly closed one by one; and the two ends of the first elastic reset piece are respectively abutted to the moving module and the static module, so that elastic force is applied to the moving module when the movable contact group and the static contact group are disconnected.

In this way, in the process that the movable contact point group of the moving module moves towards the fixed contact point group, electromagnetic force generated in the magnetic circuit system enables the rotation of the armature to be converted into the movement of the driving moving module along the y direction and along the linear direction so as to drive the movable contact point group and the fixed contact point group on the moving module to be closed, meanwhile, as the magnetic circuit system is propped against the middle part of the connecting part, driving force is provided for the middle part of the moving module, in the process that the driving moving module moves towards the fixed module, driving force applied to the moving module can be uniformly dispersed to the two ends of the moving module, each movable contact point group can be subjected to uniform pressure, so that the closing of the movable contact point group and the fixed contact point group can have higher accuracy, and meanwhile, the connecting part in the moving module is not easy to deform, and a limiting structure for limiting the movement of the moving module is not required to be independently arranged, so that the structure of the whole relay is simplified.

In some embodiments, the connecting component includes a sliding frame, a connecting frame, a pushing card and at least one elastic structure, the pushing card extends along the x direction, a plurality of moving contact sets are separately arranged on the pushing card, two ends of the elastic structure are respectively abutted to the pushing card and the sliding frame, and the middle part of the sliding frame is abutted to an armature in the magnetic circuit system, and the connecting frame is connected with the pushing card and is used for being pushed by the magnetic circuit system to slide by the sliding frame.

Therefore, under the driving force of the armature, the driving force drives the sliding frame to move along the y direction and gradually compresses the elastic structure, the elastic structure transmits the driving force to the pushing card, and finally the pushing card is closed with each movable contact group and each static contact group in a one-to-one correspondence mode.

In some embodiments, the elastic structure includes a first spring and a second spring surrounding the first spring, two ends of the second spring are respectively abutted to the pushing card and the sliding frame, one end of the first spring is connected to the pushing card, 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.

Like this, through setting up the elastic structure into the mode of two elastic components, under the drive of drive division, compress in proper order second spring and first spring for second spring and first spring produce elastic reaction jointly and resist electric repulsion, in order to guarantee the closure effect between each movable contact group and each stationary contact group.

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

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

In some embodiments, the connecting member includes a plurality of the resilient structures that are spaced apart between the pusher card and the carriage.

Therefore, under the magnetic force drive 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 push card can be driven to drive each movable contact group and each static contact group to be stably closed.

In some embodiments, the connecting component comprises two elastic structures, and the position where the magnetic circuit system and the sliding frame prop against each other is located in the middle of the two elastic structures.

In some embodiments, each movable contact group 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 push card along the z direction, each stationary contact group includes two stationary contacts separately disposed, and one movable contact is used for closing with one stationary contact in one-to-one correspondence.

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

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

In this way, the stable transmission of the driving force to each movable contact is ensured under the driving of the driving force of the magnetic circuit system.

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.

Therefore, by arranging the second guide structure, the motion module is limited to perform linear motion along the Y direction in the process of moving or moving away from the motion module relative to the static module, and the stability during motion is ensured.

In some embodiments, the first elastic restoring member is a spring, two ends of the first elastic restoring member respectively support against the connecting component and the mounting frame, and two free ends of the first elastic restoring member are bent towards the center direction of the first elastic restoring member.

Therefore, the tail end of the spring is arranged at the part which is not contacted with the plastic part in the middle by bending the two free tail ends of the elastic reset part towards the center direction of the spring, so that burrs at the tail end of the spring are prevented from scraping the plastic-shaped pushing clamp and the plastic-shaped mounting frame to generate scraps.

In some embodiments, the device further comprises a normally closed auxiliary contact structure, wherein the normally closed auxiliary contact structure is arranged on the mounting frame and is used for being matched with the connecting component, so that when the connecting component drives the movable contact group and the static contact group to be closed, the connecting component drives the auxiliary movable contact and the auxiliary static contact in the normally closed auxiliary contact structure to be disconnected.

Therefore, the auxiliary contact structure is arranged, and the on-off state between the static contact set and the movable contact set is transmitted through the on-off state between the auxiliary movable contact and the auxiliary static contact in the normally-closed auxiliary contact structure, so that the on-off condition of the static contact set and the movable contact set in use can be monitored conveniently.

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, wherein the elastic frame and the supporting frame are connected to the mounting frame, the auxiliary movable contact is arranged on one side of the elastic frame facing the mounting frame, the auxiliary stationary contact is arranged on one 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 elastic frame by the connecting component.

Like this, through the cooperation of elastic support and adapting unit, when driving movable contact group to the stationary contact group motion through adapting unit, adapting unit drive elastic support takes place elastic deformation in order to drive supplementary movable contact and supplementary stationary contact and turn into the off-state from the closed state to can judge the turn-on condition of stationary contact group and movable contact group this moment.

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

Therefore, when one movable contact point group and one static contact point are closed, the closed movable contact point and one static contact point phase can not be influenced by the closed electric arcs of the adjacent movable contact point and static contact point phase through the separation of the insulating parts, an insulating retaining wall is formed, the electric capacity is greatly enhanced, and the closing stability of the movable contact point group and the static contact point group is ensured.

In some embodiments, the insulating member includes a connector and a plurality of spaced apart insulating structures disposed on the connector, the plurality of insulating structures being arranged along an x-direction, the connector being connected to the mounting frame, one insulating structure being disposed between each adjacent two of the stationary contact sets.

Like this, connect through connector and mounting bracket to install the mounting bracket with the insulating part on, carry out every two to separate between the contact group through insulation system, when making between the contact group when closing, avoid receiving the influence of electric arc each other.

Drawings

Fig. 1 is a schematic structural view 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 view of the relay of FIG. 1 after concealing the housing;

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

FIG. 6 is a schematic view of the relay of FIG. 1 after concealing the housing and insulation;

FIG. 7 is a schematic diagram of the motion module and the stationary module of FIG. 4;

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

FIG. 9 is a schematic 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 view of the stationary module of FIG. 2;

fig. 12 is a schematic structural view of the normally closed auxiliary contact structure in 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, 11-core, 12-coil, 13-armature, 14-yoke, 15-armature, 151-moving part, 152-driving part, 16-second return spring, 17-coil terminal, 20-moving module, 21-connecting part, 211-carriage, 2111-first guide structure, 212-connecting frame, 213-push card, 2131-main body part, 2132-projection, 214-elastic structure, 2141-first spring, 2142-second spring, 22-moving contact set, 221-moving contact block, 222-moving contact, 30-stationary module, 31-mounting frame, 32-stationary contact set, 321-stationary contact, 33-stationary terminal set, 331-first stationary terminal, 332-second stationary terminal, 40-first return spring, 41-free end, 50-housing, 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 part, 713-auxiliary contact, 72-third movable contact, 72-auxiliary contact, 81-second stationary terminal, 332-second stationary terminal, 40-first return spring, 41-free end, 50-housing, 51-opening, 60-second auxiliary contact structure, 70-normally closed auxiliary contact structure, 71-elastic frame, 711-first connecting part, 713-third movable contact, 713-third movable contact, 72-third auxiliary contact, 72-movable contact, and 80-movable contact, and 80-auxiliary contact structure.

Detailed Description

For a 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 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, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured 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 herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The invention is described in further detail below 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 member 40, and a housing 50.

Referring to fig. 1, 2 and 4, the motion module 20 includes a connecting member 21 and a plurality of movable contact groups 22 disposed on the connecting member 21, where the plurality of movable contact groups 22 are spaced apart along an x direction; the stationary module 30 comprises a mounting frame 31 and a plurality of stationary contact sets 32 arranged on the mounting frame 31, wherein the plurality of stationary contact sets 32 are arranged at intervals along the x direction, and one stationary contact set 32 corresponds to one movable contact set 22 one by one; the magnetic circuit system 10 is used for propping against the middle part of the connecting mechanism and providing driving force for the connecting mechanism so as to drive the plurality of movable contact sets 22 to move in the y direction, so that one movable contact set 22 and one stationary contact set 32 are correspondingly closed one by one; the two ends of the first elastic restoring member 40 are respectively abutted against the moving module 20 and the stationary module 30, so as to apply elastic force to the moving module 20 when the moving contact 222 and the stationary contact 321 are disconnected.

In the above-mentioned relay 100, in the process that the moving contact group 22 of the moving module 20 moves towards the stationary 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 along the y direction and along the linear direction, so as to drive the moving contact group 22 and the stationary contact group 32 on the moving module 20 to be closed, meanwhile, because the magnetic circuit system 10 is propped against the middle part of the connecting part 21, the driving force is provided for the middle part of the moving module 20, so that in the process that the driving moving module 20 moves towards the stationary module 30, the driving force applied on the moving module 20 can be uniformly dispersed to the two ends of the moving module 20, so that each moving contact group 22 can be subjected to uniform pressure, and the closing of the moving contact group 22 and the stationary contact group 32 can have higher accuracy, and meanwhile, the connecting part 21 in the moving module 20 is not easy to deform, and a limiting structure for limiting the movement of the moving module 20 is not required to be separately arranged, thus simplifying the structure of the whole relay 100.

For convenience of description, the x direction in this embodiment indicates a left-right direction, the y direction indicates an up-down direction, and the z direction indicates an up-down direction, that is, the direction in which each movable contact group 22 is arranged is indicated as a left-right direction, and the movement direction of each movable contact group 22 is driven as an 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 house the components in the housing cavity of the housing 50 to protect the components therein.

Specifically, the casing 50 is square and has an opening 51, and the magnetic circuit system 10, the moving module 20 and the stationary module 30 are sequentially disposed from the sealed end of the casing 50 toward the opening 51, and the stationary module 30 can be exposed from the opening 51, so that the communication action of the external circuit is conveniently performed, and the on-off of the external system circuit is controlled.

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

The frame 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 frame 13 is penetrated along the x direction, the coil 12 is wound outside the iron core 11 and the frame 13, and two coil terminals 17 are respectively electrically connected with the coil 12 and used for supplying power to the coil 12. The yoke 14 forms 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 so as to be 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 yoke to drive the driving portion 152 to rotate, and the moving portion 151 is configured to move toward the iron core 11 under 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 that the driving portion 151 is configured to rotate to convert rotation of the driving portion 152 into linear movement of the moving module 20 in the y direction, so that the moving module 20 and the stationary module 30 are closed. The second elastic restoring member 16 is supported on 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 is lost, the driving portion 152 can be pushed to quickly return to the original state by the pushing of the elastic force of the second elastic return member 16.

Specifically, when the coil 12 is energized via the two coil terminals 17, the armature 15 rotates relative to the yoke 14 due to the magnetic attraction force generated between the coil 12 and the core 11, and the armature 15 is brought into contact with and attracted to the core 11. At this time, the second elastic restoring member 16 is elastically deformed with the rotation of the armature 15. The rotational force of the armature 15 acts on the movement module 20, causing a linear movement of the movement module 20 in the y-direction. Thereby, the gap between each movable contact group 22 and each stationary contact group 32 is changed from the open state to the closed state.

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

Accordingly, when the coil 12 is changed from the energized state to the non-energized state, the magnetic attraction force between the armature 15 and the core 11 is lost, 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 one embodiment of the present invention, the connection member 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, a plurality of moving contact sets 22 are separately disposed on the pushing card 213, two ends of the elastic structure 214 are abutted against the pushing card 213 and the sliding frame 211, and a middle portion of the sliding frame 211 abuts against the armature 15 in the magnetic circuit 10, the connection frame 212 is connected with the pushing card 213 for sliding the sliding frame 211 under the pushing of the magnetic circuit 10, so that the driving force drives the sliding frame 211 to move along the y direction under the driving force of the armature 15, and gradually compresses the elastic structure 214, the elastic structure 214 transmits the driving force to the pushing card 213, and finally the pushing card 213 carries each moving contact set 22 to be closed in one-to-one correspondence with each stationary contact set 32.

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

initial state: the moving part 151 of the armature 15 and the iron core 11 are in a disconnected state, and the driving part 152 of the armature 15 is abutted against the upper surface of the sliding frame 211;

first change state: as the coil 12 is energized to the two coil terminals 17, the armature 15 rotates relative to the yoke 14 due to the 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, rightward; simultaneously, the driving part 152 is driven to rotate by the movement, the driving part 152 rotates downwards, and the elastic structure 214 is primarily compressed until each movable contact group 22 and each static contact group 32 are just contacted and closed, and the moving part 151 and the iron core 11 are still in an opened state and are not sucked at the time;

second change state: as the magnetic attractive force continues to attract the moving part 151 to move towards the iron core 11, so that the moving part 151 completes the over-travel path, the moving part 151 continues to move towards the iron core 11 and drives the driving part 152 to rotate, so that the driving part 152 continues to drive the sliding frame 211 to compress the elastic structure 214 further until the moving part 151 and the armature 15 complete closing.

Therefore, due to the arrangement of the elastic structure 214, when the driving portion 152 gradually applies pressure to the sliding frame 211, the elastic structure 214 is further compressed, so that a larger elastic reaction force can be generated, so as to press the closing phase between each movable contact group 22 and each static contact group 32, and the electric repulsive force is resisted by the elastic reaction force, so that the situation that the movable contact 222 is sprung due to the electric repulsive force generated after the movable contact 222 and the static contact 321 are closed is avoided.

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

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

In this embodiment, the specific refinement process of the process of compressing the second spring 2142 and the first spring 2141 in sequence is as follows:

first change state: as the coil 12 is energized to the two coil terminals 17, the armature 15 rotates relative to the yoke 14 due to the 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, rightward; simultaneously, the driving part 152 is driven to rotate by the movement, the driving part 152 rotates downwards, the second springs 2141 are compressed until each movable contact group 22 and each static contact group 32 are just contacted and closed, and the moving part 151 and the iron core 11 are still in an opened state and are not closed at the moment;

second change state: as the magnetic attractive force continues to attract the moving part 151 to move towards the direction of the iron core 11, so that the moving part 151 completes the over-travel path, the moving part 151 continues to move towards the direction of the iron core 11 and drives the driving part 152 to rotate, so that the driving part 152 continues to drive the sliding frame 211 to further compress the second spring 2142, and simultaneously compresses the first spring 2141 until the moving part 151 and the armature 15 complete the closing, so that the second spring 2142 and the first spring 2141 jointly provide pressure to be pressed to the closing between each movable contact group 22 and each stationary contact group 32.

As can be appreciated, referring to fig. 5 and 8, since one end of the first spring 2141 is connected to the push card 213 and the other end is a free end, in order to ensure stability of movement of the sliding frame 211 when the first spring 2141 is compressed, a first guiding structure 2111 is provided on a side of the sliding frame 211 facing the push card 213 for guiding the first spring 2141 when the sliding frame 211 compresses the first spring 2141, so that the first spring 2141 can be compressed along an up-down direction by providing the first guiding structure 2111 for guiding the first spring 2141 when the first spring 2141 is compressed, so as to avoid shaking during compression to affect the closing effect of each movable contact group 22 and each stationary contact group 32.

Specifically, the first guiding structure 2111 in the present embodiment is a guide post, and is disposed on a side of the sliding frame 211 facing the push card 213, and in an initial state, the second spring 2142 surrounds the first guiding structure 2111, the first guiding 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 10, the first guiding structure 2111 extends into the central channel of the first spring 2141, and the sliding frame 211 compresses the first spring 2141.

In addition, in order to ensure that the push card 213 can drive each movable contact group 22 and each stationary contact group 32 to perform stable closing 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 push card 213 and the sliding frame 211, so that the acting force of the armature 15 on the sliding frame 211 is uniformly dispersed to two ends of the sliding frame 211 under the driving force of the magnetic circuit system 10, and the push card 213 can be driven to drive each movable contact group 22 and each stationary contact group 32 to perform stable closing.

Specifically, in order to ensure the transmission of force and the simplicity of the structure of the motion module 20, the connecting component 21 includes two elastic structures 214, and the position where the magnetic circuit system 10 abuts against the connecting component 21 is located in the middle of the two elastic structures 214, so that the acting force of the armature 15 on the sliding frame 211 is uniformly dispersed to two ends of the sliding frame 211 under the driving of the magnetic force of the magnetic circuit system 10, so that the push card 213 can be driven to drive each moving contact group 22 and each stationary contact group 32 to be stably closed. In other embodiments, other numbers of elastic structures 214 may be provided as desired, for example, when three are provided, three elastic structures 214 are uniformly provided, and just one elastic structure 214 is located below the position where the magnetic circuit system 10 and the connecting member 21 abut; when the four elastic structures 214 are arranged, the four elastic structures 214 are uniformly arranged, the positions where the magnetic circuit system 10 and the connecting component 21 abut against are located at the middle positions 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, so 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, and the push card 213 can be driven to drive each movable contact group 22 and each static contact group 32 to be stably closed.

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

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

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

In addition, since the movement module 20 needs to move in the Y direction, in order to ensure that the movement module 20 moves in a smooth and linear manner in the Y direction, the relay 100 further includes a second guide structure 60, where the second guide structure 60 is connected to the stationary module 30 and slidingly connected to the movement module 20, so as to guide the movement module 20 when moving in the Y direction, that is, the second guide structure 60 extends in the Y direction, so that by providing the second guide structure 60, during the process of moving the movement module 20 close to or away from the stationary module 30, the movement module 20 is restricted from moving in the Y direction, and stability during movement is ensured.

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

Referring to fig. 12, in one 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, where the normally closed auxiliary contact structure 70 is provided on the mounting frame 31 and is used for cooperating 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 the open state between the stationary contact group 32 and the moving contact group 22 is transferred through the on-off state between the auxiliary moving contact 72 and the auxiliary stationary contact 74 in the normally closed auxiliary contact structure 70 by setting the auxiliary contact structure 70, so as to facilitate monitoring of the on-state of the moving 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 supporting frame 73 and an auxiliary fixed contact 74, the elastic frame 71 and the supporting frame 73 are connected to the mounting frame 31, the auxiliary movable contact 72 is arranged on one side of the elastic frame 71 facing the mounting frame 31, the auxiliary fixed contact 74 is arranged on one side of the supporting frame 73 facing away from the mounting frame 31, the auxiliary movable contact 72 and the auxiliary fixed contact 74 can be changed from a closed state to an open state under the pushing of the connecting part 21 to the elastic frame 71, so that when the movable contact group 22 is driven to move towards the fixed contact group 32 through the cooperation of the elastic frame 71 and the connecting part 21, the connecting part 21 drives the elastic frame 71 to elastically deform so as to drive the auxiliary movable contact 72 and the auxiliary fixed contact 7 to be converted from the closed state to the open state, and the conduction condition of the fixed contact group 32 and the movable contact group 22 can be judged at this time.

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

The support frame 73 in this embodiment includes a third connecting portion 731 and a fourth connecting portion 732, where 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 is penetrating through the mounting frame 31 and can be exposed relative to the housing 50 so as to be communicated 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 third connecting portion 731 and the fourth connecting portion 732 is 90 degrees, the fourth connecting portion 732 extends in the x direction, and the auxiliary stationary contact 74 is disposed on one side of the fourth connecting portion 732 opposite to the mounting frame 31, so that the auxiliary movable contact 72 and the auxiliary stationary contact 74 that are disposed opposite to each other can be in a closed or open state.

Specifically, referring to fig. 10, the deformation of the elastic deformation portion 713 is driven by the movement of the push card 213 in the present embodiment. Specifically, the pusher card 213 includes a main body portion 2131 and a protrusion 2132 provided at an end of the main body portion 2131, the protrusion 2132 being provided at an end of the main body portion 2131 extending in the x-direction, such that when the pusher card 213 moves downward, the protrusion 2132 drives the elastic deformation portion 713 to be elastically deformed, driving the disconnection between the auxiliary movable contact 72 and the auxiliary stationary contact 74.

Referring to fig. 13, in one embodiment of the present invention, in order to ensure stability of the moving contact set 22 and the stationary contact 321 when closed, and avoid an arc influence between adjacent contact sets, the relay 100 further includes an insulating member 80 connected to the mounting frame 31 for separating each adjacent two stationary contact sets 32, for separating each adjacent two contact sets into independent closed states when the moving contact set 32 and the moving contact set 22 are closed, that is, when one moving contact set 22 and one stationary contact 321 are closed, the closed moving contact 222 and one stationary contact 321 can be not influenced by the closed arc of the adjacent moving contact 222 and one stationary contact 321 by separation of the insulating member 80, so as to form an insulating retaining wall, greatly enhance electrical capability, and ensure the closing stability of the moving contact set 22 and the stationary contact set 32.

Specifically, the insulator 80 includes a connector 81 and a plurality of spaced apart insulating structures 82 disposed on the connector 81, the connector 81 is connected to the mounting frame 31, the plurality of insulating structures 82 are arranged along the x-direction, and an insulating structure 82 is disposed between every two adjacent stationary contact sets 32, so that the insulator 80 is mounted on the mounting frame 31 through the connector 81 and the mounting frame 31, and the contact sets are separated by two through the insulating structure 82, so that the contact sets are prevented from being affected by an arc when being closed.

The insulating structure 82 in this embodiment includes two baffles 821 that are separately disposed, and the two baffles 821 are disposed in parallel along the z direction, and one baffle 821 is disposed between every two stationary contacts 321, so that the retaining wall effect is achieved through the baffles 821.

Referring to fig. 14, in an embodiment of the present invention, the first elastic restoring member 40 is a spring, and since the pushing card 213 and the mounting frame 31 are made of plastic materials, in order to avoid burrs generated when the first elastic restoring member 40 is opposite to the pushing card 213 and the mounting frame 31, respectively, two ends of the first elastic restoring member 40 are respectively abutted against the pushing card 213 and the mounting frame 31, and two free ends 41 of the first elastic restoring member 40 are bent toward the center of the spring, so that the tail end of the spring is placed at a position where the tail end of the spring does not contact the plastic member, and the burrs at the tail end of the spring are prevented from scraping the plastic pushing card 213 and the plastic mounting frame 31 to generate scraps.

The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims

1. A relay, comprising:

the motion module comprises a connecting component and a plurality of movable contact groups arranged on the connecting component, wherein the movable contact groups are arranged in a separated mode along the x direction;

the static module comprises a mounting frame and a plurality of static contact sets arranged on the mounting frame, wherein the plurality of static contact sets are arranged at intervals along the x direction, and one static contact set corresponds to one movable contact set one by one;

the magnetic circuit system is used for propping 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 stationary contact group are correspondingly closed one by one;

and the two ends of the first elastic reset piece are respectively abutted to the moving module and the static module, so that elastic force is applied to the moving module when the movable contact group and the static contact group are disconnected.

2. The relay according to claim 1, wherein the connecting component comprises a sliding frame, a connecting frame, a pushing card and at least one elastic structure, the pushing card extends along the x direction, a plurality of movable contact groups are separated and arranged on the pushing card, two ends of the elastic structure are respectively abutted against the pushing card and the sliding frame, the middle part of the sliding frame is abutted against an armature in the magnetic circuit system, and the connecting frame is connected with the pushing card and used for enabling the sliding frame to slide 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 are respectively abutted against the pushing card and the sliding frame, one end of the first spring is connected with the pushing card, the other end of the first spring 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. A relay according to claim 3, wherein a side of the carriage facing the pusher card is provided with a first guide structure for guiding the first spring when the carriage compresses the first spring.

5. A relay according to claim 3, wherein the connecting member includes a plurality of the elastic structures, the plurality of elastic structures being disposed apart between the push card and the carriage.

6. The relay according to claim 5, wherein the connecting member includes two of the elastic structures, and the position where the magnetic circuit system and the carriage abut is located in the middle of the two elastic structures.

7. The relay according to claim 2, wherein each movable contact group comprises a movable contact block and two movable contacts arranged at two ends of the movable contact block, the movable contact block is vertically connected with the push card along the z direction, each stationary contact group comprises two stationary contacts which are arranged separately, and one movable contact is used for being closed in one-to-one correspondence with one stationary contact.

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

9. The relay of claim 1, further comprising a second guide structure coupled to the stationary module and slidable relative to the moving module for guiding the moving module as it moves in the y-direction.

10. The relay according to claim 1, wherein the first elastic restoring member is a spring, two ends of the first elastic restoring member are respectively abutted against the connecting member and the mounting frame, and two free ends of the first elastic restoring member are bent toward the center direction of the first elastic restoring member.

11. The relay of claim 1, further comprising a normally closed auxiliary contact structure disposed on the mounting frame and configured to cooperate with the connecting member to drive the auxiliary moving contact and the auxiliary stationary contact of the normally closed auxiliary contact structure to open when the connecting member drives the moving contact group and the stationary contact group to close.

12. The relay of 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, wherein the elastic frame and the supporting frame are connected to the mounting frame, the auxiliary movable contact is arranged on one side of the elastic frame facing the mounting frame, the auxiliary stationary contact is arranged on one 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 part to the elastic frame.

13. The relay of claim 1, further comprising an insulator coupled to the mounting for separating each adjacent two of the stationary contact sets.

14. The relay of claim 13, wherein said insulator comprises a connector and a plurality of spaced apart insulator structures disposed on said connector, a plurality of said insulator structures being arranged in the x-direction, said connector being connected to said mounting bracket, one of said insulator structures being disposed between each adjacent two of said stationary contact sets.