WO2024000770A1

WO2024000770A1 - Relay

Info

Publication number: WO2024000770A1
Application number: PCT/CN2022/114852
Authority: WO
Inventors: 唐俊平; 于荣爱; 朱陆宁; 罗捷; 李文静
Original assignee: 三友联众集团股份有限公司
Priority date: 2022-06-30
Filing date: 2022-08-25
Publication date: 2024-01-04
Also published as: CN117373870A

Abstract

Disclosed in the present invention is a relay, comprising: a moving module, comprising a connection part and a plurality of moving contact groups provided on the connection part, the plurality of moving contact groups being arranged separately in the x direction; a stationary module, comprising a mounting frame and a plurality of stationary contact groups provided on the mounting frame, the plurality of stationary contact groups being arranged separately in the x direction, and the stationary contact groups and the moving contact groups corresponding to each other one to one; a magnetic circuit system, used for abutting against the middle portion of a connection mechanism and used for providing a driving force for the connection mechanism so as to drive the plurality of moving contact groups to move in the y direction, so that the moving contact groups and the stationary contact groups are correspondingly closed one to one; and first elastic reset pieces, each having two ends abutted against the moving module and the stationary module respectively so as to apply an elastic force to the moving module when the moving contact group and the stationary contact group are disconnected. In the present invention, the connection part of the moving module is not prone to deformation, so that there is no need to provide a separate limiting structure for limiting the movement of the moving module, thus simplifying the structure of the whole relay.

Description

relay

Technical field

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

Background technique

A relay is an automatic switching component that uses electromagnetic force to drive relative movement of mechanical components to produce a predetermined response. It generally consists of a base, an upper shell, a magnetic circuit part and a contact part. The magnetic circuit part includes a coil, a coil frame, an iron core, a yoke and an armature. The contact part includes a moving spring part and a static spring part. When a current passes through the coil, an electromagnetic force is generated, and the armature is attracted, thereby driving the moving contact of the moving spring part to contact or disconnect with the static contact of the static spring part; when the current in the coil disappears, the electromagnetic force disappears and the armature Reset, so that the moving contact of the moving spring part is disconnected or contacted with the static contact of the static spring part, so that the purpose of conducting or cutting off the circuit is achieved through the attraction or disconnection of the moving contact and the static contact.

An electromagnetic relay in the prior art has multiple movable contacts installed along the length direction of the push card. The armature of the magnetic circuit part drives the movement of the push card to drive the movable contacts and the static contacts to close. When pushing, the armature Connected to one end of the push card. Due to the long length of the push card, in order to prevent the push card from deforming, a limiter is provided in the relay to limit the movement of the push card. Thus, when the driving contact moves, the push card and the limiter Friction will occur between them, affecting the accuracy of the movement of the push card.

Contents of the invention

In order to solve at least one problem existing in the above-mentioned prior art, according to one aspect of the present invention, a relay is provided, including: a motion module, including a connecting component and a plurality of moving contact groups provided on the connecting component. , a plurality of the moving contact groups are arranged separately along the x direction; the stationary module includes a mounting frame and a plurality of static contact groups arranged on the mounting frame, and the plurality of static contact groups are arranged along the x direction Separately arranged, and one said static contact group and one said moving contact group correspond one to one; a magnetic circuit system is used to resist the middle part of the connecting mechanism and to provide driving force to the connecting mechanism, To drive a plurality of the movable contact groups to move in the y direction, so that one of the movable contact groups and one of the static contact groups are closed in one-to-one correspondence; the first elastic return member has both ends respectively in contact with the The moving module and the stationary module are configured to apply elastic force to the moving module when the moving contact group and the stationary contact group are disconnected.

In this way, during the movement of the moving contact group of the motion module to the static contact group, the electromagnetic force generated in the magnetic circuit system converts the rotation of the armature into a motion of the driving motion module along the y direction and along the linear direction to drive The moving contact group and the static contact group on the motion module are closed. At the same time, because the magnetic circuit system resists the middle part of the connecting component, it provides driving force to the middle part of the motion module, thereby driving the motion module in the process of moving to the stationary module. , the driving force exerted on the motion module can be evenly dispersed to both ends of the motion module, so that each moving contact group can receive uniform pressure, so that the closing of the moving contact group and the static contact group can have higher At the same time, the connecting parts in the motion module are not easily deformed, and there is no need to set up a separate limit structure to limit the motion of the motion module, simplifying the structure of the entire relay.

In some embodiments, the connecting component includes a sliding frame, a connecting frame, a push card and at least one elastic structure. The push card extends along the x direction, and a plurality of the movable contact groups are separated from the push card. card, the two ends of the elastic structure are respectively in contact with the push card and the sliding frame, and the middle part of the sliding frame resists the armature in the magnetic circuit system, and the connecting frame is connected to the pushing card The card is used for sliding the sliding frame under the push of the magnetic circuit system.

In this way, under the driving force of the armature, the driving force drives the sliding frame to move in the y direction and gradually compresses the elastic structure. The elastic structure transmits the driving force to the push card. Finally, the push card brings each moving contact group and each static contact respectively. Group one-to-one correspondence is closed.

In some embodiments, the elastic structure includes a first spring and a second spring surrounding the first spring. Both ends of the second spring are respectively in contact with the push card and the sliding frame. , one end of the first spring is connected to the push card, and the other end is a free end. Driven by the magnetic circuit system, the sliding frame compresses the second spring and the first spring in sequence.

In this way, by arranging the elastic structure as two elastic members, 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 an elastic reaction force to resist the electric force. Repulsive force to ensure the closing effect between each moving contact group and each static contact group.

In some embodiments, a first guide structure is provided on the side of the sliding frame facing the push card, so that when the sliding frame compresses the first spring, the first guide structure is provided for the first spring to move. guide.

In this way, the first guide structure is provided to guide the first spring when it is compressed, so that the first spring can be compressed along the up and down direction to avoid shaking during the compression process and affecting each movable contact group and the The closing effect of each static contact group.

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

In this way, driven by the magnetic force of the magnetic circuit system, the force exerted by the armature on the sliding frame is evenly dispersed to both ends of the sliding frame, so that the card can be driven to drive each moving contact group and each static contact group. Smooth closure.

In some embodiments, the connecting component includes two elastic structures, and the position where the magnetic circuit system and the sliding frame resist is located in the middle of the two elastic structures.

In some embodiments, each moving contact group includes a moving point block and two moving contacts provided at both ends of the moving point block. The moving point block is vertically connected to the push card along the z direction, and each moving point block is vertically connected to the push card along the z direction. Each of the static contact groups includes two separately arranged static contacts, and one of the movable contacts is used to close in one-to-one correspondence with one of the static contacts.

In this way, by arranging two movable contacts in each movable contact group, the contact gap can be shortened. That is, the contact gap in this embodiment is the two movable contacts and the static contact on the movable contact block. The sum of the gaps between them, when driving the moving contact and the static contact to close, the electromagnetic suction force that the magnetic circuit system needs to provide will be smaller, that is, by setting two moving contacts and a static contact, it can be shortened The distance between the moving contact and the static contact is reduced, the electromagnetic suction value is reduced, and the structure of the entire relay is simplified, making the structure more compact.

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

In this way, driven by the driving force of the magnetic circuit system, the stable transmission of the driving force to each moving contact is ensured.

In some embodiments, the relay further includes a second guide structure, the second guide structure is connected to the stationary module and can slide relative to the moving module, so that the moving module can move in the y Guidance when moving in the direction.

In this way, by arranging the second guide structure, when the moving module moves closer to or farther away from the stationary module, the linear movement of the moving module in the Y direction is restricted, ensuring stability during movement.

In some embodiments, the first elastic return member is a spring, and both ends of the first elastic return member resist the connecting component and the mounting frame respectively. The free ends are bent toward the center of the first elastic restoring member.

In this way, by bending both free ends of an elastic return piece toward the center of the spring, the tail end of the spring is placed in an internal part that cannot contact the plastic part, thus preventing the burrs at the tail end of the spring from scratching the plastic part. Pushing the card and plastic mounting bracket creates debris.

In some embodiments, a normally closed auxiliary contact structure is also included. The normally closed auxiliary contact structure is provided on the mounting bracket and is used to cooperate with the connecting component to drive the moving part when the connecting component When the contact group and the static contact group are closed, the connecting component drives the auxiliary movable contact and the auxiliary static contact in the normally closed auxiliary contact structure to disconnect.

In this way, by setting up the auxiliary contact structure, the on-off state between the auxiliary movable contact and the auxiliary static contact in the normally closed auxiliary contact structure is used to transmit the off-state between the static contact group and the movable contact group, so that It is used to monitor the conduction status of the static contact group and the moving contact group during use.

In some embodiments, the normally closed auxiliary contact structure includes an elastic frame, an auxiliary movable contact, a support frame and an auxiliary static contact. The elastic frame and the support frame are connected to the installation frame, and the auxiliary The movable contact is provided on the side of the elastic frame facing the installation frame, the auxiliary static contact is provided on the side of the support frame facing away from the installation frame, and the connecting component is connected to the elastic frame. Under the push of , the auxiliary movable contact and the auxiliary static contact can change from the closed state to the open state.

In this way, through the cooperation of the elastic frame and the connecting part, when the connecting part drives the movable contact group to move to the static contact group, the connecting part drives the elastic frame to elastically deform to drive the auxiliary moving contact and the auxiliary static contact from the closed state. It is in the disconnected state, so that the conduction status of the static contact group and the moving contact group can be judged at this time.

In some embodiments, an insulating member is further included, and the insulating member is connected to the mounting frame and used to separate each two adjacent static contact groups.

In this way, when a moving contact group and a stationary contact are closed, through the separation of the insulating member, the closed movable contact and the stationary contact are protected from the adjacent movable contact and the stationary contact. The influence of the arc caused by the closing of the contact phase forms an insulating barrier, which greatly enhances the electrical capability and ensures the closing stability of the moving contact group and the static contact group.

In some embodiments, the insulating member includes a connecting body and a plurality of separated insulating structures provided on the connecting body, the plurality of insulating structures are arranged along the x direction, and the connecting body is connected to the mounting frame, and one insulation structure is provided between each two adjacent static contact groups.

In this way, the connector and the mounting frame are connected to install the insulating piece on the mounting frame, and the contact groups are separated by two through the insulation structure, so that when the contact groups are closed, they can avoid being affected by each other. Effects of arcing.

Description of drawings

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

Figure 2 is an exploded schematic diagram of the relay in Figure 1;

Figure 3 is a schematic structural diagram of the housing in Figure 1;

Figure 4 is a schematic structural diagram of the relay in Figure 1 with its housing hidden;

Figure 5 is a schematic cross-sectional view of the relay in Figure 4 after the housing is hidden;

Figure 6 is a schematic structural diagram of the relay in Figure 1 with the housing and insulating parts hidden;

Figure 7 is a schematic structural diagram of the motion module and the static module in Figure 4;

Figure 8 is a schematic cross-sectional view of the moving module and the stationary module in Figure 7;

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

Figure 10 is a schematic structural diagram of the motion module in Figure 2;

Figure 11 is a schematic structural diagram of the static module in Figure 2;

Figure 12 is a schematic structural diagram of the normally closed auxiliary contact structure in Figure 2;

Figure 13 is a schematic structural diagram of the insulating member in Figure 2;

FIG. 14 is a schematic structural diagram of the first reset elastic member in FIG. 2 .

Among them, the reference symbols have the following meanings:

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

Detailed ways

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with 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", "back", "left", "right", "vertical", "horizontal", "top", The orientations or positional relationships indicated by "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply the device or device referred to. Elements must have a specific orientation, be constructed and operate in a specific orientation and therefore are not to be construed as limitations of the invention.

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

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

Referring to FIGS. 1 to 14 , a relay 100 provided in an embodiment of the present invention includes a magnetic circuit system 10 , a moving module 20 , a stationary module 30 , a first elastic return member 40 and a housing 50 .

Among them, please refer to Figures 1, 2 and 4. The motion module 20 includes a connecting component 21 and a plurality of movable contact groups 22 provided on the connecting component 21. The plurality of movable contact groups 22 are spaced apart along the x direction; stationary The module 30 includes a mounting frame 31 and a plurality of static contact groups 32 provided on the mounting frame 31. The plurality of static contact groups 32 are spaced apart along the x direction, and a static contact group 32 and a movable contact group 22 are Correspondingly; the magnetic circuit system 10 is used to resist the middle part of the connecting mechanism, and is used to provide driving force to the connecting mechanism to drive multiple movable contact groups 22 to move in the y direction, so that one movable contact group 22 and one The static contact groups 32 are closed in one-to-one correspondence; both ends of the first elastic return member 40 are respectively in contact with the motion module 20 and the static module 30 to exert force on the motion module 20 when the movable contact 222 and the static contact 321 are disconnected. Elasticity.

In the relay 100 described above, when the moving contact group 22 of the motion module 20 moves toward the static contact group 32, the electromagnetic force generated in the magnetic circuit system 10 converts the rotation of the armature 15 into driving the motion module 20 along the y direction and along the Movement in the linear direction drives the movable contact group 22 and the static contact group 32 on the motion module 20 to close. At the same time, because the magnetic circuit system 10 resists the middle part of the connecting component 21, it provides drive to the middle part of the motion module 20. Therefore, in the process of driving the motion module 20 to move to the stationary module 30, the driving force exerted on the motion module 20 can be evenly distributed to both ends of the motion module 20, so that each movable contact group 22 can receive a uniform force. pressure, so that the closing of the moving contact group 22 and the static contact group 32 can be performed with higher accuracy. At the same time, the connecting component 21 in the motion module 20 is not easily deformed, and there is no need to set a separate limit to limit the motion of the motion module 20. structure, simplifying the structure of the entire relay 100.

For convenience of description, the x direction in this embodiment represents the left and right direction, the y direction represents the up and down direction, and the z direction represents the up and down direction. That is, the direction in which each movable contact group 22 is arranged is represented as the left and right direction, and the direction in which each movable contact group 22 is driven is driven. The movement direction of the point group 22 is the up and down direction.

Referring to FIGS. 1 to 3 , in one embodiment of the present invention, the relay 100 further includes a housing 50 to receive various components in the receiving cavity of the housing 50 to protect the various 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 arranged in sequence from the sealed end of the housing 50 toward the opening 51 . The stationary module 30 can pass through the opening 51 Exposed to facilitate the connection of external circuits to control the on and off of external system circuits.

Please refer to Figures 5 and 9. In one 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 return member 16 and two coil terminals. 17.

Among them, the frame 13 is used to install the iron core 11, the coil 12, the yoke 14, the armature 15 and the second elastic return member 16. The iron core 11 is cylindrical and passes through the frame 13 along the x direction. The coil 12 is wound around In addition to the iron core 11 and the frame 13, two coil terminals 17 are electrically connected to the coil 12 respectively for supplying power to the coil 12. The yoke 14 constitutes a part of the magnetic path through which the magnetic flux generated by the coil 12 passes. The armature 15 is supported by the magnetic yoke and can rotate around the portion supported by the yoke 14 .

Among them, the armature 15 in this embodiment is roughly L-shaped and includes a moving part 151 and a driving part 152. The moving part 151 is supported by a magnetic yoke to drive the driving part 152 to rotate. The moving part 151 is used when the coil 12 is powered. It moves in the direction of the iron core 11 under the generated electromagnetic force to attract the iron core 11. The driving part 152 and the motion module 20 resist each other for driving and rotating the moving part 151, so as to convert the rotation of the driving part 152 into The motion module 20 moves linearly in the y direction, so that the motion module 20 and the stationary module 30 are closed. The second elastic return member 16 is supported on the driving part 152, so that after the coil 12 is energized and the driving part 152 rotates, the second elastic return member 16 is driven to elastically deform; when the power disappears, the second elastic return member 16 is Driven by the elastic force of 16 to return to its original state, the driving part 152 can be pushed to quickly return to its original state.

Specifically, when the coil 12 is energized through the two coil terminals 17 , under the action of the magnetic attraction generated between the coil 12 and the iron core 11 , the armature 15 rotates relative to the yoke 14 , and the armature 15 and the iron core 11 Contact suction. At this time, as the armature 15 rotates, the second elastic return member 16 undergoes elastic deformation. The rotational force of the armature 15 acts on the motion module 20, causing the motion module 20 to move linearly along the y direction. As a result, the relationship between each movable contact group 22 and each stationary contact group 32 changes from an open state to a closed state.

Specifically, the closed state in this embodiment refers to a state in which the movable contacts 222 in a movable contact group 22 and the static contacts 321 in a static contact group 32 are closed in one-to-one correspondence to supply power to the load. ; The open state refers to a state in which the movable contact 222 in a movable contact group 22 and the stationary contact 321 in a stationary contact group 32 are disconnected from each other and no power is supplied to the load.

Therefore, when the coil 12 is switched from the energized state to the non-energized state, the magnetic attraction between the armature 15 and the iron core 11 disappears, and the armature 15 moves away from the iron core under the elastic force of the second elastic return member 16 11 to restore the original state.

Please refer to Figures 6 to 8. In one embodiment of the present invention, the connecting component 21 includes a sliding frame 211, a connecting frame 212, a pushing card 213 and at least one elastic structure 214. The pushing card 213 extends along the x direction, and a plurality of moving The contact group 22 is separated from the push card 213. The two ends of the elastic structure 214 are in contact with the push card 213 and the sliding frame 211, and the middle part of the sliding frame 211 resists the armature 15 in the magnetic circuit system 10. The connecting frame 212 is connected The push card 213 is used to slide the sliding frame 211 under the push 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 in the y direction, and gradually compresses the elastic structure 214. The elastic structure 214 The driving force is transmitted to the push card 213, and finally the push card 213 brings each movable contact group 22 and each static contact group 32 to close in one-to-one correspondence.

Specifically, in this embodiment, the closing of each movable contact group 22 and each static contact group 32 in one-to-one correspondence includes the following process:

Initial state: each movable contact group 22 and each static contact group 32 are in a disconnected 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 pressed against the sliding frame 211 surface;

First change state: As the coil 12 is energized to the two coil terminals 17, under the action of the magnetic attraction generated between the coil 12 and the iron core 11, the armature 15 rotates relative to the yoke 14, and the moving part of the armature 15 151 moves in the direction of the iron core 11, that is, moves to the right; at the same time, the movement drives the driving part 152 to rotate, the driving part 152 rotates downward, and initially compresses the elastic structure 214 to each movable contact group 22 and each static contact. Group 32 has just contacted and closed. This time, the moving part 151 and the iron core 11 are still in a disconnected state and have not yet been closed;

The second change state: as the magnetic attraction continues to attract the moving part 151 to move in the direction of the iron core 11, so that the moving part 151 completes the overtravel distance, because the moving part 151 continues to move in the direction of the iron core 11, it will drive the drive The part 152 continues to rotate, so that the driving part 152 continues to drive the sliding frame 211 to further compress the elastic structure 214 until the moving part 151 and the armature 15 are completely closed.

Therefore, due to the arrangement of the elastic structure 214, when the driving part 152 gradually applies pressure to the sliding frame 211, the elastic structure 214 is further compressed, which can generate a greater elastic reaction force to move each movable contact group 22 and each static contact point. The closed phases between the groups 32 are compressed to resist the electric repulsion through elastic reaction force, so as to prevent the movable contact 222 from popping open due to the electric repulsion generated after the movable contact 222 and the stationary contact 321 are closed.

Please refer to Figure 8. In one embodiment of the present invention, in order to ensure that sufficient elastic reaction force is generated to resist the electric repulsion force, the elastic structure 214 includes a first spring 2141 and a second spring 2142 surrounding the first spring 2141. The two ends of the second spring 2142 are respectively in contact with the push card 213 and the sliding frame 211. One end of the first spring 2141 is connected to the pushing card 213, and the other end is a free end. Driven by the magnetic circuit system 10, the sliding frame 211 sequentially The second spring 2142 and the first spring 2141 are compressed, so that by arranging the elastic structure 214 as two elastic pieces, driven by the driving part 152, the second spring 2142 and the first spring 2141 are sequentially compressed, so that the second spring 2142 and the first spring 2141 are compressed sequentially. The second spring 2142 and the first spring 2141 jointly generate an elastic reaction force to resist the electric repulsion force to ensure the closing effect between each moving contact group 22 and each static contact group 32 .

Specifically, the axis directions of the second spring 2142 and the first spring 2141 in this embodiment are both up and down, thereby ensuring the stability of the up and down motion when the sliding frame 211 moves downward.

Among them, in this embodiment, the process of sequentially compressing the second spring 2142 and the first spring 2141 is detailed as follows:

First change state: As the coil 12 is energized to the two coil terminals 17, under the action of the magnetic attraction generated between the coil 12 and the iron core 11, the armature 15 rotates relative to the yoke 14, and the moving part of the armature 15 151 moves in the direction of the iron core 11, that is, moves to the right; at the same time, the movement drives the driving part 152 to rotate, the driving part 152 rotates downward, and compresses the second spring 2141 to each moving contact group 22 and each static contact. Group 32 has just contacted and closed. This time, the moving part 151 and the iron core 11 are still in a disconnected state and have not yet closed;

The second change state: as the magnetic attraction continues to attract the moving part 151 to move in the direction of the iron core 11, so that the moving part 151 completes the overtravel distance, because the moving part 151 continues to move in the direction of the iron core 11, it will drive the drive The part 152 continues to rotate, so the driving part 152 continues to drive the sliding frame 211 to further compress the second spring 2142, and at the same time compress the first spring 2141, until the moving part 151 and the armature 15 complete closing, so that the second spring 2142 and The first springs 2141 jointly provide pressure to press to closure between each moving contact group 22 and each stationary contact group 32 .

Understandably, please refer to Figures 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 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 the side facing the push card 213, for guiding the first spring 2141 when the sliding frame 211 compresses the first spring 2141, so that by setting the first guide structure 2111, used to guide the first spring 2141 when it is compressed, so that the first spring 2141 can be compressed along the up and down direction, to avoid shaking during the compression process and affecting each moving contact group 22 and each static contact. The closing effect of group 32.

Specifically, the first guide structure 2111 in this embodiment is a guide post, which is provided on the side of the sliding frame 211 facing the push card 213. In the initial state, the second spring 2142 surrounds the first guide structure 2111, and the first The guide structure 2111 and the guide pillar have a preset interval. With the continuous driving force of the magnetic circuit system 10, the sliding frame 211 gradually moves downward to compress the second spring 2142, and the first guide structure 2111 extends into the first spring. 2141, and the sliding frame 211 compresses the first spring 2141.

In addition, in order to ensure that the card 213 driven by the driving force of the magnetic circuit system 10 can drive each movable contact group 22 and each static contact group 32 to close smoothly, the connecting component 21 includes a plurality of elastic structures 214, and a plurality of elastic structures 214. The elastic structure 214 is separately arranged between the push card 213 and the sliding frame 211, so that driven by the magnetic force of the magnetic circuit system 10, the force exerted by the armature 15 on the sliding frame 211 is evenly distributed to both ends of the sliding frame 211. , thereby being able to drive the push card 213 to drive each movable contact group 22 and each static contact group 32 to be smoothly closed.

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. The position where the magnetic circuit system 10 and the connecting component 21 resist is located in the middle of the two elastic structures 214, so that Driven by the magnetic force of the magnetic circuit system 10, the force exerted by the armature 15 on the sliding frame 211 is evenly distributed to both ends of the sliding frame 211, thereby driving the push card 213 to drive each moving contact group 22 and each static The contact group 32 is closed smoothly. In other embodiments, other numbers of elastic structures 214 can be provided as needed. For example, when there are three elastic structures 214 , the three elastic structures 214 are evenly arranged, and there is exactly one elastic structure 214 located between the magnetic circuit system 10 and the connecting component 21 . below the position; when four elastic structures 214 are arranged, the four elastic structures 214 are arranged evenly, and the position where the magnetic circuit system 10 and the connecting component 21 resist is located at the middle position of the four elastic structures 214 along the x direction, and so on. The elastic structure 214 and the magnetic circuit system 10 are set in positions that resist the connection mechanism to ensure that the force exerted by the armature 15 on the sliding frame 211 is evenly distributed to both ends of the sliding frame 211 so as to be able to drive the push card 213 Each moving contact group 22 and each static contact group 32 are closed smoothly.

Specifically, please refer to FIGS. 10 and 11 . Each movable contact group 22 in this embodiment includes a movable point block 221 and two movable contacts 222 located at both ends of the movable point block 221 . The push card 213 is connected vertically in the z direction. Each static contact group 32 includes two separately arranged static contacts 321. One movable contact 222 can be closed in one-to-one correspondence with one static contact 321, so that each static contact group 32 can be closed. The method of arranging two movable contacts 222 in the movable contact group 22 can shorten the contact gap, that is, the contact gap in this embodiment is between the two movable contacts 222 on the movable contact block 221 and the static contact 321 When driving the movable contact 222 and the stationary contact 321 to close, the electromagnetic attraction force that the magnetic circuit system 10 needs to provide will be smaller, that is, by setting two movable contacts 222 and stationary contacts 321 In this way, the distance between the movable contact 222 and the static contact 321 is shortened, the electromagnetic attraction value is reduced, and the structure of the entire relay 100 is simplified, making the structure more compact. In other embodiments, each movable contact group 22 and each static contact group 32 may include only one movable contact 222 and one static contact 321 respectively as needed.

Among them, in order to ensure the smooth transmission of magnetic force, the two moving contacts 222 at both ends of the moving point block 221 are located on 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 both ends of the moving point block 221 are provided on both sides of the width direction of the push card 213, thereby ensuring that the push is driven by the driving force of the magnetic circuit system 10. Stable transmission of force to each movable contact 222.

Specifically, this embodiment includes four moving contact groups 22 and four static contact groups 32, that is, four fixed terminal groups 33 are included at the same time. One fixed contact group 32 is provided with a pair of fixed terminal groups 33, and one fixed terminal group 33. The fixed terminal set 33 includes a first fixed terminal 331 and a second fixed terminal 332 respectively. The fixed terminal set 33 is used to electrically connect with the load. The fixed terminal set 33 is electrically connected and disconnected by electrically connecting the pair of fixed terminal sets 33 to the load. Switch to switch between the power supply state and the non-power supply state of the load. Since this embodiment includes four fixed terminal groups 33, the relay 100 can be connected to the loads of 4 systems at most, and can switch the loads of 4 systems. Powered state and non-powered state.

In addition, since the motion module 20 needs to move in the Y direction, in order to ensure that the motion module 20 moves smoothly in the Y direction, the relay 100 also includes a second guide structure 60. The second guide structure 60 is connected to the stationary module 30 and relative to The motion module 20 is slidingly connected to guide the motion module 20 when it moves in the y direction, that is, the second guide structure 60 extends along the Y direction, so that by providing the second guide structure 60 , the motion module 20 moves relative to the stationary module 30 During the process of approaching or moving away, the motion module 20 is restricted from linear motion in the Y direction, ensuring stability during movement.

Specifically, the second guide structure 60 in this embodiment is a guide pillar, and the moving point block 221 is made of metal material. In order to avoid the collision and friction between the motion module 20 and the second guide structure 60 during the movement of the motion module 20 to cause debris. The second guide structure 60 in this embodiment is also made of metal material. The second guide structure 60 is slidingly connected with the moving point block 221, thereby ensuring the relative movement between the second guide structure 60 and the moving point block 221. , the collision and friction between the two generate debris.

Please refer to Figure 12. In one embodiment of the present invention, in order to facilitate monitoring of the connection status between the moving module 20 and the stationary module 30, the relay 100 also includes a normally closed auxiliary contact structure 70. The normally closed auxiliary contact structure 70 is provided on the mounting bracket 31 and is used to cooperate with the connecting component 21, so that when the connecting component 21 drives the moving contact group 22 and the static contact group 32 to close, the connecting component 21 drives the normally closed auxiliary contact structure 70. The auxiliary movable contact 72 and the auxiliary stationary contact 74 are disconnected, so that by setting the auxiliary contact structure 70, the auxiliary movable contact 72 and the auxiliary stationary contact 74 in the normally closed auxiliary contact structure 70 are connected. The on-off state is used to transmit the on-off state between the static contact group 32 and the movable contact group 22, so as to facilitate monitoring of the conduction status of the static contact group 32 and the movable contact group 22 during 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 static contact 74. The elastic frame 71 and the support frame 73 are connected to the mounting frame 31, and the auxiliary movable contact 72 is provided. On the side of the elastic frame 71 facing the mounting frame 31, the auxiliary static contact 74 is provided on the side of the supporting frame 73 facing away from the mounting frame 31. Under the push of the connecting component 21 to the elastic frame 71, the auxiliary movable contact 72 and the auxiliary The static contact 74 can change from the closed state to the open state, so that through the cooperation of the elastic frame 71 and the connecting component 21, when the connecting component 21 drives the moving contact group 22 to move toward the static contact group 32, the connecting component 21 drives the elasticity. The frame 71 undergoes elastic deformation to drive the auxiliary movable contact 72 and the auxiliary static contact 7 from the closed state to the open state, so that the conduction status of the static contact group 32 and the movable contact group 22 can be determined at this time.

Specifically, the elastic frame 71 in this embodiment includes a first connecting part 711, a second connecting part 712 and an elastic deformation part 713 connected in sequence. The first connecting part 711 is connected to the mounting frame 31 and extends in the y direction. One end The mounting bracket 31 is passed through and can be exposed relative to the casing 50 to communicate with an external load through one end of the first connecting part 711, and the other end of the first connecting part 711 is connected to one end of the second connecting part 712. There is a gap between the two. The included angle is 90 degrees, and the second connecting part 712 extends in the x direction. One end of the elastic deformation part 713 is connected to the other end of the second connecting part 712, extends in the z direction, and is sandwiched between the second connecting part 712 and the second connecting part 712. The angle is 90 degrees, and the auxiliary movable contact 72 is provided on the side of the elastic deformation portion 713 facing the mounting bracket 31. When the motion module 20 is in the initial state (that is, the movable contact group 22 and the static contact group 32 are disconnected state), the second connecting part 712 is substantially parallel to the mounting frame 31, that is, the elastic deformation part 713 is in a substantially natural state. At this time, the auxiliary movable contact 72 and the auxiliary static contact 74 are in a closed state; when the connecting part 21 drives the contacts When the group 22 and the static contact group 32 are closed, the connecting member 21 exerts downward pressure on the elastic deformation part 713 to drive the elastic deformation part 713 to elastically deform downward, driving the auxiliary movable contact 72 and the auxiliary static contact 74 The phase is disconnected, and at this time, the moving contact group 22 and the stationary contact group 32 also change to a closed state.

Among them, the support frame 73 in this embodiment includes a third connection part 731 and a fourth connection part 732. The third connection part 731 is connected to the installation frame 31 and extends in the y direction. One end of the support frame 73 passes through the installation frame 31 and can face each other. The housing 50 is exposed to communicate with an external load through one end of the third connection part 731, and the other end of the third connection part 731 is connected to one end of the fourth connection part 732. The angle between the two is 90 degrees, and the third connection part 731 is connected to an external load. The four connecting portions 732 extend in the x direction, and the auxiliary static contact 74 is provided on a side of the fourth connecting portion 732 facing away from the mounting bracket 31 , so that the auxiliary movable contact 72 and the auxiliary static contact 74 that are oppositely arranged can be in a closed or closed state. disconnected state.

Specifically, please refer to FIG. 10 . In this embodiment, the movement of the card 213 is pushed to drive the deformation of the elastic deformation part 713 . Specifically, the push card 213 includes a main body 2131 and a protrusion 2132 provided at the end of the main body 2131. The protrusion 2132 is provided at the end of the main body 2131 extending along the x direction, so that when the push card 213 moves downward, The protrusion 2132 drives the elastic deformation portion 713 to elastically deform, thereby driving the disconnection between the auxiliary movable contact 72 and the auxiliary stationary contact 74 .

Please refer to Figure 13. In one embodiment of the present invention, in order to ensure the stability of the moving contact group 22 and the static contact 321 when they are closed and avoid the influence of arcs between adjacent contact groups, the relay 100 also includes The insulating member 80 is connected to the mounting bracket 31 and is used to separate each two adjacent static contact groups 32, and is used to separate each adjacent two adjacent static contact groups 32 when the static contact group 32 and the moving contact group 22 are closed. The two contact groups are separated into independent closed states, that is, when a movable contact group 22 and a stationary contact 321 are closed, through the separation of the insulating member 80, a movable contact 222 and a stationary contact are closed. The point 321 phase can not be affected by the closed arc of an adjacent moving contact point 222 and a static contact point 321 phase, forming an insulating barrier, greatly enhancing the electrical capability, and ensuring that the moving contact group 22 and the static contact point Closure stability of group 32.

Specifically, the insulating member 80 includes a connecting body 81 and a plurality of separated insulating structures 82 provided on the connecting body 81. The connecting body 81 is connected to the mounting frame 31. The multiple insulating structures 82 are arranged along the x direction, and each adjacent An insulating structure 82 is provided between the two static contact groups 32, so that the connecting body 81 and the mounting bracket 31 are connected, so that the insulating member 80 is installed on the mounting bracket 31, and the contact groups are connected through the insulating structure 82. Separate them in pairs to prevent the contact groups from being affected by arcs when they are closed.

Among them, the insulation structure 82 in this embodiment includes two separated baffles 821. The two baffles 821 are arranged side by side along the z direction. A baffle 821 is provided between each two static contacts 321, so that through the baffle 821 achieves the effect of retaining walls.

Please refer to Figure 14. In one embodiment of the present invention, the first elastic return member 40 is a spring. Since the push card 213 and the mounting bracket 31 are made of plastic materials, in order to prevent the first elastic return member 40 from being separated from the push card. 213. Burrs are generated when the mounting brackets 31 are relative to each other. The two ends of the first elastic restoring part 40 resist the push card 213 and the mounting bracket 31 respectively. The two free ends 41 of the first elastic restoring part 40 both move towards the spring. By bending the two free ends 41 of an elastic return member toward the center of the spring, the rear end of the spring is placed in an internal part that cannot contact the plastic parts, thereby preventing burrs at the rear end of the spring. Scratching the plastic push card 213 and the plastic mounting bracket 31 produces debris.

The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for those of ordinary skill in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

The relay is characterized by including:

A motion module includes a connecting component and a plurality of movable contact groups provided on the connecting component, and the plurality of movable contact groups are spaced apart along the x-direction;

A stationary module includes a mounting frame and a plurality of static contact groups provided on the mounting frame. The plurality of static contact groups are spaced apart along the x-direction, and one of the static contact groups and one of the moving contacts One-to-one correspondence between point groups;

A magnetic circuit system is used to resist the middle part of the connecting mechanism, and is used to provide driving force to the connecting mechanism to drive a plurality of the movable contact groups to move in the y direction, so that one of the movable contact groups The group and one of the static contact groups are closed in one-to-one correspondence;

The first elastic return member has two ends respectively in contact with the movement module and the stationary module, so as to apply elastic force to the movement module when the moving contact group and the stationary contact group are disconnected.
The relay according to claim 1, wherein the connecting component includes a sliding frame, a connecting frame, a push card and at least one elastic structure, the push card extends along the x direction, and a plurality of the movable contacts The assembly is separated from the push card, the two ends of the elastic structure are respectively in contact with the push card and the sliding frame, and the middle part of the sliding frame resists the armature in the magnetic circuit system, so The connecting frame is connected to the push card and is used for sliding the sliding frame under the push of the magnetic circuit system.
The relay of claim 2, wherein the elastic structure includes a first spring and a second spring surrounding the first spring, and both ends of the second spring are respectively in contact with the Push card and the sliding frame, one end of the first spring is connected to the pushing card, and the other end is a free end. Driven by the magnetic circuit system, the sliding frame sequentially compresses the second spring and the sliding frame. the first spring.
The relay according to claim 3, wherein a first guide structure is provided on the side of the sliding frame facing the push card, for when the sliding frame compresses the first spring, For the first spring to guide.
The relay according to claim 3, wherein the connecting component includes a plurality of elastic structures, and a plurality of the elastic structures are separately arranged between the push card and the sliding frame.
The relay according to claim 5, wherein the connecting component includes two elastic structures, and the position where the magnetic circuit system and the sliding frame resist is located in the middle of the two elastic structures.
The relay according to claim 2, wherein each moving contact group includes a moving point block and two moving contacts located at both ends of the moving point block, and the moving point blocks are vertically connected along the z direction. In the push card, each of the static contact groups includes two separately arranged static contacts, and one of the movable contacts is used to close in one-to-one correspondence with one of the static contacts.
The relay according to claim 7, wherein the two movable contacts at both ends of the movable point block are located on opposite sides of the push card along the z direction.
The relay according to claim 1, characterized in that the relay further includes a second guide structure, the second guide structure is connected to the stationary module and can slide relative to the moving module for providing The motion module guides when moving in the y direction.
The relay according to claim 1, wherein the first elastic return member is a spring, and two ends of the first elastic return member resist the connecting component and the mounting frame respectively, and the Both free ends of the first elastic return member are bent toward the center of the first elastic return member.
The relay according to claim 1, further comprising a normally closed auxiliary contact structure, the normally closed auxiliary contact structure is provided on the mounting frame and is used to cooperate with the connecting component to connect the When the connecting component drives the movable contact group and the static contact group to close, the connecting component drives the auxiliary movable contact and the auxiliary static contact in the normally closed auxiliary contact structure to disconnect.
The relay according to claim 11, wherein the normally closed auxiliary contact structure includes an elastic frame, an auxiliary movable contact, a support frame and an auxiliary static contact, and the elastic frame and the support frame are connected to the In the mounting frame, the auxiliary movable contact is located on the side of the elastic frame facing the mounting frame, and the auxiliary static contact is located on the side of the supporting frame facing away from the mounting frame. When the connecting component pushes the elastic frame, the auxiliary movable contact and the auxiliary static contact can change from the closed state to the open state.
The relay according to claim 1, further comprising an insulating member connected to the mounting frame for separating each two adjacent static contact groups.
The relay according to claim 13, wherein the insulating member includes a connecting body and a plurality of separated insulating structures provided on the connecting body, and the plurality of insulating structures are arranged along the x direction, and the The connecting body is connected to the mounting frame, and one insulation structure is provided between each two adjacent static contact groups.