Electromagnetic relay and contact portion thereof

Abstract

The application relates to a contact part of an electromagnetic relay, comprising a static spring assembly, a dynamic spring assembly and an elastic reset member. The static spring assembly comprises a first static spring sheet and a second static spring sheet, the first static spring sheet being provided with a first static contact point, and the second static spring sheet being provided with a second static contact point. The dynamic spring assembly comprises a first rigid conductor and a second rigid conductor which are flexibly and conductively connected, the first rigid conductor being provided with a first dynamic contact point, and the second rigid conductor being provided with a second dynamic contact point. The elastic reset member is connected with the first rigid conductor and the second rigid conductor, and is used for driving the first rigid conductor and the second rigid conductor to reset. Since the dynamic spring assembly comprises the first rigid conductor and the second rigid conductor, the first rigid conductor and the second rigid conductor have good conductivity, so that the first rigid conductor and the second rigid conductor can carry current, the current carrying capacity of the electromagnetic relay can be improved, and meanwhile, the contact point pressure is prevented from being affected.

Description

Technical Field

[0001] This application relates to the field of electromagnetic relay technology, and in particular to an electromagnetic relay and its contact portion. Background Technology

[0002] In photovoltaic inverters, to ensure the entire unit meets safety regulations, a configuration of two relays connected in series is required. The two relays are installed independently, meaning each relay has its own independent electromagnetic coil and independent contacts. During operation, contact lead 1 of one relay needs to be soldered to the PCB board, and contact lead 2 of the other relay also needs to be soldered to the PCB board. Contact lead 1 of one relay and contact lead 2 of the other relay are connected via the PCB.

[0003] Typically, the current-carrying capacity of the moving spring portion of a relay is achieved through a flexible connection, while the contact pressure and restoring force of the contact parts are provided by the moving spring. As the current increases, the cross-sectional area of ​​the flexible connection needs to increase to provide better current-carrying capacity. However, if the cross-sectional area of ​​the flexible connection increases, the force generated during the deformation process of the flexible connection will also increase, which will affect the contact pressure. Utility Model Content

[0004] Therefore, it is necessary to provide an electromagnetic relay and its contact parts to improve current carrying capacity while avoiding the contact pressure of the contacts being affected.

[0005] In a first aspect, this application provides a contact portion of an electromagnetic relay, comprising:

[0006] A stationary spring assembly, comprising a first stationary spring sheet and a second stationary spring sheet, wherein the first stationary spring sheet is provided with a first stationary contact and the second stationary spring sheet is provided with a second stationary contact;

[0007] A movable spring assembly, comprising a first rigid conductor and a second rigid conductor arranged along a first direction, the first rigid conductor and the second rigid conductor being flexibly and electrically connected, the first rigid conductor having a first movable contact, and the second rigid conductor having a second movable contact, the first rigid conductor being movable relative to a first stationary spring to cause the first movable contact to contact or separate from the first stationary contact, and the second rigid conductor being movable relative to a second stationary spring to cause the second movable contact to contact or separate from the second stationary contact; and

[0008] An elastic reset member is connected to the first rigid conductor and the second rigid conductor. The elastic reset member is used to drive the first rigid conductor and the second rigid conductor to move so that the first rigid conductor and the second rigid conductor are reset.

[0009] The contact portion of the aforementioned electromagnetic relay includes a first rigid conductor and a second rigid conductor. The first and second rigid conductors have good conductivity, enabling them to carry current. This improves the current-carrying capacity of the electromagnetic relay and ensures that it can be used in high-current environments.

[0010] In one embodiment, the first rigid conductor and the second rigid conductor are separately disposed; the elastic reset member covers the side of the first rigid conductor and the second rigid conductor away from the static spring assembly, the first end of the elastic reset member is electrically connected to the first moving contact, and the second end of the elastic reset member is electrically connected to the second moving contact, so that the elastic reset member is connected in parallel with the first rigid conductor and the second rigid conductor.

[0011] In one embodiment, a first compression spring portion is formed at the first end of the elastic reset member, which is used to cooperate with the pushing portion to move the first rigid conductor; a second compression spring portion is formed at the second end of the elastic reset member, which is used to cooperate with the pushing portion to move the second rigid conductor.

[0012] In one embodiment, at least two first rigid conductors are provided, and the at least two first rigid conductors are arranged at intervals along a second direction, the first direction intersecting the second direction; the first end of the elastic reset member is bifurcated to form at least two first connecting arms, the at least two first connecting arms are arranged one-to-one with the at least two first rigid conductors, the at least two first connecting arms are electrically connected one-to-one with the at least two first moving contacts, and the first compression spring is disposed between two adjacent first connecting arms.

[0013] In one embodiment, at least two second rigid conductors are provided, and the at least two second rigid conductors are arranged at intervals along a second direction, the first direction intersecting the second direction; the second end of the elastic reset member is bifurcated to form at least two second connecting arms, the at least two second connecting arms are arranged in a one-to-one correspondence with the at least two second rigid conductors, the at least two second connecting arms are electrically connected in a one-to-one correspondence with the at least two second moving contacts, and the second compression spring is disposed between two adjacent second connecting arms.

[0014] In one embodiment, the first rigid conductor and the second rigid conductor are separately disposed; the moving spring assembly further includes a soft conductive element, which is electrically connected to the first rigid conductor and the second rigid conductor.

[0015] In one embodiment, one end of the flexible conductive element is electrically connected to the end of the first rigid conductor near the second rigid conductor, and the other end of the flexible conductive element is electrically connected to the end of the second rigid conductor near the first rigid conductor.

[0016] In one embodiment, the flexible conductive element is arched, and the flexible conductive element arches in a direction away from the first rigid conductor and the second rigid conductor.

[0017] In one embodiment, the elastic reset member is disposed on the side of the first rigid conductor and the second rigid conductor facing the stationary spring assembly, and the soft conductive member is disposed on the side of the first rigid conductor and the second rigid conductor away from the stationary spring assembly.

[0018] In one embodiment, the elastic reset member includes a connecting portion, a first elastic arm, and a second elastic arm. The first elastic arm and the second elastic arm are respectively disposed on opposite sides of the connecting portion and are both connected to the connecting portion. The first elastic arm is slidably connected to the first rigid conductor, and the second elastic arm is slidably connected to the second rigid conductor. In the direction from the connecting portion away from the second elastic arm, the first elastic arm is inclined towards the first rigid conductor. In the direction from the connecting portion away from the first elastic arm, the second elastic arm is inclined towards the second rigid conductor.

[0019] In one embodiment, the elastic reset member is disposed on the side of the first rigid conductor and the second rigid conductor away from the stationary spring assembly, and the soft conductive member is disposed on the side of the first rigid conductor and the second rigid conductor facing the stationary spring assembly.

[0020] In one embodiment, one end of the elastic reset member is fixedly connected to the first rigid conductor, the other end of the elastic reset member is fixedly connected to the second rigid conductor, and the middle part of the elastic reset member arches in a direction away from the first rigid conductor and the second rigid conductor.

[0021] In one embodiment, the contact portion further includes a first compression spring, which is disposed on the side of the first rigid conductor away from the stationary spring assembly and connected to the end of the first rigid conductor away from the second rigid conductor. The first compression spring is used to cooperate with the pushing portion to move the first rigid conductor.

[0022] In one embodiment, at least two first rigid conductors are provided, and the at least two first rigid conductors are spaced apart along a second direction, the first direction intersecting the second direction; the first compression spring includes a first pressing arm and at least two first compression spring arms, the at least two first compression spring arms are spaced apart along the second direction, the at least two first compression spring arms are connected to at least two first rigid conductors in a one-to-one correspondence, the first pressing arm is connected to the at least two first compression spring arms, and the first pressing arm is used to cooperate with the pushing part to make the first rigid conductor move.

[0023] In one embodiment, the contact portion further includes a second compression spring, which is disposed on the side of the second rigid conductor away from the stationary spring assembly and connected to the end of the second rigid conductor away from the first rigid conductor. The second compression spring is used to cooperate with the pushing portion to move the second rigid conductor.

[0024] In one embodiment, at least two second rigid conductors are provided, and the at least two second rigid conductors are spaced apart along a second direction, the first direction intersecting the second direction; the second compression spring includes a second pressing arm and at least two second compression spring arms, the at least two second compression spring arms are spaced apart along the second direction, the at least two second compression spring arms are connected to at least two second rigid conductors in a one-to-one correspondence, the second pressing arm is connected to the at least two second compression spring arms, and the second pressing arm is used to cooperate with the pushing part to make the second rigid conductor move.

[0025] In one embodiment, the contact portion further includes a bracket disposed between the first stationary spring and the second stationary spring, wherein both the first rigid conductor and the second rigid conductor are movably connected to the bracket.

[0026] In one embodiment, the end of the first rigid conductor near the second rigid conductor is rotatably connected to the bracket, and the first movable contact is located at the end of the first rigid conductor away from the second rigid conductor; the end of the second rigid conductor near the first rigid conductor is rotatably connected to the bracket, and the second movable contact is located at the end of the second rigid conductor away from the first rigid conductor.

[0027] In one embodiment, at least two first stationary contacts and at least two second stationary contacts are provided, with the at least two first stationary contacts arranged at intervals along a second direction and the at least two second stationary contacts arranged at intervals along the second direction; at least two first rigid conductors are provided, with the at least two first rigid conductors arranged at intervals along the second direction, and the first moving contacts on the at least two first rigid conductors are correspondingly opposite to the at least two first stationary contacts; at least two second rigid conductors are provided, with the at least two second rigid conductors arranged at intervals along the second direction, and the second moving contacts on the at least two second rigid conductors are correspondingly opposite to the at least two second stationary contacts.

[0028] Secondly, this application also provides an electromagnetic relay, comprising:

[0029] Base;

[0030] An electromagnetic component, wherein the electromagnetic component is disposed on the base;

[0031] The pushing part is disposed on the base;

[0032] In any of the above-mentioned contact portions, the contact portion is disposed on the base, and under the action of the electromagnetic portion, the pushing portion moves to push the moving spring assembly relative to the stationary spring assembly.

[0033] In the aforementioned electromagnetic relay, when energized, the magnetic circuit generates a magnetic field. Under the influence of this magnetic field, a pushing component moves, which in turn moves the first rigid conductor, causing the first moving contact to contact the first stationary contact. Simultaneously, the pushing component also moves the second rigid conductor, causing the second moving contact to contact the second stationary contact. During this process, the elastic reset member deforms. When the electromagnetic relay is de-energized, the pushing component removes the force acting on the first and second rigid conductors, and the elastic reset member returns to its original deformation, causing the first and second rigid conductors to reset, separating the first moving contact from the first stationary contact, and the second moving contact from the second stationary contact. Since the moving spring assembly includes the first and second rigid conductors, which possess good conductivity, they can carry current. This improves the current-carrying capacity of the electromagnetic relay, ensuring its application in high-current environments. Attached Figure Description

[0034] Figure 1 This is a front view of the electromagnetic relay according to the first embodiment of this application.

[0035] Figure 2 for Figure 1The diagram shows the structure of the contact and actuation parts of the electromagnetic relay.

[0036] Figure 3 for Figure 2 The diagram shows an exploded view of the contact and actuation parts of the electromagnetic relay.

[0037] Figure 4 This is a front view of the electromagnetic relay according to the second embodiment of this application.

[0038] Figure 5 for Figure 4 The diagram shows the structure of the contact and actuation parts of the electromagnetic relay.

[0039] Figure 6 for Figure 5 The diagram shows an exploded view of the contact portion of the electromagnetic relay.

[0040] Figure 7 This is a front view of the electromagnetic relay according to the third embodiment of this application.

[0041] Figure 8 for Figure 7 The diagram shows the structure of the contact and actuation parts of the electromagnetic relay.

[0042] Figure 9 for Figure 8 The diagram shows an exploded view of the contact portion of the electromagnetic relay.

[0043] Figure 10 This is a schematic diagram of the structure of the moving spring assembly, the first compression spring, and the second compression spring of the electromagnetic relay according to the second and third embodiments of this application.

[0044] Explanation of icon numbers:

[0045] 10. Base; 20. Contact part; 21. Bracket; 22. Stationary spring assembly; 221. First stationary spring; 222. Second stationary spring; 223. First stationary contact; 224. Second stationary contact; 23. Moving spring assembly; 231. First rigid conductor; 232. Second rigid conductor; 233. First moving contact; 234. Second moving contact; 235. Flexible conductive element; 24. Elastic reset element; 241. First compression spring part; 242. 243. First connecting arm; 244. Second connecting arm; 245. First elastic arm; 246. Second elastic arm; 247. Connecting part; 25. First rotating shaft; 26. Second rotating shaft; 27. First compression spring; 271. First pressing arm; 272. First compression spring arm; 28. Second compression spring; 281. Second pressing arm; 282. Second compression spring arm; 30. Pushing part; 31. First pushing member; 32. Second pushing member. Detailed Implementation

[0046] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0047] See Figure 1 , Figure 4 and Figure 7 An embodiment of this application provides an electromagnetic relay including a base 10, a contact portion 20, a pushing portion 30, and a magnetic circuit portion. The contact portion 20, the pushing portion 30, and the magnetic circuit portion are all disposed on the base 10.

[0048] See Figure 1 The contact portion 20 includes a stationary spring assembly 22 and a movable spring assembly 23. The stationary spring assembly 22 is disposed on the base 10, and the movable spring assembly 23 can move toward or away from the stationary spring assembly 22.

[0049] See Figure 2 The stationary spring assembly 22 includes a first stationary spring 221 and a second stationary spring 222. The first stationary spring 221 and the second stationary spring 222 are arranged at intervals along a first direction and are both disposed on the base 10. Herein, X represents the first direction. The first stationary spring 221 is provided with a first stationary contact 223, and the second stationary spring 222 is provided with a second stationary contact 224.

[0050] See Figure 2 The movable spring assembly 23 includes a first rigid conductor 231 and a second rigid conductor 232, which are arranged along a first direction and are flexibly and electrically connected. The first rigid conductor 231 has a first movable contact 233, which is opposite to a first stationary contact 223. The second rigid conductor 232 has a second movable contact 234, which is opposite to a second stationary contact 224.

[0051] When the electromagnetic relay is energized, the magnetic circuit generates a magnetic field. Under the action of the magnetic field, the pushing part 30 moves, which in turn moves the first rigid conductor 231, causing the first moving contact 233 to contact the first stationary contact 223. At the same time, the pushing part 30 can also push the second rigid conductor 232 to move, causing the second moving contact 234 to contact the second stationary contact 224.

[0052] Since the moving spring assembly 23 includes a first rigid conductor 231 and a second rigid conductor 232, the first rigid conductor 231 and the second rigid conductor 232 have good conductivity, which enables the first rigid conductor 231 and the second rigid conductor 232 to carry current. This is beneficial to improving the current carrying capacity of the electromagnetic relay and ensuring that the electromagnetic relay can be used in high current environments.

[0053] In one embodiment, see Figure 2 The system has at least two first stationary contacts 223 and at least two second stationary contacts 224. The at least two first stationary contacts 223 are arranged at intervals along the second direction, and the at least two second stationary contacts 224 are arranged at intervals along the second direction. The first direction intersects the second direction. Optionally, the first direction is perpendicular to the second direction, and the second direction is represented by Y.

[0054] Further, see Figure 2 and Figure 10 At least two first rigid conductors 231 are provided, arranged at intervals along a second direction. The first moving contacts 233 on each of the at least two first rigid conductors 231 are correspondingly arranged opposite to at least two first stationary contacts 223. At least two second rigid conductors 232 are provided, arranged at intervals along a second direction. The second moving contacts 234 on each of the at least two second rigid conductors 232 are correspondingly arranged opposite to at least two second stationary contacts 224. When the electromagnetic relay is in operation, at least two first moving contacts 233 can make contact with at least two first stationary contacts 223, and at least two second moving contacts 234 can make contact with at least two second stationary contacts 224, forming at least two parallel circuits. This reduces the circuit contact resistance, effectively reduces the temperature rise of the contacts, and thus reduces the contact loss of the electromagnetic relay.

[0055] Since the first rigid conductor 231 and the second rigid conductor 232 are almost impossible to deform, therefore, in this embodiment, refer to Figure 1 and Figure 2The contact portion 20 also includes a bracket 21, which is disposed on the base 10 and located between the first stationary spring 221 and the second stationary spring 222. Both the first rigid conductor 231 and the second rigid conductor 232 are movably connected to the bracket 21. When the electromagnetic relay is energized, the magnetic circuit generates a magnetic field. Under the action of the magnetic field, the pushing portion 30 moves, thereby pushing the first rigid conductor 231 to move relative to the bracket 21, so that the first moving contact 233 contacts the first stationary contact 223. Simultaneously, the pushing portion 30 can also push the second rigid conductor 232 to move relative to the bracket 21, so that the second moving contact 234 contacts the second stationary contact 224. With this configuration, the first rigid conductor 231 and the second rigid conductor 232 can move freely within a certain range, thereby enabling the first moving contact 233 to quickly contact the first stationary contact 223 and the second moving contact 234 to quickly contact the second stationary contact 224. At the same time, it can also ensure that the first moving contact 233 and the first stationary contact 223, as well as the second moving contact 234 and the second stationary contact 224, maintain stable contact, thus achieving low contact resistance.

[0056] In one embodiment, see Figure 2 Both the first rigid conductor 231 and the second rigid conductor 232 are rotatably connected to the bracket 21.

[0057] Further, see Figure 2 The first rigid conductor 231 is rotatably connected to the bracket 21 at one end near the second rigid conductor 232. A first moving contact 233 is located at the end of the first rigid conductor 231 opposite to the second rigid conductor 232. The second rigid conductor 232 is rotatably connected to the bracket 21 at one end near the first rigid conductor 231. A second moving contact 234 is located at the end of the second rigid conductor 232 opposite to the first rigid conductor 231. This arrangement makes the contact portion 20 compact, allowing for complex contact actions within a limited space. Furthermore, the location of the first moving contact 233 at the end of the first rigid conductor 231 opposite to the second rigid conductor 232, and the location of the second moving contact 234 at the end of the second rigid conductor 232 opposite to the first rigid conductor 231, reduces arc interference generated during the operation of the moving and stationary contacts.

[0058] Specifically, in this embodiment, see [reference] Figure 2 and Figure 3 The bracket 21 has a U-shaped structure and is positioned between the first rigid conductor 231 and the second rigid conductor 232. The end of the first rigid conductor 231 closest to the second rigid conductor 232 is rotatably connected to the opposite sides of the U-shaped bracket 21 via a first rotating shaft 25, and the end of the second rigid conductor 232 closest to the first rigid conductor 231 is rotatably connected to the opposite sides of the U-shaped bracket 21 via a second rotating shaft 26.

[0059] See Figure 2 , Figure 5 and Figure 8 The contact portion 20 also includes an elastic reset member 24. Optionally, the elastic reset member 24 is a restoring spring. The elastic reset member 24 is connected to the first rigid conductor 231 and the second rigid conductor 232, and is used to drive the first rigid conductor 231 and the second rigid conductor 232 to move, so that the first rigid conductor 231 and the second rigid conductor 232 are reset. When the electromagnetic relay is energized, the elastic reset member 24 deforms during the movement of the first rigid conductor 231 and the second rigid conductor 232 relative to the bracket 21. When the electromagnetic relay is de-energized, the pushing portion 30 removes the thrust acting on the first rigid conductor 231 and the second rigid conductor 232, and the elastic reset member 24 restores its deformation, so as to drive the first rigid conductor 231 and the second rigid conductor 232 to reset, so that the first moving contact 233 separates from the first stationary contact 223, and the second moving contact 234 separates from the second stationary contact 224.

[0060] In one embodiment, see Figure 2 and Figure 3 The first rigid conductor 231 and the second rigid conductor 232 are separately disposed. It is understood that the first rigid conductor 231 and the second rigid conductor 232 are not in direct contact. The elastic reset member 24 covers the side of the first rigid conductor 231 and the second rigid conductor 232 opposite to the static spring assembly 22, and is connected to both the first rigid conductor 231 and the second rigid conductor 232. Thus, the elastic reset member 24 achieves a flexible connection between the first rigid conductor 231 and the second rigid conductor 232.

[0061] In addition, see Figure 2 The first end of the elastic reset member 24 is electrically connected to the first moving contact 233, and the second end of the elastic reset member 24 is electrically connected to the second moving contact 234. When the first moving contact 233 is closed with the first stationary contact 223 and the second moving contact 234 is closed with the second stationary contact 224, the circuit is connected. In the connected state, the load current forms a conductive loop through the first stationary spring 221, the first stationary contact 223, the first moving contact 233, the elastic reset member 24, the second moving contact 234, the second stationary contact 224, and the second stationary spring 222. In this way, the elastic reset member 24 can also carry current, which helps to improve the current carrying capacity of the electromagnetic relay, enabling the electromagnetic relay to be used in high-current environments.

[0062] In one embodiment, see Figure 2 and Figure 3The first end of the elastic reset member 24 has a first compression spring portion 241, which cooperates with the first push member 31 of the push portion 30 to rotate the end of the first rigid conductor 231 away from the second rigid conductor 232 toward the first stationary spring 221. The second end of the elastic reset member 24 has a second compression spring portion 242, which cooperates with the second push member 32 of the push portion 30 to rotate the end of the second rigid conductor 232 away from the first rigid conductor 231 toward the second stationary spring 222. When the electromagnetic relay is energized, the magnetic circuit generates a magnetic field. The first push member 31 moves under the action of the magnetic field, thereby pushing the first compression spring portion 241, causing the end of the first rigid conductor 231 away from the second rigid conductor 232 to rotate toward the first stationary spring 221 until the first moving contact 233 contacts the first stationary contact 223. At the same time, the second pusher 32 moves under the action of the magnetic field, thereby pushing the second compression spring 242, causing the end of the second rigid conductor 232 away from the first rigid conductor 231 to rotate toward the direction close to the second stationary spring 222, until the second moving contact 234 contacts the second stationary contact 224.

[0063] Since there are at least two first rigid conductors 231, the first end of the elastic reset member 24 is bifurcated to form at least two first connecting arms 243. Each of the at least two first connecting arms 243 corresponds to one of the at least two first rigid conductors 231, and each of the at least two first moving contacts 233 is electrically connected to one of the at least two first moving contacts 233. A first compression spring 241 is located between two adjacent first connecting arms 243 and is connected to the at least two first connecting arms 243. Thus, a first pusher 31 can simultaneously and flexibly push at least two first rigid conductors 231 arranged side-by-side through the first compression spring 241, ensuring the consistency and reliability of contact between at least two sets of first moving contacts 233 and first stationary contacts 223. This also reduces the number of first pushers 31, saving costs.

[0064] Since at least two second rigid conductors 232 are provided, the second end of the elastic reset member 24 is bifurcated to form at least two second connecting arms 244. Each of the at least two second connecting arms 244 corresponds to one of the at least two second rigid conductors 232, and each of the at least two second moving contacts 234 is electrically connected to one of the at least two second moving contacts 234. A second spring portion 242 is located between two adjacent second connecting arms 244 and is connected to the at least two second connecting arms 244. Thus, one second pusher 32 can simultaneously and flexibly push at least two parallel second rigid conductors 232 through the second spring portion 242, ensuring the consistency and reliability of contact between at least two sets of second moving contacts 234 and second stationary contacts 224. This also reduces the number of second pushers 32, saving costs.

[0065] In another embodiment, see [reference] Figure 5 and Figure 8 The first rigid conductor 231 and the second rigid conductor 232 are separately disposed. The moving spring assembly 23 also includes a flexible conductive element 235, which is disposed on the side of the first rigid conductor 231 and the second rigid conductor 232 facing the stationary spring assembly 22, or on the side of the first rigid conductor 231 and the second rigid conductor 232 away from the stationary spring assembly 22. The flexible conductive element 235 is flexibly and electrically connected to the first rigid conductor 231 and the second rigid conductor 232. In this way, the flexible conductive element 235 can play a bridging role, which can further improve the current carrying capacity of the electromagnetic relay without changing the volume. In addition, the flexible conductive element 235 can also play a buffering and transition role, increasing the stability and reliability of the overall structure.

[0066] Optionally, the flexible conductive element 235 is at least one of a flexible connecting wire, a flexible braided wire, and a multilayer copper foil flexible connecting strip.

[0067] Further, see Figure 4 , Figure 5 , Figure 7 and Figure 8 One end of the flexible conductive element 235 is electrically connected to the end of the first rigid conductor 231 near the second rigid conductor 232, and the other end of the flexible conductive element 235 is electrically connected to the end of the second rigid conductor 232 near the first rigid conductor 231. Optionally, the connection method between the flexible conductive element 235 and the first rigid conductor 231 and the second rigid conductor 232 includes, but is not limited to, welding. In this way, when the flexible conductive element 235 is connected near the first rotating shaft 25 and the second rotating shaft 26, the deformation of the flexible conductive element 235 is small.

[0068] Further, see Figure 5 and Figure 8 The flexible conductive element 235 is arched, curving away from the first rigid conductor 231 and the second rigid conductor 232. This arched shape provides the flexible conductive element 235 with good elastic deformation capability. When the first rigid conductor 231 and the second rigid conductor 232 rotate, the flexible conductive element 235 can buffer external forces through elastic deformation, reducing the impact on the first rigid conductor 231 and the second rigid conductor 232, which helps improve the structural stability of the dynamic spring assembly 23.

[0069] Of course, in other embodiments, the first rigid conductor 231 and the second rigid conductor 232 are integral conductive sheets. Specifically, the moving spring assembly 23 also includes a flexible conductor, which is disposed between the first rigid conductor 231 and the second rigid conductor 232. The flexible conductor is flexibly and electrically connected to the first rigid conductor 231 and the second rigid conductor 232. The thickness of the flexible conductor is less than the thickness of the first rigid conductor 231 and the second rigid conductor 232, so that the flexible conductor can undergo flexible deformation, ensuring that the first rigid conductor 231 and the second rigid conductor 232 can rotate relative to the support 21.

[0070] In one embodiment, see Figure 4 and Figure 5 The elastic reset member 24 is located on the side of the first rigid conductor 231 and the second rigid conductor 232 facing the stationary spring assembly 22, while the flexible conductive member 235 is located on the side of the first rigid conductor 231 and the second rigid conductor 232 away from the stationary spring assembly 22. It is understood that... Figure 4 In the middle, the elastic reset member 24 is located below the first rigid conductor 231 and the second rigid conductor 232. The elastic reset member 24 can not only provide a reaction force, but also support the first rigid conductor 231 and the second rigid conductor 232. The soft conductor 235 is located above the first rigid conductor 231 and the second rigid conductor 232, which can avoid mutual interference between the elastic reset member 24 and the soft conductor 235.

[0071] Further, see Figure 4 and Figure 5 The elastic reset member 24 is connected to the bracket 21. One end of the elastic reset member 24 is slidably connected to the first rigid conductor 231, and the other end of the elastic reset member 24 is slidably connected to the second rigid conductor 232. For details, please refer to... Figure 5 and Figure 6 The elastic reset member 24 includes a connecting part 247, a first elastic arm 245 and a second elastic arm 246. The connecting part 247 is connected to the bracket 21. The first elastic arm 245 and the second elastic arm 246 are respectively disposed on opposite sides of the connecting part 247 and are both connected to the connecting part 247. The first elastic arm 245 is slidably connected to the first rigid conductor 231 and the second elastic arm 246 is slidably connected to the second rigid conductor 232.

[0072] Under the action of the first pushing member 31, the end of the first rigid conductor 231 away from the second rigid conductor 232 rotates towards the first stationary spring 221, and the first elastic arm 245 undergoes elastic deformation under the action of external force. Under the action of the second pushing member 32, the end of the second rigid conductor 232 away from the first rigid conductor 231 rotates towards the second stationary spring 222, and the second elastic arm 246 undergoes elastic deformation under the action of external force. After the pushing force of the first pushing member 31 on the first rigid conductor 231 is removed, the first elastic arm 245 restores its deformation, thereby driving the end of the first rigid conductor 231 away from the second rigid conductor 232 to rotate away from the first stationary spring 221, so that the first rigid conductor 231 returns to its original position. After the second pusher 32 removes the thrust on the second rigid conductor 232, the second elastic arm 246 restores its deformation, thereby causing the end of the second rigid conductor 232 away from the first rigid conductor 231 to rotate away from the second stationary spring 222, so that the second rigid conductor 232 is reset.

[0073] Specifically, see Figure 4 and Figure 5 In the direction away from the second elastic arm 246 from the self-connection portion 247, the first elastic arm 245 is inclined towards the first rigid conductor 231. With this configuration, the first elastic arm 245, during its return to its original state, causes the first rigid conductor 231 to reset, while simultaneously providing a certain supporting force to the first rigid conductor 231. In the direction away from the first elastic arm 245 from the self-connection portion 247, the second elastic arm 246 is inclined towards the second rigid conductor 232. With this configuration, the second elastic arm 246, during its return to its original state, causes the second rigid conductor 232 to reset, while simultaneously providing a certain supporting force to the second rigid conductor 232.

[0074] Of course, in other embodiments, see [reference] Figure 7 and Figure 8 The elastic reset member 24 is located on the side of the first rigid conductor 231 and the second rigid conductor 232 away from the stationary spring assembly 22, and the flexible conductive member 235 is located on the side of the first rigid conductor 231 and the second rigid conductor 232 facing the stationary spring assembly 22. It is understood that... Figure 7 In the middle, the elastic reset member 24 is disposed above the first rigid conductor 231 and the second rigid conductor 232, and the elastic reset member 24 can lift the first rigid conductor 231 and the second rigid conductor 232; the soft conductor 235 is disposed below the first rigid conductor 231 and the second rigid conductor 232, which can avoid the elastic reset member 24 and the soft conductor 235 from interfering with each other.

[0075] Further, see Figure 7 , Figure 8 and Figure 9 One end of the elastic reset member 24 is fixedly connected to the first rigid conductor 231, and the other end of the elastic reset member 24 is fixedly connected to the second rigid conductor 232. The middle part of the elastic reset member 24 arches away from the first rigid conductor 231 and the second rigid conductor 232. Under the push of the first push member 31, the end of the first rigid conductor 231 away from the second rigid conductor 232 rotates towards the first stationary spring 221; under the push of the second push member 32, the end of the second rigid conductor 232 away from the first rigid conductor 231 rotates towards the second stationary spring 222, and the elastic reset member 24 undergoes elastic deformation under the action of external force. The pushing force of the first pushing member 31 on the first rigid conductor 231 and the pushing force of the second pushing member 32 on the second rigid conductor 232 are removed. The elastic reset member 24 restores its deformation, thereby pulling the end of the first rigid conductor 231 away from the second rigid conductor 232 to rotate away from the first stationary spring 221. At the same time, the end of the second rigid conductor 232 away from the first rigid conductor 231 is pulled to rotate away from the second stationary spring 222, thereby resetting the first rigid conductor 231 and the second rigid conductor 232.

[0076] In one embodiment, see Figure 4 , Figure 5 , Figure 7 and Figure 8 The contact portion 20 also includes a first compression spring 27. It is understood that the first compression spring 27 and the elastic reset member 24 are two independent structural components. The first compression spring 27 is located on the side of the first rigid conductor 231 facing away from the stationary spring assembly 22 and is connected to the end of the first rigid conductor 231 facing away from the second rigid conductor 232. The first compression spring 27 cooperates with the first pusher 31 to rotate the end of the first rigid conductor 231 facing away from the second rigid conductor 232 towards the first stationary spring 221. When the coil of the magnetic circuit is energized, the magnetic circuit generates a magnetic field. The first pusher 31 moves under the action of the magnetic field, thereby pushing the first compression spring 27, causing the end of the first rigid conductor 231 facing away from the second rigid conductor 232 to rotate towards the first stationary spring 221 until the first moving contact 233 contacts the first stationary contact 223. By providing a first compression spring 27, the first compression spring 27 is used to provide the pressure required for the first moving contact 233 to contact the first stationary contact 223.

[0077] Optionally, the first compression spring 27 is Z-shaped. By changing the structure of the first compression spring 27, the pressure between the first moving contact 233 and the first stationary contact 223 can be increased, thereby reducing the contact resistance of the contact portion 20.

[0078] Since at least two first rigid conductors 231 are provided, therefore, see Figure 6 , Figure 9 and Figure 10 The first spring element 27 branches to form a first pressing arm 271 and at least two first spring arms 272. The at least two first spring arms 272 are spaced apart along a second direction, each corresponding to at least two first rigid conductors 231 and connected to at least two first moving contacts 233. The first pressing arm 271 is connected to the end of each of the at least two first spring arms 272 opposite to the first moving contact 233, and is used to correspond to the first pushing element 31. Thus, a single first pushing element 31 can simultaneously and flexibly push at least two parallel first rigid conductors 231 through the branched first spring element 27, ensuring consistency and reliability of contact between at least two sets of parallel first moving contacts 233 and first stationary contacts 223, while also reducing the number of first pushing elements 31 and saving costs.

[0079] In one embodiment, see Figure 4 , Figure 5 , Figure 7 and Figure 8 The contact portion 20 also includes a second spring member 28. It is understood that the second spring member 28 and the elastic reset member 24 are two independent structural components. The second spring member 28 is located on the side of the second rigid conductor 232 facing away from the stationary spring assembly 22 and is connected to the end of the second rigid conductor 232 facing away from the first rigid conductor 231. The second spring member 28 is used to cooperate with the second pusher 32 to rotate the end of the second rigid conductor 232 facing away from the first rigid conductor 231 towards the direction closer to the second stationary spring 222. When the coil of the magnetic circuit portion is energized, the magnetic circuit portion generates a magnetic field. The second pusher 32 moves under the action of the magnetic field, thereby pushing the second spring member 28, causing the end of the second rigid conductor 232 facing away from the first rigid conductor 231 to rotate towards the direction closer to the second stationary spring 222 until the second moving contact 234 contacts the second stationary contact 224. By providing a second compression spring 28, the second compression spring 28 is used to provide the pressure required for the second moving contact 234 to contact the second stationary contact 224.

[0080] Optionally, the second compression spring 28 is Z-shaped. By changing the structure of the second compression spring 28, the pressure between the second moving contact 234 and the second stationary contact 224 can be increased, thereby reducing the contact resistance of the contact portion 20.

[0081] Since at least two second rigid conductors 232 are provided, therefore, see Figure 6 , Figure 9 and Figure 10The second spring member 28 is forked to form a second pressing arm 281 and at least two second spring arms 282. The at least two second spring arms 282 are spaced apart along the second direction. Each of the at least two second spring arms 282 corresponds to one of the at least two second rigid conductors 232 and is connected to one of the at least two second moving contacts 234. The second pressing arm 281 is connected to the end of each of the at least two second spring arms 282 opposite to the second moving contact 234, and is used to correspond to the second pushing member 32. Thus, a single second pushing member 32 can simultaneously and flexibly push the second rigid conductors 232 arranged side-by-side in the second direction via the forked second spring member 28, ensuring the consistency and reliability of contact between multiple sets of parallel second moving contacts 234 and second stationary contacts 224, while also reducing the number of second pushing members 32 and saving costs.

[0082] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0083] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0084] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0085] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0086] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0087] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A contact portion of an electromagnetic relay, characterized in that, include: A stationary spring assembly, comprising a first stationary spring sheet and a second stationary spring sheet, wherein the first stationary spring sheet is provided with a first stationary contact and the second stationary spring sheet is provided with a second stationary contact; A movable spring assembly includes a first rigid conductor and a second rigid conductor arranged along a first direction. The first rigid conductor and the second rigid conductor are flexibly and electrically connected. The first rigid conductor is provided with a first movable contact, and the second rigid conductor is provided with a second movable contact. The first rigid conductor can move relative to the first stationary spring to make the first movable contact contact or separate from the first stationary contact. The second rigid conductor can move relative to the second stationary spring to make the second movable contact contact or separate from the second stationary contact. as well as An elastic reset member is connected to the first rigid conductor and the second rigid conductor. The elastic reset member is used to drive the first rigid conductor and the second rigid conductor to move so that the first rigid conductor and the second rigid conductor are reset.

2. The contact portion of the electromagnetic relay according to claim 1, characterized in that, The first rigid conductor and the second rigid conductor are separately disposed; The elastic reset member covers the side of the first rigid conductor and the second rigid conductor away from the static spring assembly. The first end of the elastic reset member is electrically connected to the first moving contact, and the second end of the elastic reset member is electrically connected to the second moving contact, so that the elastic reset member is connected in parallel with the first rigid conductor and the second rigid conductor.

3. The contact portion of the electromagnetic relay according to claim 2, characterized in that, The first end of the elastic reset member is formed with a first compression spring portion, which is used to cooperate with the pushing portion to make the first rigid conductor move. The second end of the elastic reset member has a second compression spring portion, which is used to cooperate with the pushing portion to make the second rigid conductor move.

4. The contact portion of the electromagnetic relay according to claim 3, characterized in that, The first rigid conductor is provided in at least two, and the at least two first rigid conductors are arranged at intervals along the second direction, the first direction intersecting the second direction; The first end of the elastic reset member is bifurcated to form at least two first connecting arms. The at least two first connecting arms are arranged in a one-to-one correspondence with at least two first rigid conductors. The at least two first connecting arms are electrically connected in a one-to-one correspondence with at least two first moving contacts. The first compression spring is disposed between two adjacent first connecting arms.

5. The contact portion of the electromagnetic relay according to claim 3, characterized in that, At least two second rigid conductors are provided, and the at least two second rigid conductors are arranged at intervals along a second direction, wherein the first direction intersects the second direction; The second end of the elastic reset member is bifurcated to form at least two second connecting arms. The at least two second connecting arms are arranged in a one-to-one correspondence with at least two second rigid conductors. The at least two second connecting arms are electrically connected in a one-to-one correspondence with at least two second moving contacts. The second compression spring is disposed between two adjacent second connecting arms.

6. The contact portion of the electromagnetic relay according to claim 1, characterized in that, The first rigid conductor and the second rigid conductor are separately disposed; The moving spring assembly also includes a flexible conductive element, which is electrically connected to the first rigid conductor and the second rigid conductor.

7. The contact portion of the electromagnetic relay according to claim 6, characterized in that, One end of the flexible conductive element is electrically connected to the end of the first rigid conductor near the second rigid conductor, and the other end of the flexible conductive element is electrically connected to the end of the second rigid conductor near the first rigid conductor.

8. The contact portion of the electromagnetic relay according to claim 6, characterized in that, The flexible conductive element is arched, and it arches in a direction away from the first rigid conductor and the second rigid conductor.

9. The contact portion of the electromagnetic relay according to claim 6, characterized in that, The elastic reset member is located on the side of the first rigid conductor and the second rigid conductor facing the static spring assembly, and the soft conductive member is located on the side of the first rigid conductor and the second rigid conductor away from the static spring assembly.

10. The contact portion of the electromagnetic relay according to claim 9, characterized in that, The elastic reset member includes a connecting part, a first elastic arm, and a second elastic arm. The first elastic arm and the second elastic arm are respectively disposed on opposite sides of the connecting part and are both connected to the connecting part. The first elastic arm is slidably connected to the first rigid conductor, and the second elastic arm is slidably connected to the second rigid conductor. In the direction away from the connecting portion from the second elastic arm, the first elastic arm is inclined toward the first rigid conductor; in the direction away from the connecting portion from the first elastic arm, the second elastic arm is inclined toward the second rigid conductor.

11. The contact portion of the electromagnetic relay according to claim 6, characterized in that, The elastic reset member is located on the side of the first rigid conductor and the second rigid conductor away from the static spring assembly, and the soft conductive member is located on the side of the first rigid conductor and the second rigid conductor facing the static spring assembly.

12. The contact portion of the electromagnetic relay according to claim 11, characterized in that, One end of the elastic reset member is fixedly connected to the first rigid conductor, and the other end of the elastic reset member is fixedly connected to the second rigid conductor. The middle part of the elastic reset member arches in a direction away from the first rigid conductor and the second rigid conductor.

13. The contact portion of the electromagnetic relay according to any one of claims 6 to 12, characterized in that, The contact portion further includes a first compression spring, which is disposed on the side of the first rigid conductor away from the stationary spring assembly and connected to the end of the first rigid conductor away from the second rigid conductor. The first compression spring is used to cooperate with the pushing portion to move the first rigid conductor.

14. The contact portion of the electromagnetic relay according to claim 13, characterized in that, The first rigid conductor is provided in at least two, and the at least two first rigid conductors are arranged at intervals along the second direction, the first direction intersecting the second direction; The first spring member includes a first pressing arm and at least two first spring arms. The at least two first spring arms are arranged at intervals along the second direction. The at least two first spring arms are connected to at least two first rigid conductors in a one-to-one correspondence. The first pressing arm is connected to the at least two first spring arms. The first pressing arm is used to cooperate with the pushing part to make the first rigid conductor move.

15. The contact portion of the electromagnetic relay according to any one of claims 6 to 12, characterized in that, The contact portion further includes a second compression spring, which is disposed on the side of the second rigid conductor away from the stationary spring assembly and connected to the end of the second rigid conductor away from the first rigid conductor. The second compression spring is used to cooperate with the pushing portion to move the second rigid conductor.

16. The contact portion of the electromagnetic relay according to claim 15, characterized in that, At least two second rigid conductors are provided, and the at least two second rigid conductors are arranged at intervals along a second direction, wherein the first direction intersects the second direction; The second spring member includes a second pressing arm and at least two second spring arms. The at least two second spring arms are arranged at intervals along the second direction. The at least two second spring arms are connected to at least two second rigid conductors in a one-to-one correspondence. The second pressing arm is connected to the at least two second spring arms. The second pressing arm is used to cooperate with the pushing part to make the second rigid conductor move.

17. The contact portion of the electromagnetic relay according to any one of claims 1 to 12, characterized in that, The contact portion also includes a bracket, which is disposed between the first stationary spring and the second stationary spring. Both the first rigid conductor and the second rigid conductor are movably connected to the bracket.

18. The contact portion of the electromagnetic relay according to claim 17, characterized in that, The end of the first rigid conductor near the second rigid conductor is rotatably connected to the bracket, and the first moving contact is located at the end of the first rigid conductor away from the second rigid conductor; The end of the second rigid conductor near the first rigid conductor is rotatably connected to the bracket, and the second moving contact is located at the end of the second rigid conductor away from the first rigid conductor.

19. The contact portion of the electromagnetic relay according to any one of claims 1 to 12, characterized in that, Both the first stationary contact and the second stationary contact are provided with at least two, with at least two of the first stationary contacts arranged at intervals along the second direction, and at least two of the second stationary contacts arranged at intervals along the second direction; The first rigid conductor is provided in at least two, and the at least two first rigid conductors are arranged at intervals along the second direction. The first moving contact on the at least two first rigid conductors is arranged in a one-to-one correspondence with the at least two first stationary contacts. The second rigid conductor is provided in at least two, and the at least two second rigid conductors are arranged at intervals along the second direction. The second moving contacts on the at least two second rigid conductors are arranged in a one-to-one correspondence with the at least two second stationary contacts.

20. An electromagnetic relay, characterized in that, include: Base; An electromagnetic component, wherein the electromagnetic component is disposed on the base; The pushing part is disposed on the base; The contact portion as described in any one of claims 1 to 19, wherein the contact portion is disposed on the base, and the pushing portion moves under the action of the electromagnetic portion to push the moving spring assembly to move relative to the stationary spring assembly.

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