A relay with anti-shock function

Abstract

This invention discloses a shock-resistant relay, relating to the field of relay technology. It includes a base body with an electromagnetic system assembly mounted on its top. In use, the shock-resistant pad isolates the electromagnetic system assembly and the shock-absorbing plate from the base body, absorbing some of the vibration energy. Vibration energy is dissipated through the viscous friction of a liquid magnetorheological fluid. The negative Poisson's ratio honeycomb panel has a negative Poisson's ratio honeycomb structure, with highly elastic silicone rubber filling the honeycomb cells to disperse the impact load transmitted by the base body. Through the tensile effect, it achieves three-dimensional vibration energy absorption. A piezoelectric ceramic sheet converts mechanical vibration into electrical energy to power the excitation coil, achieving "self-harvesting of vibration energy." After the excitation coil is energized, the magnetorheological fluid transforms into a near-solid-state damping layer, improving the shock resistance in complex vibration environments. Dynamic shock absorption is achieved through the switching between liquid and solid states of the magnetorheological fluid.

Description

Technical Field

[0001] This invention relates to the field of relay technology, specifically to a relay with shock-resistant function. Background Technology

[0002] A relay is an automatic switching element that utilizes electromagnetic induction, photoelectric effect, or other physical principles to control large currents with small currents and high voltages with low voltages. It can also be used for signal switching and transmission. Its core feature is the electrical isolation between the input and output circuits, providing safe isolation and amplification control between weak signals and high-voltage circuits. It is widely used in industrial control, smart homes, automotive electronics, and power systems.

[0003] In existing technology, when a relay is in use, the mounting bracket of its internal electromagnetic system is generally directly fixed to the base at the bottom. In actual application scenarios, the operation of the equipment is accompanied by continuous vibration or impact, and the vibration or impact force is directly transmitted to the mounting bracket through the base, and then acts on the electromagnetic system. This can easily cause the iron core and armature in the electromagnetic system to not be firmly attracted, causing the normally open contacts to bounce or momentarily disconnect, and the normally closed contacts to unexpectedly close, thereby triggering the control circuit to erroneously and affecting the normal operation of the relay.

[0004] Therefore, we propose a relay with anti-vibration function to solve the problems mentioned in the background art. Summary of the Invention

[0005] The purpose of this invention is to provide a relay with anti-vibration function to solve the problem mentioned in the background art that when the relay is used, it is subject to vibration or impact generated by the operation of the equipment, which can easily cause the iron core and armature to not be firmly attracted, resulting in the normally open contact bouncing and momentarily disconnecting, and the normally closed contact being accidentally connected, thereby causing the control circuit to be falsely triggered and affecting the normal operation of the relay.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a relay with anti-vibration function, comprising a base body, an electromagnetic system component disposed on the top of the base body, an anti-vibration component for shock protection of the electromagnetic system component disposed inside the base body, and a protective component disposed inside the base body; The anti-vibration component includes a vibration damping plate. The top of the vibration damping plate has an installation groove, and the interior of the vibration damping plate has an embedded groove. A negative Poisson's ratio honeycomb panel is fixedly installed inside the installation groove. A piezoelectric ceramic sheet is placed on top of the negative Poisson's ratio honeycomb panel. A sealed cavity is fixedly installed inside the embedded groove. The sealed cavity contains a magnetorheological fluid, and an excitation coil is placed on the outer surface of the sealed cavity. The negative Poisson's ratio honeycomb panel acts as a rigid support layer, dispersing the impact load transmitted by the base body and utilizing the tensile effect to achieve three-dimensional omnidirectional vibration energy absorption. When the magnetorheological fluid is in a liquid state, it dissipates vibration energy through the viscous friction of liquid molecules. When solidified, it enhances the anti-vibration effect. The piezoelectric ceramic sheet supplies power to the excitation coil, enabling self-collection of vibration energy. The excitation coil switches the state of the magnetorheological fluid by energizing and de-energizing it, thereby achieving dynamic vibration damping.

[0007] Preferably, an anti-vibration pad is fixedly connected to the outer surface of the shock-absorbing plate. The anti-vibration pad serves as the first line of defense against earthquakes and absorbs vibration energy. An anti-vibration groove is provided at the top edge of the base body, and the outer surface of the anti-vibration pad is fixedly connected to the inner wall of the anti-vibration groove.

[0008] Preferably, the electromagnetic system component includes a fixing plate, a bracket body is fixedly installed at the top edge of the fixing plate, an iron core body is provided on one outer surface of the bracket body, a low carbon steel gasket is fixedly installed at one end of the iron core body, and an annular neodymium iron boron permanent magnet sheet is fixedly installed on the outer surface of the low carbon steel gasket. The surface of the annular neodymium iron boron permanent magnet sheet is coated with a nickel-based alloy coating by electroplating.

[0009] Preferably, a coil body is provided on the outer surface of the iron core body, a support frame is fixedly installed at the top of one side of the outer surface of the support body, an armature connecting rod is movably embedded inside the support frame, a return spring is fixedly connected at the top of one side of the outer surface of the armature connecting rod, an armature body is provided on the other side of the outer surface of the armature connecting rod, and one end of the return spring is fixedly connected to one side of the outer surface of the support body.

[0010] Preferably, two first contact brackets are provided on the other outer surface of the armature connecting rod, and moving contacts are fixedly connected to the edges of the outer surfaces on both sides of the two first contact brackets. Four second contact brackets are provided inside the base body, and stationary contacts are fixedly connected to one side of the outer surface of the four second contact brackets, wherein two of the moving contacts are in contact with two of the stationary contacts respectively.

[0011] Preferably, connecting posts are fixedly installed at the four corners of the top of the negative Poisson's ratio honeycomb panel, and connecting grooves are opened at the four corners of the bottom of the fixing plate. The outer surfaces of the four connecting posts are respectively movably embedded in the four connecting grooves, and the fixing plate and the four connecting posts are connected by bolts.

[0012] Preferably, the protective assembly includes two movable blocks, each with a protective pad fixedly installed on its top. A magnet is fixedly installed on one outer surface of each movable block, and a connecting spring is fixedly connected to the other outer surface of each movable block. Four support rods are movably embedded inside each movable block, and two fixing blocks are fixedly installed on the outer surfaces of the four support rods. An electromagnet is fixedly installed on one outer surface of each fixing block, and right-angle blocks are provided at the four corners of the outer surfaces of the two electromagnets. Anti-collision pads are fixedly connected to one outer surface of each of the eight right-angle blocks.

[0013] Preferably, a first protective plate is fixedly installed at the top of one side of the outer surface of each of the two movable blocks, and a second protective plate and a third protective plate are fixedly installed at the top of the other side of the outer surface of the two movable blocks, respectively, with the outer surface of the second protective plate being movably embedded inside the third protective plate.

[0014] Preferably, the base body has a protective groove inside, the top surface of the protective groove has a movable hole, the top surface of the inner walls on both sides of the protective groove has a sliding groove, the two ends of the four support rods are respectively fixedly installed on the front and rear surface walls inside the protective groove, the outer surfaces of the two moving blocks and the two fixed blocks are located inside the protective groove, and the outer surfaces of the two protective pads are movably embedded inside the movable hole.

[0015] Preferably, the eight right-angled blocks are divided into two groups, and the outer surfaces of the other side of the two groups of right-angled blocks are respectively fixedly installed on the outer surfaces of one side of the two fixed blocks. The outer surfaces of the two first protective plates are respectively movably embedded in the interior of the slide groove, and the outer surfaces of the second and third protective plates are in contact with the inner walls of the two sides of the movable hole.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. In use, the anti-vibration pad serves as the first line of defense in the anti-vibration path, isolating the electromagnetic system components and the anti-vibration plate from rigid contact with the base body and absorbing some vibration energy. Vibration energy is dissipated through the viscous friction of the liquid magnetorheological fluid. The negative Poisson's ratio honeycomb panel, with its negative Poisson's ratio honeycomb structure and highly elastic silicone rubber filling the honeycomb cells, disperses the impact load transmitted by the base body and achieves three-dimensional vibration energy absorption through the tensile effect. The piezoelectric ceramic sheet converts mechanical vibration into electrical energy to power the excitation coil, achieving "self-collection of vibration energy." After the excitation coil is energized, the magnetorheological fluid transforms into a near-solid-state damping layer, improving the anti-vibration effect in complex vibration environments. Dynamic vibration isolation is achieved through the liquid-solid switching of the magnetorheological fluid. Under the action of the anti-vibration components, a closed-loop anti-vibration system is formed, consisting of honeycomb panel energy absorption, magnetorheological fluid locking, and piezoelectric self-powered system. This reduces dependence on external power supply and prevents vibration from being directly transmitted to the electromagnetic system components, thus avoiding weak adhesion between the core and armature.

[0017] 2. In use, the electromagnetic field generated by the iron core body and the constant magnetic field of the annular NdFeB permanent magnet sheet are superimposed in the same direction. This adds a permanent magnet pre-tightening force to the electromagnetic attraction, forming a dual attraction mechanism of "permanent magnet pre-tightening + electromagnetic reinforcement," significantly improving the attraction strength and preventing separation between the armature body and the iron core body. The annular NdFeB permanent magnet sheet adopts a concentric ring design, with its inner diameter matching the iron core body and its outer diameter matching the armature body, which is beneficial for uniform magnetic field distribution. A low-carbon steel spacer is placed between the annular NdFeB permanent magnet sheet and the iron core body, which helps guide the magnetic field along the axial direction and strengthens the attraction force. The annular NdFeB permanent magnet sheet has a nickel-based alloy coating deposited through an electroplating process, which improves surface hardness and wear resistance, provides good corrosion resistance, and helps stabilize magnetic properties without negatively affecting the magnetic superposition effect.

[0018] 3. In use, when the electromagnet is energized, it generates the same magnetism as the magnetic block. The repulsive force pushes the two moving blocks to slide relative to each other, causing the two protective pads to slide away from the surfaces of the two stationary contacts on the right side. When the two electromagnets are de-energized, the rebound of the connecting spring pushes the two moving blocks to move in opposite directions, thereby causing the two protective pads to move relative to each other and back to the surface of the stationary contact on the right side, protecting them and preventing accidental shaking of the armature connecting rod in the electromagnetic system assembly, which could cause the right moving contact to accidentally contact the right stationary contact and affect the operation of the relay. Attached Figure Description

[0019] Figure 1 This is a front perspective view of a relay with anti-vibration function according to the present invention; Figure 2 This is a cross-sectional view of the base body of a relay with anti-vibration function according to the present invention; Figure 3 This is a schematic diagram showing the structure of an electromagnetic system component in a relay with anti-vibration function according to the present invention. Figure 4 This is a cross-sectional schematic diagram of the structure of the anti-vibration component in a relay with anti-vibration function according to the present invention; Figure 5 This is a cross-sectional view of the shock-absorbing plate in a relay with shock-resistant function according to the present invention. Figure 6 This is a cross-sectional schematic diagram of the protective groove in a relay with anti-vibration function according to the present invention; Figure 7 This is a schematic diagram showing the structure of the protective component in a relay with anti-vibration function according to the present invention; Figure 8 This is a schematic diagram of the right-angled block in a relay with anti-vibration function according to the present invention.

[0020] In the picture: 1. Base body; 2. Seismic resistant components; 201. Vibration damping plate; 202. Mounting groove; 203. Negative Poisson's ratio honeycomb panel; 204. Embedded groove; 205. Sealed cavity; 206. Excitation coil; 207. Seismic pad; 208. Connecting column; 209. Piezoelectric ceramic sheet; 210. Magnetorheological fluid; 3. Electromagnetic system components; 301. Fixing plate; 302. Support body; 303. Iron core body; 304. Coil body; 305. Low carbon steel gasket; 306. Annular neodymium iron boron permanent magnet sheet; 307. Support frame; 308. Armature connecting rod; 309. 310. Return spring; 311. First contact bracket; 312. Moving contact; 313. Armature body; 314. Connecting groove; 4. Protective assembly; 401. Moving block; 402. Protective pad; 403. Connecting spring; 404. Support rod; 405. Magnet block; 406. Fixing block; 407. Electromagnet; 408. Right-angle block; 409. Anti-collision pad; 410. First protective plate; 411. Second protective plate; 412. Third protective plate; 5. Second contact bracket; 6. Stationary contact; 7. Anti-vibration groove; 8. Protective groove; 9. Movable hole; 10. Slide groove. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figures 1-8As shown, the present invention provides a technical solution: a relay with anti-vibration function, including a base body 1, an electromagnetic system component 3 disposed on the top of the base body 1, an anti-vibration component 2 for anti-vibration of the electromagnetic system component 3 disposed inside the base body 1, and a protective component 4 disposed inside the base body 1; the anti-vibration component 2 includes a shock-absorbing plate 201, a mounting groove 202 formed on the top of the shock-absorbing plate 201, an embedded groove 204 formed inside the shock-absorbing plate 201, a negative Poisson's ratio honeycomb plate 203 fixedly installed inside the mounting groove 202, a piezoelectric ceramic sheet 209 disposed on the top of the negative Poisson's ratio honeycomb plate 203, and a fixed piezoelectric ceramic sheet 209 inside the embedded groove 204. A sealed cavity 205 is installed, with magnetorheological fluid 210 inside. An excitation coil 206 is installed on the outer surface of the sealed cavity 205. A negative Poisson's ratio honeycomb plate 203 serves as a rigid support layer, dispersing the impact load transmitted by the base body 1 and utilizing the tensile effect to achieve three-dimensional omnidirectional vibration energy absorption. When the magnetorheological fluid 210 is in a liquid state, vibration energy is dissipated through the viscous friction of liquid molecules. When solidified, the anti-vibration effect is enhanced. A piezoelectric ceramic sheet 209 supplies power to the excitation coil 206, achieving self-collection of vibration energy. The excitation coil 206 switches the state of the magnetorheological fluid 210 by turning it on and off, thereby achieving dynamic vibration damping. An anti-vibration pad 207 is fixedly connected to the outer surface of the anti-vibration plate 201. The anti-vibration pad 207 serves as the first line of defense against vibration, absorbing vibration energy. An anti-vibration groove 7 is opened at the top edge of the base body 1, and the outer surface of the anti-vibration pad 207 is fixedly connected to the inner wall of the anti-vibration groove 7. Connecting posts 208 are fixedly installed at the four corners of the top of the negative Poisson ratio honeycomb panel 203, and connecting grooves 313 are opened at the four corners of the bottom of the fixing plate 301. The outer surfaces of the four connecting posts 208 are respectively movably embedded in the four connecting grooves 313, and the fixing plate 301 and the four connecting posts 208 are connected by bolts.

[0023] In this embodiment, during use, the electromagnetic system component 3 is mounted on the anti-vibration component 2, and the connection between the electromagnetic system component 3 and the base body 1 is achieved through the anti-vibration component 2. When the equipment vibrates during operation, the anti-vibration pad 207 becomes the first line of defense in the anti-vibration path, isolating the electromagnetic system component 3 and the anti-vibration plate 201 from rigid contact with the base body 1 and absorbing part of the vibration energy. Then, the vibration impact is transmitted to the anti-vibration plate 201, where the vibration energy is dissipated by the viscous friction of the liquid magnetorheological fluid 210. At the same time, the negative Poisson's ratio honeycomb plate 203 serves as a rigid support layer, dispersing the impact load transmitted by the base body 1. The negative Poisson's ratio honeycomb plate 203 has a negative Poisson's ratio honeycomb structure, with highly elastic silicone rubber filling the honeycomb cells. The negative Poisson's ratio honeycomb plate 203 also has a tensile effect, and the negative Poisson's ratio structure will contract in the direction of force during vibration. Combined with the damping characteristics of the highly elastic silicone rubber, vibration energy absorption in three dimensions is achieved. When the negative Poisson's ratio honeycomb panel 203 deforms due to the tensile effect, this deformation is transmitted to the piezoelectric ceramic sheet 209. The piezoelectric ceramic sheet 209 converts the mechanical vibration into electrical energy, powering the excitation coil 206, thus achieving "self-harvesting of vibration energy" without the need for additional power supply. After the excitation coil 206 is energized, the magnetic field causes the magnetic particles in the magnetorheological fluid 210 to rapidly arrange into a continuous "particle chain," forming a three-dimensional network structure. The fluid instantly transforms into a high-stiffness "quasi-solid" damping layer, which can resist low-frequency, large-amplitude impacts and improve the seismic resistance in complex vibration environments. When the excitation coil 206 is de-energized, the magnetorheological fluid 210 returns to a liquid state. Through the cooperation of the excitation coil 206 and the piezoelectric ceramic sheet 209, the liquid and solid states of the magnetorheological fluid 210 are switched, achieving dynamic vibration damping. Under the action of the anti-vibration component 2, a closed-loop anti-vibration system is formed, consisting of energy absorption by the honeycomb panel, locking by the magnetorheological fluid 210, and self-powered by piezoelectricity. This reduces dependence on external power supply and prevents vibration from being directly transmitted to the electromagnetic system component 3, which could cause the iron core and armature to not stick together properly. This solves the problem that when the relay is in use, it is subject to vibration or impact generated by the operation of the equipment, which can easily lead to poor sticking between the iron core and armature, causing the normally open contacts to bounce or momentarily disconnect, and the normally closed contacts to unexpectedly close, thereby triggering the control circuit and affecting the normal operation of the relay.

[0024] Example 2: Figures 1-3As shown, an electromagnetic system component 3 is provided on the top of the base body 1, an anti-vibration component 2 for shock absorption of the electromagnetic system component 3 is provided inside the base body 1, and a protective component 4 is provided inside the base body 1. The electromagnetic system component 3 includes a fixing plate 301, a support body 302 is fixedly installed at the top edge of the fixing plate 301, an iron core body 303 is provided on one outer surface of the support body 302, a low carbon steel shim 305 is fixedly installed at one end of the iron core body 303, and an annular neodymium iron boron permanent magnet sheet 306 is fixedly installed on the outer surface of the low carbon steel shim 305. The surface of the annular neodymium iron boron permanent magnet sheet 306 is coated with a nickel-based alloy coating by electroplating. A coil body 304 is provided on the outer surface of the iron core body 303. A support frame 307 is fixedly installed at the top of one side of the outer surface of the support body 302. An armature connecting rod 308 is movably embedded inside the support frame 307. A return spring 309 is fixedly connected to the top of one side of the outer surface of the armature connecting rod 308. An armature body 312 is provided on the other side of the outer surface of the armature connecting rod 308. One end of the return spring 309 is fixedly connected to one side of the outer surface of the support body 302. Two first contact brackets 310 are provided on the other side of the outer surface of the armature connecting rod 308. Moving contacts 311 are fixedly connected to the edges of the outer surfaces on both sides of the two first contact brackets 310. Four second contact brackets 5 are provided inside the base body 1. Stationary contacts 6 are fixedly connected to one side of the outer surface of each of the four second contact brackets 5. Two moving contacts 311 are in contact with two of the stationary contacts 6 respectively.

[0025] In this embodiment, during use, a control current is supplied to the coil body 304, which generates a magnetic field. This magnetic field is concentrated through the iron core body 303 to form a strong electromagnetic attraction, attracting the armature body 312 towards the iron core body 303. The armature body 312 drives the armature connecting rod 308 to rotate on the shaft of the support frame 307, pulling the reset spring 309 to unfold. At the same time, it drives the first contact bracket 310 and the moving contact 311 to move, causing the normally closed contact to open (the moving contact 311 on the left side separates from the stationary contact 6 on the left side), and the normally open contact to close (the moving contact 311 on the right side contacts the stationary contact 6 on the right side), thereby connecting or disconnecting the corresponding load circuit and realizing the control of the load. When the control current in the coil body 304 disappears, the magnetic field dissipates, and the electromagnetic attraction disappears. At this time, the elastic force of the return spring 309 pulls the armature connecting rod 308 to move, and drives the armature body 312 back to the initial position. The moving contact 311 and the stationary contact 6 reset, the normally open contact opens, the normally closed contact closes, and the load circuit returns to its initial state. One end of the iron core body 303 is provided with a ring-shaped neodymium iron boron permanent magnet sheet 306. After the coil body 304 is energized, the electromagnetic field generated by the iron core body 303 and the constant magnetic field of the ring-shaped neodymium iron boron permanent magnet sheet 306 are superimposed in the same direction, adding permanent magnet preload to the electromagnetic attraction, forming a double attraction mechanism of "permanent magnet preload + electromagnetic reinforcement", which greatly improves the attraction strength and prevents the armature body 312 from separating from the iron core body 303. When the coil body 304 is de-energized, the permanent magnet force only offsets part of the elastic force of the return spring 309 and does not affect the reset. The annular NdFeB permanent magnet 306 adopts a concentric annular design, with its inner diameter matching the iron core body 303 and its outer diameter matching the armature body 312, which is beneficial for uniform magnetic field distribution. A low-carbon steel spacer 305 is placed between the annular NdFeB permanent magnet 306 and the iron core body 303, which helps guide the magnetic field to be transmitted axially and strengthens the attraction force. The annular NdFeB permanent magnet 306 has a nickel-based alloy coating deposited by electroplating, which can improve surface hardness and wear resistance, and has good corrosion resistance, which is beneficial for stabilizing magnetic properties and will not have a negative impact on the magnetic superposition effect.

[0026] Example 3: Figure 1 and Figures 6-8As shown, an electromagnetic system component 3 is provided on the top of the base body 1. An anti-vibration component 2 for shock absorption of the electromagnetic system component 3 is provided inside the base body 1. A protective component 4 is provided inside the base body 1. The protective component 4 includes two movable blocks 401. A protective pad 402 is fixedly installed on the top of each of the two movable blocks 401. A magnet block 405 is fixedly installed on one outer surface of each of the two movable blocks 401. A connecting spring 403 is fixedly connected to the other outer surface of each of the two movable blocks 401. Four support rods 404 are movably embedded inside the two movable blocks 401. Two fixing blocks 406 are fixedly installed on the outer surface of each of the four support rods 404. An electromagnet 407 is fixedly installed on one outer surface of each of the two fixing blocks 406. Right-angle blocks 408 are provided at the four corners of the outer surface of each of the two electromagnets 407. Anti-collision pads 409 are fixedly connected to one outer surface of each of the eight right-angle blocks 408. A first protective plate 410 is fixedly installed on the top of one side of the outer surface of each of the two movable blocks 401. A second protective plate 411 and a third protective plate 412 are fixedly installed on the top of the other side of the outer surface of each of the two movable blocks 401, respectively. The outer surface of the second protective plate 411 is movably embedded inside the third protective plate 412. A protective groove 8 is provided inside the base body 1. A movable hole 9 is provided on the top surface of the inner surface of the protective groove 8. Sliding grooves 10 are provided on the top surface of the inner walls on both sides of the protective groove 8. The two ends of the four support rods 404 are fixedly installed on the front and rear surface walls inside the protective groove 8, respectively. The outer surfaces of the two movable blocks 401 and the two fixed blocks 406 are located inside the protective groove 8. The outer surfaces of the two protective pads 402 are movably embedded inside the movable holes 9. The eight right-angled blocks 408 are divided into two groups. The outer surfaces of the other side of the two groups of right-angled blocks 408 are fixedly installed on the outer surfaces of the two fixed blocks 406. The outer surfaces of the two first protective plates 410 are movably embedded in the inside of the slide groove 10. The outer surfaces of the second protective plate 411 and the third protective plate 412 are in contact with the inner walls of the two sides of the movable hole 9.

[0027] In this embodiment, before the coil body 304 is energized, the two electromagnets 407 are energized first, followed by the coil body 304. The electromagnets 407 and the magnet blocks 405 are opposite each other. The magnetism generated by the energized electromagnets 407 is the same as that of the magnet blocks 405. The repulsive force pushes the two magnet blocks 405 to move relative to each other, thereby pushing the two moving blocks 401 to slide relative to each other on the outer surface of the support rod 404. At the same time, the connecting spring 403 is compressed and retracted. The relative movement of the two moving blocks 401 drives the two protective pads 402 to move relative to each other, sliding away from the surface of the two stationary contacts 6 on the right side, and driving the two first protective plates 410 to move relative to each other. The third protective plate 412 moves relative to each other on the outer surface of the second protective plate 411. At this time, the two protective pads 402 are located in the space between the two first contact supports 310, which does not affect the subsequent movement of the first contact supports 310. Next, the coil body 304 is energized, causing the normally closed contact to open and the normally open contact to close. When the coil body 304 is de-energized, the normally closed contact closes and the normally open contact opens. Then, the two electromagnets 407 are de-energized. Under the rebound of the connecting spring 403, the two moving blocks 401 are pushed to move in opposite directions, which in turn drives the two protective pads 402 to move relative to each other, and move again to the surface of the stationary contact 6 on the right side to protect it and prevent the armature connecting rod 308 in the electromagnetic system component 3 from accidentally shaking, which would cause the moving contact 311 on the right side to accidentally touch the stationary contact 6 on the right side and affect the operation of the relay.

[0028] The overall mechanism works as follows: When the electromagnet 407 is energized, it generates the same magnetism as the magnet block 405. The repulsive force pushes the two moving blocks 401 to slide relative to each other and compresses the connecting spring 403, causing the two protective pads 402 to slide away from the surfaces of the two stationary contacts 6 on the right side. Then, the coil body 304 is energized to generate a magnetic field. The magnetic field is concentrated through the iron core body 303 to form a strong electromagnetic attraction, which attracts the armature body 312 towards the iron core body 303. The armature body 312 drives the armature connecting rod 308 to rotate on the shaft of the support frame 307, pulling the return spring 309 to unfold. At the same time, it drives the first contact bracket 310 and the moving contact 311 to move, causing the normally closed contact to open (the moving contact 311 on the left side separates from the stationary contact 6 on the left side) and the normally open contact to close (the moving contact 311 on the right side contacts the stationary contact 6 on the right side), thereby connecting or disconnecting the corresponding load circuit and realizing the control of the load. When the control current in the coil body 304 disappears, the magnetic field dissipates, and the electromagnetic attraction disappears. At this time, the elastic force of the reset spring 309 pulls the armature connecting rod 308 to move, and drives the armature body 312 back to the initial position. The moving contact 311 and the stationary contact 6 are reset, the normally open contact is opened, the normally closed contact is closed, and the load circuit returns to the initial state. Then, the two electromagnets 407 are de-energized. Under the rebound of the connecting spring 403, the two moving blocks 401 are pushed to move in opposite directions, which in turn drives the two protective pads 402 to move relative to each other, and move back to the surface of the stationary contact 6 on the right side to protect it. When the relay is working, the anti-vibration pad 207 becomes the first line of defense in the anti-vibration path, isolating the electromagnetic system component 3 and the anti-vibration plate 201 from rigid contact with the base body 1 and absorbing part of the vibration energy. The vibration and impact are then transmitted to the shock absorber 201, where the vibration energy is dissipated through the viscous friction of the liquid magnetorheological fluid 210. Simultaneously, the negative Poisson's ratio honeycomb plate 203 acts as a rigid support layer, dispersing the impact load transmitted from the base body 1. The negative Poisson's ratio honeycomb plate 203 has a negative Poisson's ratio honeycomb structure, with highly elastic silicone rubber filling the honeycomb cells. Furthermore, the negative Poisson's ratio honeycomb plate 203 exhibits a tensile effect; during vibration, the negative Poisson's ratio structure contracts in the direction of the applied force. Combined with the damping characteristics of the highly elastic silicone rubber, this achieves three-dimensional absorption of vibration energy. When the negative Poisson's ratio honeycomb plate 203 deforms due to the tensile effect, this deformation is transmitted to the piezoelectric ceramic sheet 209. The piezoelectric ceramic sheet 209 converts the mechanical vibration into electrical energy, supplying power to the excitation coil 206. When the excitation coil 206 is energized, the magnetic field causes the magnetic particles in the magnetorheological fluid 210 to quickly arrange into a continuous "particle chain" and form a three-dimensional network structure. The fluid instantly transforms into a high-rigidity "quasi-solid" damping layer, which can resist low-frequency large-amplitude impacts and improve the seismic resistance in complex vibration environments. When the excitation coil 206 is de-energized, the magnetorheological fluid 210 returns to a liquid state. Through the cooperation of the excitation coil 206 and the piezoelectric ceramic sheet 209, the liquid and solid states of the magnetorheological fluid 210 are switched to achieve dynamic vibration damping.

[0029] Among them, the excitation coil 206, the piezoelectric ceramic sheet 209, the coil body 304 and the electromagnet 407 are all existing technologies, and their components and operating principles are all publicly available technologies, so they will not be explained in detail here.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A relay with anti-vibration function, comprising a base body (1), characterized in that: The base body (1) is provided with an electromagnetic system component (3) on its top, and an anti-vibration component (2) for the electromagnetic system component (3) is provided inside the base body (1). The base body (1) is also provided with a protective component (4). The seismic-resistant component (2) includes a shock-absorbing plate (201), with a mounting groove (202) on the top of the shock-absorbing plate (201) and an embedded groove (204) inside the shock-absorbing plate (201). A negative Poisson's ratio honeycomb panel (203) is fixedly installed inside the mounting groove (202), and a piezoelectric ceramic sheet (209) is provided on the top of the negative Poisson's ratio honeycomb panel (203). A sealed cavity (205) is fixedly installed inside the embedded groove (204), and a magnetorheological fluid (210) is provided inside the sealed cavity (205). An excitation coil (206) is provided on the outer surface. The negative Poisson's ratio honeycomb plate (203) serves as a rigid support layer to disperse the impact load transmitted by the base body (1) and to achieve three-dimensional omnidirectional vibration energy absorption by utilizing the tensile effect. When the magnetorheological fluid (210) is in a liquid state, it dissipates vibration energy through the viscous friction of liquid molecules. When it is solidified, it enhances the anti-vibration effect. The piezoelectric ceramic sheet (209) supplies power to the excitation coil (206) to achieve self-collection of vibration energy. The excitation coil (206) achieves state switching of the magnetorheological fluid (210) by turning on and off the power, thereby achieving dynamic anti-vibration.

2. The relay with anti-vibration function according to claim 1, characterized in that: The outer surface of the shock-absorbing plate (201) is fixedly connected to the shock-absorbing pad (207). The shock-absorbing pad (207) serves as the first line of defense against earthquakes and absorbs vibration energy. The edge of the top of the base body (1) is provided with a shock-absorbing groove (7). The outer surface of the shock-absorbing pad (207) is fixedly connected to the inner wall of the shock-absorbing groove (7).

3. The relay with anti-vibration function according to claim 2, characterized in that: The electromagnetic system component (3) includes a fixing plate (301), a bracket body (302) is fixedly installed at the top edge of the fixing plate (301), an iron core body (303) is provided on one outer surface of the bracket body (302), a low carbon steel gasket (305) is fixedly installed at one end of the iron core body (303), an annular neodymium iron boron permanent magnet sheet (306) is fixedly installed on the outer surface of the low carbon steel gasket (305), and a nickel-based alloy coating is deposited on the surface of the annular neodymium iron boron permanent magnet sheet (306) by electroplating.

4. The relay with anti-vibration function according to claim 3, characterized in that: The outer surface of the core body (303) is provided with a coil body (304). A support frame (307) is fixedly installed at the top of one side of the outer surface of the support body (302). An armature connecting rod (308) is movably embedded inside the support frame (307). A return spring (309) is fixedly connected at the top of one side of the outer surface of the armature connecting rod (308). An armature body (312) is provided on the other side of the outer surface of the armature connecting rod (308). One end of the return spring (309) is fixedly connected to one side of the outer surface of the support body (302).

5. The relay with anti-vibration function according to claim 4, characterized in that: Two first contact brackets (310) are provided on the outer surface of the other side of the armature connecting rod (308). Moving contacts (311) are fixedly connected to the edges of the outer surfaces on both sides of the two first contact brackets (310). Four second contact brackets (5) are provided inside the base body (1). Stationary contacts (6) are fixedly connected to the outer surface on one side of the four second contact brackets (5). Two of the moving contacts (311) are in contact with two of the stationary contacts (6) respectively.

6. The relay with anti-vibration function according to claim 5, characterized in that: Connecting posts (208) are fixedly installed at the four corners of the top of the negative Poisson's ratio honeycomb panel (203), and connecting grooves (313) are opened at the four corners of the bottom of the fixing plate (301). The outer surfaces of the four connecting posts (208) are respectively movably embedded in the four connecting grooves (313), and the fixing plate (301) and the four connecting posts (208) are connected by bolts.

7. The relay with anti-vibration function according to claim 6, characterized in that: The protective component (4) includes two movable blocks (401), each of which is fixedly equipped with a protective pad (402) on its top. Each of the two movable blocks (401) is fixedly equipped with a magnet block (405) on one side of its outer surface. Each of the two movable blocks (401) is fixedly connected with a connecting spring (403) on the other side of its outer surface. Each of the two movable blocks (401) has four support rods (404) movably embedded inside its interior. Each of the four support rods (404) has two fixing blocks (406) fixedly installed on its outer surface. Each of the two fixing blocks (406) has an electromagnet (407) fixedly installed on one side of its outer surface. Each of the two electromagnets (407) has a right-angle block (408) at one of its four corners. Each of the eight right-angle blocks (408) has an anti-collision pad (409) fixedly connected to one side of its outer surface.

8. The relay with anti-vibration function according to claim 7, characterized in that: A first protective plate (410) is fixedly installed on the top of one side of the outer surface of each of the two movable blocks (401), and a second protective plate (411) and a third protective plate (412) are fixedly installed on the top of the other side of the outer surface of the two movable blocks (401), respectively. The outer surface of the second protective plate (411) is movably embedded in the interior of the third protective plate (412).

9. The relay with anti-vibration function according to claim 8, characterized in that: The base body (1) has a protective groove (8) inside. The top surface of the protective groove (8) has a movable hole (9). The top surface of the inner walls on both sides of the protective groove (8) has a sliding groove (10). The two ends of the four support rods (404) are respectively fixedly installed on the front and rear surface walls inside the protective groove (8). The outer surfaces of the two moving blocks (401) and the two fixed blocks (406) are located inside the protective groove (8). The outer surfaces of the two protective pads (402) are movably embedded inside the movable hole (9).

10. The relay with anti-vibration function according to claim 9, characterized in that: The eight right-angled blocks (408) are divided into two groups. The outer surfaces of the other side of the two groups of right-angled blocks (408) are fixedly installed on the outer surfaces of the two fixed blocks (406). The outer surfaces of the two first protective plates (410) are movably embedded in the inside of the slide groove (10). The outer surfaces of the second protective plate (411) and the third protective plate (412) are in contact with the inner walls of the two sides of the movable hole (9).

Images