Electromagnetically driven chassis assemblies and rhythmic furniture

Abstract

This application relates to the art of furniture and provides an electromagnetically driven chassis assembly and a rhythmic furniture. The electromagnetically driven chassis assembly includes a first frame, a second frame, a guide mechanism and an electromagnet drive mechanism, the electromagnet drive mechanism includes a coil unit and a magnetic unit, between the coil unit and the magnetic unit, magnetic power is generated by a change in the magnetic field, causing both the first frame and the second frame to move relative to each other, the coil unit is provided with a moving channel, the magnetic unit includes a transmission shaft whose end is connected to the second frame and two magnets, the transmission shaft is movably drilled into the moving channel and the two magnets are provided on the transmission shaft, at least a part of the structure of each extends into the moving channel and the magnetic poles at opposite ends are the same, and when the direction of the current is changed, the nature of the interaction between the two magnets and the coil unit is changed simultaneously, making it easier to control the direction of movement of the transmission shaft, thereby enabling high-precision control of the movement of the transmission shaft.

Description

Technical Field

[0001] This application claims the priority of a Chinese patent application filed with the China National Intellectual Property Administration on February 7, 2024, with an application number of 2024101744737 and an invention title of "Electromagnetic Drive Chassis Assembly and Rhythmic Furniture", and all of its contents are incorporated herein by reference.

[0002] This application relates to the technical field of furniture, and in particular, to an electromagnetic drive chassis assembly and rhythmic furniture.

Background Art

[0003] With the progress of society, the quality of people's lives has been continuously improved. Rhythmic furniture has become an essential daily necessity for people's leisure time. By moving back and forth, the quality of life can be improved.

[0004] Conventional rhythmic furniture generally has a driving mechanism driven by a magnetic power driving method between a first frame and a second frame that move relative to each other. In related technologies, the utility model with a publication number of CN219148428U discloses a vibration chassis structure of a new type of massage chair. Specifically, the driving mechanism includes a coil and a magnet provided on one side of the coil, and is driven by the change of the magnetic field between the coil and the magnet. However, the above driving structure has problems that when the magnet and the coil are too close, they are likely to collide, or when the magnet and the coil are too far apart, the magnetic power is insufficient.

Summary of the Invention

[0005] This application provides an electromagnetic drive chassis assembly for solving the problems of the prior art that the combined members may collide during the magnetic drive of the driving mechanism or the magnetic power is insufficient.

[0006] This application includes a first frame, a second frame that is movable relative to the first frame, A guide mechanism provided between the first frame and the second frame, used to guide the relative movement of the first frame and the second frame, An electromagnet drive mechanism including a coil unit and a magnetic unit, wherein the first frame is connected to the coil unit and the second frame is connected to the magnetic unit, and the electromagnet drive mechanism between the coil unit and the magnetic unit generates magnetic power by a change in the magnetic field, causing both the first frame and the second frame to move relative to each other. The coil unit is provided with a moving channel, and the magnetic unit includes a transmission shaft whose end is connected to the second frame and two magnets, the transmission shaft being movably drilled into the moving channel, and the two magnets being provided on the transmission shaft, with at least a portion of each structure extending into the moving channel and having the same magnetic poles at opposite ends, thereby providing an electromagnetically driven chassis assembly.

[0007] According to the electromagnetically driven chassis assembly provided in this application, a gap L is provided between the two magnets, and the value of L is in the range of 2 mm to 10 mm.

[0008] According to the electromagnetically driven chassis assembly provided in this application, the magnetic unit includes an isolation sheet provided between the two magnets, one end of the isolation sheet in contact with one of the magnets and the other end of the isolation sheet in contact with the other of the magnets.

[0009] According to the electromagnetically driven chassis assembly provided in this application, the magnetic unit further includes a positioning structure provided on the transmission shaft and used to restrict the movement of the two magnets relative to the axis of the transmission shaft.

[0010] According to the electromagnetically driven chassis assembly provided in this application, the positioning structure is Both are two positioning washers fitted onto the transmission shaft, with the two magnets positioned between them, and the two positioning washers in one-to-one contact with the magnets, The system includes two positioning members fixedly connected to the transmission shaft, the two positioning members being in one-to-one contact with the two positioning washers in order to restrict the movement of the positioning washers relative to the axis of the transmission shaft.

[0011] According to the electromagnetically driven chassis assembly provided in this application, connecting plates are provided at both ends of the second frame corresponding to the transmission shaft, the connecting plates are provided with connecting channels having openings, and the ends of the transmission shaft move along the openings until they are inserted and fitted into the connecting channels. Here, a fastening assembly for fixing the transmission shaft and the connecting plate is provided between each end of the transmission shaft and each of the connecting plates.

[0012] According to the electromagnetically driven chassis assembly provided in this application, the fastening assembly includes a first fastening member, a second fastening member, and a stopper plate, the first fastening member and the second fastening member being located on opposite sides of the connecting plate and fixedly connected to the end of the transmission shaft, the stopper plate being fitted onto the end of the transmission shaft and fixedly connected to the connecting plate, and the outer diameter of the stopper plate being larger than the inner diameter of the connecting channel. Here, the first fastening member is located on the surface of the connecting plate away from the center of the transmission shaft, the stopper plate is located between the first fastening member and the connecting plate, and the three are in contact with each other.

[0013] According to the electromagnetically driven chassis assembly provided in this application, the coil unit is A mounting frame connected to the first frame and provided with the moving channel, The system includes a coil body provided on the aforementioned mounting frame.

[0014] According to the electromagnetically driven chassis assembly provided in this application, the mounting frame is a shaped frame made of stainless steel.

[0015] According to the electromagnetically driven chassis assembly provided in this application, the electromagnet drive mechanism comprises multiple sets, the multiple sets of electromagnet drive mechanisms are spaced apart between the first frame and the second frame.

[0016] According to the electromagnetically driven chassis assembly provided in this application, the guide mechanism is: Guide elastic plate and A first fixing unit comprising a first fixing member, a first pressing member, and a first connecting structure, wherein one end of the guide elastic plate is sandwiched between the first fixing member and the first pressing member, and the one end of the guide elastic plate, the first fixing member, and the first pressing member are all fixedly connected to the first frame via the first connecting structure. A second fixing unit comprising a second fixing member, a second pressing member, and a second connecting structure, wherein the other end of the guide elastic plate is sandwiched between the second fixing member and the second pressing member, and the other end of the guide elastic plate, the second fixing member, and the second pressing member are all fixedly connected to the second frame via the second connecting structure, Here, the first fixing member is provided with a first position-limiting recess, and the second fixing member is provided with a second position-limiting recess, and the widths of both the first and second position-limiting recesses are such that they match the width of the guide elastic plate.

[0017] According to the electromagnetically driven chassis assembly provided in this application, first magnetic modules are provided at both opposing ends of the first frame, and second magnetic modules are provided at both opposing ends of the second frame, and the first magnetic modules and the second magnetic modules correspond one-to-one and are spaced apart. Here, the magnetic poles at the opposing ends of both the first magnetic module and the second magnetic module are the same.

[0018] This application further provides rhythmic furniture including the electromagnetically driven chassis assembly described above.

[0019] In the electromagnetically driven chassis assembly provided in this application, when the coil unit is energized, magnetic force is generated between the magnetic unit and the coil unit due to a change in the magnetic field. Since the coil unit is connected to the first frame and the magnetic unit is connected to the second frame, the magnetic field affects the second frame, and as a result, both the first and second frames move relative to each other along the guide mechanism due to the magnetic force.

[0020] The purpose of providing a moving channel in the coil unit is to accommodate the movement of the magnet and the transmission shaft. This allows the magnetic unit to move freely within the moving channel without being fixed or restricted. A fitting gap exists between the outer wall of the magnetic unit and the inner wall of the moving channel to ensure that the magnetic unit can move smoothly within the moving channel, thus helping to avoid collisions between the coil unit and the magnetic unit, as well as friction and snagging. In the stationary state, at least a portion of the structure of the two magnets extends into the moving channel. That is, when the magnet is in a specific position within the moving channel but not moving, there is an overlap in the orthographic projection of at least a portion of the structure between the moving channel and the magnet. This means that there is still a certain overlap between the coil unit and the magnet, and therefore, when switching from the stationary state to the moving state, the magnetic field between the coil unit and the magnetic unit can be rapidly changed. In the moving state, as the magnetic unit moves within the moving channel, the degree of overlap of the orthographic projections between the moving channel and the magnet changes; however, the orthographic projections of the two still overlap, and a physical relationship and interaction still exists between them, which helps to ensure good working conditions between the coil unit and the magnetic unit, and allows for the effective transmission of magnetic power to the coil, thereby generating sufficient magnetic power to drive the relative movement of the first and second frames, and thus the electromagnet drive mechanism can effectively realize the relative movement of the first and second frames.

[0021] When the magnetic poles of the opposing ends of two magnets are the same (i.e., both are N poles or S poles), by changing the current direction in the coil unit, it is possible to control whether a specific end of the magnet is attracted or repelled by the magnetic field generated by the coil unit. The above-mentioned attracting or repelling force can drive the transmission shaft to move along the moving channel. Since the magnetic poles of the opposing ends of the two magnets are the same, when the current direction is changed, the nature of the interaction between the two magnets and the coil unit is simultaneously changed (changed from attraction to repulsion or from repulsion to attraction), facilitating the control of the moving direction of the transmission shaft. By utilizing the electromagnetic induction principle, high-precision control of the movement of the transmission shaft can be achieved. By adjusting the current intensity of the coil unit, the intensity of the magnetic field generated by the coil unit can be controlled, and furthermore, the magnitude of the attracting or repelling force on the magnet can be controlled, thereby reducing mechanical wear, improving the reliability and lifespan of the electromagnetic drive mechanism, and applying it to various precision control application scenarios.

Brief Description of the Drawings

[0022] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the following examples or descriptions of the prior art will be briefly introduced. Naturally, the drawings in the following description are only some embodiments of this application. Those skilled in the art can obtain other drawings based on these drawings without creative efforts.

[0023] [Figure 1] It is a schematic structural diagram of the electromagnetic drive type chassis assembly provided in this application. [Figure 2] It is a schematic diagram of the combined structure of the first frame, the second frame, and the electromagnetic drive mechanism of the electromagnetic drive type chassis assembly provided in this application. [Figure 3] It is an exploded schematic diagram of FIG. 2. [Figure 4] It is a cross-sectional schematic diagram of FIG. 2. [Figure 5] It is a schematic structural diagram of the guide mechanism provided in this application. [Figure 6]These are schematic diagrams of the structures of the first and second magnetic modules provided in this application. [Figure 7] This is a schematic diagram of the structure of the electromagnet drive mechanism provided in this application. [Modes for carrying out the invention]

[0024] To more clearly explain the purpose, technical solutions, and advantages of this application, the following provides a clear and complete description of the technical solutions in the embodiments of this application, in conjunction with the drawings of this application, and it is clear that the embodiments described are only a part of this application, not the entirety. All other embodiments that a person skilled in the art could obtain without creative effort based on the embodiments of this application are within the scope of protection of this application.

[0025] In the following, the electromagnetically driven chassis assembly and rhythmic furniture of this application will be described with reference to Figures 1 to 7. The rhythmic furniture includes a massage body that receives the user, and an electromagnetically driven chassis assembly provided at the bottom of the massage body. In some embodiments of this application, the rhythmic furniture is a rhythmic chair, and the electromagnetically driven chassis assembly is located at the bottom of the rhythmic chair. Naturally, in some embodiments, the electromagnetically driven chassis assembly can be applied to furniture of the type such as a rhythmic sofa or rhythmic bed.

[0026] Referring to Figures 1 to 4 and Figure 7, the electromagnetically driven chassis assembly provided in this application includes a first frame 100, a second frame 200, a guide mechanism 300, and an electromagnet drive mechanism 400, wherein the second frame 200 and the first frame 100 are movable relative to each other, the guide mechanism 300 is provided between the first frame 100 and the second frame 200 and is used to guide the relative movement of the first frame 100 and the second frame 200, the electromagnet drive mechanism 400 includes a coil unit 410 and a magnetic unit 420, the first frame 100 is connected to the coil unit 410, and the second frame 200 is connected to the magnetic unit The coil unit 410 and the magnetic unit 420 are connected, and magnetic power is generated between them by a change in the magnetic field, causing both the first frame 100 and the second frame 200 to move relative to each other. The coil unit 410 is provided with a moving channel 411, and the magnetic unit 420 includes a transmission shaft 421 whose end is connected to the second frame 200, and two magnets 422. The transmission shaft 421 is movably drilled into the moving channel 411, and the two magnets 422 are provided on the transmission shaft 421, with at least a portion of each structure extending into the moving channel 411 and having the same magnetic poles at opposite ends.

[0027] In the electromagnetically driven chassis assembly provided in this application, when the coil unit 410 is energized, magnetic force is generated between the magnetic unit 420 and the coil unit 410 due to a change in the magnetic field. Since the coil unit 410 is connected to the first frame 100 and the magnetic unit 420 is connected to the second frame 200, the magnetic field affects the second frame 200, and as a result, both the first frame 100 and the second frame 200 move relative to each other along the guide mechanism 300 due to the magnetic force.

[0028] The purpose of providing the movable channel 411 in the coil unit 410 is to accommodate the movement of the magnet 422 and the transmission shaft 421. This allows the magnetic unit 420 to move freely within the movable channel 411 without being fixed or restricted. A fitting gap exists between the outer wall of the magnetic unit 420 and the inner wall of the movable channel 411 to ensure that the magnetic unit 420 can move smoothly within the movable channel 411. This helps to avoid collisions between the coil unit 410 and the magnetic unit 420, as well as to avoid friction and snagging. In the stationary state, at least a portion of the structure of the two magnets 422 extends into the movable channel 411. That is, when the magnet 422 is in a specific position within the movable channel 411 but not moving, there is an overlap in the orthographic projection of at least a portion of the structure between the movable channel 411 and the magnet 422. This means that there is still a certain overlap between the coil unit 410 and the magnet 422. Therefore, when switching from the stationary state to the moving state, the magnetic field between the coil unit 410 and the magnetic unit 420 can be rapidly changed. In the moving state, when the magnetic unit 420 moves within the moving channel 411, the degree of overlap of the orthographic projections between the moving channel 411 and the magnet 422 changes, however their orthographic projections still overlap, and a physical relationship and interaction still exists between them, which helps to ensure good working conditions between the coil unit 410 and the magnetic unit 420, and allows magnetic power to be effectively transmitted to the coil, thereby generating sufficient magnetic power to drive the relative movement of the first frame 100 and the second frame 200, and thereby the electromagnet drive mechanism 400 can effectively realize the relative movement of the first frame 100 and the second frame 200.

[0029] When the magnetic poles at the opposing ends of the two magnets 422 are the same (i.e., both are N or S poles), the magnetic field generated by the coil unit 410 can be controlled by changing the direction of the current in the coil unit 410 to either attract or repel a specific end of the magnet 422, and the attractive or repulsive force can drive the transmission shaft 421 to move along the moving channel 411. Because the magnetic poles at the opposing ends of the two magnets 422 are the same, changing the direction of the current simultaneously changes the nature of the interaction between the two magnets 422 and the coil unit 410 (changing from attraction to repulsion, or from repulsion to attraction), making it easier to control the direction of movement of the transmission shaft 421. By utilizing the principle of electromagnetic induction, high-precision movement control of the transmission shaft 421 can be achieved. By adjusting the current strength of the coil unit 410, the strength of the magnetic field generated by the coil unit 410 can be controlled, and the magnitude of the attractive or repulsive force on the magnet 422 can be controlled. This reduces mechanical wear and improves the reliability and lifespan of the electromagnet drive mechanism 400, making it applicable to various precision control applications.

[0030] Referring to Figure 1, in some embodiments of this application, the cross-sectional area of ​​the second frame 200 is larger than the cross-sectional area of ​​the first frame 100. In these embodiments, the first frame 100 is a fixed frame, and the second frame 200 is a movable frame. The second frame 200 is connected to a massage body, which can be understood as a sofa pad or mattress, and is not limited to such a body. The second frame 200 is mounted over the first frame 100, and the electromagnet drive mechanism 400 and guide mechanism 300 move the second frame 200 back and forth relative to the first frame 100.

[0031] Specifically, in the embodiment of this application, magnet 422 is a neodymium iron boron magnet. By using a neodymium iron boron magnet as the core of magnet 422, it has high residual magnetism and coercivity, can generate a strong magnetic field, and has high magnetism. Furthermore, compared to other permanent magnet materials, neodymium iron boron magnets have a wide operating temperature range and can maintain good magnetic performance in high-temperature environments. In addition, neodymium iron boron magnets have a high magnetic energy product, which means that a smaller and lighter magnetic material can be manufactured with the same magnetic performance, contributing to a reduction in the volume and weight of the chassis assembly. Specifically, in this embodiment, N52 high-magnetic neodymium iron boron magnets are selected.

[0032] Specifically, referring to Figures 3 and 4, in this embodiment, a gap L is provided between the two magnets 422, and the range of L is 2 mm to 10 mm. By adopting the above structure and placing the two magnets 422 at a distance from each other, mutual interference between them is reduced, which helps to improve the reliability of operation.

[0033] Specifically, in this embodiment, the value of L is 5 mm.

[0034] Referring to Figures 3 and 4, it can be seen that in the embodiment of this application, the magnetic unit 420 includes an isolation sheet 423 provided between two magnets 422, with one end of the isolation sheet 423 in contact with one of the magnets 422 and the other end of the isolation sheet 423 in contact with the other of the magnets 422. By adopting the above structure, the presence of the isolation sheet 423 can isolate the magnetic field transmission between the two magnets 422, and by rationally designing the isolation sheet 423, the magnetic field strength of the magnetic unit 420 can be increased. The isolation sheet 423 plays a role in concentrating the magnetic field lines, making the magnetic field more concentrated and stronger, and achieving the desired magnetic field direction effect.

[0035] Specifically, referring to Figures 3 and 4, in this embodiment, the isolation sheet 423 is a stainless steel piece fitted onto the transmission shaft 421, which has a simple structure, is easy to assemble, and has low manufacturing costs. In this embodiment, the thickness of the stainless steel piece is 5 mm, which matches the distance between the two magnets 422.

[0036] Naturally, in some embodiments, the isolation sheet 423 may be an isolation film or the like, and is not limited to that here.

[0037] Referring to Figures 3 and 4, it can be understood that in the embodiment of this application, the magnetic unit 420 further includes a positioning structure provided on the transmission shaft 421, the positioning structure being used to restrict the movement of the two magnets 422 relative to the axis of the transmission shaft 421. By employing the above structure, the relative movement between the magnets 422 and the transmission shaft 421 can be effectively restricted by the arrangement of the positioning structure, providing a stable magnetic power transmission effect and ensuring that the magnetic unit 420 does not unexpectedly detach or shift position during movement, thereby ensuring the reliability and stability of the electromagnetic drive mechanism.

[0038] Specifically, referring to Figures 3 and 4, in this embodiment, the positioning structure includes two positioning washers 424 fitted onto the transmission shaft 421 and two positioning members 425 fixedly connected to the transmission shaft 421. Two magnets 422 are positioned between the two positioning washers 424, and the positioning washers 424 are in one-to-one contact with the magnets 422. The two positioning members 425 are combined in one-to-one contact with the two positioning washers 424 to restrict the movement of the positioning washers 424 relative to the axis of the transmission shaft 421. The positioning washers 424 can form a tight connection between them and the two magnets 422. Furthermore, the contact area is increased by the contact of adjacent surfaces between the positioning washers 424 and the magnets 422, thereby achieving a tight connection and preventing loosening, improving the performance and reliability of the electromagnetic drive.

[0039] The positioning washer 424 mentioned above may be an iron positioning ring or a rubber positioning ring, etc., and is not limited to these.

[0040] Specifically, in this embodiment, the transmission shaft 421 is a screw, and the positioning member 425 is a positioning nut, which is screwed onto the threaded portion of the transmission shaft 421, resulting in a simple structure and easy attachment / detachment and maintenance. Naturally, the positioning member 425 may also be a pin fixedly connected to the transmission shaft 421, or the positioning member 425 may be fixedly connected to the transmission shaft 421 by locking or the like, and is not limited thereto.

[0041] Naturally, in some embodiments, the magnet 422 can also be fixed to the transmission shaft 421 by screws, fasteners, etc.

[0042] In the embodiment of this application, connecting plates 210 are provided at both ends of the second frame 200 corresponding to the transmission shaft 421, and the connecting plates 210 are provided with connecting channels 211 having openings, and the ends of the transmission shaft 421 move along the openings until they are inserted and fitted into the connecting channels 211, and it can be understood that fastening assemblies for fixing the transmission shaft 421 and the connecting plates 210 are provided between each end of the transmission shaft 421 and each connecting plate 210.

[0043] By adopting the above design, the connection channel 211 in the connection plate 210 can provide a precise positioning position, thereby allowing the transmission shaft 421 to be accurately attached and fixed to the connection plate 210, which helps to ensure accurate alignment and combination of the transmission shaft 421 and other assemblies. The design of the opening in the connection channel 211 facilitates the installation of the transmission shaft 421, and by inserting the end of the transmission shaft 421 along the opening into the connection channel 211, the assembly process can be completed quickly and easily. The fastening assembly is then used to relatively fix the transmission shaft 421 and the connection plate 210, thereby ensuring the robustness of the connection and preventing unexpected loosening or detachment of the transmission shaft 421 during use.

[0044] Specifically, referring to Figures 2, 3, and 4, in this embodiment, the fastening assembly includes a first fastening member 510, a second fastening member 520, and a stopper plate 530. The first fastening member 510 and the second fastening member 520 are located on opposite sides of the connecting plate 210 and are fixedly connected to the end of the transmission shaft 421. The stopper plate 530 is fitted onto the end of the transmission shaft 421 and is fixedly connected to the connecting plate 210. The outer diameter of the stopper plate 530 is larger than the inner diameter of the connecting channel 211. Here, the first fastening member 510 is located on the surface of the connecting plate 210 away from the center of the transmission shaft 421, and the stopper plate 530 is located between the first fastening member 510 and the connecting plate 210, with the three in contact with each other.

[0045] By adopting the above structure, the first fastening member 510 and the second fastening member 520 are located on both sides of the connecting plate 210 and are fixedly connected to the end of the transmission shaft 421, thereby ensuring that the first fastening member 510 and the second fastening member 520 are firmly fixed to the transmission shaft 421, forming a stable connection between the connecting plate 210 and the transmission shaft 421. The outer diameter of the stopper plate 530 is larger than the inner diameter of the connecting channel 211, limiting the range of movement of the transmission shaft 421, preventing it from falling off or shifting from the connecting plate 210, and providing further support and stability. The first fastening member 510 is located on the surface of the connecting plate 210 away from the center of the transmission shaft 421, and the stopper plate 530 is located between the first fastening member 510 and the connecting plate 210, with the three in contact with each other. This arrangement strengthens the connection strength and prevents loosening or falling off between the connecting plate 210 and the transmission shaft 421.

[0046] In this embodiment, since the transmission shaft 421 is a screw, the first fastening member 510 is a first fastening nut, and the second fastening member 520 is a second fastening nut, resulting in a simple structure and easy attachment / detachment and maintenance. Naturally, the first fastening member 510 and the second fastening member 520 may also be pins fixedly connected to the transmission shaft 421, or the first fastening member 510 and the second fastening member 520 may be fixedly connected to the transmission shaft 421 by locking or the like, and this is not limited here.

[0047] Referring to Figures 2, 3, and 4, it can be understood that in the embodiment of this application, the coil unit 410 includes a mounting frame 412 and a coil body 413, the mounting frame 412 is connected to the first frame 100, the moving channel 411 is provided on the mounting frame 412, and the coil body 413 is provided on the mounting frame 412. By adopting the above structure, the coil unit 410 can be easily mounted in a desired position by connecting the mounting frame 412 to the first frame 100, the robustness of the assembly of the coil body 413 can be further improved, the relative movement between the transmission shaft 421 and the moving channel 411 can be facilitated, the structure is rational, and the transmission of movement and magnetic power can be performed more flexibly and stably.

[0048] In this embodiment, the mounting frame 412 is a stainless steel irregularly shaped frame. The design employing a stainless steel irregularly shaped frame as the mounting frame 412 provides strength, stability, and corrosion resistance, while also offering the advantages of being lightweight and aesthetically pleasing.

[0049] Specifically, referring to Figures 2, 3, and 4, in this embodiment, the mounting frame 412 includes two support side plates 4121 and a support pipe 4122, a bottom plate 110 is provided on the first frame 100, one end of each of the two support side plates 4121 is connected to the bottom plate 110, the two support side plates 4121 are spaced apart, both ends of the support pipe 4122 are each connected to the two support side plates 4121, the support pipe 4122 is hollow and constitutes a movable channel 411, the coil body 413 is arranged around the support pipe 4122, the structure is simple, easy to manufacture and has good stability.

[0050] Naturally, in some embodiments, the mounting frame 412 may include a mounting seat, the mounting seat may be provided with a movable channel 411, and the coil body 413 may be mounted around the mounting seat, but this is not limited to these embodiments.

[0051] Specifically, in this embodiment, the method for winding the coil body 413 is as follows.

[0052] Firstly, wrap it 1220 times with 0.9mm diameter pure copper enameled wire that can withstand temperatures above 220℃, leaving a 25cm tap. Then, wrap it 1000 times with 0.9mm diameter pure copper enameled wire that can withstand temperatures above 220℃, leaving a 25cm tap. Secondly, connect the taps to the taps and the tails to the tails, weld the taps to a 1.5mm diameter, 25cm long black multi-core output wire made of plastic, and weld the tails to a 1.5mm diameter, 25cm long red multi-core output wire made of plastic. The resistance of the first layer is 6.1Ω, the resistance of the second layer is 7.1Ω, and the total resistance from the black wire to the red wire is 3.3Ω to 3.4Ω.

[0053] Referring to Figures 2, 3, and 4, in this embodiment, the electromagnet drive mechanism 400 further includes a protective cover 414 that covers the coil unit 410 and serves to protect it and prevent dust accumulation.

[0054] Referring to Figure 1, it can be seen that in this embodiment, there are multiple sets of electromagnet drive mechanisms 400, and these sets of electromagnet drive mechanisms 400 are spaced apart between the first frame 100 and the second frame 200. By arranging the multiple sets of electromagnet drive mechanisms 400 spaced apart between the first frame 100 and the second frame 200, the distribution and control of balancing forces can be achieved, preventing tilting or instability. This reduces vibration and oscillation of the entire chassis assembly, improves stability during operation, and the spaced-apart multiple sets of electromagnet drive mechanisms 400 provide more uniform and comprehensive force transmission. Each set of electromagnets 422 can apply force to both the first frame 100 and the second frame 200, thereby uniformly distributing the force throughout the entire structure and enhancing the force transmission effect.

[0055] Specifically, referring to Figure 1, in this embodiment, there are four sets of electromagnet drive mechanisms 400, with two sets arranged in a row between the first frame 100 and the second frame 200 with a gap in between. Naturally, in some embodiments, the number of electromagnet drive mechanisms 400 may be one, two, three, five, eight, etc., and is not limited here.

[0056] As can be understood, referring to Figures 1 and 5, in some embodiments of this application, the guide mechanism 300 includes a guide elastic plate 310, a first fixing unit and a second fixing unit, the first fixing unit includes a first fixing member 321, a first pressing member 322 and a first connecting structure, one end of the guide elastic plate 310 is sandwiched between the first fixing member 321 and the first pressing member 322, one end of the guide elastic plate 310, the first fixing member 321 and the first pressing part The three parts of material 322 are fixedly connected to the first frame 100 via a first connecting structure, the second fixing unit includes a second fixing member 331, a second pressing member 332, and a second connecting structure, the other end of the guide elastic plate 310 is sandwiched between the second fixing member 331 and the second pressing member 332, and the other end of the guide elastic plate 310, the second fixing member 331, and the second pressing member 332 are fixedly connected to the second frame 200 via a second connecting structure. Here, the first fixing member 321 is provided with a first position-restricting recess 3211, and the second fixing member 331 is provided with a second position-restricting recess 3311, and the widths of both the first position-restricting recess 3211 and the second position-restricting recess 3311 are consistent with the width of the guide elastic plate 310.

[0057] According to the above structure, the guide elastic plate 310 can move and elastically deform in accordance with the second frame 200, the deformation direction of the guide elastic plate 310 coincides with the movement direction of the second frame 200, and when the second frame 200 and the first frame 100 move relative to each other, the direction of the force that the second frame 200 applies to the guide elastic plate 310 is perpendicular to the surface of the guide elastic plate 310. The structure of the guide elastic plate 310 itself limits the movement direction of the second frame 200, preventing the second frame 200 from deviating from its direction of movement, that is, preventing the phenomenon of the second frame 200 deviating and oscillating from its direction of movement. This improves the stability of the chassis assembly during rhythmic movement, enhances user comfort, and results in a simple structure, low cost, and long lifespan. Next, the first position-restricting recess 3211 of the first fixing member 321 and the second position-restricting recess 3311 of the second fixing member 331 have widths that match the width of the guide elastic plate 310, that is, both are in contact with the guide elastic plate 310, which helps to avoid the swinging of the guide elastic plate 310 in the width direction relative to the first body and the second frame 200, thereby improving the stability of the structure.

[0058] Naturally, the above guide structure is not limited to the guiding direction of the guide elastic plate 310, and in some embodiments, the guide structure may include a first guide base, a second guide base and a ball, the first guide base being connected to the first frame 100 and the second guide base being connected to the second frame 200, the combination of the first guide base and the second guide base forming a guide channel, and the ball being rotatably provided in and in contact with the guide channel.

[0059] Furthermore, both the first and second connection structures described above include connecting bolts and connecting nuts, have a simple structure, and are easy to attach, detach, and maintain.

[0060] Referring to Figures 1 and 6, it can be seen that in some embodiments of this application, first magnetic modules 610 are provided at both opposing ends of the first frame 100, and second magnetic modules 620 are provided at both opposing ends of the second frame 200, with the first magnetic modules 610 and the second magnetic modules 620 corresponding one-to-one and spaced apart, and the magnetic poles at the opposing ends of both the first magnetic module 610 and the second magnetic module 620 being the same. By adopting the above installation, it is possible to ensure that the relative movement between the first frame 100 and the second frame 200 is within a certain range, avoiding movement beyond the predetermined range and ensuring the normal operation of the chassis assembly. This prevents excessive force transmission between the first frame 100 and the second frame 200, prevents abnormal movement or collision in unexpected situations, avoids the possibility of overload or damage, extends the service life of the chassis assembly, simplifies the operation process, reduces the technical requirements for the operator, and improves the convenience and reliability of operation. Next, when the distance between the first frame 100 and the second frame 200 reaches a limit value, the movement between the first frame 100 and the second frame 200 is obstructed by the action of the same magnetic poles at the opposing ends of both the first magnetic module 610 and the second magnetic module 620, restricting further movement. Furthermore, due to the repulsive force of the same magnetic pole polarity, as the first frame 100 or the second frame 200 approaches the limit position, the repulsive force increases, generating an obstructing force that stops the movement of the second frame 200, contributing to the realization of high-precision position control and ensuring that the second frame 200 stops at the desired position.

[0061] Specifically, in this embodiment, the first magnetic module 610 and the second magnetic module 620 are arranged opposite each other. The first magnetic module 610 includes a first mounting plate 611 and two first magnetic columns 612 connected to the first mounting plate 611 at intervals. The second magnetic module 620 includes a second mounting plate 621 and two second magnetic columns 622 connected to the first mounting plate 611 at intervals. Here, a first pad member 613 is provided between the first magnetic columns 612 and the first mounting plate 611, and a second pad member 623 is provided between the second magnetic columns 622 and the second mounting plate 621. This configuration results in a compact structure and improves the overall stability of the structure.

[0062] Specifically, in some embodiments, the first pad member 613 and the second pad member 623 may be iron pieces or rubber pads.

[0063] Naturally, in some embodiments, the chassis assembly may further include flexible rubber pads provided on the first frame 100 or the second frame 200 to avoid collisions and wear.

[0064] In this embodiment, the front and rear sides of the combined first frame 100 and second frame 200 are each provided with one set of first magnetic modules 610 and one set of second magnetic modules 620. Naturally, the number of sets of the first magnetic modules 610 and second magnetic modules 620 may be two sets, three sets, or other numbers, and is not limited to these.

[0065] The operating principle of the electromagnetically driven chassis assembly in the embodiment of this application will be described below.

[0066] The control switch outputs a control signal to the electromagnetic drive mechanism 400. The sensor detects the relative position of the first frame 100 and the second frame 200, acquires a rhythmic position signal, and transmits the rhythmic position signal to the drive unit. In the startup phase, a drive voltage is output to the coil unit 410 in accordance with the control signal, and the current generates a magnetic field through the coil unit 410, and the magnetic field is changed in conjunction with the magnetic unit 420 to move the second frame 200 of the chassis assembly from the initial amplitude to the target amplitude. In accordance with the movement position signal, when the movement position of the second frame 200 of the chassis assembly reaches a predetermined position, the polarity of the drive voltage is adjusted to cause the second frame 200 to reciprocate rhythmically back and forth. During the operation phase, the direction and amplitude of movement of the second frame 200 are determined according to the rhythmic position signal, and the absolute value of the drive voltage is adjusted according to the direction of movement of the second frame 200. As a result, when the second frame 200 moves to the intermediate position, the absolute value of the drive voltage is maximized, and when the second frame 200 moves to the first position (front limit position) or the second position (rear limit position), the absolute value of the drive voltage is minimized. Here, the intermediate position corresponds to the movement of the second frame 200 until it reaches the minimum movement amplitude, and the first and second positions correspond to the movement of the second frame 200 in different directions until it reaches the target amplitude, respectively. Depending on the movement amplitude of the second frame 200, when the movement amplitude of the second frame 200 reaches the target amplitude, the polarity of the drive voltage is adjusted to cause the second frame 200 to reciprocate rhythmically between the first and second positions.

[0067] Finally, it should be noted that the embodiments described above are merely for illustrating, and not limiting, the technical solutions of this application. Although this application has been described in detail with reference to the embodiments, it is possible to modify the technical solutions described in each of the embodiments or to replace some of their technical features with equivalents, as will be understood by those skilled in the art. Such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of each embodiment of this application. [Explanation of symbols]

[0068] 100 Frame 1 110 Bottom plate 200 Frame 2 210 Connecting Plate 211 Connection Channels 300 Guide Mechanism 310 Guide elastic plate 321 First fixing member 3211 First position limiting concave surface 322 First pressing member 331 Second fixing member 332 Second pressing member 3311 Second position limiting concave surface 400 Electromagnetic drive mechanism 410 Coil Unit 411 Mobile Channel 412 Mounting Frame 4121 Support side plate 4122 Support pipe 413 Coil body 414 Cover 420 Magnetic Units 421 Transmission shaft 422 Magnets 423 Isolation Sheet 424 Positioning Washer 425 Positioning member 510 First fastening member 520 Second fastening member 530 Stopper plate 610 First Magnetic Module 611 First mounting plate 612 1st magnetic column 613 First pad member 620 Second Magnetic Module 621 Second mounting plate 622 2nd magnetic column 623 Second pad member

Claims

1. First frame (100), A second frame (200) that is movable relative to the first frame (100), A guide mechanism (300) is provided between the first frame (100) and the second frame (200) and is used to guide the relative movement of the first frame (100) and the second frame (200), An electromagnet drive mechanism (400) including a coil unit (410) and a magnetic unit (420), wherein the first frame (100) is connected to the coil unit (410), the second frame (200) is connected to the magnetic unit (420), and the electromagnet drive mechanism (400) between the coil unit (410) and the magnetic unit (420) generates magnetic power by a change in the magnetic field, causing both the first frame (100) and the second frame (200) to move relative to each other. An electromagnetically driven chassis assembly characterized in that the coil unit (410) is provided with a movable channel (411), the magnetic unit (420) includes a transmission shaft (421) whose end is connected to the second frame (200), and two magnets (422), the transmission shaft (421) being movably drilled into the movable channel (411), and the two magnets (422) being provided on the transmission shaft (421), with at least a portion of each structure extending into the movable channel (411) and having the same magnetic poles at opposing ends.

2. The electromagnetically driven chassis assembly according to claim 1, characterized in that a gap L is provided between the two magnets (422), and the range of the value of L is 2 mm to 10 mm.

3. The electromagnetically driven chassis assembly according to claim 2, wherein the magnetic unit (420) includes an isolation sheet (423) provided between the two magnets (422), one end of the isolation sheet (423) is in contact with one of the magnets (422), and the other end of the isolation sheet (423) is in contact with the other of the magnets (422).

4. The electromagnetically driven chassis assembly according to claim 1, wherein the magnetic unit (420) further includes a positioning structure, the positioning structure being provided on the transmission shaft (421) and used to restrict the movement of the two magnets (422) relative to the axis of the transmission shaft (421).

5. The positioning structure is Both are two positioning washers (424) fitted onto the transmission shaft (421), with the two magnets (422) positioned between them, and the two positioning washers (424) in one-to-one contact with the magnets (422), The electromagnetically driven chassis assembly according to claim 4, further comprising two positioning members (425) fixedly connected to the transmission shaft (421), the two positioning members (425) being in one-to-one contact with the two positioning washers (424) in order to restrict the movement of the positioning washers (424) relative to the axis of the transmission shaft (421).

6. Both ends of the second frame (200) corresponding to the transmission shaft (421) are provided with connecting plates (210), and the connecting plates (210) are provided with connecting channels (211) having openings, and the ends of the transmission shaft (421) move along the openings until they are inserted and fitted into the connecting channels (211). The electromagnetically driven chassis assembly according to claim 1, characterized in that a fastening assembly for fixing the transmission shaft (421) and the connecting plate (210) is provided between each end of the transmission shaft (421) and each of the connecting plates (210).

7. The fastening assembly includes a first fastening member (510), a second fastening member (520), and a stopper plate (530), wherein the first fastening member (510) and the second fastening member (520) are located on opposite sides of the connecting plate (210) and are fixedly connected to the end of the transmission shaft (421), the stopper plate (530) is fitted onto the end of the transmission shaft (421) and is fixedly connected to the connecting plate (210), and the outer diameter of the stopper plate (530) is larger than the inner diameter of the connecting channel (211). The electromagnetically driven chassis assembly according to claim 6, characterized in that the first fastening member (510) is located on the surface of the connecting plate (210) away from the central part of the transmission shaft (421), and the stopper plate (530) is located between the first fastening member (510) and the connecting plate (210), and the three are in contact with each other.

8. The coil unit (410) is A mounting frame (412) is connected to the first frame (100) and is provided with the movable channel (411), The electromagnetically driven chassis assembly according to claim 1, characterized by comprising a coil body (413) provided on the mounting frame (412).

9. The electromagnetically driven chassis assembly according to claim 8, characterized in that the mounting frame (412) is a deformed frame made of stainless steel.

10. The electromagnetically driven chassis assembly according to claim 1, characterized in that the electromagnet drive mechanism (400) is in multiple sets, and the multiple sets of electromagnet drive mechanisms (400) are arranged with a gap between the first frame (100) and the second frame (200).

11. The guide mechanism (300) is Guide elastic plate (310), A first fixing unit comprising a first fixing member (321), a first pressing member (322), and a first connecting structure, wherein one end of the guide elastic plate (310) is sandwiched between the first fixing member (321) and the first pressing member (322), and the one end of the guide elastic plate (310), the first fixing member (321), and the first pressing member (322) are all fixedly connected to the first frame (100) via the first connecting structure. A second fixing unit comprising a second fixing member (331), a second pressing member (332), and a second connecting structure, wherein the other end of the guide elastic plate (310) is sandwiched between the second fixing member (331) and the second pressing member (332), and the other end of the guide elastic plate (310), the second fixing member (331), and the second pressing member (332) are all fixedly connected to the second frame (200) via the second connecting structure. The electromagnetically driven chassis assembly according to claim 1, characterized in that the first fixing member (321) is provided with a first position-limiting recess (3211), the second fixing member (331) is provided with a second position-limiting recess (3311), and the widths of both the first position-limiting recess (3211) and the second position-limiting recess (3311) are compatible with the width of the guide elastic plate (310).

12. First magnetic modules (610) are provided at both opposing ends of the first frame (100), and second magnetic modules (620) are provided at both opposing ends of the second frame (200), with the first magnetic modules (610) and the second magnetic modules (620) corresponding to each other one-to-one and spaced apart. The electromagnetically driven chassis assembly according to claim 1, characterized in that the magnetic poles at the opposing ends of both the first magnetic module (610) and the second magnetic module (620) are the same.

13. A rhythmic furniture comprising the electromagnetically driven chassis assembly described in any one of claims 1 to 12.

Images