Electromagnetically driven underframe assembly and rhythmic furniture

Abstract

An electromagnetically driven underframe assembly and rhythmic furniture. The electromagnetically driven underframe assembly comprises a first frame body (100), a second frame body (200), a guide mechanism (300), and an electromagnet driving mechanism (400). The electromagnet driving mechanism (400) comprises a coil unit (410) and a magnetic unit (420). Magnetic power is generated between the coil unit (410) and the magnetic unit (420) by means of a magnetic field change, such that the first frame body (100) and the second frame body (200) move relative to each other. The coil unit (410) is provided with a movement channel. The magnetic unit (420) comprises a transmission shaft (421) and two magnets (422). An end part of the transmission shaft (421) is connected to the second frame body (200). The transmission shaft (421) movably penetrates through the movement channel (411). The two magnets (422) are arranged on the transmission shaft (421). The two magnets (422) at least partially extend into the movement channel (411) separately, and magnetic poles of opposite ends of the two magnets (422) are the same. The property of interaction between the two magnets (422) and the coil unit (410) can be changed simultaneously by changing the direction of the current, such that the movement direction of the transmission shaft (421) can be conveniently controlled, thereby achieving highly accurate movement control over the transmission shaft (421).

Description

[Corrected 28.03.2024 according to Rule 26] An electromagnetically driven chassis assembly and rhythmic furniture Technical Field

[0001] The present application relates to the field of furniture technology, and in particular to an electromagnetically driven chassis assembly and rhythmic furniture. Background Art

[0002] With the continuous progress of society, people's quality of life is constantly improving. Rhythmic furniture is an essential daily necessity for people's leisure life. The reciprocating motion of rhythmic furniture can improve the quality of life.

[0003] Traditional vibration furniture is driven by a drive mechanism between a first frame and a second frame that move relative to each other. The drive mechanism is usually driven by magnetic power. In the related art, patent publication number CN219148428U discloses a new vibration chassis structure for massage chairs. Specifically, the drive mechanism includes a coil and a magnet. The magnet is located on one side of the coil and is driven by the change in the magnetic field between the coil and the magnet. However, the above drive structure has the following problems: when the magnet and the coil are too close, collisions are likely to occur; or when the magnet and the coil are too far apart, there is a problem of insufficient magnetic power.

[0004] Application Contents

[0005] The present application provides an electromagnetically driven chassis assembly, which is used to solve the problem in the prior art that when a driving mechanism is magnetically driven, its mating parts may collide or the magnetic force may be insufficient.

[0006] The present application provides an electromagnetically driven chassis assembly, comprising:

[0007] First frame;

[0008] a second frame, wherein the second frame and the first frame are movable relative to each other;

[0009] A guide mechanism, the guide mechanism being provided between the first frame and the second frame, the guide mechanism being used to guide the first frame and the second frame to move relative to each other;

[0010] an electromagnet drive mechanism, the electromagnet drive mechanism comprising a coil unit and a magnetic unit, the first frame being connected to the coil unit, the second frame being connected to the magnetic unit, and the coil unit and the magnetic unit generating magnetic force by changing the magnetic field to cause the first frame and the second frame to move relative to each other;

[0011] In which, the coil unit is provided with a motion channel, the magnetic unit includes a transmission shaft and two magnets, the end of the transmission shaft is connected to the second frame, the transmission shaft is movably arranged in the motion channel, the two magnets are arranged on the transmission shaft, and at least part of the structure of the two magnets extends into the motion channel, and the magnetic poles of the opposite ends of the two magnets are the same.

[0012] According to an electromagnetically driven chassis assembly provided by the present application, a distance is provided between the two magnets, the distance is L, and the value range of L is 2 mm to 10 mm.

[0013] According to an electromagnetically driven chassis assembly provided in the present application, the magnetic unit includes an isolation plate, which is arranged between the two magnets, one end of the isolation plate abuts against one of the magnets, and the other end of the isolation plate abuts against the other magnet.

[0014] According to an electromagnetically driven chassis assembly provided by the present application, the magnetic unit further includes a positioning structure, which is provided on the transmission shaft and is used to limit the movement of the two magnets relative to the axis of the transmission shaft.

[0015] According to an electromagnetically driven chassis assembly provided by the present application, the positioning structure includes:

[0016] Two positioning washers, both of which are sleeved on the transmission shaft, and the two magnets are located between the two positioning washers, and the positioning washers abut against the magnets in a one-to-one correspondence;

[0017] Two positioning members are fixedly connected to the transmission shaft, and the two positioning members are in one-to-one contact with the two positioning washers to limit the movement of the positioning washers relative to the axis of the transmission shaft.

[0018] According to an electromagnetically driven chassis assembly provided by the present application, the second frame body is provided with connecting plates at both ends corresponding to the transmission shaft, the connecting plates are provided with connecting channels, the connecting channels have openings, and the ends of the transmission shaft move along the openings to be plugged into and engaged with the connecting channels;

[0019] Wherein, a fastening assembly is provided between each end of the transmission shaft and each of the connecting plates, and the fastening assembly is used to fix the transmission shaft and the connecting plates.

[0020] According to an electromagnetically driven chassis assembly provided by the present application, the fastening assembly includes a first fastener, a second fastener, and a limit plate, wherein the first fastener and the second fastener are respectively located on opposite sides of the connecting plate, and the first fastener and the second fastener are respectively fixedly connected to the end of the transmission shaft, the limit plate is sleeved on the end of the transmission shaft, and the limit plate is fixedly connected to the connecting plate, and the outer diameter of the limit plate is larger than the inner diameter of the connecting channel;

[0021] The first fastener is located on a side of the connecting plate away from the middle of the magnetic unit, the limiting plate is located between the first fastener and the connecting plate, and the three are in contact with each other.

[0022] According to an electromagnetically driven chassis assembly provided by the present application, the coil unit includes:

[0023] a mounting frame connected to the first frame, wherein the motion channel is provided on the mounting frame;

[0024] The coil body is arranged on the mounting frame.

[0025] According to an electromagnetically driven chassis assembly provided by the present application, the mounting frame is a stainless steel special-shaped frame.

[0026] According to an electromagnetically driven chassis assembly provided by the present application, the electromagnetic drive mechanisms are multiple groups, and the multiple groups of electromagnetic drive mechanisms are arranged at intervals between the first frame and the second frame.

[0027] According to an electromagnetically driven chassis assembly provided by the present application, the guide mechanism includes:

[0028] guide elastic plate;

[0029] 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 fixedly connected to the first frame via the first connecting structure;

[0030] 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 fixedly connected to the second frame via the second connecting structure;

[0031] The first fixing member is provided with a first limiting concave surface, and the second fixing member is provided with a second limiting concave surface. The widths of the first limiting concave surface and the second limiting concave surface are both adapted to the width of the guide elastic plate.

[0032] According to an electromagnetically driven chassis assembly provided by the present application, first magnetic modules are provided at opposite ends of the first frame, and second magnetic modules are provided at opposite ends of the second frame. The first magnetic modules and the second magnetic modules correspond to each other and are spaced apart.

[0033] The magnetic poles at opposite ends of the first magnetic module and the second magnetic module are the same.

[0034] The present application also provides a rhythmic furniture, comprising the above-mentioned electromagnetically driven base frame assembly.

[0035] The electromagnetically driven chassis assembly provided herein generates magnetic force through changes in the magnetic field between the magnetic unit and the coil unit when power is applied to the coil unit. Because 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, causing the first and second frames to move relative to each other along the guide mechanism through magnetic force.

[0036] A motion channel is provided through the coil unit in order to accommodate the movement of the magnet and the transmission shaft, so that the magnetic unit can move freely in the motion channel without being fixed or restricted; since there is a matching gap between the outer wall of the magnetic unit and the inner wall of the motion channel, the function of the matching gap is to ensure that the magnetic unit can move smoothly in the motion channel, which is beneficial to avoid collision between the coil unit and the magnetic unit, and to avoid friction or jamming; in a stationary state, at least part of the structure of the two magnets extends into the motion channel, that is, when the magnet is located at a certain position in the motion channel but does not move, the orthographic projection of at least part of the structure between the motion channel and the magnet will overlap, which means that the coil There is still a certain overlap between the unit and the magnet. Therefore, when switching from a static state to a moving state, the magnetic field between the coil unit and the magnetic unit can be quickly changed. In the moving state, when the magnetic unit moves in the moving channel, the degree of overlap of the orthographic projections between the moving channel and the magnet will change, but the orthographic projections of the two still overlap, and there is still a physical connection and interaction between the two, which is conducive to ensuring a good working state between the coil unit and the magnetic unit, and enables the magnetic force to be effectively transmitted to the coil, thereby generating sufficient magnetic force to drive the first frame and the second frame to move relative to each other, so that the electromagnet drive mechanism can effectively realize the relative movement of the first frame and the second frame.

[0037] Since the magnetic poles at the opposite ends of the two magnets are the same (i.e., both are N poles or both are S poles), by changing the direction of the current in the coil unit, it is possible to control whether the magnetic field generated by the coil unit attracts or repels one end of the magnet, and the above-mentioned attraction or repulsion force can drive the transmission shaft to move along the motion channel; since the magnetic poles at the opposite ends of the two magnets are the same, changing the direction of the current will simultaneously change the nature of the interaction between the two magnets and the coil unit (from attraction to repulsion, or from repulsion to attraction), so as to control the movement direction of the transmission shaft; by utilizing the principle of electromagnetic induction, highly precise motion control of the transmission shaft can be achieved, and by adjusting the current intensity of the coil unit, the intensity of the magnetic field generated by the coil unit can be controlled, thereby controlling the size of the attraction or repulsion force on the magnet, reducing mechanical wear, and improving the reliability and life of the electromagnet drive mechanism, which is suitable for a variety of precision control application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the present application or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0039] FIG1 is a schematic structural diagram of an electromagnetically driven chassis assembly provided by the present application;

[0040] FIG2 is a schematic diagram of the coordinated structure of the first frame, the second frame, and the electromagnet drive mechanism of the electromagnetically driven chassis assembly provided by the present application;

[0041] FIG3 is an exploded schematic diagram of FIG2 ;

[0042] FIG4 is a schematic cross-sectional view of FIG2 ;

[0043] FIG5 is a schematic structural diagram of the guide mechanism provided in this application;

[0044] FIG6 is a schematic structural diagram of a first magnetic module and a second magnetic module provided by the present application;

[0045] FIG7 is a schematic structural diagram of the electromagnet drive mechanism provided by the present application;

[0046] Reference numerals: 100, first frame; 110, bottom plate; 200, second frame; 210, connecting plate; 211, connecting channel; 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, electromagnet drive mechanism; 410, coil unit; 411, motion channel; 412, mounting frame; 4121, supporting side plate; 4 122. Support tube body; 413. Coil body; 414. Cover; 420. Magnetic unit; 421. Transmission shaft; 422. Magnet; 423. Isolation plate; 424. Positioning washer; 425. Positioning member; 510. First fastener; 520. Second fastener; 530. Limiting plate; 610. First magnetic module; 611. First mounting plate; 612. First magnetic column; 613. First gasket; 620. Second magnetic module; 621. Second mounting plate; 622. Second magnetic column; 623. Second gasket. DETAILED DESCRIPTION

[0047] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0048] The electromagnetically driven chassis assembly and rhythmic furniture of the present application are described below with reference to Figures 1-7. The rhythmic furniture includes a massage body that supports the user and an electromagnetically driven chassis assembly disposed at the bottom of the massage body. It should be noted that in some embodiments of the present application, the rhythmic furniture is a rhythmic chair, and the electromagnetically driven chassis assembly is located at the bottom of the rhythmic chair. Of course, in some embodiments, the electromagnetically driven chassis assembly can also be applied to furniture such as rhythmic sofas and rhythmic beds.

[0049] 1 to 4 and 7, according to the present application, an electromagnetically driven chassis assembly is provided, comprising 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 can move relative to each other; the guide mechanism 300 is disposed between the first frame 100 and the second frame 200, and the guide mechanism 300 is used to guide the first frame 100 and the second frame 200 to move relative to each other; the electromagnet drive mechanism 400 includes a coil unit 410 and a magnetic unit 420, wherein the first frame 100 is connected to the coil unit 410, and the second frame 200 is connected to the magnetic unit 420 is connected, and magnetic force is generated between the coil unit 410 and the magnetic unit 420 through the change of magnetic field, so that the first frame 100 and the second frame 200 move relative to each other; wherein, the coil unit 410 is provided with a motion channel 411, and the magnetic unit 420 includes a transmission shaft 421 and two magnets 422, and the end of the transmission shaft 421 is connected to the second frame 200, and the transmission shaft 421 is movably arranged in the motion channel 411, and the two magnets 422 are arranged on the transmission shaft 421, and at least part of the structure of the two magnets 422 extends into the motion channel 411, and the magnetic poles of the opposite ends of the two magnets 422 are the same.

[0050] In the electromagnetically driven chassis assembly provided herein, when power is applied to the coil unit 410, a magnetic force is generated by the change in the magnetic field between the magnetic unit 420 and the coil unit 410. 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, thereby causing the first frame 100 and the second frame 200 to move relative to each other along the guide mechanism 300 through the magnetic force.

[0051] A motion channel 411 is provided through the coil unit 410, the purpose of which is to accommodate the movement of the magnet 422 and the transmission shaft 421, so that the magnetic unit 420 can move freely in the motion channel 411 without being fixed or restricted; since there is a fitting gap between the outer wall of the magnetic unit 420 and the inner wall of the motion channel 411, the role of the fitting gap is to ensure that the magnetic unit 420 can move smoothly in the motion channel 411, which is conducive to avoiding the collision between the coil unit 410 and the magnetic unit 420, and avoiding friction or jamming; in a stationary state, at least part of the structure of the two magnets 422 extends into the motion channel 411, that is, when the magnet 422 is located at a certain position in the motion channel 411 but does not move, the orthographic projection of at least part of the structure between the motion channel 411 and the magnet 422 will overlap, which means that There is still a certain overlap between the coil unit 410 and the magnet 422. Therefore, when switching from a static state to a moving state, the magnetic field between the coil unit 410 and the magnetic unit 420 can be quickly changed. In the moving state, when the magnetic unit 420 moves in the moving channel 411, the degree of overlap of the orthographic projections between the moving channel 411 and the magnet 422 will change, but the orthographic projections of the two still overlap, and there is still a physical connection and interaction between the two, which is conducive to ensuring a good working state between the coil unit 410 and the magnetic unit 420, and enabling the magnetic force to be effectively transmitted to the coil, thereby generating sufficient magnetic force to drive the first frame 100 and the second frame 200 to move relative to each other, so that the electromagnet drive mechanism 400 can effectively achieve the relative movement of the first frame 100 and the second frame 200.

[0052] Since the magnetic poles at the opposite ends of the two magnets 422 are the same (i.e., both are N poles or both are S poles), by changing the direction of the current in the coil unit 410, it is possible to control whether the magnetic field generated by the coil unit 410 attracts or repels one end of the magnet 422. The above-mentioned attraction or repulsion force can drive the transmission shaft 421 to move along the motion channel 411; since the magnetic poles at the opposite ends of the two magnets 422 are the same, changing the direction of the current will simultaneously change the nature of the interaction between the two magnets 422 and the coil unit 410 (from attraction to repulsion, or from repulsion to attraction), so as to control the movement direction of the transmission shaft 421; by utilizing the principle of electromagnetic induction, highly precise motion control of the transmission shaft 421 can be achieved. By adjusting the current intensity of the coil unit 410, the intensity of the magnetic field generated by the coil unit 410 can be controlled, and then the magnitude of the attraction or repulsion force on the magnet 422 can be controlled, and mechanical wear can be reduced, thereby improving the reliability and life of the electromagnet drive mechanism 400, and being suitable for a variety of precision control application scenarios.

[0053] It should be noted that, referring to Figure 1, in some embodiments of the present application, the cross-sectional area of ​​the above-mentioned second frame 200 is greater than the cross-sectional area of ​​the first frame 100. In this embodiment, the first frame 100 serves as a fixed frame, the second frame 200 serves as a movable frame, and the second frame 200 is connected to the massage body. It can be understood that the massage body is a sofa cushion or a mattress, which is not limited here; the above-mentioned second frame 200 is covered on the first frame 100, and through the electromagnet drive mechanism 400 and the guide mechanism 300, the second frame 200 moves back and forth relative to the first frame 100.

[0054] Specifically, in the embodiment of the present application, magnet 422 is a neodymium iron boron magnet. Using a neodymium iron boron magnet as the core of magnet 422 has high remanence and coercive force, can generate a strong magnetic field, and has high magnetism. Secondly, compared with other permanent magnet materials, neodymium iron boron magnets have a higher operating temperature range and can maintain good magnetic properties in high temperature environments. Neodymium iron boron magnets have a higher magnetic energy product, which means that with the same magnetic properties, smaller and lighter magnets can be manufactured, which helps reduce the volume and weight of the chassis assembly. Specifically, in this embodiment, the neodymium iron boron magnet is selected as N52 high-magnetism neodymium iron boron magnet.

[0055] 3 and 4 , in this embodiment, a spacing L is provided between the two magnets 422 , and the value of L ranges from 2 mm to 10 mm. With the above structure, the two magnets 422 arranged at intervals are conducive to reducing mutual interference between them and improving operational reliability.

[0056] Specifically, in this embodiment, the value of L is 5 mm.

[0057] It can be understood that, with reference to Figures 3 and 4, in the embodiment of the present application, the magnetic unit 420 includes a spacer 423, which is disposed between the two magnets 422, with one end of the spacer 423 abutting against one of the magnets 422, and the other end of the spacer 423 abutting against the other magnet 422. By adopting the above structure, the presence of the spacer 423 can isolate the magnetic field transmission between the two magnets 422, and by reasonably designing the spacer 423, the magnetic field strength of the magnetic unit 420 can be enhanced; the spacer 423 can play the role of concentrating the magnetic field lines, making the magnetic field more concentrated and powerful, thereby achieving the desired magnetic field direction effect.

[0058] 3 and 4 , in this embodiment, the spacer 423 is a stainless steel sheet that is sleeved onto the drive shaft 421. This simple structure facilitates assembly and reduces manufacturing costs. It should be noted that in this embodiment, the stainless steel sheet is 5 mm thick, matching the spacing between the two magnets 422.

[0059] Of course, in some embodiments, the isolation sheet 423 may also be an isolation film, etc., which is not limited here.

[0060] It will be understood that, with reference to Figures 3 and 4, in the embodiment of the present application, the magnetic unit 420 further includes a positioning structure, which is provided on the transmission shaft 421. The positioning structure is used to limit the movement of the two magnets 422 relative to the axis of the transmission shaft 421. With the above structure, the relative movement between the magnets 422 and the transmission shaft 421 can be effectively limited by the arrangement of the positioning structure, thereby providing a stable magnetic power transmission effect, ensuring that the magnetic unit 420 will not be accidentally dislocated or misaligned during movement, thereby ensuring the reliability and stability of the electromagnetic drive mechanism.

[0061] Specifically, with reference to Figures 3 and 4, in this embodiment, the positioning structure includes two positioning washers 424 and two positioning members 425. The two positioning washers 424 are both sleeved on the transmission shaft 421, and the two magnets 422 are located between the two positioning washers 424. The positioning washers 424 and the magnets 422 are in abutment with each other one by one. The two positioning members 425 are fixedly connected to the transmission shaft 421. The two positioning members 425 and the two positioning washers 424 are in abutment with each other one by one to limit 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 with the two magnets 422. The adjacent surfaces of the positioning washers 424 and the magnets 422 are in surface-to-surface contact, which increases the contact area, can achieve a tight connection and prevent loosening, thereby improving the performance and reliability of the electromagnetic drive.

[0062] It should be noted that the positioning washer 424 is a positioning iron ring or a positioning rubber ring, etc., which is not limited here.

[0063] Specifically, in this embodiment, the transmission shaft 421 is a screw, and the positioning member 425 is a positioning nut. The positioning nut is threadedly engaged with the threaded section of the transmission shaft 421, resulting in a simple structure and easy disassembly and maintenance. Of course, the positioning member 425 can also be a pin fixedly connected to the transmission shaft 421, or the positioning member 425 and the transmission shaft 421 can be fixedly connected by a clamping connection or other means, which are not limited here.

[0064] Of course, in some embodiments, the magnet 422 may also be fixed to the transmission shaft 421 by screws, clamping, or the like.

[0065] It can be understood that in the embodiment of the present application, connecting plates 210 are provided at both ends of the corresponding transmission shaft 421 on the second frame 200, and a connecting channel 211 is provided on the connecting plate 210. The connecting channel 211 has an opening, and the end of the transmission shaft 421 moves along the opening to be plugged into and matched with the connecting channel 211; wherein, a fastening assembly is provided between each end of the transmission shaft 421 and each connecting plate 210, and the fastening assembly is used to fix the transmission shaft 421 and the connecting plate 210.

[0066] With the above design, the connecting channel 211 on the connecting plate 210 can provide an accurate positioning position, so that the drive shaft 421 can be accurately installed and fixed on the connecting plate 210, which helps to ensure the correct alignment and fit of the drive shaft 421 with other components; the opening design of the connecting channel 211 facilitates the installation of the drive shaft 421, and the assembly process can be completed quickly and easily by placing the end of the drive shaft 421 into the connecting channel 211 along the opening; secondly, the fastening assembly is used to relatively fix the drive shaft 421 and the connecting plate 210, which can ensure the firmness of the connection and prevent the drive shaft 421 from accidentally loosening or falling off during use.

[0067] Specifically, referring to Figures 2, 3 and 4, in this embodiment, the fastening assembly includes a first fastener 510, a second fastener 520 and a limit plate 530, the first fastener 510 and the second fastener 520 are respectively located on opposite sides of the connecting plate 210, and the first fastener 510 and the second fastener 520 are respectively fixedly connected to the end of the transmission shaft 421, the limit plate 530 is sleeved on the end of the transmission shaft 421, and the limit plate 530 is fixedly connected to the connecting plate 210, and the outer diameter of the limit plate 530 is larger than the inner diameter of the connecting channel 211; wherein, the first fastener 510 is located on a side of the connecting plate 210 away from the middle of the transmission shaft 421, the limit plate 530 is located between the first fastener 510 and the connecting plate 210, and the three are abutted.

[0068] With the above structure, the first fastener 510 and the second fastener 520 are located on both sides of the connecting plate 210 and are fixedly connected to the end of the transmission shaft 421, which can ensure that the first fastener 510 and the second fastener 520 are firmly fixed on the transmission shaft 421, so that a stable connection is formed between the connecting plate 210 and the transmission shaft 421; the outer diameter of the limiting plate 530 is larger than the inner diameter of the connecting channel 211, which can limit the movement range of the transmission shaft 421, prevent it from detaching or deviating from the connecting plate 210, and provide additional support and stability; the first fastener 510 is located on a side of the connecting plate 210 away from the middle of the transmission shaft 421, and the limiting plate 530 is located between the first fastener 510 and the connecting plate 210, and the three are abutted. The above arrangement can enhance the connection strength and prevent loosening or falling off between the connecting plate 210 and the transmission shaft 421.

[0069] It should be noted that in this embodiment, since the transmission shaft 421 is a screw, the first fastener 510 is a first fastening nut and the second fastener 520 is a second fastening nut, resulting in a simple structure and easy disassembly and maintenance. Of course, the first fastener 510 and the second fastener 520 can also be pins fixedly connected to the transmission shaft 421, or the first fastener 510 and the second fastener 520 can be fixedly connected to the transmission shaft 421 by means of a snap connection, etc., which is not limited here.

[0070] It can be understood that, with reference to Figures 2, 3, and 4, in the embodiment of the present 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 motion channel 411 is provided on the mounting frame 412, and the coil body 413 is provided on the mounting frame 412. With the above structure, the coil unit 410 can be easily installed in a desired position through the connection between the mounting frame 412 and the first frame 100, which can further improve the assembly firmness of the coil body 413 and facilitate the relative movement of the transmission shaft 421 and the motion channel 411. The structure is reasonable and can move and transmit magnetic power more flexibly and stably.

[0071] It should be noted that, in this embodiment, the mounting frame 412 is a stainless steel special-shaped frame. The use of the stainless steel special-shaped frame as the design of the mounting frame 412 can provide strength, stability and corrosion resistance, and has the advantages of being lightweight and aesthetically pleasing.

[0072] Specifically, referring to Figures 2, 3 and 4, in this embodiment, the mounting frame 412 includes two supporting side plates 4121 and a supporting tube body 4122. A base plate 110 is provided on the first frame 100. One end of the two supporting side plates 4121 is connected to the base plate 110. The two supporting side plates 4121 are arranged at intervals. The two ends of the supporting tube body 4122 are respectively connected to the two supporting side plates 4121, and the support tube body 4122 is hollow to form a movement channel 411. The coil body 413 is wound around the supporting tube body 4122. The structure is simple, easy to manufacture, and has good stability.

[0073] Of course, in some embodiments, the mounting frame 412 may also include a mounting seat, and the movement channel 411 is provided on the mounting seat, and the coil body 413 is wound on the mounting seat, which is not limited here.

[0074] Specifically, in this embodiment, the winding method of the coil body 413 is as follows:

[0075] First: Use 0.9mm diameter pure copper enameled wire with high temperature resistance of more than 220 degrees to wind 1220 turns; leave a 25cm tap. Then use 0.9mm diameter pure copper enameled wire with high temperature resistance of more than 220 degrees to wind 1000 turns; leave another 25cm tap.

[0076] Second: Then connect the head to the head, and the tail to the tail. The head wire is connected to the black wire output welded with a diameter of 1.5 mm and a length of 25 cm multi-strand plastic. The tail wire is connected to the red wire output welded with a diameter of 1.5 mm and a length of 25 cm multi-strand plastic. The first layer of resistance is 6.1 ohms, and the second layer of resistance is 7.1 ohms. The total resistance from the black wire to the red wire is between 3.3 ohms and 3.4 ohms.

[0077] It should be noted that, referring to FIG. 2 , FIG. 3 and FIG. 4 , in this embodiment, the electromagnet driving mechanism 400 further includes a protective cover 414 . The protective cover 414 is provided on the coil unit 410 to provide protection and dustproofing.

[0078] As can be understood, referring to Figure 1 , in this embodiment, multiple groups of electromagnet drive mechanisms 400 are provided, and these groups are spaced apart between the first frame 100 and the second frame 200. By spacing these groups of electromagnet drive mechanisms 400 between the first frame 100 and the second frame 200, it is possible to distribute and control the balancing force, avoiding tilting or instability, thereby reducing vibration and oscillation of the entire chassis assembly and improving operational stability. Furthermore, the multiple groups of electromagnet drive mechanisms 400 spaced apart provide more uniform and comprehensive force transmission. Each group of electromagnets 422 is capable of applying force to the first frame 100 and the second frame 200, allowing the force to be evenly distributed across the entire structure, enhancing the force transmission effect.

[0079] Specifically, referring to Figure 1 , in this embodiment, the electromagnet drive mechanisms 400 are arranged in four groups, with two groups forming a row and spaced apart between the first frame 100 and the second frame 200. Of course, in some embodiments, the electromagnet drive mechanisms 400 may also be arranged in one group, two groups, three groups, five groups, eight groups, etc., which is not limited here.

[0080] It can be understood that, with reference to Figures 1 and 5, in some embodiments of the present application, the guide mechanism 300 includes a guide elastic plate 310, a first fixing unit and a second fixing unit, the first fixing unit including a first fixing piece 321, a first pressing piece 322 and a first connecting structure, one end of the guide elastic plate 310 is sandwiched between the first fixing piece 321 and the first pressing piece 322, and one end of the guide elastic plate 310, the first fixing piece 321 and the first pressing piece 322 are fixedly connected to the first frame 100 through the first connecting structure, the second fixing unit includes a second fixing piece 331, a second pressing piece 332 and a second connecting structure, the other end of the guide elastic plate 310 is sandwiched between the second fixing piece 331 and the second pressing piece 332, and the other end of the guide elastic plate 310, the second fixing piece 331 and the second pressing piece 332 are fixedly connected to the second frame 200 through the second connecting structure;

[0081] The first fixing member 321 is provided with a first limiting concave surface 3211 , and the second fixing member 331 is provided with a second limiting concave surface 3311 . The widths of the first limiting concave surface 3211 and the second limiting concave surface 3311 are both adapted to the width of the guide elastic plate 310 .

[0082] The guide elastic plate 310 is adapted to move with the second frame 200 and to be elastically deformed. The deformation direction of the guide elastic plate 310 is consistent with the movement direction of the second frame 200. When the second frame 200 and the first frame 100 move relative to each other, the direction of the force applied by the second frame 200 to the guide elastic plate 310 is perpendicular to the plate surface of the guide elastic plate 310. The movement direction of the second frame 200 is limited by the structure of the guide elastic plate 310 itself, which is conducive to avoiding the second frame 200 from deviating from the movement direction, that is, preventing the second frame 200 from shaking in the movement direction, thereby improving the safety of the chassis assembly. Secondly, through the first limiting concave surface 3211 of the first fixing member 321 and the second limiting concave surface 3311 of the second fixing member 331, the widths of the first limiting concave surface 3211 and the second limiting concave surface 3311 are both adapted to the width of the guide elastic plate 310, that is, the first limiting concave surface 3211 and the second limiting concave surface 3311 are both in contact with the guide elastic plate 310, which can help prevent the guide elastic plate 310 from shaking relative to the first body and the second frame 200 in the width direction of the guide elastic plate 310, thereby improving the stability of the structure.

[0083] Of course, the above-mentioned guide structure is not limited to the guiding direction of the guide elastic plate 310. In some embodiments, the guide structure may also include a first guide seat, a second guide seat and a ball. The first guide seat is connected to the first frame 100, and the second guide seat is connected to the second frame 200. A guide channel is formed between the first guide seat and the second guide seat, and the ball can be rolled in the guide channel and contact each other.

[0084] It should be noted that the first connection structure and the second connection structure both include connection bolts and connection nuts, and have a simple structure and are easy to disassemble, assemble and maintain.

[0085] It can be understood that, with reference to Figures 1 and 6, in some embodiments of the present application, a first magnetic module 610 is provided at both opposite ends of the first frame 100, and a second magnetic module 620 is provided at both opposite ends of the second frame 200, and the first magnetic module 610 and the second magnetic module 620 correspond to each other one by one and are arranged at intervals; the magnetic poles of the opposite ends of the first magnetic module 610 and the second magnetic module 620 are the same. The above arrangement ensures that the relative movement between the first frame 100 and the second frame 200 is carried out within a certain range, avoiding movement beyond the specified range, thereby ensuring the normal operation of the chassis assembly, preventing excessive force transmission between the first frame 100 and the second frame 200, preventing abnormal movement or collision in unexpected situations, avoiding the possibility of overload or damage, and extending the service life of the chassis assembly. It can also simplify the operation process, reduce the technical requirements for operators, and improve the convenience and reliability of operation. Secondly, when the distance between the first frame 100 and the second frame 200 reaches the limit value, due to the effect of the same magnetic poles at the opposite ends of the first magnetic module 610 and the second magnetic module 620, the first frame 100 and the second frame 200 will be blocked, thereby limiting further movement. Due to the repulsive force of magnetic poles of the same polarity, when the first frame 100 or the second frame 200 approaches the limit position, the repulsive force increases, thereby generating a blocking force that stops the movement of the second frame 200, which can help achieve precise position control and ensure that the second frame 200 stops at the desired position.

[0086] Specifically, in this embodiment, the first magnetic module 610 and the second magnetic module 620 are arranged facing each other, the first magnetic module 610 includes a first mounting plate 611 and two first magnetic pillars 612, and the two first magnetic pillars 612 are connected to the first mounting plate 611 at intervals; the second magnetic module 620 includes a second mounting plate 621 and two second magnetic pillars 622, and the two second magnetic pillars 622 are connected to the first mounting plate 611 at intervals; wherein, a first gasket 613 is provided between the first magnetic pillar 612 and the first mounting plate 611, and a second gasket 623 is provided between the second magnetic pillar 622 and the second mounting plate 621, the structure is compact, and the stability of the entire structure can be increased.

[0087] Specifically, in some embodiments, the first pad 613 and the second pad 623 may be iron sheets or rubber pads.

[0088] Of course, in some embodiments, the base frame assembly may further include a flexible rubber pad, which is provided on the first frame body 100 or the second frame body 200 to prevent collision and wear.

[0089] It should be noted that in this embodiment, the first frame 100 and the second frame 200 are equipped with a group of first magnetic modules 610 and a group of second magnetic modules 620 on the front and rear sides. Of course, the above-mentioned first magnetic modules 610 and second magnetic modules 620 can also be other groups, one group, for example: two groups, three groups, etc., which are not limited here.

[0090] The working principle of the electromagnetically driven chassis assembly in the embodiment of the present application is described below:

[0091] The control switch outputs a control signal to the electromagnet drive mechanism 400;

[0092] The sensor detects the relative position of the first frame 100 and the second frame 200 to obtain a rhythmic position signal; and transmits the rhythmic position signal to the driving device;

[0093] During the startup phase, a driving voltage is output to the coil unit 410 based on a control signal. Current flows through the coil unit 410 to generate a magnetic field, which in turn reacts with the magnetic unit 420 to produce a magnetic field change, causing the second frame 200 of the base assembly to move from an initial amplitude to a target amplitude. Based on the motion position signal, when the second frame 200 of the base assembly reaches a preset position, the polarity of the driving voltage is adjusted to cause the second frame 200 to reciprocate back and forth.

[0094] During the operation stage, the movement direction and amplitude of the second frame 200 are determined according to the rhythmic position signal; the absolute value of the driving voltage is adjusted according to the movement direction of the second frame 200 so that when the second frame 200 moves to the middle position, the absolute value of the driving voltage is the largest, and when the second frame 200 moves to the first position (towards the front extreme position) or the second position (towards the rear extreme position), the absolute value of the driving voltage is the smallest, wherein the middle position corresponds to the second frame 200 moving to the minimum movement amplitude, and the first position and the second position respectively correspond to the second frame 200 moving to the target amplitude in different movement directions; according to 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 driving voltage is adjusted so that the second frame 200 rhythmically oscillates back and forth between the first position and the second position.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An electromagnetically driven chassis assembly, characterized in that: include: a first frame (100); a second frame (200), wherein the second frame (200) and the first frame (100) are movable relative to each other; a guide mechanism (300), the guide mechanism (300) being provided between the first frame (100) and the second frame (200), the guide mechanism (300) being used to guide the relative movement of the first frame (100) and the second frame (200); An electromagnet drive mechanism (400), the electromagnet drive mechanism (400) comprising a coil unit (410) and a magnetic unit (420), the first frame (100) being connected to the coil unit (410), the second frame (200) being connected to the magnetic unit (420), and magnetic force being generated between the coil unit (410) and the magnetic unit (420) by a change in magnetic field, so as to enable the first frame (100) and the second frame (200) to move relative to each other; The coil unit (410) is provided with a motion channel (411), and the magnetic unit (420) includes a transmission shaft (421) and two magnets (422). The end of the transmission shaft (421) is connected to the second frame (200), and the transmission shaft (421) is movably arranged in the motion channel (411). The two magnets (422) are arranged on the transmission shaft (421), and at least part of the structure of the two magnets (422) extends into the motion channel (411), and the magnetic poles of the opposite ends of the two magnets (422) are the same.

2. The electromagnetically driven chassis assembly according to claim 1, wherein: A distance is provided between the two magnets (422), the distance being L, and the value range 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 plate (423), which is arranged between the two magnets (422), one end of the isolation plate (423) abuts against one of the magnets (422), and the other end of the isolation plate (423) abuts against the other magnet (422).

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

5. The electromagnetically driven chassis assembly according to claim 4, characterized in that: The positioning structure includes: Two positioning washers (424), both of which are sleeved on the transmission shaft (421), and the two magnets (422) are located between the two positioning washers (424), and the positioning washers (424) and the magnets (422) are in abutment with each other in a one-to-one correspondence; Two positioning members (425), the two positioning members (425) are fixedly connected to the transmission shaft (421), and the two positioning members (425) are in one-to-one contact with the two positioning washers (424) to limit the movement of the positioning washers (424) relative to the axis of the transmission shaft (421).

6. The electromagnetically driven chassis assembly according to claim 1, wherein: The second frame (200) is provided with connecting plates (210) at both ends corresponding to the transmission shaft (421), and the connecting plates (210) are provided with connecting channels (211). The connecting channels (211) have an opening, and the end of the transmission shaft (421) moves along the opening to be plugged into and engaged with the connecting channels (211); A fastening assembly is provided between each end of the transmission shaft (421) and each of the connecting plates (210), and the fastening assembly is used to fix the transmission shaft (421) and the connecting plates (210).

7. The electromagnetically driven chassis assembly according to claim 6, wherein: The fastening assembly comprises a first fastener (510), a second fastener (520) and a limiting plate (530), wherein the first fastener (510) and the second fastener (520) are respectively located on opposite sides of the connecting plate (210), and the first fastener (510) and the second fastener (520) are respectively fixedly connected to the end of the transmission shaft (421), the limiting plate (530) is sleeved on the end of the transmission shaft (421), and the limiting plate (530) is fixedly connected to the connecting plate (210), and the outer diameter of the limiting plate (530) is larger than the inner diameter of the connecting channel (211); The first fastener (510) is located on a side of the connecting plate (210) away from the middle of the transmission shaft (421), and the limiting plate (530) is located between the first fastener (510) and the connecting plate (210), and the three are in contact with each other.

8. The electromagnetically driven chassis assembly according to claim 1, wherein: The coil unit (410) comprises: a mounting frame (412), the mounting frame (412) being connected to the first frame (100), and the motion channel (411) being provided on the mounting frame (412); The coil body (413) is arranged on the mounting frame (412).

9. The electromagnetically driven chassis assembly according to claim 8, wherein: The mounting frame (412) is a stainless steel special-shaped frame.

10. The electromagnetically driven chassis assembly according to claim 1, wherein: The electromagnet drive mechanisms (400) are multiple groups, and the multiple groups of electromagnet drive mechanisms (400) are arranged at intervals between the first frame (100) and the second frame (200).

11. The electromagnetically driven chassis assembly according to claim 1, wherein: The guide mechanism (300) comprises: A guide elastic plate (310); A first fixing unit comprises 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 one end of the guide elastic plate (310), the first fixing member (321) and the first pressing member (322) are 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 fixedly connected to the second frame (200) via the second connecting structure; The first fixing member (321) is provided with a first limiting concave surface (3211), and the second fixing member (331) is provided with a second limiting concave surface (3311), and the widths of the first limiting concave surface (3211) and the second limiting concave surface (3311) are both adapted to the width of the guide elastic plate (310).

12. The electromagnetically driven chassis assembly according to claim 1, wherein: The first frame (100) is provided with a first magnetic module (610) at both opposite ends, and the second frame (200) is provided with a second magnetic module (620) at both opposite ends, and the first magnetic module (610) and the second magnetic module (620) are in one-to-one correspondence and are arranged at intervals; The magnetic poles at the opposite ends of the first magnetic module (610) and the second magnetic module (620) are the same.

13. A rhythmic furniture, characterized in that: The electromagnetically driven chassis assembly comprises the electromagnetically driven chassis assembly according to any one of claims 1 to 12.

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