RU2816470C1 - Linear electric motor of reciprocating motion on magnetic cushion and electric device for hair cutting - Google Patents

Abstract

FIELD: personal and household items; electricity.

SUBSTANCE: invention relates to linear electric motors. Linear electric motor of reciprocating motion on a magnetic cushion contains a cartridge, two modules of an elastic support, a drive unit and a movement unit. Drive unit is installed on the holder and is made with possibility of electromagnetic action for driving the movement unit into reciprocating movement in the specified direction. One of two modules of elastic support is made with possibility of connection to one of two ends of cartridge. Other of the two modules of the elastic support is made with possibility of connection to the other of the two ends of the cartridge. Each of the two modules of the elastic support comprises a flat spring, an adapter assembly and a first connecting element. Flat spring has the first and the second connecting ends. First connecting end is rigidly connected to the movement unit. Invention also includes an electric device for hair cutting.

EFFECT: increasing the ease of use of an electric device for hair cutting.

20 cl, 7 dwg

Description

CROSS REFERENCE TO RELATED APPLICATIONS

[001] This application claims priority to Chinese Patent Application No. 202211676481.9, filed on December 26, 2022, the contents of which are incorporated herein by reference in their entirety.

TECHNICAL FIELD

[002] The present invention relates to the field of linear electric motors and, in particular, to a reciprocating magnetic levitation linear electric motor and an electric hair clipper.

BACKGROUND OF THE ART

[003] A linear magnetic levitation motor, also known as a linear motor, mainly includes a moving unit (actuator) and a driving unit (stator). The moving unit includes a permanent magnet. The drive unit includes an electromagnet formed by a coil wound on a metal core. There is a limited gap between the permanent magnet and the coil core. In a reciprocating linear motor, the permanent magnet moves back and forth relative to the core coil at a certain frequency. In this case, an elastic support element is required to maintain the gap between the permanent magnet and the core coil. In addition, said elastic support element also creates an elastic return force allowing the permanent magnet to reciprocate.

[004] In the known linear electric motor, the elastic support element is made in the form of an elastic sheet element. One end of the elastic sheet element is attached to a permanent magnet, and the other end of the elastic sheet element is directly welded to the base or body of the support. Direct welding of the resilient sheet element and the base or body may affect the metal properties of the resilient sheet element and, therefore, may affect the vibration frequency of the elastic sheet element. Thus, the natural frequency of the elastic sheet element may be less consistent with the frequency of current reversal, which may affect the precision and efficiency of the motor's reciprocating motion.

[005] The above description is provided only for understanding the technical solution of the present invention, and should not be interpreted as prior art of the present invention.

SUMMARY OF THE INVENTION

[006] Accordingly, the present invention provides a magnetically levitated reciprocating linear motor for improving the vibration stability of the linear motor.

[007] The present invention provides a magnetically levitated linear reciprocating electric motor, including: a cage, two elastic support modules, a drive unit, and a motion unit suspended above the drive unit. The drive unit is installed on the holder and is configured with the possibility of electromagnetic influence to drive the movement unit into reciprocating motion in a given direction. The movement unit has two ends in a given direction, and one of the two elastic support modules is configured to be attached to one of the two ends of the holder, and the other of the two elastic support modules is configured to be attached to the other of the two ends of the holder.

[008] Each of the two resilient support modules comprises a leaf spring, an adapter assembly, and a first connecting member, wherein said leaf spring has a first connecting end and a second connecting end, wherein the first connecting end is rigidly connected to the motion assembly, said first connecting element. extends through the second connection end and the adapter assembly and connects the second connection end to the adapter assembly, wherein said leaf spring is rigidly connected to the cage through the adapter assembly.

[009] In some embodiments, the cage includes a body and a base; the base, the movement unit and the drive unit are located inside the housing; the drive unit and the adapter unit are rigidly fixed to the base.

[0010] In some embodiments, the base extends in a predetermined direction in the form of an elongated strip, two ends of the base in the longitudinal direction protrude from the movement assembly to form two mounting sections, each of the two mounting sections defining a mounting groove, the adapter assembly is configured to be inserted into mounting groove, and the adapter assembly is welded to the inner surface of the mounting groove.

[0011] In some embodiments, the adapter assembly includes two plug-in blocks positioned opposite each other, the two plug-in blocks clamping two sides of the plate of the second connecting end, the first connecting element extends through the two plug-in blocks and the second connecting end and connects the two plug-in blocks to the second connecting end.

[0012] In some embodiments, the first connecting element is a rivet, the top surface of the base is recessed to define a mounting groove, and the base defines a mounting space corresponding to the rivet.

[0013] In some embodiments, the bottom wall of the mounting groove defines a mounting through hole, wherein each of the two insertion blocks includes a body portion and an insert portion coupled to a bottom surface of the housing portion, wherein the insert portion is configured to be inserted into the mounting through hole, the housing portion the section is configured to be built into the installation groove and is adjacent to the lower wall of the installation groove.

[0014] In some embodiments, two ends of the body portion in the base width direction protrude from the insert portion, the base width direction intersects with the up-down direction and the longitudinal direction of the base; the second connecting end includes a body section and an insert section connected to a lower surface of the body section; the insertion section is clamped between two insertion portions of two plug-in blocks, the body section is clamped between two body portions of two plug-in blocks; the insert section is inserted into the mounting through hole, and the bottom surface of the body section is adjacent to the bottom wall of the mounting groove.

[0015] The body portion is welded to the inner surface of the mounting groove, and the insert portion is welded to the inner surface of the mounting through hole.

[0016] In some embodiments, the leaf spring is a strip configured as a helix, the end at the center of the helix of the leaf spring serves as the first connecting end, the outer end of the leaf spring serves as the second connecting end; the motion unit includes a magnet mounting base and a magnet mounted in the magnet mounting base, a connecting section is formed at each of two ends of the magnet mounting base, and a connecting section of each of said two ends is inserted and welded to the first connecting end of the corresponding one of the two modules elastic support.

[0017] In some embodiments, the magnetic levitation linear motor further includes two vibration damping pendants. Each of the two suspension vibration damping modules includes a return sheet element, a clamp block assembly and a second connecting element, wherein said second connecting element extends through the lower end of the return sheet element and the clamp block assembly, and connects the lower end of the return sheet element to the clamp block assembly, at in this case, the clamping block assembly is rigidly connected to the base; the upper end of the return sheet element is rigidly connected to the housing, and said base is located at a distance from the housing.

[0018] In some embodiments, the clamp block assembly includes two clamp blocks positioned opposite each other, wherein the lower end of the return sheet element is clamped between the two clamp blocks, and the second connecting element extends through the two clamp blocks and the return sheet element and connects the two clamp blocks with return sheet element.

[0019] In some embodiments, an insertion protrusion is located at each of two ends of the base and projects therefrom in a predetermined direction, wherein each of two clamping blocks defines a first insertion hole corresponding to the insertion protrusion, the return sheet member defines a second insertion hole an insert corresponding to the insertion protrusion, wherein the insertion protrusion is configured to be inserted into the first insertion hole and the second insertion hole, wherein the insertion protrusion is welded to the inner wall of the first insertion hole.

[0020] In some embodiments, the return sheet member comprises a horizontal extension section and two vertical extension sections, the two vertical extension sections being arranged parallel to each other, the lower end of one of the two vertical extension sections being connected to one of the two ends of the horizontal extension section, the lower end the other of the two vertical extension sections is connected to the other by one of the two ends of the horizontal extension section. The second insertion hole is defined in the horizontal extension section, two clamping blocks clamp two sides of the plate of the horizontal extension section, the second connecting member extends through the two clamping blocks and the horizontal extension section, and connects the two clamping blocks to the horizontal extension section. Each of the two suspended vibration damping modules further includes a side connecting sheet member, wherein an upper end of each of the two vertical extension sections is sandwiched between the side connecting sheet element and the housing.

[0021] In some embodiments, the second connecting element is a rivet. The horizontal extension section defines two through holes corresponding to the two vertical extension sections, respectively, wherein the second insertion hole is located between the two through holes. The rivet continues through the specified through holes and two clamping blocks, which allows the return sheet element to be firmly connected to the clamping block module. The upper end of each of the two vertical extension sections is rigidly connected between the body and the side connecting sheet member by means of a rivet.

[0022] In some embodiments, the housing includes a housing member and a mounting lip, the housing member has two ends in a given direction, the mounting lip is connected to the top surface of each of the two ends of the housing member, the upper end of the return sheet member is rigidly connected to the inner surface of the mounting protrusion, and the upper surface of the return leaf element is located above or aligned with the upper surface of the leaf spring.

[0023] The present invention further provides an electric clipper including a cutting unit and a linear magnetic levitation reciprocating motor.

[0024] Said linear magnetic levitation motor includes a housing, two elastic support modules, a drive unit, and a motion unit suspended above the drive unit. The drive unit is installed on the holder and is configured with the possibility of electromagnetic influence to drive the movement unit into reciprocating motion in a given direction. The movement unit has two ends in a given direction, and one of the two elastic support modules is configured to be attached to one of the two ends of the holder, and the other of the two elastic support modules is configured to be attached to the other of the two ends of the holder.

[0025] Each of the two resilient support modules includes a leaf spring, an adapter assembly, and a first connecting element, wherein said leaf spring has a first connecting end and a second connecting end, wherein the first connecting end is rigidly connected to the movement assembly, said first connecting element extends through the second connection end and the adapter assembly and connects the second connection end to the adapter assembly, wherein said leaf spring is rigidly connected to the cage through the adapter assembly.

[0026] The motion unit of said linear magnetic levitation motor is connected to the cutting unit to drive the cutting unit into reciprocating motion.

[0027] In the present invention, the resilient support module includes a leaf spring, an adapter assembly, and a first connecting member. The first connecting end of the leaf spring is rigidly connected to the motion assembly, and the second connecting end of the leaf spring is rigidly connected to the adapter assembly by the first connecting member. Thus, the entire leaf spring is attached to the cage using the adapter assembly. Compared with directly welding the leaf spring to the cage, the present invention can avoid the influence caused by welding on the metal properties of the leaf spring, which eliminates the change in the vibration frequency of the leaf spring, and the natural frequency of the leaf spring can be more consistent with the frequency of the change in direction of current, by which the precision and efficiency of the reciprocating movement of the electric motor can be ensured, and the quality of the product can be improved.

BRIEF DESCRIPTION OF GRAPHIC MATERIALS

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in describing the embodiments will be briefly described. It will be appreciated that the accompanying drawings in the following description show only some embodiments of the present invention, and other drawings can be derived from these drawings by any person of ordinary skill in the art without creative modification thereof.

[0029] In FIG. 1 is a schematic diagram of a structure of a linear magnetic levitation motor according to an embodiment of the present invention.

[0030] In FIG. 2 is an exploded view of the magnetic levitation linear motor shown in FIG. 1.

[0031] In FIG. 3 is another exploded view of the magnetic levitation linear motor shown in FIG. 1.

[0032] In FIG. 4 is a cross-sectional view of the magnetic levitation linear motor shown in FIG. 2.

[0033] In FIG. 5 is a schematic diagram of a base structure in accordance with an embodiment of the present invention.

[0034] In FIG. 6 is a schematic diagram of a structure of a leaf spring according to an embodiment of the present invention.

[0035] In FIG. 7 is a schematic diagram of a structure of a return sheet member in accordance with an embodiment of the present invention.

[0036] Position numbering:

Item no. Name Item no. Name Item no. Name 10 Magnetic levitation linear electric motor 211 First connecting end 420 Magnet 100 Clip 212 Second connecting end 500 Suspension vibration damping module 110 Frame 213 Hull section 510 Return sheet element 111 Case part 214 Insertion Section 511 Horizontal extension section 112 Mounting tab 220 Adapter assembly 512 Second installation hole 120 Base 221 Plug-in block 513 Through hole 121 Mounting section 222 Hull section 514 Vertical extension section 122 Installation groove 223 Insertion area 520 Clamp block assembly 123 Installation through hole 230 First connecting element 521 Clamping block 124 Installation space 300 Drive unit 522 First installation hole 125 Insertion Tab 400 Motion node 530 Second connecting element 200 Elastic support module 410 Magnet mounting base 540 Side connecting sheet element 210 Leaf spring 411 Connecting section

[0037] Implementation in accordance with the intended purpose, functional features and advantages of the present invention will be further described with reference to embodiments and the accompanying drawings.

DETAILED DESCRIPTION

[001] The technical solutions in the embodiments of the present invention will be clearly and fully described below with reference to the accompanying drawings of the embodiments of the present invention. It will be appreciated that the embodiments described below are only a portion and not all of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative modification fall within the scope of protection of the present invention. In addition, the technical solutions of various embodiments can be combined with each other, but such combination must be achieved by one of ordinary skill in the art. When a combination of technical solutions is found to be inconsistent or cannot be implemented, such combination of technical solutions is considered not to exist and is not within the scope of protection claimed by the present invention.

[002] In addition, the terms “first” and “second”, etc., in embodiments of the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance, or as implicitly indicating the number of specified technical features. Therefore, the features defined by the definitions "first" and "second" may explicitly or implicitly include at least one such feature. In addition, “and/or” when appearing in the text means that there are three competitive solutions. For example, “A and/or B” indicates decision A, or decision B, or both decision A and decision B.

[003] The present invention provides a magnetically levitated reciprocating linear electric motor.

[004] In embodiments as shown in FIG. 1 to 4, the magnetically levitated linear motor 10 includes a holder 100, two elastic support modules 200, a drive unit 300, and a motion unit 400 suspended above the drive unit 300. The drive unit 300 is located on the holder 100 and is configured with the possibility of electromagnetic influence to cause the movement unit 400 to reciprocate in a given direction. One of the two ends of the movement unit 400 in a given direction is connected to the holder 100 by one of the two elastic support modules 200, and the other one of the two ends of the movement unit 400 in a given direction is connected to the holder 100 by the other one of the two elastic support modules 200.

[005] The resilient support module 200 includes a leaf spring 210, an adapter assembly 220, and a first coupling member 230. The leaf spring 210 has a first coupling end 211 and a second coupling end 212. The first coupling end 211 is rigidly connected to the motion assembly 400. The first coupling member 230 extends through the second coupling end 212 and secures the second coupling end 212 to the adapter assembly 220. Leaf spring 210 is rigidly coupled to cage 100 via adapter assembly 220.

[006] In the present embodiment, the cage 100 is the housing of the entire magnetic levitation linear motor 10. The cage 100 accommodates the drive assembly 300 and other components. The cage 100 may include only the base 120, in which case the drive assembly 300 and the adapter assembly 220 are attached to the base 120. In some embodiments, the cage 100 may include only the housing 110, in which case the drive assembly 300 and the adapter assembly 220 adapters are attached to the housing 110. In some embodiments, the housing 100 may include a base 120 and a housing 110, in which case the drive assembly 300 is attached to the base 120 and the adapter assembly 220 is attached to the base 120 or housing 110.

[007] The motion assembly 400 may include, but is not limited to, a permanent magnet and a magnet mounting base 410. Said permanent magnet is secured to the magnet mounting base 410. Each of the two ends of the magnet mounting base 410 is connected to the housing 100 by one resilient support module 200. The drive assembly 300 includes a metal core, a winding frame, and a coil. The coil is wound on a winding frame and mounted on the core using the winding frame. The core may be U-shaped core, E-shaped core and so on. The type of core can be determined according to actual needs and is not limited herein. In some embodiments, only one drive unit 300 may be installed, in which case one or two drive units 400 may be installed. When two motion assemblies 400 are installed, the permanent magnet magnetic pole of one of the two motion assemblies 400 is positioned and faces the permanent magnet magnetic pole of the other of the two motion assemblies 400, and the magnetic pole of one of the two motion assemblies 400 is opposite the corresponding magnetic pole of the other of the two assemblies. 400 movements. Thus, one drive unit 300 can simultaneously drive two drive units 400 to reciprocate in opposite directions. Of course, two or more drive units 300 may be installed. When two drive units 300 are installed, two motion units 400 may be installed. Each motion node 400 is located above one of the two drive nodes 300. Thus, each of the two drive nodes 300 drives one corresponding motion node 400, allowing the two motion nodes 400 to reciprocate in opposite directions. The present invention does not limit the number of drive units 300 and the number of motion units 400, and the number can be determined based on the type of linear magnetic levitation motor 10.

[008] It should be noted that any indication of direction (eg, up, down, left, right, forward, backward...) in the present invention is only used to clarify the relative position between components at a particular position, the movement of components at a particular position. If a specific position changes, the direction indications may be changed accordingly. Each of the two ends of the movement unit 400 is connected to the cage 100 through one of two elastic support modules 200. Thus, the movable unit 400 is suspended above the drive unit 300 by means of the elastic support modules 200. When a positive-negative alternating current flows through the coil of the drive unit 300, the drive unit 300 forms an electromagnet. The magnetic induction of the electromagnet and the permanent magnet, as well as the elastic return of the two elastic support modules 200, allow the drive unit 300 to cause the drive unit 400 to reciprocate in a given direction. In practice, a cutting assembly may be mounted on the base 410 to mount the magnet of the motion assembly 400. The linear magnetic levitation reciprocating motor 10 can drive the dynamic blade of the electric hair clipper so that it quickly reciprocates with respect to the static blade for cutting hair, or drive two dynamic blades of the electric hair clipper. haircuts so that they reciprocate in opposite directions to cut the hair.

[009] The leaf spring 210 is a plate structure having a certain elasticity. Typically, the leaf spring 210 is made of sheet metal. Each resilient support module 200 may include a number of leaf springs 210. For example, each resilient support module 200 may include one leaf spring 210 or two or more leaf springs 210. Two or more leaf springs 210 may be arranged in layers on top of each other or may be spaced apart. The number of leaf springs 210 can be determined based on actual requirements and is not particularly limited herein. The shape of the leaf spring 210 may vary. For example, the leaf spring 210 may have a helix shape, a staple shape, a strip shape, a frame shape, etc., as long as the leaf spring 210 is capable of stably supporting the motion unit 400 relative to the cage 100 and is capable of providing a spring return force of the leaf spring 210. spring 210, allowing the leaf spring 210 to move in the reverse direction when the motion unit 400 reciprocates in a predetermined direction.

[0010] To increase structural strength, the adapter assembly 220 and the cage 100 are typically made of metal. The first connecting end 211 of the leaf spring 210 may be rigidly connected to the movement unit 400 by welding, insertion and welding, etc. The adapter unit 220 may be of various designs. For example, the adapter assembly 220 may have a block structure, a plate structure, etc. The first connecting member 230 may be, among other things, a rivet, a screw, a bolt, etc. Specifically, each of the second leaf spring connecting end 212 210 and adapter assembly 220 defines a through hole allowing the first connecting member 230 to pass through the through hole of the leaf spring 210 and the through hole in the adapter assembly 220 to securely connect the second connecting end 212 of the leaf spring 210 to the adapter assembly 220.

[0011] In the present invention, the second connecting end 212 of the leaf spring 210 is connected to the adapter assembly 220 by the first connecting member 230. Thus, there is no deterioration of the metal properties of the leaf spring 210 while the leaf spring 210 is securely connected to the assembly 220 of the adapter, and the vibration frequency of the leaf spring 210 will not be affected. The adapter assembly 220 can be rigidly connected to the yoke 100 by welding, insertion and welding, etc. When placing the adapter assembly 220, the leaf spring 210 is attached to the adapter assembly 220 using the first connecting element 230, and the leaf spring 210 is attached to the cage 100 using an adapter assembly 220. Compared with directly attaching the leaf spring 210 to the cage 100, the present invention avoids attaching the leaf spring 210 directly to the cage 100. Thus, welding will not affect the metal properties of the leaf spring 210, so the frequency of the leaf spring 210 can be more match the frequency of current reversal, and vibration errors can be reduced.

[0038] In the present invention, the resilient support module 200 includes a leaf spring 210, an adapter assembly 220, and a first connecting member 230. The first connecting end 211 of the leaf spring 210 is attached to the motion assembly 400. The second connection 212 of the leaf spring 210 is attached to the adapter assembly 220 by the first coupling member 230. Thus, the entire leaf spring 210 is attached to the cage 100 by the adapter assembly 220. Compared with directly welding the leaf spring to the cage, the present invention can avoid the influence caused by welding on the metal properties of the leaf spring, which eliminates the change in the vibration frequency of the leaf spring, and the natural frequency of the leaf spring can be more consistent with the frequency of the change in direction of current, by which the precision and efficiency of the reciprocating movement of the electric motor can be ensured, and the quality of the product can be improved.

[0012] In the embodiment as shown in FIG. 1-4, the cage 100 includes a housing 110 and a base 120. The base 120, a motion assembly 400, and a drive assembly 300 are located within the housing 110. The drive assembly 300 and an adapter assembly 220 are rigidly mounted to the base 120.

[0013] In the present embodiment, the shape of the housing 110 may be varied. For example, the housing 110 may be shaped like a frame, a square ring, etc. The shape of the housing 110 can be determined according to actual needs and is not limited herein. The base 120 may be of a block or disk design. The base 120 may be directly rigidly coupled to the housing 110. In some embodiments, the base 120 may be elastically coupled to the housing 110 via a resilient member, that is, the base 120 is suspended from the housing 110 so that vibration can be damped and further attenuated. The housing 110 is configured to provide, to a certain extent, protection for the motion unit 400, the drive unit 300, etc., as well as for mounting the entire linear motor within the housing 110 of the electric clipper.

[0014] The winding frame of the drive assembly 300 may be attached to the base 120 by insertion and welding. In particular, a mounting slot 122 may be defined at the base 120. During assembly of the device, the adapter assembly 220 is first inserted into the mounting slot 122 of the base 120, and then the adapter assembly 220 is welded to the inner wall of the mounting slot 122 to which the adapter assembly 220 is secured. Thus, the leaf spring 210 does not need to be welded directly to the base 120, which can effectively reduce or eliminate the effect of welding on the metal properties of the leaf spring 210. Compared with attaching the adapter assembly 220 to the housing 110, in the present invention as the drive assembly 300, and the adapter assembly 220 are attached to the base 120. Because the mass of the drive assembly 300 is much greater than the mass of the motion assembly 400, the drive assembly 300 can provide shock absorption and reduce vibration transmitted to the housing 110, thereby making the product more comfortable to use.

[0015] In the embodiment as shown in FIG. 1-5, the base 120 extends in a given direction, taking the form of a strip. Each of the two ends of the base 120 longitudinally protrudes from the motion assembly 400 to form a mounting section 121. The mounting section 121 defines a mounting slot 122. The adapter assembly 220 is configured to fit into the mounting slot 122. The adapter assembly 220 is welded to the inner surface of the mounting slot 122. .

[0016] In the present embodiment, the base 120 extends in a predetermined direction, taking the form of a strip. The drive assembly 300 is attached substantially to the middle of the base 120. Thus, each of the two ends of the base 120 extends longitudinally from the motion assembly 400, and the adapter assembly 220 is inserted into the mounting slots 122 of the mounting section 121 so that the drive assembly 300 does not interfere with vibrations. leaf spring 210, and the overall design of the device becomes more compact and the dimensions of the device are reduced. By limiting the mounting groove 122 in the mounting section 121, the adapter assembly 220 is configured to fit into the mounting groove 122. Therefore, the mounting groove 122 allows the adapter assembly 220 to be positioned in advance, whereby the adapter assembly 220 can be assembled more easily and accurately. To ensure the functionality of the device, the base 120 and adapter assembly 220 are made of metal. The adapter assembly 220 is welded to the inner surface of the mounting slot 122, providing a stable connection of the adapter assembly 220 to the base 120, which ensures the functionality of the device. Specifically, a portion of the outer peripheral wall of the adapter assembly 220 contacting the inner wall of the mounting groove 122 is welded. Thus, the connection between the adapter assembly 220 and the base 120 can be more durable.

[0017] In addition, as shown in FIG. 1-4, adapter assembly 220 includes two plug-in blocks 221 that are positioned opposite each other. Two plug blocks 221 clamp two sides of the plate of the second connecting end 212. The first connecting element 230 extends through the two plug blocks 221 and connects the said plug blocks to the second connecting end 212.

[0018] In the present embodiment, each insert block 221 may have an elongated block or a square block structure. The design of the insert block 221 may be determined in accordance with the dimensions of the leaf spring 210 and is not limited herein. The two opposing insert blocks 221 may be of the same design, different designs, or slightly different designs. To ensure that the two plug blocks 221 securely clamp the second connection end 212, in some embodiments, the two plug blocks 221 may be the same shape and size. Thus, the two insert blocks 221 clamp the two sides of the plate of the second connection end 212 so that the contact area between the insert blocks 221 and the second connection end 212 is maximized, providing fastening between the insert blocks 221, whereby the second connection end 212 should be more stable. The first coupling member 230 extends through the two plug blocks 221 and the second coupling end 212 and connects the two plug blocks 221 to the second coupling end 212. The plug blocks 221 and the second coupling end 212 together form a block structure, which facilitates installation of the second coupling end 212 into the mounting groove. 122. In addition, since the two sides of the second connecting end 212 of the leaf spring 210 are sandwiched between the two insert blocks 221, it can effectively prevent deformation and warping of the second connecting end 212 of the leaf spring 210, further ensuring that the frequency of the leaf spring 210 matches the frequency of the direction change. current and reducing vibration errors.

[0019] In the embodiment as shown in FIG. 1 to 4, the first connecting end 230 is a rivet, the top surface of the base 120 is recessed to define a mounting groove 122, and the base 120 defines a mounting space 124 corresponding to the rivet.

[0020] In the present invention, the first connecting element 230 is a rivet; Compared with a bolt or other members, the rivet can prevent the first connecting member 230 from loosening due to long-term vibration, so the connection between the leaf spring 210 and the adapter assembly 220 can be more stable and reliable. The upper surface of the base 120 is recessed to form an installation groove 122. Thus, the leaf spring 210 and the adapter assembly 220 are built into the installation groove 122 from top to bottom, thereby making it easier to fit the adapter assembly 220 into the installation groove 122, and the overall assembly performance can be improved. . Since the installation space 124 is limited at the location of the base 120 where the rivet is located, the base 120 cannot interfere with the installation of the rivet.

[0021] In addition to the above-mentioned embodiments, as shown in FIG. 2-5, the bottom wall of the mounting groove 122 defines the mounting through hole 123. The insertion block 221 includes a body portion 222 and an insert portion 223 connected to the bottom surface of the body portion 222. The insert portion 223 is configured to be inserted into the mounting through hole 123. The housing portion 222 is configured to be inserted into the mounting slot 122 and is adjacent to the bottom wall of the mounting slot 122.

[0022] In the present embodiment, the lower wall of the mounting groove 122 defines the through mounting hole 123 so that the insertion block 221 includes a body portion 222 and an insertion portion 223. The insert portion 223 is configured to be inserted into the installation through hole 123. The body portion 222 is configured to be inserted into the installation groove 122 and is adjacent to the bottom wall of the installation groove 122. Thus, two-level positioning of the insert unit 221 can be achieved, and the installation area and area welding between the insert block 221 and the base 120 can be effectively increased. The insert block 221 can be mounted on the base 120 more accurately, and the connection between the insert block 221 and the base 120 can be more stable and reliable.

[0023] In addition, as shown in FIG. 2 to 6, two ends of the body portion 222 in the width direction of the base 120 protrude from the insert portion 223. The width direction of the base 120 intersects with the up-down direction and the longitudinal direction of the base 120. The second connecting end 212 includes a body section 213 and an insert section 214 connected to the bottom surface of the body section 213. The insert section 214 is sandwiched between two insert sections 223 of the two inserts. blocks 221. The body section 213 is clamped between two body sections 222 of two insert blocks 221. The insert section 214 is inserted into the mounting through hole 123. The bottom surface of the housing section 213 is adjacent to the bottom wall of the mounting groove 122.

[0024] The body portion 222 is welded to the inner surface of the mounting groove 122, and the insert portion 223 is welded to the inner surface of the mounting through hole 123.

[0025] In the present embodiment, the body portion 222 has substantially an elongated block structure. The second connecting end 212 includes a body section 213 and an insert section 214. The body section 213 is sandwiched between the two body sections 222 of the two insertion units 221. The insertion section 214 is sandwiched between the two insertion sections 223 of the two insertion units 221. That is, the second connecting end 212 and the insertion units 221 are configured to have the same shape. Thus, the contact area between the second connecting end 212 and the insertion blocks 221 can be effectively increased, and the second connecting end 212 can be more accurately mounted with the insertion block 221. Specifically, the width direction of the base 120 is perpendicular to the longitudinal direction and the up-down direction. base 120. Two ends of the body section 222 in the width direction of the base 120 protrude from the insertion portion 223, and two ends of the body section 213 in the width direction of the base 120 protrude from the insertion section 214. Thus, the second connection end 212 is suitably shaped to allow the two insert blocks 221 to clamp the second connection end 212 more firmly and securely.

[0026] To avoid interference, the two ends of the mounting groove 122 may extend through the two side walls of the base 120 in the width direction of the base 120. Thus, the mounting groove 122 is a through groove in the width direction of the base 120. When installing the insert blocks 221 and the base 120, interference must occur due to manufacturing tolerances or deformation of the plug-in blocks 221 and the base 120. In addition, welding of the plug-in blocks 221 to the base 120 can be simplified.

[0027] The body portion 222 is welded to the inner surface of the mounting groove 122, and the insert portion 223 is welded to the said inner surface of the mounting through hole 123. Specifically, the bottom wall of the body portion 222 is welded to the bottom wall of the mounting groove, and the side wall of one of the two body sections 222 remote from the other one of the two body sections 222, and the side wall of the other one of the two body sections 222, remote from one of the two body sections 222, are welded to the side wall of the insertion groove, and the lower periphery of the insertion section 223 is welded to the inner the periphery of the mounting through hole 123. By optimally increasing the stability of the connection between the insert blocks 221 and the base 120, the influence of welding on the metal properties of the leaf spring 210 is reduced, which further improves the frequency stability of the electric motor.

[0028] In the embodiment as shown in FIG. 1-6, the leaf spring 210 continues in a spiral. The helix center end of the leaf spring 210 serves as a first connecting end 211, and the outer end of the leaf spring 210 serves as a second connecting end 212. The motion assembly 400 includes a magnet mounting base 410 and a magnet 420 mounted in the magnet mounting base 410. a section 411 is formed at each of the two ends of the base 410 for attaching a magnet. Each connecting section 411 is respectively inserted and welded to the first connecting end 211.

[0029] In the present embodiment, the leaf spring 210 has a structure in which the strip is twisted from the center outward. The leaf spring 210 is coiled into a helix shape, or a staple shape, etc., which will not be limited herein. The end at the center of the helical shape of the leaf spring 210 refers to the starting position, which is at the center of the helical shape where the twisting begins. The outer end of the leaf spring 210 refers to the end that is located outside the helical shape where the twist ends. By configuring the leaf spring 210 in a helical shape, the spring arm of the leaf spring 210 can be lengthened without increasing the working space. Thus, the motion unit 400 is provided with sufficient spring force and support. In other words, the leaf spring 210 in the present embodiment provides sufficient elastic force and support, but occupies a limited space, thereby making the overall size of the device smaller.

[0030] To ensure structural strength, the magnet mounting base 410 is made of metal. Specifically, the end at the center of the helical shape of the leaf spring 210 defines a through hole. The connecting section 411 is configured to be inserted into said through hole. Each connecting section 411 of the magnet mounting base 410 is configured to be inserted into a helical shape center end (first connecting end 211) of the leaf spring 210. Thus, the magnet mounting base 410 is mounted at the helical shape center end of the leaf spring. 210, and is installed there in advance, due to which subsequent welding operations are facilitated. It should be understood that the end at the center of the helical shape of the leaf spring 210 is rigidly connected to the magnet mounting base 410. That is, the magnet 420 drives the end at the center of the helical shape of the leaf spring 210 to produce a reciprocating motion in a predetermined direction. In addition, vibrations are transmitted to the base 120 through the leaf spring 210. The end at the center of the helical shape of the leaf spring 210 is where vibration begins, and the outer end is where vibration ends. Thus, the metal properties of the outer end of the leaf spring 210 have a greater influence on the vibration frequency, and the metal properties of the end at the center of the helical shape of the leaf spring 210 have a lesser influence on the vibration frequency. Since the connecting section 411 of the magnet mounting base 410 is welded to the first connecting end 211, the vibration frequency of the leaf spring 210 remains almost unchanged, and the magnet mounting base 410 is securely connected to the leaf spring 210, and the leaf spring 210 effectively prevents the base from falling. 410 for magnet mounting due to long-term vibration.

[0031] In combination with the embodiment described above in which the adapter assembly 220 is rigidly connected to the base 120 as shown in FIG. 1–4, and FIG. 7, the linear magnetic levitation motor 10 further includes two suspension vibration damping modules 500. Each vibration damping pendant 500 includes a return sheet member 510, a clamp block assembly 520, and a second coupling member 530. The second coupling member 530 extends through the lower end of the return sheet member 510 and the clamp block assembly 520, and securely connects the lower end of the return sheet member 510 with clamp block assembly 520. The clamp block assembly 520 is rigidly coupled to the base 120. The upper end of the return sheet member 510 is rigidly coupled to the body 110 such that the base 120 is spaced away from the body 110.

[0032] In the present embodiment, the return sheet member 510 is made of an elastic material and has a certain rigidity. For example, return sheet member 510 may be a sheet metal piece. Each vibration damping pendant 500 may include a number of return sheets 510. For example, each vibration damping pendant 500 may include only one return sheet 510. In some embodiments, each vibration damping pendant 500 may include two or more return sheet elements 510, and said two or more return sheet elements 510 are laminated to each other or spaced apart. The number of return sheet members 510 may be determined based on actual requirements and is not particularly limited herein. The shape of the return sheet member 510 can be varied. For example, the return sheet member 510 may have a spiral shape, a staple shape, a frame shape, etc. The return sheet member 510 is configured to suspend the base 120 from the body 110 to provide effective shock absorption and vibration absorption between the base 120 and the body 110.

[0033] Since the base 120 is suspended from the housing 110 by a vibration damping suspension module 500, vibration from the motion assembly 400 is first transmitted to the base 120 through the elastic support module 200, with most of the vibration being absorbed by the drive assembly 300 located on the base 120, and the remaining vibration is transmitted to the return sheet member 510 of the suspension vibration damping module 500 for further absorption. Finally, the unabsorbed vibration is transmitted to the housing 110. Thus, the vibration of the entire linear motor is largely absorbed by the drive unit 300 and the suspension vibration damping unit 500, thereby effectively reducing the vibration of the housing 110. Since one end of the return sheet member 510 is connected to the base 120 , and the other end of the return sheet element 500 is connected to the housing 110, the mass of the base 120 and the stator assembly is much greater than the mass of the motion unit 400 and the cutting assembly compared to a technical solution in which one end of the return sheet element 510 is connected to the motion node 400 and the other the end is connected to the housing 110. In the present invention, the movement unit 400 may impart a lower initial acceleration to the return sheet member 510, that is, the amplitude of vibration of the return sheet member 510 relative to the housing may be smaller, allowing vibration to be more easily damped. An electric clipper equipped with a linear motor may be more convenient to use, especially at high vibration frequencies.

[0034] To improve structural strength, the return sheet member 510 and clamp block assembly 520 are typically made of metal. The upper end of the return sheet member 510 may be rigidly connected to the body 110 by welding, riveting, etc. The clamp block assembly 520 may be of a variety of designs, such as a block structure, a plate structure, etc. The second connecting member 530 may be a particularly, a rivet, a screw, a bolt, etc. Specifically, each of the lower end of the return sheet member 510 and the clamp block assembly 520 defines a through hole, wherein the second connecting member 530 extends through the through hole in the return sheet member 510 and a through hole in the clamp block assembly 520 to securely connect the lower end of the return sheet member 510 to the clamp block assembly 520.

[0035] The lower end of the return sheet member 510 is connected to the clamp block assembly 520 by means of a second coupling member 530. Therefore, when the return sheet member 510 is securely connected to the clamp block assembly 520, it allows the metal properties of the return sheet member 510 to be maintained unchanged since the specified The return sheet member 510 is not welded, so the vibration frequency of the return sheet member 510 cannot be affected by changes. The clamp block assembly 520 may be rigidly connected to the base 120 by welding, insertion and welding, etc. Upon placement of the clamp block assembly 520, the return sheet member 510 is secured to the base 120 by a second coupling member 530, and said return sheet member 510 attached to the base 120 by a clamp block assembly 520. Compared with the return sheet member 510 attached directly to the base 120, the return sheet member 510 of the present invention is not directly in contact with or welded to the body 110, whereby welding cannot affect the metal properties of the return sheet member 510 and the effect Vibration damping can be improved.

[0036] In addition, as shown in FIG. 1-4, the clamp block assembly 520 includes two clamp blocks 521 that are positioned opposite each other. The lower end of the return sheet member 510 is clamped between two clamp blocks 521. A second connection member 530 extends through the two clamp blocks 521 and the return sheet element 510 and connects the two clamp blocks 521 to the return sheet element 510.

[0037] In the present embodiment, each clamp block 521 may be configured as an elongated block or a square block. The design of the clamp block 521 may be determined in accordance with the dimensions of the return sheet member 510 and is not limited herein. The two opposing clamp blocks 521 may have the same shape and the same size, or they may have different shapes and different sizes, or they may have slightly different shapes and sizes. To ensure that the clamp blocks securely clamp the lower end of the return sheet member 510, in some embodiments, two opposing clamp blocks 521 may be the same shape and size. Two clamp blocks 521 clamp the two sides of the plate at the lower end of the return sheet element 510. Thus, the contact area between the two clamp blocks 521 and the return sheet element 510 is maximized, providing a more stable connection between the clamp blocks 521 and the return sheet element 510. Second connecting element 530 extends through two clamp blocks 521 and the lower end of the return sheet member 510 and secures the two clamp blocks 521 to the lower end of the return sheet member 510. Thus, the clamp blocks 521 and the lower end of the return sheet member 510 collectively form a block structure that facilitates the process mounting the lower end of the return sheet member 510 on the base 120. In addition, two sides of the lower end of the return sheet member 510 are sandwiched between two clamping blocks 521. Thus, deformation and warping of the lower end of the return sheet member 510 is prevented, providing additional vibration damping by the return sheet element 510.

[0038] Additionally, as shown in FIG. 1 to 5, each of the two ends of the base 120 in a given direction is provided with an insertion projection 125. The clamp block 521 defines a first insertion hole 522 corresponding to the insertion projection 125, and the return sheet member 510 defines a second insertion hole 512 corresponding to the insertion projection 125. The insertion projection 125 is configured to be inserted into the first insertion hole 522 and the second insertion hole 512, and the insertion projection 125 is welded to the inner wall of the first insertion hole 522.

[0039] In the present embodiment, when assembling the above device, the insertion projection 125 at each of the two ends of the base 120 is inserted into the first hole 522 for inserting the clamp block 521 and the second hole 512 for inserting the return sheet member 510, ensuring proper installation of the base 120 with the clamp block 521 and return sheet element 510 due to their preliminary arrangement, which facilitates subsequent welding operations. Since the insertion protrusion 125 of the base 120 is welded to the inner wall of the first insertion hole 522, it does not affect the vibration frequency of the return sheet member 510 and provides a strong connection between the base 120, the clamp block 521 and the return sheet member 510, effectively preventing the return sheet from falling off. element 510 and clamping block 521 from the base 120 due to prolonged vibration. Specifically, the outer peripheral surface of the insertion projection 125 is welded to the inner wall of the first through hole 522.

[0040] In the embodiment as shown in FIG. 7, the return sheet member 510 includes a horizontal extension section 511 and two vertical extension sections 514, the two vertical extension sections 514 being arranged parallel to each other. The lower end of one of the two vertical extension sections 514 is connected to one of the two ends of the horizontal extension section 511, and the lower end of the other of the two vertical extension sections 514 is connected to the other of the two ends of the horizontal extension section 511. The second insertion hole 512 is defined in the horizontal extension section 511. Two clamping blocks 521 clamp two sides of the horizontal extension section 511. The second connecting member 530 extends through the horizontal extension section 511 and the two clamp blocks 521, and connects the horizontal extension section 511 to the two clamp blocks 521. The vibration damping pendant 500 further includes a side connecting sheet member 540. The upper ends of the two vertical extension sections 514 sandwiched between the side connecting sheet member 540 and the housing 110.

[0041] In the present embodiment, the horizontal extension section 511 and the two vertical extension sections 514 are formed as a single unit as a one-piece structure. The return sheet member 510 includes a horizontal extension section 511 and two vertical extension sections 514, the two vertical extension sections 514 being arranged parallel to each other. Therefore, the return sheet member 510 is substantially U-shaped. Compared with the ring-shaped return sheet member 510, the upper opening of the U-shaped return sheet member 510 can compensate for installation errors, which can improve the reliability of the assembly of the return sheet member 510, the clamping blocks 520 and the housing 110, effectively preventing any influence on the return effect, caused by deformation of the return sheet member 510. Since a side connecting sheet member 540 is provided, the upper ends of the two vertical extension sections 514 are sandwiched between the side connecting sheet member 540 and the housing 110, allowing the vertical extension sections 514 to be securely connected to the housing 110.

[0042] The U-shaped return sheet member 510 has a simple structure and is easy to assemble. The two vertical extension sections 514 of the return sheet member 510 can provide a stable return force. In this way, a vibration damping effect and a supporting effect for the vibration damping pendant unit 500 can be achieved. Two clamp blocks 521 clamp two sides of the horizontal extension section 511, a second connecting member 530 extends through the clamp blocks 521 and the horizontal extension section 511 and connects the clamp blocks 521 to the horizontal extension section 511, and a second insertion hole 512 is defined in the horizontal extension section 511. Thus, the horizontal extension section 511 is fully utilized to provide a rigid connection between the return sheet member 510 and the clamping blocks 521, eliminating the influence of the second connecting member 530 and the insertion projection 125 on the return effect of the two vertical extension sections 514.

[0043] In the embodiment as shown in FIG. 1–3 and FIG. 7, the second connecting member 530 is a rivet. The horizontal extension section 511 defines two through holes 513 that correspond to two vertical extension sections 514. A second insertion hole 512 is located between the through holes 513. The rivet extends through said through holes 513 and two clamp blocks 521, allowing the return sheet member 510 to be firmly attached to the clamp blocks 521. The upper end of each of the two vertical extension sections 514 is rigidly connected between the housing 110 and a side connecting sheet element 540 using a rivet.

[0044] In the present invention, the second connecting element 530 is a rivet; Compared with a bolt or other members, the rivet can prevent the second connecting member 530 from becoming loose due to long-term vibration, so the connection between the return sheet member 510 and the clamp block assembly 520 can be more stable and reliable. The second insertion hole 512 is located between the through holes 513. Each of the two ends of each clamp block 521 is laterally connected to the horizontal extension section 511 by a rivet. Thus, warping and deformation of the two ends of the horizontal extension section 511 in the transverse direction are prevented, so that the connection between the horizontal extension section 511 and the clamping blocks 521 can be more stable and reliable. After connecting the return sheet element 510 to two clamping blocks 521 using rivets, the return sheet element 510 and clamping blocks 521 together form a single module. In addition, the insert block 221 of the base 120 is respectively built into the middle of the clamping block 521 and into the middle of the horizontal extension section 511. Then, welding of the contact edges between the insert block 221, the clamping block 521 and the horizontal extension section 511 is performed. Thus, the vibration damping pendant unit 500 is attached to the base 120. The above fixing method is easy to carry out and makes the assembly process simple. The upper end of each of the two vertical extension sections 514 is attached to the body 110 and the side connecting sheet member 540 with a rivet. Thus, the vertical extension section 514 is securely connected to the body 110 and the side connecting sheet member 540, while the connection is prevented from loosening during long-term use.

[0045] In the embodiment as shown in FIG. 1 and FIG. 2, the housing 110 includes a housing member 111 and a mounting projection 112 connected to an upper surface of each of two ends of the housing member 111 in a predetermined direction. The upper end of the return sheet element 510 is rigidly connected to the inner surface of the mounting projection 112. Thus, the upper surface of the return sheet element 510 protrudes from or is aligned with the upper surface of the leaf spring 210.

[0046] The mounting lip 112 protrudes from the top surface of the housing member 111 such that the upper end of the return sheet member 510 is rigidly connected to the inner surface of the mounting lip 112 so that the outer structure of the housing member 111 does not interfere with the resilient return of the return sheet member 510. It should be understood that as the length of the return sheet element 510 increases, the vibration amplitude of the return sheet element 510 decreases. When the effective vibration duration of the return sheet member 510 is less than the effective vibration duration of the leaf spring 210, the vibration duration of the return leaf member 510 caused by the vibration transmitted from the base 120 to the return leaf member 510 may be significant, causing the housing 110 to vibrate strongly. When the upper surface of the return leaf element 510 is above or aligned with the upper surface of the leaf spring 210, the effective vibration duration of the return leaf element 510 is greater than or equal to the effective vibration duration of the leaf spring 210, causing the vibration amplitude of the return leaf element 510 to be relatively small , that is, the vibration of the housing 110 can be reduced.

[0047] The present invention provides an electric clipper including a cutting unit and a magnetically levitated linear reciprocating motor 10. The structure of this linear magnetic levitation motor 10 is described in the above embodiments. The motion unit 400 of said linear magnetic levitation motor 10 is connected to the cutting unit to drive the cutting unit into reciprocating motion. Since all the technical solutions of all the above embodiments are applied in the said electric hair clipper, the electric hair clipper can have at least all the technical effects provided by the technical solutions of the above embodiments, which will not be described again herein.

[0048] The electric cutting device may be a razor, hair clipper, trimmer, etc., which will not be described again herein. When the linear magnetic levitation motor 10 has only one motion unit 400, a movable cutting member and a stationary cutting member may be provided, wherein the movable cutting member is connected to the movement unit 400 of the linear magnetic levitation motor 10. The movable cutting element is driven by said linear magnetically levitated reciprocating electric motor 10, which reciprocates relative to the stationary cutting element to ensure cutting. When the linear magnetic levitation motor 10 has two motion units 400, the cutting unit includes two movable cutting members, wherein the two movable cutting members are connected to the two movement units 400. A reciprocating linear electric motor 10 on a magnetic levitation drives two movable cutting elements, making reciprocating movements in opposite directions relative to each other and providing a haircut.

[0049] Finally, it should be noted that the above examples are intended only to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to examples, one of ordinary skill in the art will understand that the technical solutions described in the previous examples may be modified or some technical features may be replaced by equivalent technical features. These modifications or substitutions should not cause the said technical solutions to deviate from the spirit and scope of the present invention.

Claims (29)

1. A linear electric motor of reciprocating motion on a magnetic levitation, containing a holder, two elastic support modules, a drive unit and a motion unit suspended above the drive unit; wherein said drive unit is installed on the holder and is configured to be subjected to electromagnetic action to drive the movement unit into reciprocating motion in a given direction; said movement unit has two ends in a given direction, and one of the two elastic support modules is configured to be attached to one of the two ends of the clip, and the other of the two elastic support modules is configured to be attached to the other of the two ends of the clip; each of the two resilient support modules comprises a leaf spring, an adapter assembly and a first connecting element, wherein said leaf spring has a first connecting end and a second connecting end, wherein the first connecting end is rigidly connected to the motion assembly, said first connecting element extends through the second the connecting end and the adapter assembly and connects the second connecting end to the adapter assembly, wherein said leaf spring is rigidly connected to the cage through the adapter assembly. 2. A linear electric motor of reciprocating motion on a magnetic levitation according to claim 1, in which the holder contains a housing and a base; the base, the movement unit and the drive unit are located inside the housing; the drive unit and the adapter unit are rigidly fixed to the base. 3. The linear reciprocating electric motor on a magnetic levitation according to claim 2, in which the base continues in a given direction in the form of an elongated strip, the two ends of the base in the longitudinal direction protrude from the movement unit, forming two mounting sections, each of the two mounting sections limits the installation groove, the adapter assembly is inserted into the installation groove and welded to its inner surface. 4. The linear reciprocating electric motor on a magnetic levitation according to claim 3, in which the adapter assembly contains two plug-in blocks located opposite each other, and the two plug-in blocks clamp two sides of the plate of the second connecting end, the first connecting element extends through the two plug-in blocks and a second connecting end and connects the two plug-in units to the second connecting end. 5. The magnetically levitated reciprocating linear motor of claim 4, wherein the first connecting member is a rivet, the upper surface of the base is recessed to define an installation groove, and the base defines an installation space corresponding to the rivet. 6. The linear reciprocating electric motor on a magnetic levitation according to claim 5, in which the lower wall of the mounting groove forms an installation through hole, and each of the two insert blocks contains a housing section and an insert section connected to the lower surface of the housing section, wherein the section the insert is configured to be inserted into the installation through hole, the body section is configured to be inserted into the installation groove and is adjacent to the lower wall of the installation groove. 7. The linear magnetic levitation reciprocating electric motor according to claim 6, in which two ends of the body portion in the base width direction protrude from the insert portion, the base width direction intersects with the up-down direction and the longitudinal direction of the base; the second connecting end includes a body section and an insert section connected to a lower surface of the body section; the insertion section is clamped between two insertion portions of two plug-in blocks, the body section is clamped between two body portions of two plug-in blocks; the insert section is inserted into the installation through hole, and the bottom surface of the body section is adjacent to the bottom wall of the installation groove; And said body section is welded to the inner surface of the mounting groove, and the insert section is welded to the inner surface of the mounting through hole. 8. The linear reciprocating electric motor on a magnetic levitation according to claim 2, in which the leaf spring is a strip made in the form of a spiral, the end at the center of the spiral of the leaf spring serves as the first connecting end, the outer end of the leaf spring serves as the second connecting end end; the motion unit includes a magnet mounting base and a magnet mounted in the magnet mounting base, a connecting section is formed at each of two ends of the magnet mounting base, and a connecting section of each of said two ends is inserted and welded to the first connecting end of the corresponding one of the two modules elastic support. 9. The magnetically levitated reciprocating linear motor of claim 2, further comprising two vibration damping pendants, each of the two vibration damping pendants comprising a return sheet member, a clamp block assembly, and a second connecting member, said second connecting member. extends through the lower end of the return sheet member and the clamp block assembly and connects the lower end of the return sheet member to the clamp block assembly, wherein the clamp block assembly is rigidly connected to the base; the upper end of the return sheet element is rigidly connected to the housing, and said base is located at a distance from the housing. 10. The magnetically levitated reciprocating linear motor of claim 3, further comprising two vibration damping pendants, each of the two vibration damping pendants comprising a return sheet member, a clamp block assembly, and a second connecting member, said second connecting member. extends through the lower end of the return sheet member and the clamp block assembly and connects the lower end of the return sheet member to the clamp block assembly, wherein the clamp block assembly is rigidly connected to the base; the upper end of the return sheet element is rigidly connected to the housing, and said base is located at a distance from the housing. 11. The magnetically levitated reciprocating linear motor of claim 4, further comprising two vibration damping pendants, each of the two vibration damping pendants comprising a return sheet member, a clamp block assembly, and a second connecting member, said second connecting member. extends through the lower end of the return sheet member and the clamp block assembly and connects the lower end of the return sheet member to the clamp block assembly, wherein the clamp block assembly is rigidly connected to the base; the upper end of the return sheet element is rigidly connected to the housing, and said base is located at a distance from the housing. 12. The linear reciprocating electric motor on a magnetic levitation according to claim 9, in which the clamping block assembly contains two clamping blocks located opposite each other, and the lower end of the return sheet element is clamped between two clamping blocks, and the second connecting element continues through two clamping blocks and the return sheet element and connects the two clamping blocks to the return sheet element. 13. The linear reciprocating electric motor on a magnetic levitation according to claim 10, in which the clamping block assembly contains two clamping blocks located opposite each other, and the lower end of the return sheet element is clamped between two clamping blocks, and the second connecting element extends through two clamping blocks and the return sheet element and connects the two clamping blocks to the return sheet element. 14. The linear reciprocating electric motor on a magnetic levitation according to claim 11, in which the clamping block assembly contains two clamping blocks located opposite each other, and the lower end of the return sheet element is clamped between two clamping blocks, and the second connecting element extends through two clamping blocks and the return sheet element and connects the two clamping blocks to the return sheet element. 15. The magnetically levitated reciprocating linear motor of claim 12, wherein an insertion protrusion is located at each of two ends of the base and protrudes therefrom in a predetermined direction, wherein each of the two clamping blocks defines a first insertion hole corresponding to the insertion protrusion, the return sheet member defines a second insertion hole corresponding to the insertion protrusion, the insertion protrusion being inserted into the first and second insertion holes and welded to the inner wall of the first insertion hole. 16. The magnetically levitated reciprocating linear motor of claim 13, wherein an insertion protrusion is located at each of two ends of the base and protrudes therefrom in a predetermined direction, wherein each of the two clamping blocks defines a first insertion hole corresponding to the insertion protrusion, the return sheet member defines a second insertion hole corresponding to the insertion protrusion, the insertion protrusion being inserted into the first and second insertion holes and welded to the inner wall of the first insertion hole. 17. The linear reciprocating electric motor on a magnetic levitation according to claim 15, in which the return sheet element contains a horizontal extension section and two vertical extension sections, and the two vertical extension sections are located parallel to each other, the lower end of one of the two vertical extension sections is connected with one of the two ends of the horizontal extension section, the lower end of the other of the two vertical extension sections is connected to the other one of the two ends of the horizontal extension section; said second insertion hole is defined in the horizontal extension section, two clamping blocks clamp two sides of the plate of the horizontal extension section, the second connecting member extends through the two clamping blocks and the horizontal extension section and connects the two clamping blocks to the horizontal extension section; each of the two suspended vibration damping modules further includes a side connecting sheet member, wherein an upper end of each of the two vertical extension sections is sandwiched between the side connecting sheet element and the housing. 18. The linear reciprocating electric motor on a magnetic levitation according to claim 17, in which the second connecting element is a rivet; the horizontal extension section defines two through holes corresponding to the two vertical extension sections, respectively, the second insertion hole is located between the two through holes; said rivet continues through said through holes and two clamping blocks, allowing the return sheet member to be firmly connected to the clamping block module; said upper end of each of the two vertical extension sections is rigidly connected between the body and the side connecting sheet member by means of a rivet. 19. The linear reciprocating electric motor on a magnetic levitation according to claim 9, in which the housing contains a housing part and a mounting protrusion, the housing part has two ends in a given direction, the mounting protrusion is connected to the upper surface of each of the two ends of the housing part, while the upper end of the return sheet element is rigidly connected to the inner surface of the mounting projection, and the upper surface of the return sheet element is located above or aligned with the upper surface of the leaf spring. 20. An electric cutting device comprising a cutting unit and a magnetically levitated linear reciprocating electric motor as claimed in claim 1, wherein a movement unit of said magnetically levitated linear reciprocating electric motor is connected to the cutting unit to drive said cutting unit into reciprocating position. - forward movement.