Patent Description:
At present, in the process of using the hair clipper, the blade used for cutting hair needs to reciprocate at a high frequency, and this process needs to be completed with the help of a motor and a transmission structure. In view of the above description, the commonly used transmission structure is usually that the motor drives the eccentric wheel to rotate at a high speed, and the eccentric wheel is connected to the end of the cutter seat, thereby realizing the high-frequency reciprocating movement of the blade. The defects are: <NUM>. Since the eccentric wheel and the cutter seat need to be connected by rotation to realize the above transmission process, and when the rotation connection is performed, there is friction between the two, and in the use scenario of high frequency rotation, the wear of the rotating connection point between the eccentric wheel and the cutter seat is accelerated, and the replacement is frequent, which increases the cost;
<NUM>. Using the eccentric wheel drive structure, the interior of the hair clipper shell needs a larger accommodation cavity, so that the end of the hair clipper adjacent to the cutter head must be designed into a relatively thick shape, which increases the volume of the hair clipper itself;
To sum up, those skilled in the art have proposed a brushless electromagnetic suspension vibration motor.

Patent application <CIT> discloses a vibration type linear actuator comprising an electromagnetic block, and a moving member provided with a permanent magnet, supported so as to freely reciprocate with respect to the electromagnetic block, and reciprocatively vibrated by excitation of the electromagnetic block. A coupling supports the moving member so as to freely reciprocate with respect to the electromagnetic block, and is made to face the permanent magnet to the electromagnetic block via an air gap. The coupling is approximately U-shaped, and is composed of a vertical piece which can be freely bent in the reciprocative direction of the moving member, and a horizontal piece which is formed thin, substantially in parallel with the reciprocative direction of the moving member, and can be bent freely in a direction in which the electromagnetic block and the moving member are opposed to each other. Since the moving member is coupled with the electromagnetic block via the coupling which can be bent not only in the reciprocative direction of the moving member but also in the direction in which the electromagnetic block and the moving member face each other, the stress, which should originally concentrate on an end to be coupled with the moving member or the electromagnetic block of the coupling, is dispersed.

Patent application <CIT> also discloses a vibration motor for personal nursing, aiming to solve the technical problems of short service life and bad vibration comfortableness of a vibration motor for personal nursing in the prior art. The vibration motor includes a support, a coil assembly, a vibration assembly, and an output shaft, the coil assembly includes a silicon steel plate and a coil, the vibration assembly includes an elastic hanging sheet, a permanent magnet support, and a permanent magnet, one end of the elastic hanging sheet is fixedly connected with the support, the other end of the elastic hanging sheet is connected with the permanent magnet support, a first elastic component is arranged between one end of the permanent magnet support and one side of the silicon steel plate, and a second elastic component is arranged between the other end of the permanent magnet support and the other side of the silicon steel plate. Because the vibration motor provided utilizes the principle that a conductive coil moves under the electromagnetic force effect of an electromagnetic field, the current direction of the coil is changed to make an electromagnet perform reciprocating motion. The driving current and the motion parts generate resonance to obtain high-speed vibration, so that the driving energy of the motor can be saved, the service life of products can be effectively improved, and the vibration comfortability can be obtained.

In order to solve the deficiencies of the prior art, the present application provides a brushless electromagnetic suspension vibration motor. The application solves the following problems when the drive structure of the cutter head of the existing hair clipper adopts a motor-driven eccentric wheel structure, that is, due to friction, the rotating connection point between the eccentric wheel and the cutter seat is accelerated to wear, needs to be replaced frequently, and the cost of the hair clipper is increased. A larger accommodating cavity is required in the interior of the hair clipper, so that the end of the hair clipper adjacent to the cutter head must be designed into a relatively thick shape, which increases the volume of the hair clipper itself.

To achieve the above purpose, the present application is achieved through the following technical solutions: a brushless electromagnetic suspension vibration motor according to claim <NUM>, comprising a bottom corner support, wherein a coil fixing base is fixedly snapped on the top of the bottom corner support , and a stator coil and a stator are respectively fixedly arranged inside the coil fixing base, wherein the stator coil is configured to be wound on the outside of the stator, and the top of the stator is configured to protrude from the top of the coil fixing base, wherein elastic pieces are arranged on both sides of the bottom corner support, and the coil fixing base and the elastic pieces are connected together with a magnetic induction staggered opposite movement module.

Furthermore, the magnetic induction staggered opposite movement module comprises a swing rod fixed between the two elastic piece, movers are fixedly connected to the bottom end of each of the swing rods, the top ends of the two elastic pieces are jointly connected with an elastic piece connecting seat, and two sets of connecting rods are jointly rotatably connected to the top of the elastic piece connecting seat, a through groove is formed inside the elastic piece connecting seat, and a swing rod is arranged inside the through groove, and the bottom end of the swing rod is configured to be located below the elastic piece connecting seat.

Furthermore, the bottom corner support and the coil fixing base are fixedly clamped together by locking grooves and locking protrusions respectively, wherein the locking grooves are symmetrically arranged on both sides of the bottom of the coil fixing base, and the locking protrusions are fixedly connected to both sides of the top of the bottom corner support, wherein the locking grooves are configured to be matched with the locking protrusions.

Furthermore, a front supporting frame and a rear supporting frame are respectively fixedly connected to the front and back of the coil fixing base, and the front supporting frame, the rear supporting frame and the bottom corner support are all connected by frame connectors.

Furthermore, the bottom end of the elastic piece and the side wall of the bottom corner support are respectively connected by an elastic piece fixing main-seat and an elastic piece fixing sub-seat, wherein the elastic piece fixing main-seat and the elastic piece fixing sub-seat are respectively arranged on both sides of the elastic piece.

Furthermore, the movers are all configured to correspond to the positions of the stator and do not contact, and the swing rod is configured to be a "T"-shaped structure.

Furthermore, a limit seat is fixedly connected between the tops of the front supporting frame and the rear supporting frame, and a swing limit slot is formed inside the limit seat.

Furthermore, the top end of the swing rod is configured to extend above the limit seat and is fixedly connected with a driving rod, and the driving rod is configured to be located above the limiting seat.

Furthermore, the inner sides of the tops of the front supporting frame and the rear supporting frame are fixedly provided with spring limiting protrusions B, and both sides of the top of the swing rod are fixedly provided with spring limiting protrusions A, limit springs are jointly arranged between the spring limit protrusion A and the spring limit protrusion B.

The present application provides a brushless electromagnetic suspension vibration motor. Compared with the prior art, it has the following beneficial effects:.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

Please refer to <FIG>, the present application provides a technical solution: A brushless electromagnetic suspension vibration motor, comprising a bottom corner support <NUM>, wherein a coil fixing base <NUM> is fixedly snapped on the top of the bottom corner support <NUM>. The bottom corner support <NUM> and the coil fixing base <NUM> are fixedly clamped together by locking grooves <NUM> and locking protrusions <NUM> respectively, wherein the locking grooves <NUM> are symmetrically arranged on both sides of the bottom of the coil fixing base <NUM>, and the locking protrusions <NUM> are fixedly connected to both sides of the top of the bottom corner support <NUM>, wherein the locking grooves <NUM> are configured to be matched with the locking protrusions <NUM>. The connection between the locking grooves <NUM> and the locking protrusions <NUM> makes it easier to disassemble and assemble the bottom corner support <NUM> and the coil fixing base <NUM>. A front supporting frame <NUM> and a rear supporting frame <NUM> are respectively fixedly connected to the front and back of the coil fixing base <NUM>, and the front supporting frame <NUM>, the rear supporting frame <NUM> and the bottom corner support <NUM> are all connected by frame connectors <NUM>. After the front supporting frame <NUM>, the rear supporting frame <NUM> are installed, they can not only provide a larger support force to the entire motor, but also protect the internal structure thereof. A limit seat <NUM> is fixedly connected between the tops of the front supporting frame <NUM> and the rear supporting frame <NUM>, and a swing limit slot <NUM> is formed inside the limit seat <NUM>. A stator coil <NUM> and a stator <NUM> are respectively fixedly arranged inside the coil fixing base <NUM>, wherein the stator coil <NUM> is configured to be wound on the outside of the stator <NUM>, and the top of the stator <NUM> is configured to protrude from the top of the coil fixing base <NUM>.

At the same time, elastic pieces <NUM> are arranged on both sides of the bottom corner support <NUM>. The bottom end of the elastic piece <NUM> and the side wall of the bottom corner support <NUM> are respectively connected by an elastic piece fixing main-seat <NUM> and an elastic piece fixing sub-seat <NUM>, wherein the elastic piece fixing main-seat <NUM> and the elastic piece fixing sub-seat <NUM> are respectively arranged on both sides of the elastic piece <NUM>. This facilitates the disassembly and assembly of the spring <NUM>, which in turn facilitates replacement. The top ends of the two elastic pieces <NUM> are jointly connected with an elastic piece connecting seat <NUM>, and two sets of connecting rods <NUM> are jointly rotatably connected to the top of the elastic piece connecting seat <NUM>, a through groove <NUM> is formed inside the elastic piece connecting seat <NUM>, and a swing rod <NUM> is arranged inside the through groove <NUM>. The swing rod <NUM> is configured to be a "T"-shaped structure and the bottom end of the swing rod <NUM> is configured to be located below the elastic piece connecting seat <NUM>. Movers <NUM> are fixedly connected to the bottom end of each of the swing rods <NUM> and are all configured to correspond to the positions of the stator <NUM> and do not contact.

Furthermore, the top end of the swing rod <NUM> is configured to extend above the limit seat <NUM> and is fixedly connected with a driving rod <NUM>, and the driving rod <NUM> is configured to be located above the limiting seat <NUM>. The inner sides of the tops of the front supporting frame <NUM> and the rear supporting frame <NUM> are fixedly provided with spring limiting protrusions B <NUM>, and both sides of the top of the swing rod <NUM> are fixedly provided with spring limiting protrusions A <NUM>, limit springs <NUM> are jointly arranged between the spring limit protrusion A <NUM> and the spring limit protrusion B <NUM>.

When in use, first, a forward current is passed into the stator coil <NUM>, and under the action of the magnetic effect of the current, the stator coil <NUM> and the stator <NUM> are urged to form an induced magnetic field together, and the movers <NUM> will cut the induced magnetic field, so that among the two movers <NUM>, one mover <NUM> moves in the forward direction, and the other mover <NUM> moves in the reverse direction, forming a staggered reciprocating movement;.

During the reciprocating movement of the two movers <NUM>, the corresponding movers <NUM> will, on the one hand, drive the corresponding swing rod <NUM>, the elastic piece connecting seat <NUM> and the driving rod <NUM> (the driving rod <NUM> is equipped with a cutter seat for hair clipping or razor) move. On the other hand, when the elastic piece connecting seat <NUM> and the swing rod <NUM> move synchronously, the elastic piece connecting seat <NUM> exerts a force on the elastic piece <NUM> to cause the elastic piece <NUM> to bend and swing. At the same time, the two connecting rods <NUM> will also sway under the action of the relative movement of the elastic piece connecting seat <NUM>, thereby increasing the torsion force (please refer to <FIG>). Similarly, the swing rod <NUM> exerts a pressing force on the reset spring <NUM> on one side and a tensile force on the reset spring <NUM> on the other side, so that the reset spring <NUM> on one side is compressed and the reset spring <NUM> on the other side is elongated. When the movers <NUM> do not continue to move, the movers <NUM> are urged to reset by means of the resilient force of the elastic piece <NUM> and the reset spring <NUM>. By analogy, the motor can drive the cutter seat and the blade of the hair clipper to reciprocate at a high frequency. Compared with the structure of the existing motor-driven eccentric wheel, the motor-driven structure of the electromagnetic suspension structure has less wear, and thus the replacement frequency is greatly reduced, thereby reducing the use cost and improving the service life.

Claim 1:
A brushless electromagnetic suspension vibration motor, comprising a bottom corner support (<NUM>), wherein a coil fixing base (<NUM>) is fixedly snapped on the top of the bottom corner support (<NUM>), and a stator coil (<NUM>) and a stator (<NUM>) are respectively fixedly arranged inside the coil fixing base (<NUM>), wherein the stator coil (<NUM>) is configured to be wound on the outside of the stator (<NUM>), and the top of the stator (<NUM>) is configured to protrude from the top of the coil fixing base (<NUM>), wherein elastic pieces (<NUM>) are arranged on both sides of the bottom corner support (<NUM>), and the coil fixing base (<NUM>) and the elastic pieces (<NUM>) are connected together with a magnetic induction staggered opposite movement module;
wherein the magnetic induction staggered opposite movement module comprises two swing rods (<NUM>) fixed between the two elastic pieces (<NUM>), movers (<NUM>) are fixedly connected to the bottom end of each of the swing rods (<NUM>), the top ends of the two elastic pieces (<NUM>) are jointly connected with two elastic piece connecting seats (<NUM>), and a through groove (<NUM>) is formed inside the elastic piece connecting seats (<NUM>), and the swing rods (<NUM>) are arranged inside the through groove (<NUM>), and bottom ends of the swing rods (<NUM>) are configured to be located below the elastic piece connecting seats (<NUM>), characterized in that the magnetic induction staggered opposite movement module further comprises two sets of connecting rods (<NUM>) jointly rotatably connected to the top of the elastic piece connecting seats (<NUM>), the two connecting rods (<NUM>) swaying under the action of the relative movement of the elastic piece connecting seats (<NUM>).