CN210350942U

CN210350942U - Sound wave toothbrush motor

Info

Publication number: CN210350942U
Application number: CN201921665827.9U
Authority: CN
Inventors: 陈道刚
Original assignee: Individual
Current assignee: Chen Daogang
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-04-17
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a sound wave toothbrush motor, including the coil former, front end housing and rear end cap, be provided with U type magnetizer on the coil former, a rotating shaft has been seted up and has been worn to be equipped with through this rotating bearing on the front end cap, another tip of axis of rotation for the front end housing stretches into to the coil former in, be provided with the magnetite pole in the coil former, this magnetite pole is fixed with a tip that the axis of rotation stretched into to the coil former, be provided with a shell fragment between magnetite pole and the rear end cap, a tip of this shell fragment is as stiff end fixed mounting in the magnetite pole, another tip inserts to the rear end cap as inserting the end, it inserts and constitutes the spacing slot of circumference to have seted up the end of supplying the shell fragment in the rear end cap and inserted to the route of slot and seted up an supplementary bullport at the end of shell fragment. The utility model has the advantages of it is following and effect: the vibration reduction device has the advantages of convenience in assembly, timely reset response, high speed and high vibration efficiency.

Description

Sound wave toothbrush motor

Technical Field

The utility model relates to a sound wave toothbrush technical field, in particular to sound wave toothbrush motor.

Background

The sound wave toothbrush drives the toothbrush head to swing left and right at a high speed by utilizing the high-speed motion of the micro motor to generate mechanical vibration, and the vibration frequency of the sound wave toothbrush is consistent with or close to the sound wave frequency so as to achieve the super-strong cleaning effect. Because the sound wave toothbrush is mainly driven by the micro motor to realize cleaning, the performance of the micro motor is one of important factors determining the performance of the sound wave toothbrush, the motor applied in the existing sound wave toothbrush is generally directly arranged in the handle of the toothbrush, and the motor with the structure has the defect of complex assembly; meanwhile, the motor cannot be reset in time in the use process, the reaction speed is low, the vibration efficiency is low, and an ideal cleaning effect is difficult to achieve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sound wave toothbrush motor has convenient assembling, and the response that resets is timely, fast and the efficient advantage of vibration.

The above technical purpose of the present invention can be achieved by the following technical solutions: a sound wave toothbrush motor comprises a core body, wherein the core body comprises a coil frame, a front end cover and a rear end cover are fixedly arranged at the front end and the rear end of the coil frame respectively, a coil is wound on the coil frame, a U-shaped magnetizer which is matched with magnetic force is arranged on the coil frame, a rotating bearing is arranged on the front end cover, a rotating shaft penetrates through the rotating bearing, the other end of the rotating shaft, which is opposite to the front end cover, extends into the coil frame, a magnet rod is arranged in the coil frame, the magnet rod and the rotating shaft extend into one end of the coil frame to be fixed, a spring plate is arranged between the magnet rod and the rear end cover, one end of the spring plate is fixedly arranged in the magnet rod as a fixed end, the other end of the spring plate is inserted into the rear end cover as an insertion end, and the rear end cover is internally provided with an insertion slot for inserting the insertion end of, when the magnet rod drives the fixed end of the elastic sheet to rotate circumferentially, the insertion end of the elastic sheet is limited by the slot and cannot rotate circumferentially, and the elastic sheet deforms from the fixed end and generates a reset acting force for resetting the elastic sheet; the rear end cover is provided with an auxiliary guide hole on a path that the insertion end of the elastic sheet is inserted into the slot, and the slot is positioned at the tail end of the auxiliary guide hole.

The further setting is that: the elastic piece is characterized in that extension blocks are fixedly arranged on two sides of the insertion end of the elastic piece, the extension blocks can be inserted into the slots and form circumferential limit, each extension block and the elastic piece are located on the same plane, and the other end, opposite to the insertion end, of each extension block is connected with the elastic piece through a bent section with an oblique angle.

The further setting is that: the elastic sheet is characterized in that mounting blocks are fixedly arranged on two sides of the fixed end of the elastic sheet, each mounting block and the elastic sheet are located on the same plane, and the other end of each mounting block, which is opposite to the fixed end, is connected with the elastic sheet through a vertical section perpendicular to the direction of the elastic sheet.

The further setting is that: the front end/rear end of the coil rack are provided with a plurality of locking columns protruding outwards, locking holes are formed in the front end cover and the rear end cover corresponding to the locking columns on the front end/rear end of the coil rack, and the locking columns are inserted into the corresponding locking holes and fixed through riveting.

The further setting is that: the front end/rear end of the coil rack is provided with a plurality of positioning holes which are sunken inwards, the front end cover and the rear end cover are provided with positioning columns corresponding to the positioning holes, and the positioning holes and the positioning columns are matched for positioning, so that the locking columns are easier to align and insert into the corresponding locking holes.

The further setting is that: the two sides of the front end/the rear end of the coil rack are respectively provided with a locking arm, two locking columns and one positioning hole are fixedly arranged on each locking arm, the two locking columns are symmetrically arranged, and the positioning holes are positioned at the symmetrical centers of the two locking columns.

The utility model has the advantages that:

1. in the utility model, the coil rack can be electrified and matched with the U-shaped magnetizer to generate magnetic force, the magnetic force can drive the magnet rod to rotate, the fixed end of the elastic piece can be twisted from the fixed end due to being fixed on the magnet rod, and meanwhile, the inserting part of the elastic piece is limited by the slot, and at the moment, the elastic piece begins to deform from the fixed end and always has the reset trend; when the U type magnetizer demagnetizes, the shell fragment can utilize the effort of restoring to the throne of self, begins the return from the stiff end to quick torsion resets, cooperates the magnetic force when the U type magnetizer other end again simultaneously, increase pivoted speed that can be great, thereby provides vibration efficiency, the effectual clean effect that reaches the ideal.

2. In the utility model, the movement of the magnet rod can be understood as the swing in the left and right directions, when the magnet rod swings to return, the magnet rod can quickly return under the reset action force of the elastic sheet, thereby achieving the ideal vibration efficiency; the length of the elastic sheet has an important influence on the return speed of the magnet rod, if the length of the elastic sheet is too short, the required torsion strength is large, and if the length of the elastic sheet can be increased, the torsion strength can be effectively reduced, and the working efficiency is improved; therefore, be provided with an auxiliary guide hole in the utility model, the end of inserting of shell fragment can extend to in the auxiliary guide hole to insert its terminal slot along auxiliary guide hole, increased the length setting space of shell fragment from this, and had simple structure, the convenient advantage is dismantled in the installation.

3. The insertion end of the elastic sheet is matched with the slot through the extension block, the extension block and the elastic sheet are positioned on the same plane, the elastic sheet has the advantages of convenience in production and better torsion resetting effect, the contact surface is increased through the extension block, the matching is more reliable, meanwhile, the fixing mode of using a plastic fixing position in the traditional structure is omitted, the elastic sheet is directly inserted into the slot of the rear end cover, and the assembly is convenient and rapid; in addition, the setting of bending segment can improve the dismantlement speed when follow-up shell fragment became invalid, and through the transition guide of bending segment, the condition emergence that the card of avoiding the portion of inserting is died in the slot, is difficult to extract.

4. The fixed end of the elastic sheet is fixedly connected with the magnet rod through the mounting block, and the mounting block and the elastic sheet are positioned on the same plane, so that the torsion resetting spring has the advantages of convenience in production and better torsion resetting effect; meanwhile, the contact surface added by the mounting block and the vertical section are arranged, so that the fixing between the mounting block and the magnet rod is firm and reliable.

5. For the assembly of convenience the utility model discloses, the locking post lockable hole that front end housing and rear end cap and coil former's front end/rear end were fixed through setting up, during the assembly with each locking post aim at the locking hole insert can to accomplish fixedly through the riveting, it is swift to have simple to operate, riveting fixed is very reliable simultaneously, makes this physical stamina of this local long-time steady operation.

6. In order to ensure that the front end cover and the rear end cover are more conveniently fixed at the front end/the rear end of the coil rack during production and assembly, the positioning holes and the positioning columns are arranged and positioned, so that each locking column is easier to align and insert into the corresponding locking hole, and the production and assembly efficiency is improved; meanwhile, the machine core body is further reinforced, and the whole structure is stable and firm under the long-term vibration working condition.

7. The two locking columns are arranged on the locking arm, so that the front end/the rear end of the coil rack are provided with 4 locking columns, and the front end cover and the rear end cover are fixed through the 4 locking columns, so that the coverage of fixation is ensured, and a stable fixation effect is achieved; meanwhile, the positioning holes are located at the symmetrical centers of the two corresponding locking columns, so that the assembly is smoother, the rapid assembly can be realized only by aligning, and the assembly efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a schematic diagram of a partial explosion of the first embodiment;

FIG. 3 is a second schematic diagram of a partial explosion of the embodiment;

FIG. 4 is a schematic structural diagram of an embodiment of a spring plate;

fig. 5 is a sectional view of the embodiment.

In the figure: 11. a bobbin; 12. a U-shaped magnetizer; 13. a front end cover; 14. a rear end cap; 15. a rotating bearing; 16. a rotating shaft; 17. a magnet rod; 21. a spring plate; 211. an insertion end; 212. a fixed end; 22. an extension block; 23. bending the section; 24. mounting blocks; 25. a vertical section; 31. auxiliary guide holes; 32. a slot; 40. a locking arm; 41. a locking post; 42. a locking hole; 51. a positioning column; 52. and (7) positioning the holes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 5, an acoustic wave toothbrush motor includes a core body, the core body includes a bobbin 11, a front end cover 13 and a rear end cover 14 are respectively and fixedly installed at front and rear ends of the bobbin 11, a coil (not shown) is wound on the bobbin 11, and a U-shaped magnetizer 12 for magnetic force matching is disposed on the bobbin 11. The structure is used as a conventional structure of the sound wave toothbrush, when the sound wave toothbrush works, the coil is electrified, and the two ends of the sound wave toothbrush are mutually matched with the U-shaped magnetizer 12 to generate magnetic force, which belongs to a mature technical means and is not explained again.

A rotating bearing 15 is arranged on the front end cover 13, a rotating shaft 16 is arranged through the rotating bearing 15, the other end part of the rotating shaft 16 relative to the front end cover 13 extends into the coil rack 11, a magnet rod 17 is arranged in the coil rack 11, the magnet rod 17 and the rotating shaft 16 are fixed at one end part extending into the coil rack 11, an elastic sheet 21 is arranged between the magnet rod 17 and the rear end cover 14, one end of the elastic sheet 21 is fixedly arranged in the magnet rod 17 as a fixed end 212, the other end is inserted into the rear end cover 14 as an insertion end 211, the rear end cover 14 is internally provided with a slot 32 for the insertion end 211 of the elastic sheet 21 to be inserted and form circumferential limit with the insertion end 211, when the magnet rod 17 drives the fixed end 212 of the elastic sheet 21 to rotate circumferentially, the insertion end 211 of the elastic sheet 21 is limited by the slot 32 and cannot rotate circumferentially, and the elastic sheet 21 begins to deform from the fixed end 212 and generates a reset acting force for resetting itself; the rear cover 14 has an auxiliary guide hole 31 on a path of the insertion end 211 of the resilient tab 21 inserted into the slot 32, and the slot 32 is located at the end of the auxiliary guide hole 31. It should be noted that the fixed end 212 of the elastic sheet 21 can be inserted into the magnet rod 17 in a damping manner and synchronously rotate with the magnet rod 17; the insertion end 211 of the elastic sheet 21 is inserted into the slot 32 in a damping manner and is circumferentially limited by the slot 32, so that the fixed end 212 of the elastic sheet 21 rotates along with the magnet rod 17, and the insertion part is limited by the slot 32 and cannot rotate; the arrangement of the auxiliary guide hole 31 can effectively increase the length of the elastic sheet 21 to arrange space and reduce the torsion strength.

The elastic sheet 21 has elasticity and can be deformed by being stressed; the coil rack 11 can be electrified and is matched with the U-shaped magnetizer 12 to generate magnetic force, the magnetic force can drive the magnet rod 17 to rotate, the fixed end 212 of the elastic sheet 21 can start to twist from the fixed end 212 due to being fixed on the magnet rod 17, meanwhile, the insertion part of the elastic sheet 21 is limited by the slot 32, and at the moment, the elastic sheet 21 starts to deform from the fixed end 212 and always has the resetting trend; when the U-shaped magnetizer 12 demagnetizes, the elastic sheet 21 returns from the fixed end 212 by the self-reset acting force, and performs quick torsion reset, and meanwhile, the magnetic force at the other end of the U-shaped magnetizer 12 is matched, so that the rotating speed can be greatly increased, the vibration efficiency is improved, and an ideal cleaning effect is effectively achieved.

The structure of the elastic sheet 21 is specifically described as follows:

the two sides of the insertion end 211 of the elastic sheet 21 are fixedly provided with extension blocks 22, the extension blocks 22 can be inserted into the insertion slots 32 and form circumferential limit, each extension block 22 and the elastic sheet 21 are positioned on the same plane, and the other end of each extension block 22, which is opposite to the insertion end 211, is connected with the elastic sheet 21 through an inclined bending section 23;

the two sides of the fixed end 212 of the elastic sheet 21 are both fixedly provided with the mounting blocks 24, each mounting block 24 and the elastic sheet 21 are positioned on the same plane, and the other end of each mounting block 24 opposite to the fixed end 212 is connected with the elastic sheet 21 through a vertical section 25 perpendicular to the direction of the elastic sheet 21. Through the arrangement, the contact surface between the fixed end 212 and the insertion end 211 is effectively increased, and the assembly is more stable; meanwhile, the bent section 23 is convenient for guiding disassembly, and the vertical section 25 increases the reliability of fixation.

In addition, a plurality of locking columns 41 protruding outwards are arranged at the front end/rear end of the coil rack 11, locking holes 42 are formed in the front end cover 13 and the rear end cover 14 corresponding to the locking columns 41 at the front end/rear end of the coil rack 11, and the locking columns 41 are inserted into the corresponding locking holes 42 and fixed through riveting.

The front end/rear end of the coil rack 11 is provided with a plurality of positioning holes 52 which are recessed inwards, the front end cover 13 and the rear end cover 14 are provided with positioning columns 51 corresponding to the positioning holes 52, and the positioning holes 52 and the positioning columns 51 are matched for positioning, so that the locking columns 41 can be easily aligned and inserted into the corresponding locking holes 42.

Further, the front/rear ends of the coil frame 11 are respectively provided with locking arms 40 at both sides thereof, two locking posts 41 and a positioning hole 52 are fixedly provided on each locking arm 40, the two locking posts 41 are symmetrically arranged, and the positioning hole 52 is located at the symmetrical center of the two locking posts 41. Through the arrangement, the fixing reliability of the front end cover 13, the rear end cover 14 and the coil rack 11 can be effectively improved, the fixing coverage is ensured by the matching of the plurality of locking columns 41, the locking holes 42, the positioning columns 51 and the positioning holes 52, and the whole structure of the movement body is kept stable and firm under the long-term vibration working condition; meanwhile, the device has the advantage of convenience in assembly.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a sound wave toothbrush motor, includes the core body, the core body include coil former (11), coil former (11) around both ends and respectively fixed mounting have front end housing (13) and rear end cap (14), coil former (11) on the winding be provided with the coil, and be provided with on coil former (11) and carry out magnetic force complex U type magnetizer (12), its characterized in that:

the coil former is characterized in that the front end cover (13) is provided with a rotating bearing (15), a rotating shaft (16) penetrates through the rotating bearing (15), the other end of the rotating shaft (16) opposite to the front end cover (13) extends into the coil former (11), a magnet rod (17) is arranged in the coil former (11), the magnet rod (17) and one end of the rotating shaft (16) extending into the coil former (11) are fixed, an elastic sheet (21) is arranged between the magnet rod (17) and the rear end cover (14), one end of the elastic sheet (21) is fixedly arranged in the magnet rod (17) as a fixed end (212), the other end of the elastic sheet is inserted into the rear end cover (14) as an insertion end (211), a slot (32) for the insertion end (211) of the elastic sheet (21) to be inserted into and form circumferential limit with the insertion end (211) is arranged in the rear end cover (14), and when the magnet rod (17) drives the fixed end (212) of the elastic sheet (21) to, the insertion end (211) of the elastic sheet (21) is limited by the slot (32) and cannot rotate in the circumferential direction, and the elastic sheet (21) begins to deform from the fixed end (212) and generates a reset acting force for resetting itself; the rear end cover (14) is provided with an auxiliary guide hole (31) on a path that the insertion end (211) of the elastic sheet (21) is inserted into the slot (32), and the slot (32) is positioned at the tail end of the auxiliary guide hole (31).

2. A sonic toothbrush motor as defined in claim 1, wherein: the elastic piece (21) is characterized in that extension blocks (22) are fixedly arranged on two sides of an insertion end (211), the extension blocks (22) can be inserted into the insertion grooves (32) and are circumferentially limited, each extension block (22) and the elastic piece (21) are located on the same plane, and the other end, opposite to the insertion end (211), of each extension block (22) is connected with the elastic piece (21) through an inclined bending section (23).

3. A sonic toothbrush motor as defined in claim 1, wherein: the elastic piece is characterized in that mounting blocks (24) are fixedly arranged on two sides of a fixed end (212) of the elastic piece (21), each mounting block (24) and the elastic piece (21) are located on the same plane, and the other end, opposite to the fixed end (212), of each mounting block (24) is connected with the elastic piece (21) through a vertical section (25) perpendicular to the direction of the elastic piece (21).

4. A sonic toothbrush motor as defined in claim 1, wherein: the front end/rear end of coil former (11) all be provided with a plurality of outside convex locking post (41), front end housing (13) and rear end housing (14) each locking post (41) on corresponding front end/rear end of coil former (11) all seted up locking hole (42), each locking post (41) insert in corresponding locking hole (42) and fix through the riveting.

5. The sonic toothbrush motor of claim 4, wherein: the front end/rear end of the coil rack (11) is provided with a plurality of positioning holes (52) which are inwards recessed, positioning columns (51) are arranged on the front end cover (13) and the rear end cover (14) corresponding to the positioning holes (52), and the positioning holes (52) and the positioning columns (51) are matched for positioning, so that the locking columns (41) can be easily aligned and inserted into the corresponding locking holes (42).

6. A sonic toothbrush motor as claimed in claim 5, wherein: the two sides of the front end/the rear end of the coil rack (11) are respectively provided with a locking arm (40), each locking arm (40) is fixedly provided with two locking columns (41) and one positioning hole (52), the two locking columns (41) are symmetrically arranged, and the positioning hole (52) is positioned at the symmetrical center of the two locking columns (41).