CN218216919U

CN218216919U - Toothbrush sound wave motor

Info

Publication number: CN218216919U
Application number: CN202222197546.3U
Authority: CN
Inventors: 周万华
Original assignee: Wenzhou Wanghua Electric Appliance Technology Co ltd
Current assignee: Wenzhou Wanghua Electric Appliance Technology Co ltd
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2023-01-03
Anticipated expiration: 2032-08-19

Abstract

The utility model discloses a toothbrush sound wave motor, including the coil former that has the chamber of holding, both ends are provided with front end housing and rear end cap around the coil former, the winding is provided with the coil on the coil former, and be provided with the U-shaped magnetizer that carries out magnetic force fit on the coil former, be provided with the rotor subassembly in the chamber of holding of coil former, the one end of the rotor subassembly that is close to the front end housing is provided with the pivot, be provided with the through-hole that is used for the pivot to wear out in the front end housing, the one end that the rotor subassembly is close to the rear end cap is provided with the fastener, open in the rear end cap and supply the fastener to enter and constitute the slot of circumference spacing with it, be provided with the recess and the recess is located the one end that the rotor subassembly is close to the through-hole in the front end housing, the rotor subassembly has the bulge that is located in the recess and the bulge outer wall cover is equipped with the bearing, the bulge is made of plastic material, the bearing spacing is between recess and bulge; the utility model discloses can avoid appearing excessive wearing and tearing between pivot and the bearing, prolong bearing life.

Description

Toothbrush sound wave motor

Technical Field

The utility model relates to a sound wave toothbrush technical field especially relates to a toothbrush sound wave motor.

Background

The sound wave motor is an electromagnetic device for realizing electric energy conversion or transmission according to an electromagnetic induction law, mainly functions to generate driving torque, and can be used as a power source of electric appliances or various machines, such as an electric motor core of an electric toothbrush. After the sound wave motor is electrified, the sound wave motor can circularly move to generate high-frequency vibration under the control of the control circuit, and then the toothbrush head is driven to generate high-frequency vibration.

The bearing is directly established to traditional sound wave motor cover in the pivot, and pivot and bearing are the metal material, and the metal outer wall of pivot and the metal inner wall friction of bearing when the operation of sound wave motor get off to cause the bearing wearing and tearing serious for a long time, consequently has the improvement space.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a toothbrush sound wave motor.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a toothbrush sound wave motor, is including having the coil former that holds the chamber, the coil former around both ends be provided with front end housing and rear end cap, the coil former on the winding be provided with the coil, and be provided with on the coil former and carry out magnetic force fit's U-shaped magnetizer, the intracavity that holds of coil former is provided with the rotor subassembly, the one end that is close the front end housing of rotor subassembly is provided with the pivot, be provided with in the front end housing and be used for supplying the through-hole that the pivot was worn out, the one end that the rear end cap was close to the rotor subassembly is provided with the fastener, it gets into and constitutes the spacing slot of circumference rather than to have offered the fastener in the rear end cap, be provided with recess and recess in the front end housing and be located the one end that the rotor subassembly is close to the through-hole, the rotor subassembly has bulge and bulge outer wall cover that are located the recess and are equipped with the bearing, the bulge adopts plastic materials to make, the bearing is spacing between recess and bulge.

As a preferred technical scheme of the utility model, the rotor subassembly includes the working of plastics, the bulge sets up in the one end of working of plastics orientation front end cover and the integrative injection moulding of bulge and working of plastics.

As a preferred technical scheme of the utility model, the rotor subassembly still includes electrolytic plate and magnetite, the middle part of working of plastics is provided with the mounting groove that is used for placing the magnetite, the electrolytic plate symmetry sets up in the both sides of mounting groove, the both sides of electrolytic plate are provided with waist shape hole, the lateral wall of working of plastics corresponds waist shape hole position and is provided with waist shape piece.

As a preferred technical scheme of the utility model, the one end of fastener is as stiff end fixed mounting in the working of plastics, and the other end inserts to the slot of rear end cap as inserting the end in, the slot is a style of calligraphy and the both sides width of slot is greater than the width that inserts the end, the rear end cap is close working of plastics one side and is provided with spacing platform and is located the working of plastics below, there is the swing clearance between the lower terminal surface of working of plastics and the spacing platform.

As a preferred technical scheme of the utility model, be provided with the strengthening rib between fixture block and fixture block both sides and the rear end cap inner wall in the rear end cap, the slot is seted up in the fixture block intermediate position.

As a preferred technical scheme of the utility model, the all fixed installation pieces that are provided with in the end both sides of tearing open of fastener, each installation piece is in on the coplanar with the fastener, and links to each other through the vertical section that sets up the perpendicular to fastener direction between the other end of each installation piece relatively fixed end and the fastener.

As a preferred technical scheme of the utility model, the both sides terminal surface of coil former is provided with a plurality of projections, the mating holes has all been seted up to each projection on front end lid and the rear end lid correspond the front end/the rear end of coil former, projection and mating holes cooperation location.

To sum up, the beneficial effects of the utility model are that: traditional sound wave motor is direct to overlap in the pivot and establishes the bearing, pivot and bearing are the metal material, the metal outer wall of pivot and the metal inner wall friction of bearing when the operation of sound wave motor, it is serious to get off to cause bearing wear for a long time, reduce bearing life, this application sets up the bearing on the bulge of rotor subassembly, the bulge contact that bearing and plastic material made when the rotor subassembly swings, the plastic material has certain plasticity, compare in the metal material, the pivot vibrations in-process bearing inner race wearing and tearing are not serious, prolong the life of bearing.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is an exploded view of the present embodiment;

FIG. 3 is a schematic view of the structure of the card member in the present embodiment;

FIG. 4 is a schematic structural view of the rear end cap in the present embodiment;

FIG. 5 is a sectional view of the present embodiment;

fig. 6 is an enlarged view of a portion a of fig. 5.

Reference numerals are as follows: 1. a bobbin; 2. a front end cap; 3. a rear end cap; 4. a U-shaped magnetizer; 5. a rotor assembly; 6. a rotating shaft; 7. a through hole; 8. a fastener; 9. inserting slots; 10. a groove; 11. a bearing; 12. a projection; 13. a plastic part; 14. an electrolytic plate; 15. a waist-shaped hole; 16. a waist-shaped block; 17. a fixed end; 18. an insertion end; 19. a clamping block; 20. reinforcing ribs; 21. mounting a block; 22. a vertical section; 23. a mating hole; 24. a convex column; 25. and a limiting platform.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1 to 6, a toothbrush sound wave motor includes a coil rack 1 having a containing cavity, a front end cap 2 and a rear end cap 3 are disposed at front and rear ends of the coil rack 1, a coil (not shown) is wound on the coil rack 1, and a U-shaped magnetizer 4 for magnetic force matching is disposed on the coil rack 1.

The intracavity that holds of coil former 1 is provided with rotor subassembly 5, the one end that is close to front end housing 2 of rotor subassembly 5 is provided with pivot 6, be provided with the through-hole 7 that is used for supplying pivot 6 to wear out in the front end housing 2, the one end that rotor subassembly 5 is close rear end housing 3 is provided with fastener 8, it supplies fastener 8 to get into and constitute the spacing slot 9 of circumference rather than having seted up in the rear end housing 3, be provided with recess 10 and recess 10 in the front end housing 2 and be located the one end that through-hole 7 is close rotor subassembly 5, rotor subassembly 5 has bulge 12 and the 12 outer wall cover of bulge that is located recess 10 and is equipped with bearing 11, bulge 12 adopts plastic materials to make, bearing 11 is spacing between recess 10 and bulge 12, U-shaped magnetizer 4 is the silicon steel sheet in this implementation.

Traditional sound wave motor is direct to establish bearing 11 at pivot 6 upper cover, pivot 6 and bearing 11 are the metal material, the metal outer wall of pivot 6 rubs with bearing 11's metal inner wall during the operation of sound wave motor, it is serious to get off to cause bearing 11 wearing and tearing for a long time, reduce bearing 11 life, this application sets up bearing 11 on rotor subassembly 5's bulge 12, bearing 11 contacts with bulge 12 that plastic materials made when rotor subassembly 5 swings, the plastic material has certain plasticity, compare in the metal material, 11 inner circles wearing and tearing of pivot 6 vibrations in-process bearing are not serious, prolong bearing 11's life, reduce the wearing and tearing of 11 inner circles of bearing, prolong bearing 11's life.

The rotor assembly 5 includes a plastic member 13, the protruding portion 12 is disposed at one end of the plastic member 13 facing the front end cap 2, and the protruding portion 12 and the plastic member 13 are integrally injection-molded, in this embodiment, the plastic material is nylon sheet 6.

Rotor subassembly 5 still includes electrolysis board 14 and magnetite (not shown in the figure), the middle part of working of plastics 13 is provided with the mounting groove that is used for placing the magnetite, electrolysis board 14 symmetry sets up in the both sides of mounting groove, electrolysis board 14's both sides are provided with waist shape hole 15, the lateral wall of working of plastics 13 corresponds waist shape hole 15 position and is provided with waist-shaped piece 16, waist-shaped hole 15 of electrolysis board 14 in this embodiment and the cooperation of waist-shaped piece 16 of working of plastics 13, then it is fixed to bond through glue, the installation is more stable, can not control the swing and eat the glue and cause electrolysis board 14 to drop.

One end of the clamping piece 8 is fixedly installed in the plastic piece 13 as a fixed end 17, the other end of the clamping piece 8 is inserted into the slot 9 of the rear end cover 3 as an insertion end 18, the slot 9 is in a straight shape, the width of the two sides of the slot 9 is larger than that of the insertion end 18, one side, close to the plastic piece 13, of the rear end cover 3 is provided with a limiting platform 25, the limiting platform 25 is located below the plastic piece 13, a swing gap exists between the lower end face of the plastic piece 13 and the limiting platform 25, the clamping piece 8 is made of stainless steel in the embodiment, the rotation angle of the clamping piece 8 is limited by the slot 9, the clamping piece 8 can deform due to excessive torque, and the clamping groove is in limiting failure of the clamping piece 8, so that the limiting platform 25 is arranged, the swing gap exists between the limiting platform 25 and the lower portion of the plastic piece 13, the swing angle of the plastic piece 13 can be limited, and the clamping piece 8 and the limiting platform 25 are arranged to achieve double limiting effects.

Be provided with fixture block 19 in the rear end cap 3 and be provided with strengthening rib 20 between fixture block 19 both sides and the 3 inner walls of rear end cap, slot 9 is seted up in fixture block 19 intermediate position, sets up strengthening rib 20 and improves fixture block 19's intensity, avoids warping.

The two sides of the detaching end of the clamping piece 8 are fixedly provided with mounting blocks 21, each mounting block 21 and the clamping piece 8 are positioned on the same plane, and the other end of the fixed end 17 of each mounting block 21 is connected with the clamping piece 8 through a vertical section 22 perpendicular to the direction of the clamping piece 8.

The both sides terminal surface of coil former 1 is provided with a plurality of projections 24, and each projection 24 on front end/the rear end that front end housing 2 and rear end cap 3 correspond coil former 1 has all seted up mating holes 23, and projection 24 and mating holes 23 cooperation location, projection 24 and mating holes 23 cooperation location adopt above-mentioned structural installation more convenient, firm.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only the preferred embodiments of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention, which is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a toothbrush sound wave motor, is including having the coil former that holds the chamber, the coil former around both ends be provided with front end housing and rear end cap, the coil former on the winding be provided with the coil, and be provided with on the coil former and carry out magnetic force fit's U-shaped magnetizer, the intracavity that holds of coil former is provided with the rotor subassembly, the one end that is close the front end housing of rotor subassembly is provided with the pivot, be provided with in the front end housing and be used for supplying the through-hole that the pivot was worn out, the one end that the rotor subassembly is close the rear end cap is provided with the fastener, it supplies the fastener to get into and constitutes the spacing slot of circumference rather than having seted up in the rear end cap, its characterized in that: the motor rotor assembly is characterized in that a groove is formed in the front end cover and is located at one end, close to the rotor assembly, of the through hole, the rotor assembly is provided with a protruding portion located in the groove, the outer wall of the protruding portion is sleeved with a bearing, the protruding portion is made of a plastic material, and the bearing is limited between the groove and the protruding portion.

2. The toothbrush acoustic motor defined in claim 1 wherein: the rotor subassembly includes the working of plastics, the bulge sets up in the working of plastics towards the integrative injection moulding of one end of front end cover and bulge and working of plastics.

3. The toothbrush acoustic motor defined in claim 2 wherein: the rotor subassembly still includes electrolysis board and magnetite, the middle part of working of plastics is provided with the mounting groove that is used for placing the magnetite, the electrolysis board symmetry sets up in the both sides of mounting groove, the both sides of electrolysis board are provided with waist shape hole, the lateral wall of working of plastics corresponds waist shape hole position and is provided with waist shape piece.

4. The toothbrush acoustic motor defined in claim 2 wherein: the one end of fastener is as stiff end fixed mounting in the working of plastics, and the other end inserts to the slot of rear end cap as inserting the end, the slot is a style of calligraphy and the both sides width of slot is greater than the width that inserts the end, the rear end cap is close working of plastics one side and is provided with spacing platform and is located the working of plastics below, there is the swing clearance between the lower terminal surface of working of plastics and the spacing platform.

5. The toothbrush acoustic motor defined in claim 4 wherein: a fixture block is arranged in the rear end cover, reinforcing ribs are arranged between two sides of the fixture block and the inner wall of the rear end cover, and the slot is formed in the middle of the fixture block.

6. The toothbrush acoustic motor defined in claim 4 wherein: the clamping piece is characterized in that mounting blocks are fixedly arranged on two sides of the dismounting end of the clamping piece, each mounting block and the clamping piece are located on the same plane, and the other end of the relative fixed end of each mounting block is connected with the clamping piece through a vertical section perpendicular to the direction of the clamping piece.

7. The toothbrush acoustic motor defined in claim 1 wherein: the two side end faces of the coil rack are provided with a plurality of convex columns, the front end cover and the rear end cover are provided with matching holes corresponding to the convex columns on the front end/the rear end of the coil rack, and the convex columns are matched with the matching holes for positioning.