CN215273521U

CN215273521U - Simple driving mechanism, electric toothbrush handle and electric toothbrush

Info

Publication number: CN215273521U
Application number: CN202023002813.4U
Authority: CN
Inventors: 黄拔梓; 黄道臣; 朱学仕; 李金志
Original assignee: Shenzhen Lebond Technology Co ltd
Current assignee: Shenzhen Lebond Technology Co ltd
Priority date: 2020-05-22
Filing date: 2020-12-14
Publication date: 2021-12-24
Anticipated expiration: 2030-12-14
Also published as: CN214679079U; CN112713735A; CN214679080U; CN112713735B

Abstract

The utility model provides a simple and easy actuating mechanism, electric toothbrush handle and electric toothbrush, simple and easy actuating mechanism includes the stator frame, rotor frame and output shaft, stator frame connects in electric toothbrush's support, rotor frame sets up with the stator frame interval, the rotor frame includes first shell fragment, second shell fragment and magnetic part, first shell fragment is including connecting in the connecting portion of magnetic part upper end, connect in connecting portion and roughly left end portion that extends left and connect in connecting portion and roughly right-hand member portion that extends right, left end portion and right-hand member portion can dismantle respectively and connect in the upper end of support, the second shell fragment is connected in the lower extreme of magnetic part and the lower extreme of support, output shaft connection is in the magnetic part, the stator frame can exert magnetic force to the magnetic part, drive the output shaft with drive magnetic part and vibrate. The output shaft of the simple driving mechanism is connected with the support through the first elastic sheet and the second elastic sheet, a shell for supporting the stator frame and the rotor frame is omitted, and the number of assembling parts of the electric toothbrush is reduced.

Description

Simple driving mechanism, electric toothbrush handle and electric toothbrush

The utility model discloses require to submit the priority of the chinese patent application of national intellectual property office, application number 202020884951.0, application name "simple and easy actuating mechanism, toothbrush seat and electric toothbrush" in 2020, 05 month 22, its whole content is incorporated by reference in the utility model.

Technical Field

The utility model belongs to the technical field of the articles for washing one's face and rinsing one's mouth, especially, relate to a simple and easy actuating mechanism, electric toothbrush handle and electric toothbrush.

Background

Along with the more and more high attention degree of people to oral hygiene, electric toothbrush's use is more and more popularized, and electric toothbrush makes the brush head produce high frequency vibrations through the quick rotation or the vibrations of core in the simple and easy actuating mechanism, decomposes into the fine foam with toothpaste in the twinkling of an eye, goes deep into clean slit between the teeth, and meanwhile, the blood circulation of oral cavity can be promoted to the vibrations of brush hair, has the massage effect to gum tissue.

The simple driving mechanism of the electric toothbrush generally comprises a shell, a stator coil connected to the shell, a bearing connected to the shell and a rotor connected to the bearing, wherein the rotor is rotatably connected with the shell through the bearing, the stator coil exerts magnetic force on the rotor after being electrified so as to enable the rotor to rotate, and therefore the output shaft connected to the simple driving mechanism is driven to vibrate, but the rotor needs to drive the bearing to rotate to do work when moving, and the power of the rotor is consumed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple and easy actuating mechanism, electric toothbrush handle and electric toothbrush, need drive the bearing and rotate the technical problem who does work, has consumed the power of rotor when aiming at solving among the prior art rotor motion.

The utility model is realized in such a way, in a first aspect, a simple driving mechanism is provided, which is characterized in that the simple driving mechanism comprises a stator frame, a rotor frame and an output shaft, the stator frame is connected with a bracket of the electric toothbrush, the rotor frame is arranged at an interval with the stator frame, the rotor frame comprises a first spring plate, a second spring plate and a magnetic part arranged opposite to the stator frame, the first spring plate comprises a connecting part connected with the upper end of the magnetic part, a left end part connected with the connecting part and extending roughly leftwards and a right end part connected with the connecting part and extending roughly rightwards, the left end part and the right end part are respectively detachably connected with the upper end of the bracket, the second spring plate is connected with the lower end of the magnetic part and the lower end of the bracket, the output shaft is connected with the magnetic part and extends upwards, the first elastic sheet and the second elastic sheet can elastically deform, and the stator frame can apply magnetic force to the magnetic part to drive the output shaft to vibrate.

In one embodiment, the output shaft is spaced from the bracket and the stator frame.

In one embodiment, the rotor frame further includes a third resilient piece connected between the first resilient piece and the second resilient piece, and the third resilient piece is connected to the magnetic member.

In one embodiment, the left end portion extends to right left, the right end portion extends to right, and the left end portion, the right end portion and the connecting portion together form a T-shape.

In one embodiment, the left end portion extends to the left upper side, the right end portion extends to the right upper side, and the left end portion, the right end portion and the connecting portion together form a Y shape.

In one embodiment, the bracket has two positioning portions at an upper end thereof, each positioning portion has a positioning slot, the left end portion and the right end portion are connected to one positioning slot and surround with the positioning portion to form a spacing hole, and the output shaft is inserted through the spacing hole and spaced from a hole wall of the spacing hole.

In one embodiment, the left end and the right end are respectively screwed with the positioning groove through screws.

In one embodiment, the left end and the right end are respectively inserted into one of the positioning slots.

In a second aspect, the present invention provides an electric toothbrush handle, which comprises a support and a simple driving mechanism, wherein the support is provided with an accommodating groove, and the stator frame is accommodated in the accommodating groove.

In a third aspect, the present invention provides an electric toothbrush, which comprises a toothbrush head and an electric toothbrush handle as described above, wherein the toothbrush head is connected to the output shaft.

The utility model discloses technical effect for prior art is: the output shaft of the simple driving mechanism is connected with the support through the first elastic sheet and the second elastic sheet, the stator frame and the rotor frame do not need to be assembled independently, and a shell for supporting the stator frame and the rotor frame is omitted. Simultaneously, the connecting portion of first shell fragment are connected with the left end portion that extends left and the right-hand member portion that extends right, and first shell fragment is connected through left end portion and right-hand member portion and support and is realized fixing, has improved first shell fragment and leg joint's stability, has also increased the elastic restoring force of first shell fragment, has reduced the influence of the vibration of magnetic part to first shell fragment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective structural view of a simple driving mechanism provided in an embodiment of the present invention;

fig. 2 is a perspective view of the electric toothbrush handle according to the embodiment of the present invention, wherein the housing is not shown;

fig. 3 is an exploded view of an electric toothbrush handle according to an embodiment of the present invention.

Description of reference numerals:

100. a simple driving mechanism; 10. a stator frame; 11. a fixing member; 12. a silicon steel sheet; 20. a rotor frame; 21. A magnetic member; 22. a first spring plate; 221. a connecting portion; 222. a left end portion; 223. a right end portion; 23. a second elastic sheet; 30. an output shaft; 40. a shield case; 50. a support; 501. an accommodating groove; 51. a rack main body; 52. a positioning part; 520. positioning a groove; 521. avoiding holes; 53. a second limiting plate; 61. a battery; 62. a circuit board; 621. a button; 63. a connecting frame; 64. a waterproof ring; 65. a rear cover; 651. a rubber ring; 66. a housing.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "top", "bottom", "inner", "outer", and the like refer to orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

Referring to fig. 1 and 3, the present invention provides a simple driving mechanism 100, which can be applied to an electric toothbrush or other devices requiring vibration energy output. Taking the electric toothbrush as an example, the electric toothbrush at least comprises a housing 66, a toothbrush head and a bracket 50 arranged in the housing 66 and used for connecting internal structures. The housing 66 has a receiving cavity, and the support 50 and the simple driving mechanism 100 are disposed in the receiving cavity.

Referring to fig. 1 and 3, the simple driving mechanism 100 includes a stator frame 10 connected to a bracket 50, a rotor frame 20 spaced apart from the stator frame 10, and an output shaft 30 connected to the rotor frame 20, the rotor frame 20 includes a first resilient sheet 22, a second resilient sheet 23, and a magnetic member 21 disposed opposite to the stator frame 10, the first resilient sheet 22 includes a connecting portion 221 connected to an upper end of the magnetic member 21, a left end portion 222 connected to the connecting portion 221 and extending substantially leftward, and a right end portion 223 connected to the connecting portion 221 and extending substantially rightward, the left end portion 222 and the right end portion 223 are detachably connected to an upper end of the bracket 50, the second resilient sheet 23 is connected to a lower end of the magnetic member 21 and a lower end of the bracket 50, the output shaft 30 is connected to the magnetic member 21 and extends upward, the first resilient sheet 22 and the second resilient sheet 23 can elastically deform, the stator frame 10 can apply a magnetic force to the magnetic member 21, so as to drive the magnetic member 21 to drive the output shaft 30 to vibrate. Output shaft 30 and the integrative injection moulding of magnetic part 21 and with the equal interval setting of support 50 and stator frame 10, magnetic part 21 can be dismantled and connect in the third shell fragment, output shaft 30 is used for connecting the toothbrush head. Stator frame 10 can exert magnetic force to magnetic part 21 to the motion of drive magnetic part 21, thereby makes first shell fragment 22 and second shell fragment 23 take place elastic deformation, and first shell fragment 22 and second shell fragment 23 can exert elastic restoring force to magnetic part 21, thereby makes magnetic part 21 produce the vibration effect, and then drives the vibration of output shaft 30, and output shaft 30 drives the toothbrush head vibration, in order to clean the tooth.

Referring to fig. 1, alternatively, the left end portion 222 extends right to the left, the right end portion 223 extends right to the right, and the left end portion 222, the right end portion 223 and the connecting portion 221 form a T shape together. The T-shaped structure enhances the stability of the connection part 221 with the bracket 50.

Alternatively, the left end 222 extends upward to the left, the right end 223 extends upward to the right, and the left end 222, the right end 223, and the connection portion 221 together form a Y-shape. The Y-shaped structure improves the elastic restoring force when the first elastic piece 22 is elastically deformed, and improves the mechanical strength for the vibration of the output shaft 30.

In order to improve the connection stability between the first elastic sheet 22 and the magnetic member 21, the rotor frame 20 further includes a third elastic sheet connected between the first elastic sheet 22 and the second elastic sheet 23, that is, the first elastic sheet 22 and the second elastic sheet 23 are respectively connected to two ends of the third elastic sheet, and the third elastic sheet and the magnetic member 21 are integrally injection-molded to prevent the first elastic sheet 22 and the second elastic sheet 23 from being separated from the magnetic member 21. In the embodiment, the first elastic piece 22, the second elastic piece 23 and the third elastic piece are integrally formed.

It should be noted that the above-mentioned injection molding is rubber coating injection molding, the magnetic member 21 is clamped on the rubber coating, and the first elastic sheet 22, the second elastic sheet 23 and the third elastic sheet are all metal elastic sheets. The magnetic member 21 may be magnetic steel, a magnet, or an alloy made of a magnetic material, and in this embodiment, the magnetic member 21 is magnetic steel.

Through with first shell fragment 22 and second shell fragment 23 and output shaft 30 integrative injection moulding, saved and set up fixed knot structure between magnetic part 21 and output shaft 30, be convenient for processing and equipment. The output shaft 30 is fixedly connected with the magnetic part 21 through rubber coating and injection molding, and is arranged at intervals with the bracket 50 and the stator frame 10, so that the arrangement of a bearing is omitted, the power consumption is reduced, the mechanical performance of the rotor frame 20 is improved, and meanwhile, the noise caused by the abrasion of the bearing is eliminated. The output shaft 30 of the simple driving mechanism 100 is connected with the bracket 50 through the first elastic sheet 22 and the second elastic sheet 23, and the stator frame 10 and the rotor frame 20 do not need to be assembled separately, so that the shell 66 for supporting the stator frame 10 and the rotor frame 20 is omitted, therefore, the electric toothbrush reduces the number of assembling parts, the tolerance accumulation during assembling is reduced, the volume in the accommodating cavity is greatly saved, the assembling is convenient, and the processing cost is saved. Meanwhile, the connecting portion 221 of the first elastic sheet 22 is connected with the left end portion 222 extending leftwards and the right end portion 223 extending rightwards, the first elastic sheet 22 is connected with the support 50 through the left end portion 222 and the right end portion 223 to achieve fixing, the stability of connection of the first elastic sheet 22 and the support 50 is improved, the elastic restoring force of the first elastic sheet 22 is also increased, and the influence of vibration of the magnetic piece 21 on the first elastic sheet 22 is reduced.

Referring to fig. 3, the stator frame 10 includes a fixing member 11 connected to the bracket 50, a silicon steel sheet 12 formed by injection molding with the fixing member 11, and a stator coil wrapped around the silicon steel sheet 12, wherein the stator coil can drive the magnetic member 21 to move by electromagnetic induction to drive the output shaft 30 to vibrate. The cross sections of the fixing member 11 and the silicon steel sheet 12 are both C-shaped and are annularly arranged on the circumference of the magnetic member 21 to enhance the magnetic force generated by the stator coil through electromagnetic induction. The magnetic member 21 is spaced from the stator coil to avoid the stator coil from restricting its movement. The fixing member 11 can position the silicon steel sheet 12 by directly connecting with the bracket 50, and the first elastic sheet 22 and the second elastic sheet 23 are directly connected with the bracket 50, so that the casing 66 provided with the simple driving mechanism 100 is omitted, the inner space of the accommodating cavity is saved, and the casing 66 of the electric toothbrush can be more miniaturized. It should be noted that the above movement may be a change of a magnetic field by controlling a current direction of the stator coil to generate a reciprocating movement of the magnetic member 21, thereby driving the output shaft 30 to vibrate. In the present embodiment, the magnetic members 21 are provided in two, and the two magnetic members 21 are symmetrically provided, so that the vibration of the rotor frame 20 is equalized and the vibration effect of the output shaft 30 is enhanced. Preferably, the fixing member 11 is also a silicon steel sheet 12 to reduce the processing cost. In this embodiment, the fixing member 11 is clipped to the bracket 50 for easy assembly.

Referring to fig. 1, the simple driving mechanism 100 further includes a shielding cover 40 integrally injection-molded with the magnetic member 21, and the shielding cover 40 is used for shielding the magnetic signal emitted from the magnetic member 21. The two shielding cases 40 are arranged in parallel, and the two magnetic members 21 are located between the two shielding cases 40, so that the shielding cases 40 can shield the magnetic signals emitted by the magnetic members 21 outwards, and the magnetic members 21 are prevented from being interfered by other magnetic signals or electric signals.

The embodiment of the present invention further provides an electric toothbrush handle, which comprises a support 50 and the simple driving mechanism 100 mentioned in the above embodiments. The simple driving mechanism 100 has the same structure and the same function as the simple driving mechanism 100 in the above embodiments, and is not described herein again.

Referring to fig. 2 and 3, in particular, the bracket 50 has a receiving groove 501, and the stator frame 10 is received in the receiving groove 501 to connect the stator frame 10 and the bracket 50. Specifically, the bracket 50 includes a bracket body 51, a first limiting plate and a second limiting plate 53, and the first limiting plate and the second limiting plate 53 are both connected to the bracket body 51 and form an accommodating groove 501 with the bracket body 51.

Referring to fig. 3, the bracket 50 has a positioning portion 52 at an upper end thereof, specifically, the first position limiting plate has two positioning portions 52, each positioning portion 52 has a positioning slot 520, the two positioning portions 52 are disposed at an interval, the left end portion 222 and the right end portion 223 are connected to the positioning slots 520 and surround the positioning portions 52 together to form an avoiding hole 521, and the output shaft 30 penetrates through the avoiding hole 521 and is disposed at an interval with a hole wall of the avoiding hole 521. The output shaft 30 is disposed through the avoiding hole 521 and spaced apart from the wall of the avoiding hole 521. The accommodating groove 501 is used for limiting the simple stator driving mechanism 100, the two positioning grooves 520 are used for limiting the positions of the first elastic sheet 22 and the second elastic sheet 23, and the position-avoiding hole 521 is used for limiting the displacement of the output shaft 30.

Referring to fig. 3, the left end portion 222 and the right end portion 223 are alternatively screwed with a positioning groove 520 by screws. One screw is inserted through the left end portion 222 and screwed with the positioning groove 520 to fix the left end portion 222 to the positioning portion 52, and the other screw is inserted through the right end portion 223 and screwed with the positioning groove 520 to fix the right end portion 223 to the positioning portion 52.

Optionally, the left end portion 222 and the right end portion 223 are respectively inserted into a positioning groove 520. The left end portion 222 and the right end portion 223 are connected with the positioning portion 52 by plugging, so that the use of an external connecting piece is omitted, the components of the electric toothbrush are simplified, and the assembly is convenient.

For realizing being connected of simple and easy actuating mechanism 100 of stator and support 50, support 50 still includes the stopper of locating second limiting plate 53 towards one side of first limiting plate, and 11 joints of mounting are in the stopper. Specifically, the fixing element 11 is inserted between the limiting block and the bottom of the accommodating groove 501 to limit the fixing element 11 from being separated from the accommodating groove 501. Wherein, the stopper can be equipped with a plurality ofly.

The embodiment of the utility model provides an electric toothbrush is still provided, and this electric toothbrush includes the electric toothbrush handle that mentions in above-mentioned each embodiment, and this electric toothbrush handle is the same with the electric toothbrush handle structure in above-mentioned each embodiment, and the effect is also the same, and here is not repeated.

Referring to fig. 2 and 3, in the present embodiment, the electric toothbrush further includes a toothbrush head, a battery 61, a circuit board 62, a connecting frame 63, and a waterproof ring 64. The battery 61 and the circuit board 62 are fixed on the bracket 50, the battery 61 and the circuit board 62 are both electrically connected to the stator coil on the stator frame 10, specifically, the battery 61 is clamped to the bracket 50 and located outside the receiving slot 501, the circuit board 62 is connected to a side of the bracket 50 opposite to the notch of the receiving slot 501, the battery 61 is used for supplying power to the circuit board 62 and the simple driving mechanism 100, and the circuit board 62 is used for controlling the output power and the vibration mode of the simple driving mechanism 100. For the convenience of operation of a user, the bracket 50 is wrapped by a casing 66, and the battery 61, the circuit board 62, the connecting frame 63 and the waterproof ring 64 are all located in the accommodating cavity of the casing 66. The casing 66 is provided with a button 621 electrically connected to the circuit board 62, and a user switches the simple driving mechanism 100 or switches the vibration mode and output power of the simple driving mechanism 100 by controlling the button 621. The connecting frame 63 is connected to the bracket 50, the waterproof ring 64 is connected to the connecting frame 63 and elastically sleeved on the output shaft 30, and the waterproof ring 64 is located between the toothbrush head and the shell 66 and hermetically connected with the output shaft 30 through elastic force to prevent liquid from entering the accommodating cavity along the output shaft 30. The waterproof ring 64 is a rubber ring. The below of casing 66 still is equipped with the back lid 65 of joint in support 50, is equipped with between back lid 65 and the casing 66 to be used for waterproof rubber circle.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A simple driving mechanism is characterized by comprising a stator frame, a rotor frame and an output shaft, wherein the stator frame is connected with a support of an electric toothbrush, the rotor frame and the stator frame are arranged at intervals, the rotor frame comprises a first elastic sheet, a second elastic sheet and a magnetic part arranged opposite to the stator frame, the first elastic sheet comprises a connecting part connected with the upper end of the magnetic part, a left end part connected with the connecting part and extending leftwards approximately and a right end part connected with the connecting part and extending rightwards approximately, the left end part and the right end part are respectively detachably connected with the upper end of the support, the second elastic sheet is connected with the lower end of the magnetic part and the lower end of the support, the output shaft is connected with the magnetic part and extends upwards, and the first elastic sheet and the second elastic sheet can generate elastic deformation, the stator frame can apply magnetic force to the magnetic part to drive the output shaft to vibrate.

2. The simplified drive mechanism as set forth in claim 1 wherein said output shaft is spaced from said support and said stator frame.

3. The simple driving mechanism as claimed in claim 1, wherein the rotor frame further includes a third resilient piece connected between the first resilient piece and the second resilient piece, and the third resilient piece is connected to the magnetic member.

4. The simplified drive mechanism according to claim 1, wherein the left end portion extends right to the left, the right end portion extends right, and the left end portion, the right end portion, and the connecting portion together form a T-shape.

5. The simplified drive mechanism as set forth in claim 1 wherein said left end extends upwardly and leftwardly and said right end extends upwardly and rightwardly, said left end, said right end and said connecting portion together forming a Y-shape.

6. An electric toothbrush handle, characterized in that it comprises a support and a simple drive mechanism according to any one of claims 1 to 5, the support having a housing slot in which the stator frame is housed.

7. The electric toothbrush handle as claimed in claim 6, wherein the bracket has two positioning portions at an upper end thereof, each positioning portion has a positioning slot, the left end portion and the right end portion are connected to one positioning slot and surround the positioning portion to form a spacing hole, and the output shaft is inserted through the spacing hole and spaced from a hole wall of the spacing hole.

8. The electric toothbrush handle according to claim 7, wherein the left end portion and the right end portion are respectively screwed with one of the positioning grooves by screws.

9. The electric toothbrush handle of claim 7, wherein the left end portion and the right end portion are each inserted into one of the positioning grooves.

10. An electric toothbrush comprising a brush head and an electric toothbrush handle as claimed in any of claims 6 to 9, the brush head being connected to the output shaft.