CN113180867A

CN113180867A - Main unit component and electric toothbrush

Info

Publication number: CN113180867A
Application number: CN202110499307.0A
Authority: CN
Inventors: 吴奎; 金祖涛
Original assignee: Guangdong Genius Technology Co Ltd
Current assignee: Guangdong Genius Technology Co Ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-07-30
Anticipated expiration: 2041-05-08
Also published as: CN113180867B

Abstract

The invention discloses a main machine component and an electric toothbrush. The main housing has a port section. The driving part comprises a motor and an elastic shaft which is connected with the motor in a driving way. The motor is assembled in the main shell, and the elastic shaft extends to the outer side of the main shell through the port part. The vibrating rod comprises a first supporting rod assembled at the port part and a second supporting rod assembled at the free end of the first supporting rod through a flexible vibration damper, and a cavity for assembling the elastic shaft is formed in the first supporting rod and the second supporting rod together. The free end of the elastic shaft is assembled with an eccentric block, the eccentric block comprises an integrated counterweight part and a rotating shaft, the counterweight part is assembled on one side of the elastic shaft, and the weight of one side of the elastic shaft, on which the counterweight part is assembled, is greater than that of the other opposite side of the elastic shaft; the rotating shaft is opposite to the free end of the elastic shaft and is coaxially arranged with the elastic shaft; and the bottom of the cavity is provided with a slotted hole for the rotating shaft to be inserted and rotated. The user experience can be comprehensively improved by the aid of the setting.

Description

Main unit component and electric toothbrush

Technical Field

The invention relates to the technical field of electric toothbrushes, in particular to a main machine component and an electric toothbrush.

Background

With the continuous progress of technology, electric toothbrushes are replacing ordinary manual toothbrushes because of their higher cleaning ability. The ordinary toothbrush depends on the strength of an individual when the toothbrush is used in the using process, the randomness is high, the direction of brushing teeth cannot be well mastered, and the situation that the cleanliness of teeth is not high can be caused. The electric toothbrush can adjust the strength according to the degree of the requirement of the electric toothbrush, and the angle which needs to be mastered when brushing teeth, and the design is more scientific and humanized. And the brush head adopted in the design of the electric toothbrush is smaller, so that gaps between teeth or places which can not be cleaned by the common toothbrush can be well cleaned, thereby improving the degree of cleaning the teeth when people use the toothbrush and improving the use feeling of people.

At present, electric toothbrushes on the market mostly use sound wave cleaning as a main part, but the electric toothbrushes are limited by the overlarge size of a sound wave motor, so that the outer diameter of a brush holder of the toothbrush is larger, and uncomfortable experience of the handle can be brought to users with small hands, such as children. The eccentric vibration electric toothbrush can solve the problem, the used rotating motor is diversified in specification, a proper motor can be selected according to requirements, and the toothbrush is made to be small and exquisite. As such, eccentric vibrating electric toothbrushes are in high consumer interest. However, the existing electric toothbrush on the market often has poor waterproof capability, especially the problem that the motor position is easy to water to cause short circuit failure of the host machine, and the vibration of the brush head is too strong, so that the vibration is transmitted to the brush handle, and meanwhile, larger noise can be generated, so that the use experience of a user is influenced to a great extent, and the service life of the electric toothbrush is shortened.

Therefore, it is a problem to be solved by those skilled in the art that how to effectively overcome many defects of the conventional electric toothbrush, such as poor waterproof performance, large vibration amplitude of the brush handle during brushing teeth, and large noise, so as to prolong the service life of the electric toothbrush and improve the user experience.

Disclosure of Invention

The invention aims to provide a main machine component and an electric toothbrush, wherein vibration generated by an eccentric block in the rotating process can be concentrated at one end of a brush head component, and meanwhile, a flexible vibration damping part can effectively prevent the vibration from being transmitted to the main machine component, so that the loss of vibration quantity is avoided, the comfort when the main machine component is held is improved, the noise can be effectively reduced, and the user experience is comprehensively improved.

The technical scheme provided by the invention is as follows:

the present invention provides in a first aspect a host component comprising:

a main housing having a port portion;

the driving piece comprises a motor and an elastic shaft which is connected with the motor in a driving way;

the motor is assembled in the main shell, and the elastic shaft extends to the outer side of the main shell through the port part;

the vibrating rod comprises a first supporting rod assembled at the port part and a second supporting rod assembled at the free end of the first supporting rod through a flexible damping piece; the first support rod and the second support rod together form a cavity for assembling the elastic shaft;

wherein, the free end of the elastic shaft is assembled with an eccentric block;

the eccentric block comprises an integrated counterweight part and a rotating shaft, the counterweight part is assembled on one side of the elastic shaft, and the weight of one side of the elastic shaft, on which the counterweight part is assembled, is greater than that of the other side of the elastic shaft; and

the rotating shaft is right opposite to the free end of the elastic shaft and is coaxially arranged with the elastic shaft; and

the bottom of the cavity is provided with a slotted hole for the rotating shaft to be inserted and rotated.

In this patent, an eccentric block is assembled through the free end at the elastic shaft, and will cup joint the setting of the vibrating arm on the elastic shaft and be bipartition formula structure, and connect split type first branch and second branch through setting up a flexible damping piece. So, under the effect of flexible damping piece, can ensure that eccentric block can concentrate on the one end of brushing the head component in the produced vibration of rotation in-process, both can guarantee the vibration volume of brushing the head component, make brush the head component can clean the tooth more high-efficiently, and simultaneously, flexible damping piece can effectively block again and vibrate the transmission to the host computer component, with the loss of avoiding the vibration volume and the comfort that improves when holding the host computer component, and can also effectively reduce the noise, the all-round promotion user experience. Further, in this patent, set up the weight of one side through having the elastic shaft equipment with the counterweight and be greater than the weight of its relative opposite side, so can reach eccentric effect, when motor drive elastic shaft pivoted in-process, the eccentric block can reach the effect of vibration because of off-centre. And the bottom of the cavity is provided with a slotted hole for the rotating shaft to be inserted and rotated, so that the eccentric block can stably rotate, and the noise is reduced.

Further preferably, the weight member includes an abutting portion and a mounting portion which are coaxially provided;

the abutting part is of a disc-shaped structure, and the mounting part is of a semi-cylindrical structure;

an eccentric groove is formed between the mounting part and the abutting part;

the eccentric groove is provided with a groove bottom surface and a groove side surface which are vertically arranged; and

the free end of the elastic shaft is provided with a butt joint part which extends towards the direction of the motor and is matched with the eccentric groove;

the butt joint part is provided with a butt joint side face in butt joint with the groove side face and a butt joint end face in butt joint with the groove bottom face;

the butt joint side surface is provided with a limiting rib extending to the outer side of the butt joint end surface along the axial direction of the elastic shaft; the side surface of the groove is provided with a limit groove matched with the limit rib, and the limit groove extends to the inner side of the abutting part; and

one end of the installation part, which is back to the abutting part, is provided with a limiting bulge, and one end of the abutting part, which faces the motor, is provided with a limiting concave part matched with the limiting bulge;

the eccentric block is fixed with the elastic shaft through the insertion and embedding matching of the limiting rib and the limiting groove and the insertion and embedding matching of the limiting protrusion and the limiting concave part.

Further preferably, the first strut has a connecting end for abutting the port section;

the connecting end abuts against the inner wall of the port part; and

a butting table is formed between the connecting end and the rest part of the first supporting rod and is used for butting the opening of the port part; wherein,

a soft rubber part is arranged between the abutting table and the port part opening; and

at least one first sealing ring is arranged between the connecting end and the inner wall of the port part.

Further preferably, the method further comprises the following steps:

the wireless charging device comprises a rear cover, a middle frame, a PCB, a battery, a wireless charging module and a switch key, wherein the PCB, the battery, the wireless charging module and the switch key are electrically connected with each other;

the motor is electrically connected to the PCB;

the rear cover is detachably assembled at one end of the main shell, which is back to the port part, the middle frame, the PCB, the battery and the wireless charging module are all arranged in the main shell, and the switch key is arranged on the main shell;

the middle frame is used for fixing the PCB, the battery, the wireless charging module and the motor.

Further preferably, one end of the first supporting rod, which is opposite to the second supporting rod, is fixed on the middle frame.

Further preferably, the switch key comprises an indicator light assembly and a button which are electrically connected to the PCB board; a soft rubber layer is sleeved on the inner wall surface of the main shell and corresponds to the positions of the indicator light assembly and the button; and/or at least one second sealing ring is arranged at the contact position of the rear cover and the main shell.

Preferably, an accommodating groove is formed in one end, facing the rear cover, of the middle frame, and the wireless charging module is buckled in the accommodating groove; the outer wall surface of the accommodating groove is provided with one of a buckle and a clamping groove, the inner wall surface of the main shell is provided with the other of the buckle and the clamping groove which are oppositely matched, and the middle frame is assembled in the main shell in a buckling and matching mode through the buckle and the clamping groove; and/or a motor fixing piece is further arranged on one side of the motor, which is back to the middle frame, and the motor fixing piece is used for locking the motor on the middle frame.

Further preferably, the periphery of the motor is provided with a vibration damping soft rubber sleeve for abutting against the inner wall surface of the main shell; and/or one end of the motor back to the elastic shaft is provided with a vibration reduction soft rubber pad used for abutting against the middle frame; and/or the battery is provided with a vibration damping foam pad used for abutting against the inner wall surface of the main shell; and/or light leakage prevention soft glue is arranged between the indicating lamp assembly and the PCB.

The present invention also provides in a second aspect an electric toothbrush comprising:

a brush head member;

the above-described host member;

wherein the brush head member comprises a handle and a brush head;

one end of the brush handle is used for assembling the brush head, and the other end opposite to the brush handle is used for butting a vibrating rod of the host machine component.

Preferably, the brush handle is made of soft rubber; and

the brush handle comprises a brush handle body and a mounting part for assembling the brush head; and

the brush holder body is provided with an interface piece for butting the vibrating rod.

The invention has the technical effects that:

1. in this patent, an eccentric block is assembled through the free end at the elastic shaft, and will cup joint the setting of the vibrating arm on the elastic shaft and be bipartition formula structure, and connect split type first branch and second branch through setting up a flexible damping piece. So, under the effect of flexible damping piece, can ensure that eccentric block can concentrate on the one end of brushing the head component in the produced vibration of rotation in-process, both can guarantee the vibration volume of brushing the head component, make brush the head component can clean the tooth more high-efficiently, and simultaneously, flexible damping piece can effectively block again and vibrate the transmission to the host computer component, with the loss of avoiding the vibration volume and the comfort that improves when holding the host computer component, and can also effectively reduce the noise, the all-round promotion user experience.

2. In this patent, the weight through the one side that has the elastic shaft equipment with the counterweight sets up to be greater than the weight of its relative opposite side, so can reach eccentric effect, and when motor drive elastic shaft pivoted in-process, eccentric block can reach the effect of vibration because of the eccentricity.

3. In this patent, through being equipped with the confession pivot in the bottom of cavity and inserting and establish and the pivoted slotted hole, so can make the eccentric block can steadily rotate, reduce the noise.

4. In this patent, the motor passes through the elastic shaft with eccentric block and is connected, and the elastic shaft can reduce the hard impact of eccentric block to the motor at to a great extent, and then can protect the motor to the life of extension motor and noise reduction.

5. In this patent, through being equipped with a flexible glue spare between butt platform and port portion opening, and be equipped with at least one first sealing washer and can strengthen the water-proof effects of port portion between link and port portion inner wall.

6. In this patent, through the internal face at the main casing body, and the position cover beer that just corresponds pilot lamp subassembly and button has a soft glue film, so, under the effect of blockking of soft glue film, outside water can not follow the gap infiltration entering main unit component inside of pilot lamp subassembly and button edge. And the button can be directly bonded on the soft rubber layer, so that the installation is convenient and the practicability is high.

7. In this patent, through be equipped with an at least second sealing washer in the position that back lid and main casing body contacted, so, can prevent effectively that external water from inside the lid infiltration gets into the host computer component after through.

8. In this patent, the lock joint cooperation form that the center passes through buckle and draw-in groove is assembled in the main casing, so can ensure effectively that even inside violent vibration of host computer component, the center also can not take place easily not hard up and break away from in the main casing even.

9. In this patent, through cup jointed the soft gum cover of damping that is used for main casing internal face of butt on the motor, so, the motor is at the in-process of operation, and the vibration major part that its self produced can be absorbed by the soft gum cover of damping, causes to transmit to the main casing on the sense of shaking very weak, and noise reduction. And be provided with the soft cushion of damping that is used for the butt center at the motor one end back to the elastic shaft, so, can reduce sense of vibration and noise from horizontal and vertical two dimensions, promote user's the experience of gripping.

10. In this patent, through be provided with the cotton pad of damping bubble that is used for main casing internal face of butt on the battery, can effectively reduce the vibration sense of battery, ensure that the battery can not receive the damage, effectively prolong its life.

Drawings

The invention is described in further detail below with reference to the following figures and detailed description:

FIG. 1 is a schematic view of the construction of an electric toothbrush of the present invention;

FIG. 2 is an exploded perspective view of the host member shown in FIG. 1;

FIG. 3 is a cut-away view of the host member shown in FIG. 1;

FIG. 4 is a schematic view illustrating an assembled structure of the elastic shaft and the eccentric mass shown in FIG. 3;

FIG. 5 is a schematic structural view of the eccentric mass shown in FIG. 4;

FIG. 6 is a schematic view of the construction of the elastic shaft shown in FIG. 4;

fig. 7 is an exploded perspective view of the brushhead member of fig. 1.

The reference numbers illustrate:

an electric toothbrush 10; a host member 100; a main housing 110; a port portion 111; a soft adhesive layer 112; a buckle 113; a drive member 120; a motor 121; a motor mount 1211; an elastic shaft 122; a butt 1221; a butt side 1222; a butt end face 1223; limit ribs 1224; a limiting recess 1225; a vibrating rod 130; a first strut 131; a connection end 1311; an abutment stage 13111; a second strut 132; a flexible vibration damping member 133; a cavity 134;

the slot 1341; a soft rubber member 135; a first seal ring 136; an eccentric mass 140; a weight member 141; a rotating shaft 142; an abutting portion 143; a mounting portion 144; a limit projection 1441; an eccentric groove 145; slot bottom surface 1451; a slot side 1452; a limit groove 1453; a rear cover 210; a second seal ring 211; a rear cover fixing portion 212; a middle frame 220; a receiving groove 221; a card slot 2211; a PCB board 230; a battery 240; a wireless charging module 250; a switch button 260; an indicator light assembly 261; a button 262; a vibration damping soft rubber sleeve 271; a vibration damping soft rubber pad 272; a vibration damping foam pad 273; light leakage prevention soft glue 274; a brush head member 300; a brush handle 310; a brush holder body 311; a brush head mounting portion 312; a first brush head mounting portion 3121; a second brush head mounting portion 3122; an interface 313; a brush head 320; a first brush head 321; a second brush head 322.

Detailed Description

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

According to an embodiment of the present invention, as shown in fig. 1 to 6, the present invention provides a main unit member 100 in a first aspect, which includes a main housing 110, a driving member 120 and a vibration rod 130. The main housing 110 has a port portion 111. The driving member 120 includes a motor 121 and a flexible shaft 122 drivingly connected to the motor 121. The motor 121 is assembled in the main housing 110, and the elastic shaft 122 extends to the outside of the main housing 110 through the port 111. The vibration rod 130 includes a first rod 131 assembled to the port portion 111 and a second rod 132 assembled to a free end of the first rod 131 through a flexible vibration damper 133. The first and

second struts

131, 132 together define a cavity 134 for assembling the flexible shaft 122. Wherein, an eccentric block 140 is assembled at the free end of the elastic shaft 122, and the eccentric block 140 comprises an integrated weight member 141 and a rotating shaft 142. The weight member 141 is assembled to one side of the elastic shaft 122, and the weight of one side of the elastic shaft 122 where the weight member 141 is assembled is greater than the weight of the other side. And the rotating shaft 142 is opposite to the free end of the elastic shaft 122 and is coaxially arranged with the elastic shaft 122. And the bottom of the cavity 134 is provided with a slot 1341 for the rotation shaft 142 to be inserted and rotated.

In this patent, an eccentric block 140 is assembled at the free end of the elastic shaft 122, and the vibration rod 130 sleeved on the elastic shaft 122 is arranged to be a two-body structure, and a flexible vibration damping member 133 is arranged to connect the first and second split struts 131 and 132. Thus, under the effect of flexible vibration damper 133, can ensure that eccentric block 140 can concentrate on the one end of brushing first component 300 in the produced vibration of rotation in-process, both can guarantee the vibration volume of brushing first component 300, make brush first component 300 can clean the tooth more high-efficiently, and simultaneously, flexible vibration damper 133 can effectively block again and vibrate the transmission to host computer component 100, with the loss of avoiding the vibration volume and the comfort that improves when holding host computer component 100, and can also effectively reduce the noise, the comprehensive promotion user experience. Further, in this patent, the weight of one side of the elastic shaft 122 assembled with the weight member 141 is set to be greater than the weight of the other side thereof, so that the eccentric effect is achieved, and when the motor 121 drives the elastic shaft 122 to rotate, the eccentric mass 140 can achieve the vibration effect due to the eccentricity. And the bottom of the cavity 134 is provided with a slot 1341 for the rotating shaft 142 to be inserted and rotated, so that the eccentric block 140 can rotate stably, and the noise is reduced.

The present invention also provides in a second aspect a power toothbrush 10, the power toothbrush 10 comprising a brushhead member 300 and a main body member 100 as described above. Specifically, referring to fig. 7, the head member 300 may include a handle 310 and a head 320. One end of the handle 310 is used to assemble the brush head 320, and the opposite end of the handle 310 is used to interface with the vibrating shaft 130 of the host member 100. As a preferred scheme, brush holder 310 is made by the flexible glue material, through establishing brush holder 310 as soft structure, can play the collision that slows down vibration and slow down with the internal skeleton of oral cavity to a great extent, promotes user's use and experiences.

Specifically, the handle 310 may include a handle body 311 and a head mounting portion 312 for assembling the head 320. Because the brush holder body 311 is a flexible tube structure, a fixing groove matched with the contour of the vibrating rod 130 can be formed in the brush holder body 311 for the vibrating rod 130 to be inserted therein. The specific contour of the fixing groove is not limited, and may be specifically set according to the actual application scenario, and only needs to be ensured to be matched with the contour of the vibrating rod 130. The fixing grooves may preferably extend to both ends of the brush holder body 311 in the longitudinal direction and may not penetrate the free end of the brush holder body 311. Thus, the vibrating rod 130 can be completely inserted into the whole area inside the brush holder body 311, and can support the brush holder body 311 and provide the brush holder body 311 with vibrating force during brushing. Preferably, in order to facilitate smooth insertion and removal of the vibration lever 130, the vibration lever 130 may have a truncated cone shape, that is, a diameter of the vibration lever 130 gradually decreases as it extends toward the outside of the main housing 110, but the invention is not limited thereto. As a preferred example of this embodiment, the head mounting portion 312 may include a first head mounting portion 3121 and a second head mounting portion 3122. And the brush head 320 may include a first brush head 321 and a second brush head 322. The first brush head 321 and the second brush head 322 are assembled in the first brush head mounting portion 3121 and the second brush head mounting portion 3122, respectively. In this embodiment, the first brush head 321 and the second brush head 322 can be symmetrically disposed along the axis of the brush handle 310 and closely disposed at an angle, so as to reduce the space occupied by the brush heads to a great extent, and make the structure more compact to match the oral cavity size and the tooth structure of various people.

Further, in this embodiment, with reference to fig. 7, one end of the brush holder body 311 for connecting to the vibrating rod 130 is a connecting portion, and since the brush holder body 311 is flexible, in order to ensure that the connecting portion can be stably connected to the vibrating rod 130, an interface 313 may be disposed on the connecting portion, and the interface 313 is made of a hard glue material. And the combination of the interface 313 and the handle body 311 may be in the form of a beer-over, welding, bonding, etc., without being limited thereto. The interface 313 serves to fix with the host member 100. Preferably, a locking part may be provided at the joint of the vibration rod 130 and the interface 313 for limiting the position of the two, and preventing the two from being easily loosened or even separated. Specifically, the main body member 100 and the brush head member 300 are engaged by inserting the interface member 313 into the vibration rod 130 and rotating it a small amount to achieve fixation.

It is worth mentioning that, because the electric toothbrush 10 is configured to be ergonomic, the transverse cross-section of the main housing 110 is much larger than that of the handle body 311, i.e., the diameter of the main housing 110 is much larger than that of the handle body 311. Therefore, in order to make the joint between main housing 110 and handle body 311 beautiful and make it possible to make a streamlined and smooth transition between the two, interface 313 may be made to be similar to a horn shape, so that when the free end of interface 313 abuts against port 111, the calibers of the two ends are equal, and the contour of the outer surface of interface 313 and the contour of the outer surface of port 111 may be adapted, but not limited thereto. In the present embodiment, the specific configuration of the interface 313 may not be limited.

It should be noted that, in the process that the handle 310 extends from the main body 110 toward the brush head 320, the aperture of the handle gradually decreases, so that the handle can more smoothly extend into the oral cavity, the diaphragm sensing to the oral cavity is effectively reduced, and the use experience can be further improved.

Further, in the present embodiment, the vibration rod 130 is hollow inside for the elastic shaft 122 to be inserted therein to provide a sufficient vibration force to the brush head member 300. Specifically, referring to fig. 2 and 3, the vibration rod 130 may include a first rod 131 assembled to the port portion 111 and a second rod 132 assembled to a free end of the first rod 131 through a flexible vibration damping member 133, the first rod 131 and the second rod 132 together forming a cavity 134 for assembling the elastic shaft 122 therein.

It should be noted that, referring to fig. 2 and 3, the flexible damping member 133 may be a flexible damping rubber in the form of a connection tube, and the outer end surface thereof is connected to the surface region of the first support rod 131 and the second support rod 132. The first support rod 131, the second support rod 132 and the flexible vibration damping member 133 are coaxially arranged and are butted end to form a vibration rod 130 which is long rod-shaped and has a smooth surface layer. Preferably, the flexible vibration damping member 133 can be assembled between the first strut 131 and the second strut 132 by bonding or fixing by a sleeve beer, but the patent does not limit the fixing form of the flexible vibration damping member 133, and any means that can be used to fix the flexible vibration damping member 133 to the two struts is within the scope of the patent. And because the first strut 131 and the second strut 132 are rigid structures and the flexible vibration damping member 133 is a soft structure, the first strut 131 and the second strut 132 can be in flexible transmission connection through the flexible vibration damping member 133. Under the effect of flexible damping piece 133, can ensure that eccentric block 140 can concentrate on the one end of brushing first component 300 in the produced vibration of rotation in-process, both can guarantee the vibration volume of brushing first component 300, make brush first component 300 can clean the tooth more high-efficiently, and simultaneously, flexible damping piece 133 can effectively block again and vibrate the transmission to host computer component 100, with the loss of avoiding the vibration volume and the comfort that improves the user when holding host computer component 100, and can also effectively reduce the noise, the whole aspect promotes the use and experiences.

Further, in this embodiment, referring to fig. 2 and 3, the first rod 131 has a connecting end 1311 for abutting the port portion 111, and the connecting end 1311 abuts against the inner wall of the port portion 111 and is adapted to the contour of the inner wall of the port portion 111. So that its fixation to the main housing 110 can be achieved. Specifically, the diameter of the connecting end 1311 is larger than the diameter of the rest of the first strut 131, so that an abutting table 13111 is formed between the connecting end 1311 and the rest of the first strut 131 for abutting against the inner side of the opening of the port 111.

Further, a soft rubber 135 matched with the contour of the abutment table 13111 may be disposed between the abutment table 13111 and the opening of the port portion 111, and the longitudinal cross section of the soft rubber 135 may be L-shaped, so that it may completely form a transverse and longitudinal gap between the abutment table 13111 and the opening to interfere with the region where the first supporting rod 131 and the port portion 111 of the main housing 110 are abutted, thereby achieving double waterproofing of the transverse and longitudinal directions. The interference between the pair of the soft rubber members 135 is greater than or equal to 0.2 mm and less than or equal to 0.5 mm, but not limited thereto. And at least one first sealing ring 136 may be disposed between the outer wall surface of the connecting end 1311 and the inner wall surface of the port portion 111, the first sealing ring 136 and the two wall surfaces are in interference fit, and an interference amount between the first sealing ring 136 and the two wall surfaces is greater than or equal to 0.1 mm and less than or equal to 0.5 mm, but is not limited thereto.

It should be noted that the number of the first sealing rings 136 is preferably two, which can achieve the effect of double sealing between two wall surfaces, but the specific number can be specifically increased or decreased according to the actual application scenario. Thus, based on the above arrangement, the port 111 can effectively prevent the water for brushing teeth from penetrating into the main body member 100 from the port 111 under the dual actions of the soft rubber 135 and the first sealing ring 136. And the soft rubber piece 135 and the first sealing ring 136 can also play a role in damping vibration, so that the vibration transmitted to the main housing 110 by the first supporting rod 131 is reduced.

Further, in this embodiment, referring to fig. 2 and 3, the vibration generated by the eccentric mass 140 during the rotation process can be concentrated at one end of the brush head member 300, so that the eccentric effect can be achieved, and the eccentric mass 140 can achieve the vibration effect due to the eccentricity during the rotation process of the elastic shaft 122 driven by the motor 121. So both can guarantee the vibration volume of brush head component 300 for brush head component 300 can clean the tooth more high-efficiently, simultaneously, flexible damping piece 133 can effectively block again and vibrate the transmission to host computer component 100, with the loss of avoiding the vibration volume and the comfort that improves when holding host computer component 100, and can also effectively reduce the noise, the whole aspect promotes user experience. That is to say, this patent is through the cooperation of eccentric piece 140 and flexible damping 133 to can promote user's use experience greatly in the aspect of the sense of vibration and falling the noise.

It is worth mentioning that, in this technical scheme, the elastic shaft 122 is selected to be assembled at the driving end of the motor 121, and based on that the motor 121 drives the elastic shaft 122 to rotate, the elastic shaft 122 can flexibly rotate under the action of its own elastic force, so that the hard impact of the eccentric block 140 on the motor 121 can be reduced to a great extent, and then the motor 121 can be protected, so as to prolong the service life of the motor 121 and reduce noise.

Specifically, as a preferred example, referring to fig. 4 to 6, the weight member 141 of the eccentric mass 140 may include an abutting portion 143 and a mounting portion 144, which are coaxially disposed. The abutting portion 143 may have a disc-shaped structure, the mounting portion 144 may have a semi-cylindrical structure, and the outer diameters of the abutting portion 143 and the mounting portion 144 are preferably equal to each other, but the invention is not limited thereto. The rotating shaft 142 is located at one end of the abutting portion 143 opposite to the mounting portion 144. And an eccentric groove 145 is formed between the mounting part 144 and the abutting part 143, and the contour of the eccentric groove 145 is consistent with that of the mounting part 144 and is also in a semi-cylindrical groove body structure. Further, eccentric groove 145 has a groove bottom surface 1451 and a groove side surface 1452 that are vertically disposed, and groove bottom surface 1451 has a semicircular end surface and groove side surface 1452 has a rectangular end surface. And the free end of the elastic shaft 122 is provided with a butt-joint part 1221 which extends towards the motor 121 and is matched with the eccentric groove 145. The abutting portion 1221 has an abutting side surface 1222 abutting the groove side surface 1452 and an abutting end surface 1223 abutting the groove bottom surface 1451. Thus, after the abutting portion 1221 is assembled in the eccentric slot 145, the abutting portion 1221 can directly abut against the mounting portion 144, and at this time, the outer wall arc surface of the mounting portion 144 and the outer wall surface of the elastic shaft 122 are engaged with each other to form a whole. In this embodiment, the weight of one side of the elastic shaft 122 assembled with the weight 141 is set to be greater than the weight of the other side thereof, so as to achieve the eccentric effect, and when the motor 121 drives the elastic shaft 122 to rotate, the eccentric mass 140 can achieve the vibration effect due to the eccentricity. That is, the eccentric mass 140 is assembled to the free end of the elastic shaft 122 in order to ensure that the weight of the free end is not uniform, thereby achieving the eccentric vibration effect. Therefore, any component capable of achieving the above eccentric vibration effect is within the protection scope of the present patent, and is not limited to the structure of the eccentric block 140, and will not be described in detail herein.

Further, as a further optimization of the above example, the abutting side 1222 is provided with a limiting rib 1224 extending to the outside of the abutting end surface 1223 along the axial direction of the elastic shaft 122, and the limiting rib 1224 may preferably be a round bar structure, but is not limited thereto. The groove side 1452 is provided with a limit groove 1453 fitted with the limit rib 1224, and the limit groove 1453 extends to the inner side of the abutting portion 143. Thus, after the limiting ribs 1224 are engaged with the limiting grooves 1453, the free ends of the limiting ribs 1224 are inserted into the abutting portions 143 to achieve the initial fixation of the elastic shaft 122 and the eccentric block 140. Further, a limiting protrusion 1441 is disposed at an end of the mounting portion 144 opposite to the abutting portion 143, and a limiting recess 1225 adapted to the limiting protrusion 1441 is disposed at an end of the abutting portion 1221 facing the motor 121. In this way, the final fixation of the elastic shaft 122 and the eccentric block 140 can be achieved by the insertion fitting of the limit protrusion 1441 and the limit recess 1225.

In this embodiment, referring to fig. 3, the bottom of the cavity 134 is further provided with a slot 1341 for the rotation shaft 142 to be inserted into and rotate, so that the eccentric block 140 can rotate smoothly along the axial direction of the elastic shaft 122, noise is reduced, and a more comfortable vibration feeling is provided for the user during brushing teeth.

In this embodiment, referring to fig. 2 and 3, the host member 100 may further include a rear cover 210, a middle frame 220, and a PCB 230, a battery 240, a wireless charging module 250, and a switch button 260 electrically connected to each other. And the motor 121 is also electrically connected to the PCB 230.

The rear cover 210 is detachably assembled to an end of the main housing 110 opposite to the port 111, and at least one second sealing ring 211 is disposed at a position where the rear cover 210 contacts the main housing 110. Specifically, the rear cover 210 has a rear cover fixing portion 212 extending into the main housing 110 to be in abutting engagement with the inner wall of the main housing 110, the rear cover fixing portion 212 may be a soft rubber plug structure, and the second sealing ring 211 may be sleeved on the rear cover fixing portion 212 and abut against the inner wall of the main housing 110, so as to effectively prevent external water from penetrating into the main housing 100 through the rear cover 210. As a further optimization of this embodiment, the number of the second sealing rings 211 may be two, and in order to effectively prevent the second sealing rings 211 from easily moving on the back cover fixing portion 212, thereby affecting the waterproof effect, ring grooves matching the position and number of the second sealing rings 211 may be formed on the back cover fixing portion 212, for fixing the second sealing rings 211, but not limited thereto. It should be noted that the interference between the second sealing ring 211 and the back cover fixing part 212 and the inner wall of the main housing 110 is greater than or equal to 0.1 mm and less than or equal to 0.4 mm, but not limited thereto.

Further, referring to fig. 2 and 3, the middle frame 220, the PCB 230, the battery 240 and the wireless charging module 250 are disposed in the main housing 110, and the switch button 260 is disposed on the main housing 110. The middle frame 220 is used for fixing the PCB 230, the battery 240, the wireless charging module 250 and the motor 121.

Specifically, the middle frame 220 is provided with a motor accommodating portion corresponding to the position of the motor 121, the motor accommodating portion is adapted to the contour of the motor 121, after the motor 121 is assembled in the motor accommodating portion, a motor fixing member 1211 is further provided on a side of the motor 121 opposite to the middle frame 220, the motor fixing member 1211 is also in a cover plate-shaped structure adapted to the contour of the wall surface of the motor 121, and the motor fixing member 1211 can lock the motor 121 in the motor accommodating portion of the middle frame 220 by a screw.

Further, the assembly of the PCB 230 can be realized only by fastening the edge of the PCB 230 to the middle frame 220. In order to prevent the PCB 230 from easily loosening or even falling off the middle frame 220 during the shaking of the host component 100, one or more screws may be added to strengthen the fixation of the PCB 230 after the PCB 230 is fastened to the middle frame 220. Based on the sheet-like structure of the PCB 230, the PCB 230 may be preferably configured as a strip shape to match the inner contour of the main housing 110. Preferably, the PCB 230 is fixed to the middle frame 220 at a position corresponding to the inner wall surface of the main housing 110, so as to facilitate the installation of the battery 240 and the driving member 120. Thus, the battery 240 and the driving member 120 are located on the same straight line, so that when the host member 100 is held by a user, the stress is uniform at each position, the situation of local overweight or overweight is avoided, and the holding feeling of the user is improved.

Further, referring to fig. 3, an end of first strut 131 facing away from second strut 132, that is, connection end 1311 of first strut 131, is fixed to an end of middle frame 220 facing port portion 111. Thus, the fixation of the vibration rod 130 can be strengthened to ensure that the vibration rod 130 can be more stably abutted against the elastic shaft 122.

Further, referring to fig. 2, an accommodating groove 221 is disposed at an end of the middle frame 220 facing the rear cover 210, and the wireless charging module 250 is fastened in the accommodating groove 221 through the fastener 113, so as to receive and fix the wireless charging module 250 and prevent the wireless charging module from being damaged due to direct exposure to the outside. The wireless charging module 250 is used to charge the battery 240, so that the battery 240 can be preferentially arranged adjacent to the rear cover 210, and can be conveniently connected with the wireless charging module 250, so as to ensure the smoothness of power transmission and achieve better charging effect. It should be noted that the battery 240 may be assembled on the middle frame 220 by double-sided adhesive and the fastener 113. And the motor 121 may be preferentially disposed adjacent to the port portion 111 to facilitate the elastic shaft 122 to extend to the outside of the main housing 110 through the port portion 111.

Further, the outer wall surface of the receiving groove 221 of the middle frame 220 is provided with one of the buckle 113 and the slot 2211, the inner wall surface of the main housing 110 is provided with the other of the buckle 113 and the slot 2211 which are relatively matched, and the middle frame 220 is assembled in the main housing 110 by the buckling and matching of the buckle 113 and the slot 2211. Thus, after all components are assembled on the middle frame 220, the formed movement can be directly inserted into the main housing 110 from one end of the main housing 110 facing the rear cover 210 and is buckled in the main housing 110 to realize the fixation, and the rear cover 210 can also be provided with a buckle to be buckled with the main housing 110 to realize the sealing of the main housing 110.

It should be noted that, the present embodiment does not limit the specific outline of the middle frame 220, and can be specifically set according to the actual use requirement. In order to make the arrangement of the components in the main housing 110 compact and save space, the overall contour of the middle frame 220 may be configured to match the interior of the main housing 110. Thus, when the middle frame 220 is assembled in the main housing 110, the stability is stronger and the shaking does not occur due to the abutting of the inner wall of the main housing 110, so that the stability of the PCB 230, the battery 240, the wireless charging module 250 and the motor 121 fixed thereon is also stronger. The switch button 260 extends to the outside of the main housing 110 for a user to touch, and the specific profile thereof is not limited and can be specifically set according to actual use requirements.

As a further optimization of this embodiment, the switch button 260 may not be limited to controlling the on/off of the driving element 120, but may also be used to adjust the frequency of the driving element 120, so as to expand the application range of the host component 100 and meet various requirements of users. Referring to fig. 2, the switch button 260 may include an indicator lamp assembly 261 and a button 262 electrically connected to the PCB 230. In this embodiment, a soft adhesive layer 112 may be formed on the inner wall surface of the main housing 110 at positions corresponding to the indicator assembly 261 and the button 262, and the soft adhesive layer 112 may be integrated with the inner wall surface of the main housing 110 through a process of casting. Thus, under the blocking action of the soft gel layer 112, external water may not permeate into the interior of the host member 100 from the gap between the edges of the indicator light assembly 261 and the button 262. And the button 262 can be directly bonded on the soft glue layer 112, so that the installation is convenient and the practicability is strong. Further, in this embodiment, a light leakage prevention soft rubber 274 is further disposed between the indicator light assembly 261 and the PCB 230, and the light leakage prevention soft rubber 274 can prevent a light emitting source in the indicator light assembly 261 from side light leakage on the one hand, and on the other hand, the soft rubber material of the light leakage prevention soft rubber 274 can also be used for vibration reduction to protect the indicator light assembly 261 and the PCB 230.

In this embodiment, referring to fig. 2 and 3, the motor 121 is sleeved with a vibration damping soft rubber sleeve 271 for abutting against the inner wall surface of the main housing 110, so that most of the vibration generated by the motor 121 during the operation process is absorbed by the vibration damping soft rubber sleeve 271, so that the vibration transmitted to the main housing 110 is weak, the noise is reduced, and the holding experience of the user is improved. Preferably, the damping rubber sleeve 271 can be sleeved on the motor fixing 1211 and the middle frame 220 at the same time. So that the damping rubber boot 271 can directly act on the inner wall surface of the main casing 110. In this embodiment, the length of the damping rubber sleeve 271 can be specifically set according to the actual use scenario, and it can cover the entire outer wall surface of the motor 121, and can also cover a part of the outer wall surface of the motor 121, all within the protection scope of this patent. Of course, the damping rubber sleeve 271 can also act on the area where the motor 121 and the elastic shaft 122 abut to reduce the vibration at this position.

Further, in this embodiment, one end of the motor 121 opposite to the elastic shaft 122 is further provided with a soft damping rubber pad 272 for abutting against the middle frame 220. Thus, the vibration and noise of the motor 121 can be further reduced.

That is, the vibration damping soft rubber sleeve 271 damps vibration and reduces noise from the lateral direction of the motor 121, and the vibration damping soft rubber pad 272 damps vibration and reduces noise from the axial direction of the motor 121. By acting on the two spatial dimensions of the motor 121, the comfort of the user can be increased to a large extent.

Further, in this embodiment, the battery 240 is also provided with a vibration damping foam pad 273 for abutting against the inner wall surface of the main housing 110, so that the vibration sense of the battery 240 can be effectively reduced, the battery 240 is ensured not to be damaged, and the service life of the battery is effectively prolonged.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A host component, comprising:

a main housing having a port portion;

2. The host component of claim 1,

the counterweight part comprises a butting part and a mounting part which are coaxially arranged;

an eccentric groove is formed between the mounting part and the abutting part;

3. The host component of claim 1,

the first support rod is provided with a connecting end for butting the port part;

the connecting end abuts against the inner wall of the port part; and

4. The host component of any one of claims 1-3, further comprising:

the motor is electrically connected to the PCB;

5. The host component of claim 4,

one end of the first supporting rod back to the second supporting rod is fixed on the middle frame.

6. The host component of claim 4,

the switch key comprises an indicator light assembly and a button which are electrically connected to the PCB;

a soft rubber layer is sleeved on the inner wall surface of the main shell and corresponds to the positions of the indicator light assembly and the button;

and/or at least one second sealing ring is arranged at the contact position of the rear cover and the main shell.

7. The host component of claim 4,

one end of the middle frame facing the rear cover is provided with an accommodating groove, and the wireless charging module is buckled in the accommodating groove; the outer wall surface of the accommodating groove is provided with one of a buckle and a clamping groove, the inner wall surface of the main shell is provided with the other of the buckle and the clamping groove which are oppositely matched, and the middle frame is assembled in the main shell in a buckling and matching mode through the buckle and the clamping groove; and/or

One side of the motor, which is back to the middle frame, is also provided with a motor fixing piece, and the motor fixing piece is used for locking the motor on the middle frame.

8. The host component of claim 6,

the periphery of the motor is provided with a vibration reduction soft rubber sleeve used for abutting against the inner wall surface of the main shell;

and/or one end of the motor back to the elastic shaft is provided with a vibration reduction soft rubber pad used for abutting against the middle frame;

and/or the battery is provided with a vibration damping foam pad used for abutting against the inner wall surface of the main shell;

and/or light leakage prevention soft glue is arranged between the indicating lamp assembly and the PCB.

9. An electric toothbrush, comprising:

a brush head member;

the host component of any one of claims 1-8;

wherein the brush head member comprises a handle and a brush head;

10. The electric toothbrush of claim 9,

the brush handle is made of a soft rubber material; and