CN113180867A - Main unit component and electric toothbrush - Google Patents

Abstract

The patent of the present invention discloses a host component and an electric toothbrush. The host component includes a main casing, a driving part and a vibrating rod. The main housing has a port portion. The driving member includes a motor and an elastic shaft drivingly connected to the motor. The motor is assembled in the main casing, and the elastic shaft extends to the outside of the main casing through the port portion. The vibration rod includes a first support rod assembled at the port portion and a second support rod assembled at the free end of the first support rod through a flexible damping member, and a cavity for assembling the elastic shaft is formed in the first support rod and the second support rod. body. The free end of the elastic shaft is assembled with an eccentric block, and the eccentric block includes an integrated counterweight and a rotating shaft, the counterweight is assembled on one side of the elastic shaft, and the weight of the side of the elastic shaft assembled with the counterweight is greater than The weight relative to the other side; and the rotating shaft is facing the free end of the elastic shaft, and is arranged coaxially with the elastic shaft; and the bottom of the cavity is provided with a slot hole for the rotating shaft to be inserted and rotated. The above settings can improve the user experience in all aspects.

Description

Host components and electric toothbrush

technical field

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

Background technique

With the continuous advancement of technology, electric toothbrushes are gradually replacing ordinary manual toothbrushes because of their better cleaning ability. In the process of using ordinary toothbrushes, it is more dependent on the strength of the individual when using the toothbrush, and it is more arbitrary, and it is impossible to grasp the direction of brushing well, which will cause the teeth to be not clean. The electric toothbrush can adjust the strength according to your own needs, as well as the angle you need to master when brushing your teeth. This design is also more scientific and user-friendly. Moreover, the brush heads used in the design of the electric toothbrush are relatively small, which can clean the gaps between the teeth or the places that cannot be cleaned by ordinary toothbrushes, thereby improving the cleaning of teeth when people use the toothbrush. to improve people's sense of use.

At present, most of the electric toothbrushes on the market are mainly sonic cleaning, but it is limited by the large size of the sonic motor, resulting in a relatively large outer diameter of the handle of the toothbrush, which will bring discomfort to the handle for users with small hands, such as children. experience. The eccentric vibrating electric toothbrush can solve this problem. The rotating motor it uses has a variety of specifications. You can choose a suitable motor according to your needs to make the toothbrush small and delicate. Because of this, eccentric vibrating electric toothbrushes are favored by consumers. However, the existing electric toothbrushes on the market often have poor waterproof ability, especially the problem of short-circuit failure of the main engine caused by the easy entry of water in the motor position, and the vibration of the brush head is too strong, which causes the vibration to be transmitted to the brush handle, and at the same time produces large The noise greatly affects the user's experience and reduces the service life of the electric toothbrush.

Therefore, how to effectively overcome many defects such as the poor waterproof performance of the traditional electric toothbrush, the large vibration amplitude of the brush handle and the loud noise when brushing teeth, thereby prolonging the service life of the electric toothbrush and improving the user experience, has always been an urgent need for those skilled in the art. solved problem.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a host component and an electric toothbrush, in which the vibration generated by the eccentric block during the rotation process can be concentrated on one end of the brush head component, and at the same time, the flexible vibration damping member can effectively prevent the vibration from being transmitted to the host component, so as to prevent the vibration from being transmitted to the host component. It avoids the loss of vibration and improves the comfort when holding the host components, and can also effectively reduce noise, improving user experience in all aspects.

The technical scheme provided by the present invention is as follows:

The present invention provides a host component in a first aspect, comprising:

a main casing with a port;

a driving member, including a motor and an elastic shaft drivingly connected to the motor;

The motor is assembled in the main casing, and the elastic shaft extends to the outside of the main casing through the port;

The vibration rod includes a first support rod assembled at the port portion and a second support rod assembled at the free end of the first support rod through a flexible damping member; the first support rod and the second support rod together form a Assemble the cavity of the elastic shaft;

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

The eccentric block includes an integrated counterweight and a rotating shaft, the counterweight is assembled on one side of the elastic shaft, and the weight of one side of the elastic shaft assembled with the counterweight is greater than the weight of the opposite side of the elastic shaft. ;and

The rotating shaft is facing the free end of the elastic shaft, and is coaxial with the elastic shaft; and

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

In this patent, an eccentric block is assembled at the free end of the elastic shaft, and the vibrating rod sleeved on the elastic shaft is arranged in a two-part structure, and a flexible damping member is arranged to connect the split first support pole and second pole. In this way, under the action of the flexible vibration damper, it can ensure that the vibration generated by the eccentric block during the rotation can be concentrated at one end of the brush head member, which can ensure the vibration amount of the brush head member, so that the brush head member can be more efficient. To clean the teeth, at the same time, the flexible vibration damping element can effectively block the transmission of vibration to the host components, so as to avoid the loss of vibration amount and improve the comfort when holding the host components, and can also effectively reduce the noise and improve the user experience in all aspects. Further, in this patent, the weight of one side of the elastic shaft assembled with the counterweight is set to be greater than the weight of the opposite side of the elastic shaft, so that the effect of eccentricity can be achieved. When the motor drives the elastic shaft to rotate, the eccentricity is The block can achieve the effect of vibration due to eccentricity. And the bottom of the cavity is provided with a slot hole for the rotating shaft to be inserted and rotated, so that the eccentric block can be rotated smoothly and noise is reduced.

Further preferably, the counterweight includes a coaxially arranged abutting portion and a mounting portion;

The abutting portion is in a disc-shaped structure, and the mounting portion is in a semi-cylindrical structure;

An eccentric groove is formed between the mounting portion and the abutting portion;

the eccentric groove has vertically disposed groove bottom and groove sides; and

The free end of the elastic shaft is provided with a docking portion extending toward the motor direction and adapted to the eccentric groove;

The butting portion has a butting side surface abutting with the side surface of the groove and a butting end surface abutting with the bottom surface of the groove;

A limit rib extending to the outside of the butt end face is provided on the side of the butt joint along the axial direction of the elastic shaft; the inside of the junction; and

One end of the mounting portion facing away from the abutting portion is provided with a limiting protrusion, and one end of the abutting portion facing the motor is provided with a limiting recess adapted to the limiting protrusion;

Wherein, the eccentric block is fixed to the elastic shaft through the insert fit of the limit ribs and the limit grooves and the insert fit of the limit protrusions and the limit recesses.

Further preferably, the first support rod has a connecting end for docking with the port portion;

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

An abutting platform is formed between the connecting end and the remaining part of the first support rod for abutting the opening of the port portion; wherein,

A soft rubber piece is provided between the abutting platform and the port opening; and

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

Further preferably, it also includes:

The back cover, the middle frame and the PCB board electrically connected to each other, the battery, the wireless charging module and the switch button;

the motor is electrically connected to the PCB;

The rear cover is detachably assembled on the end of the main casing facing away from the port, and the middle frame, the PCB board, the battery and the wireless charging module are all arranged in the main casing , the switch button is arranged on the main casing;

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

Further preferably, one end of the first support rod facing away from the second support rod is fixed on the middle frame.

Further preferably, the switch button includes an indicator light assembly and a button that are electrically connected to the PCB board; the inner wall surface of the main casing has a cover corresponding to the position of the indicator light assembly and the button. a soft glue layer; and/or at least one second sealing ring is provided at the position where the rear cover and the main casing are in contact.

Further preferably, an end of the middle frame facing the back cover is provided with an accommodating groove, and the wireless charging module is buckled in the accommodating groove; the outer wall of the accommodating groove is provided with a buckle or a card A kind of slot, the inner wall of the main casing is provided with a buckle or a slot that is matched in position, and the middle frame is assembled in the main casing through the buckle and the buckle. ; and/or the side of the motor facing away from the middle frame is further provided with a motor fixing piece, and the motor fixing piece is used for locking the motor on the middle frame.

Further preferably, the outer periphery of the motor is provided with a damping soft rubber sleeve for abutting against the inner wall of the main casing; and/or the end of the motor facing away from the elastic shaft is provided with a soft rubber sleeve for abutting against the middle frame and/or the battery is provided with a vibration-damping foam pad for abutting against the inner wall of the main casing; and/or an anti-leakage is provided between the indicator light assembly and the PCB board Soft glue.

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

brush head member;

the above-mentioned host components;

Wherein, the brush head member includes a brush handle and a brush head;

One end of the brush handle is used to assemble the brush head, and the opposite end of the brush handle is used to butt with the vibration rod of the host component.

Further preferably, the brush handle is made of soft rubber material; and

The brush handle includes a handle body and a mounting portion for assembling the brush head; and

The brush handle body has an interface piece for docking with the vibrating rod.

The technical effect of the present invention is:

1. In this patent, an eccentric block is assembled at the free end of the elastic shaft, and the vibrating rod sleeved on the elastic shaft is arranged in a two-part structure, and a flexible damping member is provided to connect the split-type first. A rod and a second rod. In this way, under the action of the flexible vibration damper, it can ensure that the vibration generated by the eccentric block during the rotation can be concentrated at one end of the brush head member, which can ensure the vibration amount of the brush head member, so that the brush head member can be more efficient. To clean the teeth, at the same time, the flexible vibration damping element can effectively block the transmission of vibration to the host components, so as to avoid the loss of vibration amount and improve the comfort when holding the host components, and can also effectively reduce the noise and improve the user experience in all aspects.

2. In this patent, the weight of one side of the elastic shaft assembled with the counterweight is set to be greater than the weight of the opposite side of the elastic shaft, so that the effect of eccentricity can be achieved. When the motor drives the elastic shaft to rotate, the eccentric block Vibration can be achieved due to eccentricity.

3. In this patent, a slot hole for the rotating shaft to be inserted and rotated is provided at the bottom of the cavity, so that the eccentric block can rotate smoothly and reduce noise.

4. In this patent, the motor and the eccentric block are connected by an elastic shaft. The elastic shaft can greatly reduce the hard impact of the eccentric block on the motor, thereby protecting the motor to prolong the service life of the motor and reduce noise.

5. In this patent, the waterproof effect of the port can be enhanced by arranging a soft piece between the abutting table and the opening of the port, and providing at least one first sealing ring between the connecting end and the inner wall of the port.

6. In this patent, a soft rubber layer is placed on the inner wall of the main casing and corresponding to the indicator light assembly and the button. In this way, under the blocking effect of the soft rubber layer, the external water will not flow from the indicator light. Gap in the edge of the light assembly and button penetrated into the interior of the main unit. And the button can be directly bonded to the soft glue layer, which is convenient to install and has strong practicability.

7. In this patent, at least one second sealing ring is provided at the position where the rear cover and the main casing are in contact, so that the external water can be effectively prevented from penetrating into the inside of the main body component through the rear cover.

8. In this patent, the middle frame is assembled into the main casing through the snap fit of the buckle and the slot, which can effectively ensure that even if the main body components vibrate violently inside, the middle frame will not easily loosen or even detach from the main casing. .

9. In this patent, a vibration-damping soft rubber sleeve for contacting the inner wall of the main casing is sleeved on the motor, so that most of the vibration generated by the motor itself will be absorbed by the vibration-damping soft rubber sleeve during the operation of the motor. Absorption, so that the vibration transmitted to the main casing is very weak and the noise is reduced. And the end of the motor facing away from the elastic shaft is provided with a vibration-damping soft pad for abutting against the middle frame, so that vibration and noise can be reduced from both the horizontal and vertical dimensions, and the user's holding experience can be improved.

10. In this patent, the battery is provided with a shock-absorbing foam pad for contacting the inner wall of the main casing, which can effectively reduce the vibration of the battery, ensure that the battery will not be damaged, and effectively prolong its service life.

Description of drawings

The present invention is described in further detail below in conjunction with the accompanying drawings and specific embodiments:

Fig. 1 is the structural representation of the electric toothbrush of the product of the present invention;

Fig. 2 is the perspective exploded view of the host component shown in Fig. 1;

Fig. 3 is the cutaway view of the host component shown in Fig. 1;

Fig. 4 is the structural representation that the elastic shaft shown in Fig. 3 and the eccentric block are assembled;

Fig. 5 is the structural representation of the eccentric block shown in Fig. 4;

Fig. 6 is the structural representation of the elastic shaft shown in Fig. 4;

FIG. 7 is an exploded perspective view of the brush head member shown in FIG. 1 .

Description of reference numbers:

Electric toothbrush 10; host member 100; main casing 110; port part 111; soft glue layer 112; buckle 113; driving part 120; motor 121; motor fixing part 1211; elastic shaft 122; Butt end face 1223; limiting rib 1224; limiting recess 1225; vibrating rod 130; first strut 131; connecting end 1311; abutment platform 13111; second strut 132;

Slot hole 1341; Soft rubber piece 135; First sealing ring 136; Eccentric block 140; Slot side 1452; limiting slot 1453; back cover 210; second sealing ring 211; back cover fixing part 212; middle frame 220; Switch button 260; indicator light assembly 261; button 262; damping soft rubber sleeve 271; damping soft rubber pad 272; vibration damping foam pad 273; The main body 311; the brush head mounting part 312; the first brush head mounting part 3121; the second brush head mounting part 3122; the interface piece 313; the brush head 320; the first brush head 321;

Detailed ways

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

According to a specific embodiment provided by the present invention, as shown in FIGS. 1 to 6 , the present invention provides a host component 100 in a first aspect, including a main casing 110 , a driving member 120 and a vibration rod 130 . The main casing 110 has a port portion 111 . The driving member 120 includes a motor 121 and an elastic shaft 122 drivingly connected to the motor 121 . The motor 121 is assembled in the main casing 110 , and the elastic shaft 122 extends to the outside of the main casing 110 through the port portion 111 . The vibration rod 130 includes a first support rod 131 assembled to the port portion 111 and a second support rod 132 assembled to the free end of the first support rod 131 through a flexible vibration damping member 133 . The first support rod 131 and the second support rod 132 together form a cavity 134 for assembling the elastic shaft 122 . The free end of the elastic shaft 122 is assembled with an eccentric block 140 , and the eccentric block 140 includes an integral counterweight 141 and a rotating shaft 142 . The weight member 141 is assembled on one side of the elastic shaft 122 , and the weight of the side of the elastic shaft 122 on which the weight member 141 is assembled is greater than the weight of the opposite side of the elastic shaft 122 . And the rotating shaft 142 is facing the free end of the elastic shaft 122 and is coaxial with the elastic shaft 122 . And the bottom of the cavity 134 is provided with a slot hole 1341 for the rotating shaft 142 to be inserted and rotated.

In this patent, an eccentric block 140 is assembled on the free end of the elastic shaft 122, and the vibration rod 130 sleeved on the elastic shaft 122 is arranged in a two-part structure, and a flexible damping member 133 is provided to connect the parts. The first strut 131 and the second strut 132 of the pose. In this way, under the action of the flexible vibration damping member 133, it can be ensured that the vibration generated by the eccentric block 140 during the rotation process can be concentrated on one end of the brush head member 300, which can ensure the vibration amount of the brush head member 300, so that the brush head member 300 can clean teeth more efficiently, and at the same time, the flexible vibration damping member 133 can effectively block the transmission of vibration to the host member 100, so as to avoid the loss of vibration amount and improve the comfort when holding the host member 100, and can also effectively reduce noise. , to improve the user experience in all aspects. Further, in this patent, the weight of one side of the elastic shaft 122 on which the counterweight 141 is assembled is set to be greater than the weight of the opposite side of the elastic shaft 122, so that the effect of eccentricity can be achieved. When the motor 121 drives the elastic shaft 122 to rotate, During the process, the eccentric block 140 can achieve the effect of vibration due to the eccentricity. In addition, 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 smoothly and reduce noise.

In a second aspect, the present invention also provides an electric toothbrush 10 , the electric toothbrush 10 includes a brush head member 300 and the above-mentioned host member 100 . Specifically, referring to FIG. 7 , the brush head member 300 may include a brush handle 310 and a brush head 320 . One end of the brush handle 310 is used to assemble the brush head 320 , and the opposite end of the brush handle 310 is used to connect with the vibration rod 130 of the host component 100 . As a preferred solution, the brush handle 310 is made of a soft rubber material. By setting the brush handle 310 as a soft structure, vibration and collision with the intraoral skeleton can be reduced to a large extent, and the user experience can be improved.

Specifically, the brush handle 310 may include a brush handle body 311 and a brush head mounting portion 312 for assembling the brush head 320 . Since the handle body 311 is of a flexible tube structure, a fixing groove matching the contour of the vibration rod 130 can be formed in the brush handle body 311 for inserting the vibration rod 130 therein. The specific contour of the fixing groove is not limited, and can be specifically set according to the actual application scenario, and it is only necessary to ensure that it is compatible with the contour of the vibrating rod 130 . The fixing grooves may preferably be configured to extend to both ends of the brush handle body 311 in the length direction, and not penetrate to the free end of the brush handle body 311 . In this way, the vibration rod 130 can be completely inserted into the whole area of the handle body 311 , can support the handle body 311 , and can provide the handle body 311 with vibration force when brushing teeth. Preferably, in order to facilitate the smooth insertion and removal of the vibrating rod 130, the vibrating rod 130 may be in the shape of a truncated cone, that is, the diameter of the vibrating rod 130 gradually becomes smaller when the vibrating rod 130 extends toward the outside of the main housing 110, but it does not Not limited to this. As a preferred example of this embodiment, the brush head mounting portion 312 may include a first brush head mounting portion 3121 and a second brush 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 arranged along the axis of the brush handle 310 and are angularly adjacent to each other, which can greatly reduce the space occupied by them, and make the structure more compact, so that the Matches the oral size and tooth structure of various groups of people.

Further, in this embodiment, continuing to refer to FIG. 7 , one end of the handle body 311 for connecting the vibration rod 130 is an interface portion, and since the handle body 311 is soft, in order to ensure that the interface portion can be firmly connected to the The vibrating rod 130 may be provided with an interface member 313 at the interface portion, and the interface member 313 is made of hard glue material. Moreover, the combination form of the interface member 313 and the brush handle body 311 can be sleeved, welded, bonded, etc., and is not limited thereto. The interface part 313 plays a role of fixing with the host component 100 . Preferably, a locking portion may be provided at the opposite position of the vibration rod 130 and the interface member 313 to limit the positions of the two to prevent the two from loosening or even disengaging easily. Specifically, the cooperation between the host member 100 and the brush head member 300 is achieved by inserting the interface member 313 into the vibrating rod 130 and rotating a small amplitude to achieve fixation.

It is worth mentioning that, since the structure of the electric toothbrush 10 is ergonomically designed, the transverse section of the main casing 110 is much larger than the transverse section of the handle body 311, that is, the diameter of the main casing 110 is much larger than that of the handle body 311. The diameter of the handle body 311. Therefore, in order to make the joint between the main casing 110 and the handle body 311 look good and make a streamlined and smooth transition between the two, the interface piece 313 can be shaped like a horn. In this way, when the free end of the interface piece 313 When abutting against the port portion 111 , the diameters of the two end portions are equal, so that the contour of the outer layer of the interface member 313 can match the contour of the outer layer of the port portion 111 , but is not limited thereto. In this embodiment, the specific structure of the interface member 313 may not be limited.

It is worth mentioning that, in the process of extending the brush handle 310 from the main casing 110 toward the brush head 320, the diameter of the brush handle 310 gradually becomes smaller, so that the brush handle 310 can penetrate into the oral cavity more smoothly, and effectively reduce the diaphragm response to the oral cavity. The user experience can be further improved.

Further, in this embodiment, the interior of the vibration rod 130 is hollow for inserting the elastic shaft 122 therein, so as to provide sufficient vibration force to the brush head member 300 . Specifically, referring to FIGS. 2 and 3 , the vibration rod 130 may include a first support rod 131 assembled to the port portion 111 and a second support rod 132 assembled to the free end of the first support rod 131 through a flexible damping member 133 . A cavity 134 for assembling the elastic shaft 122 is formed in the support rod 131 and the second support rod 132 together.

It is worth mentioning that, referring to FIG. 2 and FIG. 3 , the flexible damping member 133 can be a tube-shaped damping soft rubber, the outer end surfaces of which are connected to the surface areas 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 disposed, and are butted end to end to form a long rod-shaped vibration rod 130 with a smooth surface transition. Preferably, the flexible vibration damping member 133 can be assembled between the first support rod 131 and the second support rod 132 by means of bonding or a fixed form of sheathing, but this patent does not impose any restrictions on the fixed form of the flexible vibration damping member 133 , any method that can be used to fix the flexible vibration damping member 133 to the two struts is within the protection scope of this patent. And since the first strut 131 and the second strut 132 are rigid structures, and the flexible damping member 133 is a soft structure, the first strut 131 and the second strut 132 can be flexibly transmitted through the flexible damping member 133 connect. Under the action of the flexible vibration damping member 133, it can ensure that the vibration generated by the eccentric block 140 during the rotation can be concentrated on one end of the brush head member 300, which can ensure the vibration amount of the brush head member 300, so that the brush head member 300 can To clean the teeth more efficiently, at the same time, the flexible vibration damping member 133 can effectively block the vibration transmission to the host member 100, so as to avoid the loss of vibration amount and improve the user's comfort when holding the host member 100, and can also effectively reduce noise, Improve the user experience in all aspects.

Further, in this embodiment, referring to FIG. 2 and FIG. 3 , the first support rod 131 has a connecting end 1311 for docking with the port 111 , and the connecting end 1311 abuts against the inner wall of the port 111 and is connected to the port The contour of the inner wall of 111 is adapted. In this way, it can be fixed to the main casing 110 . Specifically, the diameter of the connection end 1311 is larger than the diameter of the rest of the first support rod 131 , so that an abutment platform 13111 is formed between the connection end 1311 and the rest of the first support rod 131 for abutting against the port portion 111 . Inside the opening.

Further, between the abutting table 13111 and the opening of the port portion 111, a soft rubber piece 135 that matches the contour of the abutting table 13111 can be provided, and the longitudinal section of the soft rubber piece 135 can be L-shaped. The horizontal and vertical gaps between the abutment platform 13111 and the opening are completely made to interfere with the area where the first support rod 131 and the port 111 of the main casing 110 are abutting, so as to achieve both horizontal and vertical waterproofing. . Wherein, the amount of interference between the soft rubber piece 135 is greater than or equal to 0.2 mm and less than or equal to 0.5 mm, but is not limited thereto. And at least one first sealing ring 136 can be provided between the outer wall surface of the connecting end 1311 and the inner wall surface of the port 111, and the first sealing ring 136 and the two wall surfaces are interference fit, and the first sealing ring 136 The interference amount of the ring 136 between 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 is worth mentioning that the number of the first sealing rings 136 is preferably two, which can achieve the effect of double sealing between the two walls, but the specific number can be increased or decreased according to the actual application scenario. In this way, based on the above arrangement, the port portion 111 can effectively prevent the brushing water from penetrating into the main body member 100 from the port portion 111 under the dual action of the soft rubber piece 135 and the first sealing ring 136 . In addition, the soft rubber piece 135 and the first sealing ring 136 can also play a role of damping vibration, thereby reducing the vibration transmitted by the first support rod 131 to the main casing 110 .

Further, in this embodiment, referring to FIGS. 2 and 3 , the vibration generated by the eccentric block 140 during the rotation can be concentrated at one end of the brush head member 300 , so that the eccentric effect can be achieved. When the motor 121 drives the elastic shaft 122 During the rotation process, the eccentric block 140 can achieve the effect of vibration due to the eccentricity. In this way, the vibration amount of the brush head member 300 can be ensured, so that the brush head member 300 can clean the teeth more efficiently, and at the same time, the flexible vibration damping member 133 can effectively block the vibration transmission to the host member 100, so as to avoid the loss and increase of the vibration amount. The comfortable feeling when holding the host component 100 can also effectively reduce noise, thereby improving user experience in all aspects. That is to say, through the cooperation of the eccentric block 140 and the flexible vibration damping member 133 in this patent, the user experience can be greatly improved in terms of vibration sensation and noise reduction.

It is worth mentioning that, in this technical solution, the elastic shaft 122 is selected to be assembled on the driving end of the motor 121, because the elastic shaft 122 will generate the elastic shaft 122 under the action of its own elastic force when the motor 121 drives the elastic shaft 122 to rotate. The flexible rotation can greatly reduce the hard impact of the eccentric block 140 on the motor 121 , thereby protecting the motor 121 to prolong the service life of the motor 121 and reduce noise.

Specifically, as a preferred example, referring to FIGS. 4 to 6 , the counterweight 141 of the eccentric block 140 may include an abutting portion 143 and a mounting portion 144 that are coaxially arranged. The abutting portion 143 may have a disc-shaped structure, and the mounting portion 144 may have a semi-cylindrical structure. Preferably, the outer diameters of the abutting portion 143 and the mounting portion 144 are equal, but not limited thereto. The rotating shaft 142 is located at one end of the abutting portion 143 facing away from the mounting portion 144 . An eccentric groove 145 is formed between the mounting portion 144 and the abutting portion 143 . The contour of the eccentric groove 145 is consistent with the mounting portion 144 , and also has a semi-cylindrical groove structure. Further, the eccentric groove 145 has a groove bottom surface 1451 and a groove side surface 1452 arranged vertically, the groove bottom surface 1451 is a semicircular end surface, and the groove side surface 1452 is a rectangular end surface. The free end of the elastic shaft 122 is provided with a docking portion 1221 extending toward the motor 121 and adapted to the eccentric groove 145 . Matchingly, the butting portion 1221 has a butting side surface 1222 abutting against the groove side surface 1452 and a butting end surface 1223 abutting against the groove bottom surface 1451 . In this way, after the abutting portion 1221 is assembled in the eccentric groove 145, the abutting portion 1221 can directly abut on the mounting portion 144. At this time, the arc surface of the outer wall of the mounting portion 144 and the outer wall surface of the elastic shaft 122 are connected and matched to form a whole . In this technical solution, the weight of one side of the elastic shaft 122 on which the counterweight 141 is assembled is set to be greater than the weight of the opposite side thereof, so as to achieve an eccentric effect. When the motor 121 drives the elastic shaft 122 to rotate , the eccentric block 140 can achieve the effect of vibration due to the eccentricity. That is to say, the purpose of assembling the eccentric block 140 at the free end of the elastic shaft 122 is to ensure that the weights on both sides of the free end are inconsistent, thereby achieving the effect of eccentric vibration. Therefore, any component that can realize the above-mentioned eccentric vibration effect is within the scope of protection of this patent, and is not limited to the structure of the above-mentioned eccentric block 140 , which will not be repeated here.

Further, as a further optimization of the above example, the butting side surface 1222 is provided with a limiting rib 1224 extending to the outer side of the butting end surface 1223 along the axial direction of the elastic shaft 122 . Not limited to this. The side surface 1452 of the groove is provided with a limiting groove 1453 which is matched with the limiting rib 1224 , and the limiting groove 1453 extends to the inner side of the abutting portion 143 . In this way, after the restraining rib 1224 is matched with the restraining groove 1453 , the free end of the restraining rib 1224 is inserted into the inner side of the abutting portion 143 to realize the preliminary fixing of the elastic shaft 122 and the eccentric block 140 . Further, one end of the mounting portion 144 facing away from the abutting portion 143 is provided with a limiting protrusion 1441 , and one end of the abutting portion 1221 facing the motor 121 is provided with a limiting concave portion 1225 matching the limiting protrusion 1441 . In this way, the final fixation of the elastic shaft 122 and the eccentric block 140 can be achieved through the insert fit of the limiting protrusion 1441 and the limiting concave portion 1225 .

In this embodiment, referring to FIG. 3 , the bottom of the cavity 134 is further provided with a slot hole 1341 for the rotating shaft 142 to be inserted and rotated, so that the eccentric block 140 can rotate smoothly along the axial direction of the elastic shaft 122, reduce noise, and Provide users with a more comfortable vibration when brushing their teeth.

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

The rear cover 210 is detachably assembled on the end of the main casing 110 facing away from the port 111 , and at least one second sealing ring 211 is provided at the contact position of the rear cover 210 and the main casing 110 . Specifically, the rear cover 210 has a rear cover fixing portion 212 extending into the interior of the main casing 110 to abut against the inner wall of the main casing 110 . The rear cover fixing portion 212 can be a soft rubber plug body structure. The two sealing rings 211 can be sleeved on the rear cover fixing portion 212 and abut against the inner wall of the main casing 110 , so that external water can be effectively prevented from infiltrating into the main body member 100 through the rear cover 210 . As a further optimization of this embodiment, the number of the second sealing rings 211 can be set to two. 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, the back cover The fixing portion 212 is provided with annular grooves matching the position and number of the second sealing ring 211 for fixing the second sealing ring 211 , but not limited thereto. It is worth mentioning that the amount of interference between the second sealing ring 211 , the rear cover fixing portion 212 and the inner wall of the main casing 110 is greater than or equal to 0.1 mm and less than or equal to 0.4 mm, but is not limited thereto.

Further, referring to FIGS. 2 and 3 , the middle frame 220 , the PCB board 230 , the battery 240 and the wireless charging module 250 are all disposed in the main casing 110 , and the switch buttons 260 are disposed on the main casing 110 . The middle frame 220 is used for fixing the PCB board 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 that matches the contour of the motor 121 corresponding to the position of the motor 121 . After the motor 121 is assembled in the motor accommodating portion, a side of the motor 121 facing away from the middle frame 220 is also provided with a motor accommodating portion. The motor fixing member 1211 also has a cover plate-like structure that matches the contour of the motor 121 . The motor fixing member 1211 can lock the motor 121 in the motor receiving portion of the middle frame 220 by screws.

Further, it is only necessary to fasten the edge of the PCB board 230 on the middle frame 220 to assemble the PCB board 230 . In order to prevent the PCB board 230 from loosening or even falling off the middle frame 220 during the shaking process of the host component 100 , one or more screws can be added to strengthen the PCB board 230 after the PCB board 230 is fastened to the middle frame 220 . fixed. Since the PCB board 230 is a sheet-like structure, the PCB board 230 may be preferably set in a strip shape to fit the inner contour of the main casing 110 . Preferably, the PCB board 230 can be fixed to the position of the middle frame 220 corresponding to the inner wall surface of the main casing 110 , which can facilitate the installation of the battery 240 and the driver 120 . In this way, the battery 240 and the driving member 120 can be located on the same straight line, so that when the host member 100 is held by the user, all positions of the host member 100 are uniformly stressed, and there will be no local overweight or underweight situation, improving the user experience. grip.

Further, referring to FIG. 3 , the end of the first support rod 131 facing away from the second support rod 132 , that is, the connecting end 1311 of the first support rod 131 is fixed to the end of the middle frame 220 facing the port 111 . In this way, the fixation of the vibration rod 130 can be strengthened to ensure that the vibration rod 130 can be connected to the elastic shaft 122 more stably.

Further, referring to FIG. 2 , an end of the middle frame 220 facing the back cover 210 is provided with a accommodating slot 221 , and the wireless charging module 250 is buckled in the accommodating slot 221 through the buckle 113 to realize the storage of the wireless charging module 250 and fixed to prevent it from being damaged by direct exposure to the outside. The wireless charging module 250 is used to charge the battery 240 . Therefore, the battery 240 can be preferentially located adjacent to the back cover 210 so as to be connected to the wireless charging module 250 to ensure the stability of power transmission and improve the charging effect. It is worth mentioning that, the battery 240 can preferably be assembled on the middle frame 220 by means of double-sided adhesive tape and double fixing by the buckle 113 . In addition, the motor 121 can be preferentially arranged at a position adjacent to the port portion 111 , so that the elastic shaft 122 can extend to the outside of the main housing 110 through the port portion 111 .

Further, the outer wall surface of the accommodating slot 221 of the middle frame 220 is provided with one of the buckle 113 or the clamping slot 2211 , and the inner wall surface of the main casing 110 is provided with the other one of the buckle 113 or the clamping slot 2211 which is matched in position. The middle frame 220 is assembled into the main casing 110 through the snap fit of the snap 113 and the snap slot 2211 . In this way, after the components are assembled on the middle frame 220 , the formed movement can be directly inserted into the main casing 110 from the end of the main casing 110 toward the back cover 210 , and fastened into the main casing 110 to The fixing is achieved, and the rear cover 210 can also be provided with a buckle to be buckled with the main casing 110 to realize the sealing of the main casing 110 .

It is worth mentioning that this embodiment may not impose any restrictions on the specific outline of the middle frame 220, and may make specific settings according to actual usage requirements. Wherein, in order to compactly arrange the components in the main casing 110 to save space, the overall outline of the middle frame 220 can be set to match the interior of the main casing 110 . In this way, when the middle frame 220 is assembled in the main casing 110, under the resistance of the inner wall of the main casing 110, the stability is stronger and will not shake, so that the PCB board 230, the battery 240, the battery 240, the The stability of the wireless charging module 250 and the motor 121 is also enhanced accordingly. Wherein, the switch button 260 extends to the outside of the main casing 110 for the user to touch and operate, and its specific outline is not limited, and can be specifically set according to actual use requirements.

As a further optimization of this embodiment, the switch button 260 is not limited to controlling the opening and closing of the driver 120 , but can also be used to adjust the frequency of the driver 120 , thereby expanding the scope of application of the host component 100 to meet various needs of users. 2 , the switch button 260 may include an indicator light component 261 and a button 262 that are electrically connected to the PCB board 230 . In this embodiment, a soft glue layer 112 can be covered on the inner wall surface of the main casing 110 corresponding to the position of the indicator light assembly 261 and the button 262. The soft glue layer 112 can be connected to the main casing through the covering process. The inner wall surfaces of the body 110 form an integral body. In this way, under the blocking effect of the soft glue layer 112 , external water will not penetrate into the interior of the host component 100 through the gap between the edges of the indicator light assembly 261 and the button 262 . In addition, the button 262 can be directly bonded to the soft glue layer 112, which is convenient to install and has strong practicability. Further, in this embodiment, an anti-leakage soft glue 274 is also provided between the indicator light assembly 261 and the PCB board 230 , and the light-leakage soft glue 274 can prevent the light source in the indicator light assembly 261 from leaking light from the side. On the other hand, its own soft rubber material can also be used for vibration reduction, so as to protect the indicator light assembly 261 and the PCB board 230 .

In this embodiment, referring to FIG. 2 and FIG. 3 , the motor 121 is sleeved with a vibration-damping soft rubber sleeve 271 for abutting against the inner wall of the main casing 110 . In this way, the motor 121 generates large vibrations during operation. Part of it will be absorbed by the vibration-damping soft rubber cover 271 , so that the vibration sensation transmitted to the main casing 110 is very weak, and the noise is reduced, which improves the user's holding experience. Preferably, the damping soft rubber sleeve 271 can be sleeved on the motor fixing member 1211 and the middle frame 220 at the same time. So that the damping soft rubber sleeve 271 can directly act on the inner wall surface of the main casing 110 . In this embodiment, the length of the vibration-damping soft rubber sleeve 271 can be specifically set according to the actual use scene, and it can cover the entire outer wall surface of the motor 121 or a part of the outer wall surface of the motor 121 . within the scope of protection. Of course, the vibration-damping soft rubber sleeve 271 can also act on the area where the motor 121 and the elastic shaft 122 are butted, so as to reduce the vibration at this position.

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

That is to say, the vibration-damping soft rubber cover 271 performs vibration and noise reduction from the lateral direction of the motor 121 , and the vibration-damping soft rubber pad 272 performs vibration and noise reduction from the axial direction of the motor 121 . By acting on the two spatial dimensions of the motor 121, the user's comfort can be greatly improved.

Further, in this embodiment, the battery 240 is also provided with a vibration-absorbing foam pad 273 for abutting against the inner wall surface of the main casing 110, which can effectively reduce the vibration of the battery 240, ensure that the battery 240 will not be damaged, and effectively prolong the its service life.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (10)

1. 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.

2. The host component of claim 1,

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

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.

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

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.

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

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.

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;

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.

10. The electric toothbrush of claim 9,

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

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