CN216455435U

CN216455435U - Electric tooth brush

Info

Publication number: CN216455435U
Application number: CN202122749907.6U
Authority: CN
Inventors: 范峻苹; 李燕辉; 欧阳学
Original assignee: Shenzhen Ranvoo Technology Co Ltd
Current assignee: Shenzhen Torras Technology Co Ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-05-10
Anticipated expiration: 2031-11-10

Abstract

The utility model discloses an electric toothbrush, which comprises a toothbrush body and a supporting seat, wherein the toothbrush body comprises a handle and a toothbrush head, and the handle can be selectively placed on the supporting seat or removed from the supporting seat; the handle comprises a shell and a lifting mechanism, the shell is provided with an accommodating space, a handle air inlet and a handle air outlet which are respectively communicated with the accommodating space, the lifting mechanism is accommodated in the accommodating space and is connected with the brush head, and the lifting mechanism is used for driving the brush head to carry out lifting motion so as to accommodate the brush head in the accommodating space or push the brush head out of the accommodating space; the supporting seat comprises a seat shell and a fan, the seat shell is provided with an accommodating cavity, a seat shell air inlet and a seat shell air outlet which are respectively communicated with the accommodating cavity, the fan is accommodated in the accommodating cavity, and when the handle is placed on the supporting seat, the seat shell air outlet is communicated with the handle air inlet. The fan can blow external air to the brush hair on the brush head, thereby taking away the moisture on the brush hair, achieving the air drying effect and reducing the risk of bacterial breeding.

Description

Electric tooth brush

Technical Field

The utility model relates to the technical field of daily users, in particular to an electric toothbrush.

Background

In daily life, a toothbrush is one of indispensable daily necessities. With the improvement of living standard of people, the electric toothbrush has become more and more people's choice because of convenience and better cleaning effect. However, the existing electric toothbrush is usually placed in a suitable place such as a wash stand directly after being used up, so that the bristles are in a wet environment, and bacteria are easy to grow in the wet environment.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an electric toothbrush capable of reducing the growth of bacteria.

An electric toothbrush comprising a toothbrush body and a support base, the toothbrush body comprising a handle and a head, the handle being selectively positionable on and removable from the support base;

the handle comprises a shell and a lifting mechanism, the shell is provided with an accommodating space, and a handle air inlet and a handle air outlet which are respectively communicated with the accommodating space, the lifting mechanism is accommodated in the accommodating space and is connected with the brush head, and the lifting mechanism is used for driving the brush head to carry out lifting motion so as to accommodate the brush head in the accommodating space or push the brush head out of the accommodating space;

the supporting seat comprises a seat shell and a fan, the seat shell is provided with an accommodating cavity and a seat shell air inlet and a seat shell air outlet which are communicated with the accommodating cavity respectively, the fan is accommodated in the accommodating cavity, and when the handle is placed on the supporting seat, the seat shell air outlet is communicated with the handle air inlet.

In some embodiments, the fan includes an inner frame, an outer frame surrounding the outer periphery of the inner frame, fan blades located between the inner frame and the outer frame and fixedly connected to the inner frame, and a first motor connected to the inner frame, wherein the inner frame is disposed opposite to the seat shell air inlet.

In some embodiments, an end of the inner frame near the seat shell air inlet extends in a direction away from the seat shell air inlet in a manner of gradually increasing in circumferential size.

In some embodiments, the fan blades include a plurality of first fan blades and a plurality of second fan blades, the plurality of first fan blades and the plurality of second fan blades are alternately distributed at intervals along the circumferential direction of the inner frame, and the first fan blades are closer to the seat shell air inlet than the second fan blades.

In some embodiments, the seat shell air inlet is disposed at the bottom of the seat shell, and the inner side surface of the outer frame extends from the seat shell air inlet toward the seat shell air outlet in a manner of gradually increasing circumferential dimension.

In some embodiments, the seat housing air outlet and the seat housing air inlet are disposed opposite to each other at an interval, the outer frame is located between the seat housing air inlet and the seat housing air outlet, a fixed housing connected to the first motor and the outer frame is disposed in the accommodating cavity, a flow guide surface is disposed on an inner side of the fixed housing, and the flow guide surface extends from the outer frame toward the seat housing air outlet in a manner that a circumferential dimension thereof is gradually reduced.

In some embodiments, the fixing housing includes a fixing portion for fixing the first motor, a flow guiding portion surrounding the fixing portion at an interval, and a connecting strip connected between the fixing portion and the flow guiding portion, the flow guiding portion is located between the outer frame and the seat housing air outlet, and the flow guiding surface is located inside the flow guiding portion.

In some embodiments, the seat shell is provided with a cavity for inserting the handle, and the cavity is communicated with the seat shell air outlet.

In some embodiments, the bottom of the seat shell is provided with supporting blocks, the seat shell air inlet is arranged at the bottom of the seat shell, and an air inlet passage communicated with the seat shell air inlet is formed between two adjacent supporting blocks.

In some embodiments, the handle further includes a fixing sleeve disposed in the accommodating space and a second motor mounted on the fixing sleeve, an air passing gap exists between an outer wall of the fixing sleeve and an inner wall of the housing, the air passing gap is respectively communicated with the handle air inlet and the handle air outlet, the brush head is connected with a motor shaft of the second motor, and the lifting mechanism is connected with the second motor and drives the brush head and the second motor to perform lifting movement.

In some embodiments, a wireless charging transmitting coil is arranged in the accommodating cavity, a handle battery and a wireless charging receiving coil are arranged in the accommodating space, the second motor is electrically connected with the handle battery, the wireless charging receiving coil is matched with the wireless charging transmitting coil to charge the handle battery, the wireless charging transmitting coil is annularly arranged on the periphery of the seat shell air outlet, and the wireless charging receiving coil is annularly arranged on the periphery of the handle air inlet.

In some embodiments, the lifting mechanism includes a third motor, a gear, and a rack, the third motor and the second motor are fixed by the fixing sleeve, the fixing sleeve can slide along the extending direction of the housing, the gear is sleeved on the motor shaft of the second motor and can rotate along with the motor shaft, and the rack is fixed in the housing and meshed with the gear.

In some embodiments, one of the outer wall of the fixing sleeve and the inner wall of the housing is provided with a sliding groove, and the other one of the outer wall of the fixing sleeve and the inner wall of the housing is correspondingly provided with a protruding strip in sliding fit with the sliding groove, and the sliding groove and the protruding strip both extend along the extending direction of the housing.

When the electric toothbrush is not used, the brush head can be accommodated in the accommodating space through the lifting mechanism, the handle is placed on the supporting seat, the seat shell air outlet on the supporting seat is communicated with the handle air inlet on the handle, external air is sucked into the accommodating cavity through the seat shell air inlet when the fan works, then airflow is formed under the action of the fan and moves towards the seat shell air outlet, the airflow enters the accommodating space through the handle air inlet after passing through the seat shell air outlet, and finally is discharged from the handle air outlet, and in the process that the air moves from the handle air inlet to the handle air outlet, the airflow can flow through the brush head, so that moisture in bristles on the brush head is taken away, an air drying effect is achieved on the bristles, and the risk of bacterial growth is reduced. And the fan is arranged in the seat shell, so that the size of the fan is not influenced by the handle, and the fan with the size larger than that of the handle can be used to provide larger wind force to enhance the air drying effect.

Drawings

FIG. 1 is a schematic view of an electric toothbrush according to an embodiment of the present invention;

FIG. 2 is a schematic view of the powered toothbrush shown in FIG. 1 from another perspective;

FIG. 3 is an exploded view of the toothbrush body and the support base of the electric toothbrush shown in FIG. 1;

FIG. 4 is a schematic cross-sectional view of the electric toothbrush shown in FIG. 1;

FIG. 5 is a schematic cross-sectional view of the powered toothbrush shown in FIG. 1 in another orientation;

FIG. 6 is an exploded view of the support base shown in FIG. 3;

FIG. 7 is an exploded view of the support base shown in FIG. 3 from another perspective;

FIG. 8 is a partially exploded schematic view of the toothbrush body shown in FIG. 3;

FIG. 9 is a partially exploded view of another perspective of the toothbrush body illustrated in FIG. 3;

fig. 10 is an assembly view of the fixing sleeve, the second motor and the third motor according to an embodiment of the present invention;

fig. 11 is a schematic structural view of the housing shown in fig. 9.

In the figure: 100. an electric toothbrush; 1. a toothbrush body; 2. a supporting seat; 10. a handle; 20. a brush head; 21. Brushing; 11. a housing; 12. a lifting mechanism; 111. an accommodating space; 112. a handle air inlet; 113. the handle air outlet; 30. a seat shell; 40. a fan; 301. an accommodating cavity; 302. a seat shell air inlet; 303. an air outlet of the seat shell; 31. an upper housing; 32. a lower housing; 33. a support block; 331. an air inlet channel; 304. a concave cavity; 34. positioning the projection; 114. positioning a groove; 41. an inner frame; 42. an outer frame; 43. a fan blade; 44. a first motor; 431. a first fan blade; 432. a second fan blade; 421. an inner side surface; 35. a limiting bulge; 36. a stationary case; 361. a flow guide surface; 362. a fixed part; 363. a flow guide part; 364. a connecting strip; 37. a seat shell battery; 38. a charging port; 13. a second motor; 14. a circuit board; 15. a handle battery; 16. a wireless charging receiving coil; 39. a wireless charging transmitting coil; 17. mounting a shell; 115. a wind gap; 18. a movable cover; 50. A sterilizing lamp; 121. a third motor; 122. a gear; 123. a rack; 19. fixing a sleeve; 190. a convex strip; 116. a chute; 191. a magnetic member; 142. a Hall switch.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

It should be noted that all directional indicators (such as upper, lower, left, right, front, back, inner, outer, top, bottom … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Referring to fig. 1 to 5, an electric toothbrush 100 according to an embodiment of the present invention includes a toothbrush body 1 and a supporting base 2, the toothbrush body 1 includes a handle 10 and a brush head 20 mounted on the handle 10, the handle 10 is used for being held by a user, and bristles 21 are disposed on the brush head 20 for cleaning teeth or objects. The handle 10 is selectively placed on the support base 2 or removed from the support base 2, that is, the toothbrush body 1 can be removed from the support base 2 when the user needs to use the toothbrush body 1, and the toothbrush body 1 can be placed on the support base 2 when the user does not need to use the toothbrush body 1.

The handle 10 includes a housing 11 and a lifting mechanism 12, the housing 11 is provided with an accommodating space 111, a handle air inlet 112 and a handle air outlet 113, and the handle air inlet 112 and the handle air outlet 113 are respectively communicated with the accommodating space 111. The elevating mechanism 12 is accommodated in the accommodating space 111 and connected to the brush head 20 to drive the brush head 20 to move up and down, thereby accommodating the brush head 20 in the accommodating space 111 or pushing the brush head 20 out of the accommodating space 111. When the user is using, can utilize elevating system 12 drive brush head 20 to move outward, push away the outside of shell 11 with brush head 20, when not needing the use, can utilize elevating system 12 drive brush head 20 to move inward, receive brush head 20 in accommodating space 111, reduce toothbrush body 1's volume, convenient storage and carry also can play the effect of protection brush head 20 simultaneously.

The specific locations of the handle intake 112 and the handle outlet 113 are not limited, and in the illustrated embodiment, the handle intake 112 is disposed at the bottom of the housing 11, and the handle outlet 113 is disposed at the top of the housing 11, wherein the bottom of the housing 11 is the end away from the brush head 20, and the top is the end near the brush head 20.

It is understood that the brush head 20 can enter and exit the accommodating space 111 from the handle outlet 113, or an outlet can be additionally provided on the housing 11 for the brush head 20 to enter and exit the accommodating space 111. In the illustrated embodiment, the brush head 20 enters and exits the receiving space 111 through the handle outlet 113.

Referring to fig. 4, the supporting base 2 includes a housing 30 and a fan 40, the housing 30 has an accommodating cavity 301, a housing inlet 302 and a housing outlet 303, the housing inlet 302 and the housing outlet 303 are both communicated with the accommodating cavity 301, and the fan 40 is installed in the accommodating cavity 301.

When the user does not need to use the toothbrush body 1, the user can retract the brush head 20 into the accommodating space 111, and then place the handle 10 on the supporting seat 2, at this time, the seat shell air outlet 303 is communicated with the handle air inlet 112. When the fan 40 works, outside air is sucked into the accommodating cavity 301 through the seat shell air inlet 302, then airflow is formed under the action of the fan 40 and moves towards the seat shell air outlet 303, and the airflow passes through the seat shell air outlet 303, enters the accommodating space 111 through the handle air inlet 112, and finally is discharged from the handle air outlet 113. In the process that the airflow moves from the handle air inlet 112 to the handle air outlet 113, the airflow can flow through the brush head 20, so that moisture of the bristles 21 on the brush head 20 is taken away, an air drying effect is formed on the bristles 21, and the risk of bacteria breeding is reduced. And the fan 40 is arranged inside the seat shell 30, so that the size of the fan 40 is not influenced by the handle 10, and therefore, the fan 40 with the size larger than that of the handle 10 can be used to provide larger wind force to improve the air drying effect.

The specific type of fan 40 is not limited, and may be an axial fan 40 or a centrifugal fan 40, and in the illustrated embodiment, the fan 40 is an axial fan.

The seat shell 30 includes an upper shell 31 and a lower shell 32, the upper shell 31 covers the lower shell 32 and encloses to form an accommodating cavity 301, the seat shell air inlet 302 penetrates through the lower shell 32, and the seat shell air outlet 303 penetrates through the upper shell 31.

The bottom of the seat shell 30 is provided with a plurality of supporting blocks 33, the seat shell air inlet 302 is arranged at the bottom of the seat shell 30, and an air inlet passage 331 communicated with the seat shell air inlet 302 is formed between two adjacent supporting blocks 33. When the support base 2 is placed on a support surface such as a table top, the support blocks 33 lift the base shell 30 to space the base shell 30 from the support surface, so that air can smoothly move from the air inlet channel 331 between the two support blocks 33 to the base shell air inlet 302 and enter the accommodating cavity 301 through the base shell air inlet 302.

Referring to fig. 3, the top of the housing 30 is recessed downward to form a cavity 304, and the cavity 304 is communicated with the housing outlet 303. When the toothbrush body 1 is not needed to be used, one end of the handle 10 can be inserted into the concave cavity 304, so that the handle air inlet 112 is communicated with the seat shell air outlet 303, and the stability of the handle 10 when being placed on the seat shell 30 can be enhanced.

The bottom wall of the cavity 304 is provided with a positioning protrusion 34, and the bottom of the housing 11 is correspondingly provided with a positioning slot 114 for inserting the positioning protrusion 34. When the handle 10 is inserted into the cavity 304, the positioning groove 114 can be aligned to the positioning protrusion 34, after the handle 10 is inserted into the cavity 304, the positioning protrusion 34 can be inserted into the positioning groove 114, and at this time, the handle air inlet 112 is aligned with the seat shell air outlet 303, so as to be communicated with the seat shell air outlet 303, and meanwhile, the stability of the handle 10 placed on the support seat 2 can be further enhanced.

The specific number and the specific shape of the positioning protrusions 34 and the positioning grooves 114 are not limited, and in the illustrated embodiment, the positioning protrusions 34 and the positioning grooves 114 are both arc-shaped and are provided in plural numbers, the plurality of positioning protrusions 34 are distributed at intervals along the circumferential direction of the seat shell air outlet 303, and the plurality of positioning grooves 114 are distributed at intervals along the axial direction of the handle air inlet 112.

Referring to fig. 6 and 7, the fan 40 includes an inner frame 41, an outer frame 42, fan blades 43 and a first motor 44, a motor shaft of the first motor 44 is fixedly connected to the inner frame 41 to drive the inner frame 41 to rotate, the outer frame 42 is disposed around the outer circumference of the inner frame 41 and spaced apart from the inner frame 41, and the fan blades 43 are disposed between the inner frame 41 and the outer frame 42 and fixedly connected to the inner frame 41. When the first motor 44 drives the inner frame 41 to rotate, the inner frame 41 drives the fan blades 43 to rotate together, so as to suck the outside air into the accommodating cavity 301 through the housing air inlet 302.

In the illustrated embodiment, the inner frame 41 is disposed adjacent to the housing inlet 302 and opposite to the housing inlet 302 to facilitate air to directly pass through the fan 40 after entering the receiving cavity 301 from the housing inlet 302.

The end part of the inner frame 41 close to the seat shell air inlet 302 extends towards the direction far away from the seat shell air inlet 302 in a mode that the circumferential size is gradually increased, so that the end part of the inner frame 41 close to the seat shell air inlet 302 is in a circular truncated cone shape with a large top and a small bottom, the air inlet area of the fan 40 is increased, the air quantity is increased, and the air drying effect of the fan 40 on the bristles 21 is improved.

Fan 43 includes a plurality of first fan 431 and a plurality of second fan 432, and the size of second fan 432 is smaller than that of first fan 431. The plurality of first blades 431 are distributed at intervals along the circumferential direction of the inner frame 41, a second blade 432 is arranged between two adjacent first blades 431, and the second blade 432 is spaced from the adjacent first blades 431, that is, the first blades 431 and the second blades 432 are alternately distributed at intervals along the circumferential direction of the inner frame 41. The first fan 431 is closer to the seat housing air inlet 302 than the second fan 432, that is, the lower end of the first fan 431 is closer to the lower end of the inner frame 41 than the lower end of the second fan 432. Because the end part of the inner frame 41 close to the seat shell air inlet 302 is in a special shape with a large top and a small bottom, the distance between the upper ends of two adjacent first fan blades 431 is larger than the distance between the lower ends of the two adjacent first fan blades, and the second fan blade 432 with a relatively small size is arranged at the position with a relatively large distance between the two first fan blades 431, namely the top, so that the number of the fan blades 43 is increased, the air volume and the wind power are increased, and the air drying effect of the fan 40 on the brush bristles 21 is further improved.

Referring to fig. 4, the inner side 421 of the outer frame 42, i.e. the side close to the inner frame 41, extends from the housing inlet 302 to the housing outlet 303 in a manner of gradually increasing the circumferential dimension. This kind of design makes the inboard space of frame 42 from supreme crescent down to can convert the kinetic energy of fan 40 pivoted into bigger wind pressure, overcome the windage through the wind pressure and then make the air current can be more smooth and easy pass fan 40, consequently can reduce the air current and leak the risk to the frame 42 outside from the space between frame 42 and seat shell 30.

The inner wall of the seat shell 30 is provided with a limiting bulge 35, and the limiting bulge 35 is annular and is annularly arranged on the periphery of the outer frame 42 and is abutted against the outer frame 42. The limiting protrusion 35 can limit the outer frame 42, so as to prevent the outer frame 42 from moving in the radial direction, and enhance the stability of the outer frame 42.

In the illustrated embodiment, the housing outlet 303 is spaced apart from and opposite the housing inlet 302, and the fan 40 is positioned between the housing inlet 302 and the housing outlet 303. The design mode ensures that the air flow is smoother and is beneficial to reducing the wind resistance.

Referring to fig. 4 and 7, the fan 40 further includes a fixing housing 36 disposed in the accommodating cavity 301, and the fixing housing 36 is connected to the first motor 44 and the outer frame 42, so as to assemble the fan 40 together. The inner side of the fixed casing 36 is provided with a flow guide surface 361, and the flow guide surface 361 extends from the outer frame 42 toward the seat casing air outlet 303 in a manner that the circumferential dimension is gradually reduced. After passing through the fan 40, the airflow moves upward under the action of the fan 40, the airflow moves to the flow guide surface 361 and then is blocked by the flow guide surface 361, the movement direction of the airflow changes, and the airflow moves along the extension direction of the flow guide surface 361, namely, towards the direction of the seat shell air outlet 303, so that the flow guide effect is achieved.

The fixing case 36 includes a fixing portion 362 for fixing the first motor 44, a flow guide portion 363 spaced around an outer circumference of the fixing portion 362, and a connection bar 364 connected between the fixing portion 362 and the flow guide portion 363. The diversion part 363 is located between the outer frame 42 and the seat shell air outlet 303, the bottom end of the diversion part 363 is connected with the top of the outer frame 42, the top end extends towards the seat shell air outlet 303 and is attached to the inner wall of the seat shell 30, and the diversion surface 361 is arranged on the inner side of the diversion part 363. After passing through the fan 40, the air may enter the housing outlet 303 from a gap between the fixing portion 362 and the flow guide portion 363.

In the illustrated embodiment, the top and the bottom of the flow guide portion 363 are both circular rings, the middle portion is in a bell mouth shape with a small top and a large bottom, and the flow guide surface 361 is located on the inner side of the middle portion of the flow guide portion 363.

Referring to fig. 4, a housing battery 37 is disposed in the receiving cavity 301 of the housing 30, and the housing battery 37 is electrically connected to the first motor 44 to provide electric energy for the first motor 44. Through set up seat shell battery 37 in seat shell 30 for supporting seat 2 need not external power supply and also can make fan 40 normal work, has widened the use scene of supporting seat 2. Preferably, the seat shell battery 37 is a rechargeable battery, and the seat shell 30 is provided with a charging port 38 for charging the seat shell battery 37. When the electric quantity of the seat shell battery 37 is insufficient, the seat shell battery 37 can be charged by externally connecting a power supply through the charging port 38, so that the repeated use of the seat shell battery 37 is realized.

The specific number of the seat housing batteries 37 is not limited, and in the illustrated embodiment, two seat housing batteries 37 are provided, and the two seat housing batteries 37 are symmetrically disposed on opposite sides of the seat housing 30.

Referring to fig. 4, 8 and 9, the handle 10 further includes a second motor 13, a circuit board 14 and a handle battery 15 accommodated in the accommodating space 111, and the handle battery 15 is electrically connected to the second motor 13 and the lifting mechanism 12 through the circuit board 14, respectively, so as to provide electric energy for the second motor 13 and the lifting mechanism 12. The motor shaft of the second motor 13 is connected to the brush head 20 to drive the brush head 20 to vibrate or rotate. The lifting mechanism 12 is connected with the brush head 20 through the second motor 13, so as to drive the second motor 13 and the brush head 20 to carry out lifting movement together. Preferably, the second motor 13 is a vibration motor for driving the brush head 20 to vibrate.

The brush head 20 is provided with a shaft hole, and a motor shaft of the second motor 13 can extend out of the outer side of the shell 11 to be inserted into the shaft hole, so that the brush head 20 is detachably connected with the motor shaft of the second motor 13. The motor shaft of the brush head 20 and the motor shaft of the second motor 13 are detachably connected, so that the handle 10 is reused, the use cost of a user is reduced, and the brush head 20 is convenient to disassemble and assemble by the user due to the disassembling and assembling mode of plugging and unplugging.

Referring to fig. 4, a wireless charging receiving coil 16 is disposed in the accommodating space 111 of the housing 11, a wireless charging transmitting coil 39 is disposed in the accommodating cavity 301 of the seat shell 30, and the wireless charging receiving coil 16 is matched with the wireless charging transmitting coil 39 to charge the handle battery 15, so as to achieve reuse of the handle battery 15. Through setting up wireless transmitting coil 39 and the wireless receiving coil 16 that charges of mutually supporting, when placing handle 10 on supporting seat 2, just can charge for the inside handle battery 15 of handle 10 automatically for supporting seat 2 not only has the air-dry effect, still has the effect of charging simultaneously, has richened the function of supporting seat 2.

In the illustrated embodiment, the wireless charging receiver coil 16 is disposed adjacent to the handle intake vent 112 and surrounds the periphery of the handle intake vent 112. The wireless charging transmitting coil 39 is disposed near the seat housing air outlet 303 and surrounds the outer periphery of the seat housing air outlet 303. The air current that fan 40 produced, in the process of passing seat shell air outlet 303 and handle air intake 112, can flow through wireless transmitting coil 39 and the wireless receiving coil 16 that charges in proper order to take away the heat that wireless transmitting coil 39 and the wireless receiving coil 16 that charges produced at the during operation, reduce both temperatures, guarantee that both can normally work and increase of service life. When the air flow carries away the heat of the wireless charging transmitting coil 39 and the wireless charging receiving coil 16, the temperature of the air flow is increased, and the air drying effect of the air flow on the bristles 21 can be improved.

Referring to fig. 8 and 9, a mounting case 17 is disposed in the accommodating space 111 of the housing 11, and the circuit board 14 and the handle battery 15 are mounted on the mounting case 17.

Two movable covers 18 are accommodated in the accommodating space 111 of the housing 11, and the two movable covers 18 are rotatably mounted on one end of the mounting case 17 close to the handle outlet 113 by a return member such as a torsion spring. When elevating system 12 was received accommodating space 111 with brush head 20 or was released brush head 20 from accommodating space 111, two movable cover 18 rotated toward two opposite directions to supply brush head 20 to pass through, treat brush head 20 and pass through the back, two movable cover 18 realized the closure effect at the effect of piece that resets in opposite directions, covered partial handle air outlet 113, played certain waterproof dustproof effect.

Referring to fig. 4, a disinfection lamp 50 electrically connected to the circuit board 14 is disposed in the accommodating space 111, and the disinfection lamp 50 is disposed near the handle outlet 113. When the brush head 20 is received in the receiving space 111, the sterilizing lamp 50 is opposite to the bristles 21 of the brush head 20. The light that sterilamp 50 for example ultraviolet ray sterilamp 50 produced can play the sterile effect of disinfecting, consequently, when brush head 20 was acceptd in accommodating space 111, can not only utilize fan 40 to air-dry brush hair 21, can also utilize the light that sterilamp 50 produced to disinfect and disinfect brush hair 21, has further reduced the risk that brush hair 21 multiplied the bacterium.

Referring to fig. 5 and 8, the lifting mechanism 12 includes a third motor 121, a gear 122 and a rack 123, the third motor 121 is fixedly connected to the second motor 13, the gear 122 is sleeved on a motor shaft of the third motor 121 and can rotate along with the motor shaft of the third motor 121, the rack 123 is disposed on the mounting case 17 and fixed relative to the housing 11, and the rack 123 is engaged with the gear 122. When the third motor 121 drives the gear 122 to rotate, the gear 122 moves on the rack 123 because the rack 123 cannot move, the gear 122 moves and drives the third motor 121 to move up and down, and the third motor 121 drives the second motor 13 and the brush head 20 to move up and down, so that the brush head 20 is accommodated in the accommodating space 111 or the brush head 20 is pushed out of the accommodating space 111.

The fixing manner of the second motor 13 and the third motor 121 is not limited, for example, the second motor 13 and the third motor 121 may be fixed together by directly gluing with glue or by fixing them together through an intermediate component. In the embodiment shown in fig. 10, the second motor 13 and the third motor 121 are fixed by a fixing sleeve 19, the second motor 13 and the third motor 121 are both fixed in the fixing sleeve 19, and the motor shafts of the second motor 13 and the third motor 121 both extend out of the fixing sleeve 19 and are respectively connected with the brush head 20 and the gear 122. An air passing gap 115 is formed between the outer wall of the fixing sleeve 19 and the inner wall of the shell 11, and the air passing gap 115 is respectively communicated with the handle air inlet 112 and the handle air outlet 113 so as to allow air flow to pass through. When the gear 122 moves on the rack 123, the fixed sleeve 19, the second motor 13 and the third motor 121 can be driven to move together, so as to drive the brush head 20 to move up and down.

Referring to fig. 10 and 11, in the illustrated embodiment, the outer wall of the fixing sleeve 19 is provided with a protruding strip 190, the inner wall of the housing 11 corresponds to the sliding slot 116, the protruding strip 190 is slidably engaged with the sliding slot 116, and both the protruding strip 190 and the sliding slot 116 extend along the extending direction (i.e., the length direction) of the housing 11. When fixed cover 19 carries out elevating movement under the effect of gear 122 and rack 123, sand grip 190 can slide along its extending direction in spout 116, and spout 116 can play certain spacing effect to sand grip 190, can make the more steady operation of fixed cover 19.

In other embodiments, a rib 190 may be provided on the inner wall of the housing 11 and a sliding slot 116 may be provided on the outer wall of the fixing sleeve 19.

Referring to fig. 4 and 9, a magnetic member 191, such as a magnet, is disposed on a side of the fixing sleeve 19 close to the circuit board 14, so that the magnetic member 191 can move along with the third motor 121. The circuit board 14 is provided with a hall switch 142, and the hall switch 142 can be matched with the magnetic member 191 to control the movement distance of the gear 122 on the rack 123, so as to avoid the movement distance of the gear 122 from being too large or too small.

The hall switches 142 are two, one of which is disposed near the handle intake 112 and the other is disposed near the handle outtake 113. When the magnet moves to a distance from the hall switch 142 to a preset requirement (e.g., right), the gear 122 stops moving. For example, when the magnet moves to align with the hall switch 142 near the handle inlet 112, the third motor 121 stops, so that the gear 122 stops moving, and the brush head 20 is just pushed out to the preset position. When the magnet moves to align with the hall switch 142 close to the handle air inlet 112, the third motor 121 stops working, so that the gear 122 stops moving, and at this time, the brush head 20 is just accommodated in the preset position in the accommodating space 111.

When the electric toothbrush is not used, the brush head can be accommodated in the accommodating space through the lifting mechanism, the handle is placed on the supporting seat, the seat shell air outlet on the supporting seat is communicated with the handle air inlet on the handle, external air is sucked into the accommodating cavity through the seat shell air inlet when the fan works, then airflow is formed under the action of the fan and moves towards the seat shell air outlet, the airflow enters the accommodating space through the handle air inlet after passing through the seat shell air outlet and is finally discharged from the handle air outlet, and in the process that the air moves from the handle air inlet to the handle air outlet, the airflow can flow through the brush head, so that moisture in the bristles on the brush head is taken away, an air drying effect is formed on the bristles, and the risk of bacteria breeding is reduced. And the fan is arranged in the seat shell, so that the size of the fan is not influenced by the handle, and the fan with the size larger than that of the handle can be used to provide larger wind force to enhance the air drying effect.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. An electric toothbrush, characterized by comprising a toothbrush body and a support seat, wherein the toothbrush body comprises a handle and a brush head, and the handle can be selectively placed on or removed from the support seat;

2. The electric toothbrush according to claim 1, wherein the fan comprises an inner frame, an outer frame surrounding the outer periphery of the inner frame, fan blades located between the inner frame and the outer frame and fixedly connected with the inner frame, and a first motor connected with the inner frame, and the inner frame is disposed opposite to the air inlet of the seat shell.

3. The electric toothbrush according to claim 2, wherein the end of the inner frame adjacent to the housing inlet is extended in a direction away from the housing inlet in a manner of gradually increasing in circumferential dimension.

4. The electric toothbrush according to claim 3, wherein the fan blades comprise a plurality of first fan blades and a plurality of second fan blades, the plurality of first fan blades and the plurality of second fan blades are alternately distributed along the circumferential direction of the inner frame, and the first fan blades are closer to the seat shell air inlet than the second fan blades.

5. The electric toothbrush according to claim 2, wherein the housing inlet is formed at a bottom of the housing, and an inner surface of the outer frame extends from the housing inlet toward the housing outlet in such a manner that a circumferential dimension thereof gradually increases.

6. The electric toothbrush according to claim 2, wherein the housing outlet and the housing inlet are spaced apart from each other and disposed opposite to each other, the outer frame is disposed between the housing inlet and the housing outlet, a fixing housing connected to the first motor and the outer frame is disposed in the accommodating cavity, and a flow guide surface is disposed on an inner side of the fixing housing and extends from the outer frame toward the housing outlet in a manner that a circumferential dimension thereof is gradually reduced.

7. The electric toothbrush according to claim 6, wherein the fixing housing includes a fixing portion for fixing the first motor, a guide portion spaced around an outer periphery of the fixing portion, and a connection bar connected between the fixing portion and the guide portion, the guide portion is located between the outer frame and the outlet of the housing, and the guide surface is located inside the guide portion.

8. The electric toothbrush of claim 1, wherein the housing defines a cavity for insertion of the handle therein, the cavity being in communication with the housing air outlet.

9. The electric toothbrush according to claim 1, wherein the bottom of the housing is provided with support blocks, the housing inlet is disposed at the bottom of the housing, and an air inlet passage communicated with the housing inlet is formed between two adjacent support blocks.

10. The electric toothbrush of claim 1, wherein the handle further comprises a cover disposed in the receiving space and a second motor mounted to the cover, an air gap exists between an outer wall of the cover and an inner wall of the housing, the air gap is respectively communicated with the handle air inlet and the handle air outlet, the brush head is connected to a motor shaft of the second motor, and the lifting mechanism is connected to the second motor and drives the brush head and the second motor to move up and down.

11. The electric toothbrush according to claim 10, wherein a wireless charging transmitting coil is disposed in the accommodating cavity, a handle battery and a wireless charging receiving coil are disposed in the accommodating space, the second motor is electrically connected to the handle battery, the wireless charging receiving coil is matched with the wireless charging transmitting coil to charge the handle battery, the wireless charging transmitting coil is annularly disposed on an outer periphery of the seat shell air outlet, and the wireless charging receiving coil is annularly disposed on an outer periphery of the handle air inlet.

12. The electric toothbrush according to claim 10, wherein the lifting mechanism comprises a third motor, a gear and a rack, the third motor and the second motor are fixed by the fixing sleeve, the fixing sleeve can slide along the extending direction of the housing, the gear is sleeved on the motor shaft of the second motor and can rotate along with the motor shaft, and the rack is fixed in the housing and meshed with the gear.

13. The powered toothbrush as defined in claim 12, wherein one of the outer wall of the pouch and the inner wall of the housing is provided with a sliding groove, and the other is correspondingly provided with a protruding strip slidably engaged with the sliding groove, and the sliding groove and the protruding strip both extend along the extending direction of the housing.