CN214632460U

CN214632460U - Electric toothbrush

Info

Publication number: CN214632460U
Application number: CN202023145204.4U
Authority: CN
Inventors: 李冬保
Original assignee: Jiangxi Ruishengte Technology Co ltd
Current assignee: Jiangxi Ruishengte Technology Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-11-09
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses an electric toothbrush, include: the brush holder comprises a shell, a core shell, a transmission rod, a core assembly and a key assembly, wherein the core assembly is arranged in the core shell; the button subassembly includes button and waterproof seal, be equipped with first button hole on the core casing, waterproof seal covers first button hole, be equipped with the second button hole on the shell, the button sets up waterproof seal outside and pass through the second button hole with the shell is connected. The electric toothbrush has simple structure and good waterproof performance.

Description

Electric toothbrush

Technical Field

The utility model relates to a toothbrush field especially relates to an electric toothbrush.

Background

The electric toothbrush mainly generates high-frequency vibration to the toothbrush head through the quick rotation or vibration of the electric motor, and the toothpaste is instantly decomposed into fine foam to deeply clean teeth gaps. The existing electric toothbrush usually comprises a brush head, a machine core assembly and a brush holder barrel, wherein the machine core assembly is directly arranged in the brush holder barrel, and the waterproof structure of the electric toothbrush usually comprises silica gel arranged between the machine core assembly and the head of the brush holder barrel and a waterproof cover arranged at the bottom of the brush holder barrel. In the using process, the silica gel is not tightly pre-pressed enough, so that poor water leakage is generated, the electric toothbrush breaks down, and the user experience is greatly influenced.

In addition, electric toothbrush button part, trompil on a brush handle section of thick bamboo usually, then inlay the button and locate a brush handle section of thick bamboo and be convenient for control and use, it is used for waterproof to mould plastics the flexible glue between a button and a brush holder section of thick bamboo, because the flexible glue does not match with the core assembly in a brush holder section of thick bamboo, in case drop, water permeates the core assembly from the button position easily, damages electric toothbrush easily and influences normal use.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an electric toothbrush with simple structure and good waterproof performance.

The purpose of the utility model is realized by adopting the following technical scheme:

an electric toothbrush, comprising: the brush holder comprises a shell, a core shell, a transmission rod, a core assembly and a key assembly, wherein the core assembly is arranged in the core shell; the button subassembly includes button and waterproof seal, be equipped with first button hole on the core casing, waterproof seal covers first button hole, be equipped with the second button hole on the shell, the button sets up waterproof seal outside and pass through the second button hole with the shell is connected.

Further, the movement shell comprises a main shell and a motor shell, and a first sealing ring is arranged between the main shell and the motor shell.

Further, the motor shell is connected with the transmission rod through soft glue.

Further, the core assembly comprises a motor, an eccentric assembly, a core support, a battery, a control circuit board and a charging assembly, wherein the motor, the battery and the control circuit board are installed on the core support, a first opening is formed in the upper end of the motor shell, the transmission rod is provided with an inner cavity, a second opening is formed in the lower end of the transmission rod, the lower end of the eccentric assembly is inserted into the inner cavity of the motor shell through the first opening and connected with the motor, and the upper end of the eccentric assembly is abutted to the top of the inner cavity of the transmission rod through the second opening.

Furthermore, a switch is arranged on the control circuit board, and the button assembly is used for triggering the switch.

Further, the sealing waterproof piece is provided with a bulge used for triggering the switch.

Further, the charging assembly comprises a charging interface and a charging support, the charging interface is electrically connected with the control circuit board, and the charging support is connected with the movement support.

Further, a second sealing ring is arranged between the charging support and the main shell.

Further, the charging interface is a waterproof USB interface.

Further, the shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are connected in a clamping mode.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model can completely cover the core assembly in the sealed space formed by the core shell by arranging the core shell in the brush holder shell, thereby achieving better waterproof effect; the sealing waterproof piece is covered on the first key hole of the machine core shell, and the key is arranged on the outer side of the sealing waterproof piece and is connected with the shell through the second key hole, so that water is prevented from entering the machine core assembly from the key; the transmission rod and the machine core shell are connected together through soft rubber, so that no gap exists between the transmission rod and the machine core shell, the defect that water enters the machine core assembly from the head of the brush handle due to the tolerance of the soft rubber in the prior art can be overcome, and the waterproof effect is better.

Drawings

Fig. 1 is a schematic view of an electric toothbrush provided by the present invention;

fig. 2 is a sectional view of an electric toothbrush provided by the present invention;

fig. 3 is an exploded view of an electric toothbrush provided by the present invention;

in the figure: 10. a brush head; 101. soft glue tongue scraping; 20. a brush handle; 21. a housing; 210. an upper housing; 2101. a light guide post hole; 211. a lower housing; 22. a movement housing; 220. a light guide pillar; 221. a main housing; 222. a motor housing; 23. a transmission rod; 24. a movement assembly; 240. a motor; 241. an eccentric assembly; 242. a movement bracket; 243. a battery; 244. a control circuit board; 245. a switch; 246. a light emitting element; 247. a charging interface; 248. a charging cradle; 249. a second seal ring; 25. a first light shielding member; 26. soft gum is carried out; 27. a first seal ring; 28. a key assembly; 280. pressing a key; 281. sealing the waterproof piece; 282. a second key hole; 29. a second light shielding member.

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 the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "one," "another," and the like are used to distinguish similar elements, and these terms and other similar terms are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. Corresponding reference numerals are used throughout the figures to indicate corresponding or corresponding elements (e.g., elements identified as "1 XX" and "2 XX" are structurally identical and functionally similar).

As shown in fig. 1-3, the present invention provides an electric toothbrush, comprising: the toothbrush comprises a toothbrush head 10 and a toothbrush handle 20 detachably connected with the toothbrush head 10, wherein the toothbrush handle 20 comprises a shell 21, a machine core shell 22, a transmission rod 23, a machine core component 24 and a key component 28, the machine core component 24 is arranged in the machine core shell 22, the shell 21 is sleeved outside the machine core shell 22, the upper end of the machine core shell 22 is connected with the transmission rod 23, and soft glue 26 is arranged between the machine core shell 22 and the transmission rod 23; the key assembly 28 includes a key 280 and a waterproof seal 281, the movement housing 22 is provided with a first key hole, the waterproof seal 281 covers the first key hole, the casing 21 is provided with a second key hole 282, and the key 280 is disposed outside the waterproof seal 281 and connected to the casing 21 through the second key hole 282.

In this embodiment, the brush head 10 generally comprises an elongated neck and a head for cleaning the teeth, the head being provided with a soft tongue scraper 101. The brush handle 20 comprises a shell 21, the shell 21 comprises an upper shell 210 and a lower shell 211, the upper shell 210 and the lower shell 211 are connected in a clamping mode to form an inner cavity, and a movement shell 22 is arranged in the inner cavity. The movement assembly 24 includes a motor 240, an eccentric assembly 241, a movement bracket 242, a battery 243, a control circuit board 244 and a charging assembly, the motor 240, the battery 243 and the control circuit board 244 are mounted on the movement bracket 242, the control circuit board 244 is provided with a switch 245, the key assembly 28 is used for activating the switch 245, and the control circuit board 244 is provided with a start/stop switch and/or a mode selection switch.

An injection molding groove is formed in the outer wall of the outer side of the movement shell 22, and a first key hole is formed in the injection molding groove, so that the switch 245 can be seen. A sealing waterproof part 281 is formed in the injection molding groove in an injection molding manner, and the sealing waterproof part 281 is filled in the injection molding groove, is tightly matched with the injection molding groove and covers the first key hole. The case 21 is provided with a second key hole 282, and the key 280 is disposed outside the waterproof seal 281 and connected to the case 21 through the second key hole 282. Optionally, the movement housing 22 is connected with the waterproof sealing member 281 by in-mold injection, so as to avoid a gap between the two. Through being connected as an organic whole with waterproof seal 281 and core housing 22, reached seamless purpose between waterproof seal 281 and core housing 22 to realized core housing 22's internal seal, avoided outside liquid to permeate core housing 22 through the clearance of switch 245 button department inside, effectively protected motor 240 and electronic components in core housing 22, safety, reliability are high. In addition, the inner wall of the housing 21 is provided with a key mounting groove and a second key hole 282, the key 280 is circumferentially provided with an annular protrusion, and the annular protrusion is buckled into the key mounting groove to enable the key body to enter the second key hole 282, so that the key 280 is mounted on the housing 21. The key 280 is engaged with the casing 21 through the second key hole 282, so as to block most of the water flow, and further prevent the waterproof seal 281 from deforming and failing in a wet environment for a long time. The waterproof seal 281 is provided with a projection for activating the switch 245. When the button 280 is pressed by a finger, the waterproof seal 281 is pressed to move downward, so that the protrusion also moves downward, and the switch 245 can be a touch switch and the waterproof seal 281 can be soft rubber by touching the switch 245 with the protrusion.

In one embodiment, the movement housing 22 includes a main housing 221 and a motor housing 222, the motor housing 222 has a first opening at an upper end, the transmission rod 23 has an inner cavity and a second opening at a lower end, the lower end of the eccentric member 241 is inserted into the inner cavity of the motor housing 222 through the first opening and connected to the motor 240, and the upper end of the eccentric member 241 abuts against the top of the inner cavity of the transmission rod 23 through the second opening. In order to further improve the waterproof performance of the electric toothbrush, a first sealing ring 27 is arranged between the main shell 221 and the motor shell 222; optionally, the motor housing 222 and the transmission rod 23 are connected by a soft glue 26.

In one embodiment, the electric toothbrush further comprises a charging assembly, the charging assembly comprises a charging interface 247 and a charging bracket 248, the charging interface 247 is electrically connected with the control circuit board 244, the charging bracket 248 is connected with the movement bracket 242, and a second sealing ring 249 is arranged between the charging bracket 248 and the main shell 221.

Optionally, the charging interface 247 is a waterproof USB interface.

Optionally, a light emitting element 246 is disposed on the control circuit board 244, a light guide pillar 220 is correspondingly disposed on the movement housing 22, a light guide pillar hole 2101 is further disposed on one side of the housing 21 corresponding to the light guide pillar 220, and light emitted by the light emitting element 246 is seen by a user through the light guide pillar 220 and the light guide pillar hole 2101 in sequence.

Optionally, the electric toothbrush further comprises a first shade 25, wherein the first shade 25 is disposed around the light emitting elements 246 and limits the light of each light emitting element 246 to the light guide bar 220 associated therewith.

Optionally, the electric toothbrush further comprises a second shade 29, the second shade 29 being disposed around the light guide 220 and limiting the light of each light emitting element 246 passing through the light guide 220 to its associated light guide 2101.

In this embodiment, the light emitting element is electrically connected to the control circuit board 244, the light emitting element may have a plurality of light emitting elements 246, the light guiding pillar 220 is disposed at a position corresponding to the light emitting elements 246 of the movement housing 22, the light guiding pillar 220 and the movement housing 22 are formed by injection molding, no gap is left between the light guiding pillar 220 and the movement housing 22, and the waterproof effect is good; to enhance the display of the electric toothbrush, a first shade 25 is disposed around the light emitting elements 246 to confine the light of each light emitting element 246 to its associated light guide 220, a light guide 2101 is also disposed on the housing 21 on the side corresponding to the light guide 220, and when the electric toothbrush is turned on, the light guide 2101 corresponding to the selected operating mode on the housing 21 is illuminated and visible to the user; to prevent cross-talk when light propagates in the light guide 220, the electric toothbrush further comprises a second light shield 29 disposed around the light guide 220 and limiting the light of each light emitting element 246 to its associated light guide 2101, preventing cross-talk from causing the unassociated light guide 2101 to be illuminated, confusing the user. Preferably, the first shade 25 and the second shade 29 may be plastic or EVA cotton

In one embodiment, the housing 21 is made of a light-permeable material, and a coating layer for blocking light from passing through is disposed on the outer surface of the housing 21; the coating layer is provided with a laser etching area which limits a plurality of states of the electric toothbrush, and the laser etching area is a light-transmitting part. The laser etched area extends to the outer surface of the housing 21, and light generated by the light emitting element 246 can be seen by a user through the light guide bar 220, the housing 21 and the laser etched area. Optionally, a pigment coating layer can be arranged outside the coating layer, and the laser etching area extends to the outer surface of the pigment coating layer. Optionally, a plating layer may be disposed over the coating layer, with the laser etched region extending to an outer surface of the plating layer, the plating layer providing a metallic finish to the housing 21 of the electric toothbrush handle 20. Optionally, an electroplating coating and a pigment coating can be arranged outside the coating layer, and the laser etching area extends to the outer surfaces of the electroplating coating and the pigment coating. The outer surface of the paint layer, the pigment coating or the electroplating coating is also coated with protective paint.

In one embodiment, the light emitting elements 246 are LEDs. In particular, the LED has two brightness levels, one for illuminating selected indicia and a lower level for illuminating unselected indicia.

In one embodiment, the top of the light guide 220 enters the light guide hole 2101, which is simple to manufacture and assemble. The second light shading part 29 is arranged around the light guide column 220, the front side of the second light shading part is abutted against the inner side of the shell 21, the rear side of the second light shading part is abutted against the outer side of the movement shell 22, and the light cross-talk prevention effect is good.

The utility model can completely cover the core assembly 24 in the sealed space formed by the core shell 22 by arranging the core shell 22 in the shell 21 of the brush handle 20, thereby achieving better waterproof effect; by covering the sealing waterproof piece 281 on the first key hole of the movement shell 22 in a secondary injection molding manner, the key 280 is arranged outside the sealing waterproof piece 281 and connected with the shell 21 through the second key hole 282, and water is prevented from entering the movement assembly 24 from the key 280; the transmission rod 23 and the movement shell 22 are subjected to secondary injection molding by using soft glue 26, so that no gap exists between the transmission rod 23 and the movement shell 22, the defect that water enters the movement assembly 24 from the head of the brush handle 20 due to the tolerance of the soft glue 26 in the prior art can be overcome, and the waterproof effect is better.

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

Claims

1. An electric toothbrush, comprising: the brush holder comprises a shell, a core shell, a transmission rod, a core assembly and a key assembly, wherein the core assembly is arranged in the core shell; the button subassembly includes button and waterproof seal, be equipped with first button hole on the core casing, waterproof seal covers first button hole, be equipped with the second button hole on the shell, the button sets up waterproof seal outside and pass through the second button hole with the shell is connected.

2. The electric toothbrush of claim 1, wherein the cartridge housing comprises a main housing and a motor housing, and a first seal is disposed between the main housing and the motor housing.

3. The electric toothbrush of claim 2, wherein the motor housing and the drive rod are connected by a soft glue.

4. The electric toothbrush according to claim 2, wherein the core assembly comprises a motor, an eccentric assembly, a core support, a battery, a control circuit board and a charging assembly, the motor, the battery and the control circuit board are mounted on the core support, a first opening is formed in the upper end of the motor housing, the transmission rod has an inner cavity, a second opening is formed in the lower end of the transmission rod, the lower end of the eccentric assembly is inserted into the inner cavity of the motor housing from the first opening and is connected with the motor, and the upper end of the eccentric assembly abuts against the top of the inner cavity of the transmission rod through the second opening.

5. The powered toothbrush as defined in claim 4, wherein the control circuit board has a switch thereon, and the button assembly is configured to actuate the switch.

6. The powered toothbrush of claim 5, wherein the waterproof seal is provided with a protrusion for activating the switch.

7. The electric toothbrush of claim 4, wherein the charging assembly comprises a charging interface and a charging bracket, the charging interface is electrically connected to the control circuit board, and the charging bracket is connected to the movement bracket.

8. The powered toothbrush as defined in claim 7, wherein a second seal is disposed between the charging stand and the main housing.

9. The electric toothbrush of claim 7, wherein the charging interface is a waterproof USB interface.

10. The powered toothbrush of claim 1, wherein the housing comprises an upper shell and a lower shell, the upper shell and the lower shell being snap-fit.