WO2021003850A1 - 防水智能电动牙刷 - Google Patents

防水智能电动牙刷 Download PDF

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Publication number
WO2021003850A1
WO2021003850A1 PCT/CN2019/107685 CN2019107685W WO2021003850A1 WO 2021003850 A1 WO2021003850 A1 WO 2021003850A1 CN 2019107685 W CN2019107685 W CN 2019107685W WO 2021003850 A1 WO2021003850 A1 WO 2021003850A1
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WO
WIPO (PCT)
Prior art keywords
hole
handle
output shaft
electric toothbrush
drive motor
Prior art date
Application number
PCT/CN2019/107685
Other languages
English (en)
French (fr)
Inventor
徐新华
Original Assignee
广东百事泰电子商务股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201910625900.8A external-priority patent/CN110236722A/zh
Priority claimed from CN201921088601.7U external-priority patent/CN211156414U/zh
Application filed by 广东百事泰电子商务股份有限公司 filed Critical 广东百事泰电子商务股份有限公司
Publication of WO2021003850A1 publication Critical patent/WO2021003850A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like

Definitions

  • the invention relates to a toothbrush, in particular to a waterproof intelligent electric toothbrush.
  • Electric toothbrushes through the rapid rotation or vibration of the motor core, make the brush head produce high-frequency vibration, instantly decompose the toothpaste into fine foam, and clean the teeth deeply.
  • the vibration of the bristles can promote the blood circulation of the oral cavity and affect the gum tissue. Has a massage effect.
  • the present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, the purpose of the present invention is to provide a waterproof smart electric toothbrush.
  • the waterproof smart electric toothbrush according to the embodiment of the present invention includes:
  • a handle the handle has a hollow structure and has a first end and a second end, and the first end has a first through hole;
  • the soft rubber part is located in the handle and is integrally formed with the handle by injection molding, the soft rubber part includes a cap body, the cap body is sleeved in the first through hole, the The cap body has a shaft hole, the shaft hole coincides with the axis of the first through hole; a drive motor, the drive motor is arranged in the handle, and the output shaft of the drive motor penetrates from the shaft hole.
  • the toothbrush head is connected, and the shaft hole is tightly matched with the output shaft of the drive motor.
  • the soft rubber part and the handle are injection molded into one body, and the soft rubber part includes a cap body which is sleeved and tightly fitted with the output shaft of the drive motor.
  • the soft rubber part includes a cap body which is sleeved and tightly fitted with the output shaft of the drive motor.
  • waterproof smart electric toothbrush may also have the following additional technical features:
  • the cap body includes a cylindrical portion
  • the shaft hole includes a cylindrical hole penetrating the cylindrical portion
  • the output shaft of the driving motor is tightly fitted with the cylindrical hole
  • the peripheral wall of the cylindrical hole has an annular sealing portion protruding inwardly in the radial direction
  • the peripheral wall of the output shaft of the drive motor has an annular locking groove, and the annular sealing portion seals Fit in the annular card slot.
  • the cap body further includes a cone part, the cone part is injection-molded on the inner wall of the first through hole; the end of the cylinder part away from the toothbrush head has a diameter An annular shoulder portion protruding to the outside is formed, and the annular shoulder portion is connected to the tapered portion.
  • it further includes:
  • a bracket the bracket is installed in the handle, one end of the bracket adjacent to the first end has a frustum portion protruding in the direction of the first through hole, and the frustum portion has a through hole;
  • the driving motor is arranged on the bracket, and the output shaft of the driving motor passes through the through hole;
  • the shaft hole also includes a tapered hole penetrating the cone portion and communicating with the cylindrical hole, the frustum portion is tightly fitted with the tapered hole, and the frustum portion is close to the first One end of the through hole abuts against the annular shoulder.
  • it further includes:
  • a compression sleeve the compression sleeve is sleeved outside the cylindrical portion, and the cylindrical portion is tightened inward on the output shaft of the drive motor.
  • one end of the compression sleeve has a clamping edge protruding inward in the radial direction, a positioning slot is provided on the peripheral wall of the output shaft of the drive motor, and the clamping edge is clamped in In the positioning slot, the other end of the compression sleeve is sleeved outside the column part.
  • a button hole is provided on the handle, and a button cap is arranged in the button hole;
  • the soft rubber part further includes a shielding sheet body, the shielding sheet is injection-molded on the inner peripheral wall of the handle and sealing the button hole, one end of the shielding sheet is connected to the cap, the shielding sheet The other end of the body extends along the length of the handle;
  • a circuit board is arranged in the handle, and a key switch opposite to the key hole is arranged on the circuit board, and the key switch is triggered when the key cap presses the shielding sheet body.
  • the handle is provided with a lamp hole, and a filling part filled in the lamp hole is formed on the shielding sheet body;
  • the circuit board is provided with an indicator lamp opposite to the lamp hole, and the light of the indicator lamp is emitted through the filling part.
  • it further includes:
  • a wireless charging unit the wireless charging unit is arranged in the second end, the wireless charging unit includes a coil bobbin and a receiving coil wound on the coil bobbin;
  • Figure 1 is a schematic structural diagram of a waterproof smart electric toothbrush according to an embodiment of the present invention.
  • Figure 2 is a cross-sectional view of a waterproof smart electric toothbrush according to an embodiment of the present invention.
  • Figure 3 is a partial enlarged view of A in Figure 2;
  • Figure 4 is a partial enlarged view of B in Figure 2;
  • Figure 5 is an exploded view of the waterproof smart electric toothbrush of an embodiment of the present invention.
  • Fig. 6 is a schematic diagram of the structure of the soft rubber part of the waterproof smart electric toothbrush according to the embodiment of the present invention.
  • Toothbrush head 10
  • Main housing 201 Main housing 201;
  • Blocking sheet body 302
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the present invention, “plurality” means two or more than two, unless specifically defined otherwise.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. , Or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • installed can be a fixed connection or a detachable connection.
  • it can be a mechanical connection or an electrical connection
  • it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • the specific meaning of the above-mentioned terms in the present invention can be understood according to specific circumstances.
  • the "above” or “below” of the first feature of the second feature may include the first and second features in direct contact, or may include the first and second features Not in direct contact but through other features between them.
  • “above”, “above” and “above” the second feature of the first feature include the first feature being directly above and obliquely above the second feature, or it simply means that the level of the first feature is higher than the second feature.
  • the “below”, “below” and “below” the first feature of the second feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
  • the waterproof smart electric toothbrush provided according to an embodiment of the present invention includes a toothbrush head 10, a handle 20, a soft rubber part 30 and a driving motor 40.
  • the toothbrush head 10 has bristles for cleaning the toothbrush in the oral cavity.
  • the handle 20 is a hollow structure and has a first end and a second end.
  • the first end has a first through hole, that is, the handle 20 is a cylindrical member, and the first end and the second end are the axial direction of the cylindrical member. The ends.
  • the handle 20 can be held by the user during use.
  • the handle 20 is made of hard plastic with certain hardness, such as PC (polycarbonate) material, ABS (acrylonitrile-butadiene-styrene) material, etc.
  • the soft rubber member 30 is located in the handle 20 and is integrally molded with the handle 20.
  • the soft rubber member 30 includes a cap body 301 that is fitted in the first through hole.
  • the cap body 301 has a shaft hole, and the shaft hole coincides with the axis of the first through hole.
  • the soft rubber part 30 adopts a softer rubber material, such as silicone material or rubber material, which is softer than the handle 20.
  • the soft rubber part 30 is located inside the handle 20 and is combined with the handle 20 through an injection molding process (for example, secondary molding)
  • the handle 20 is injection molded into one body.
  • the soft rubber member 30 at least includes a cap body 301 located in the first through hole at the first end, and the cap body 301 has a shaft hole coaxial with the first through hole.
  • the drive motor 40 is arranged in the handle 20, the output shaft 401 of the drive motor 40 is connected to the toothbrush head 10 after passing through the shaft hole, and the shaft hole is connected to the output shaft 401 of the drive motor 40 Tight fit, that is, the diameter of the output shaft 401 of the drive motor 40 is smaller than the diameter of the shaft hole on the cap body 301, and the output shaft 401 of the drive motor 40 is tightly fitted in the shaft hole of the cap body 301.
  • 301 is a soft rubber material with certain elasticity. Therefore, the hole wall of the shaft hole is kept tightly attached to the outer peripheral wall of the output shaft 401 of the drive motor 40, thereby achieving a good sealing effect.
  • a waterproof ring is sleeved on the output shaft of the motor, and during assembly, it is necessary to use other resisting parts to press the waterproof ring against the end of the handle.
  • the structure can achieve a certain degree of waterproof effect.
  • toothpaste and other contaminants are in contact with the waterproof ring for a long time.
  • the gap between the output shaft of the motor and the end of the handle enters into the handle, and the waterproof effect is getting worse and worse.
  • the soft rubber part 30 and the handle 20 are injection-molded into one body, and the soft rubber part 30 includes a cap body 301 which is sleeved with the output shaft 401 of the drive motor 40 and Tight fit, so that there is no gap between the cap body 301 and the first through hole of the first end, which can achieve a better waterproof effect. It is difficult for external water to penetrate into the handle 20 through the output shaft 401 of the drive motor 40, and then It can ensure that the working performance of the waterproof smart electric toothbrush is more stable and reliable, is not prone to failure (for example, the circuit board 23 is burned out, etc.), and has a longer service life.
  • the soft rubber part 30 is located in the handle 20 and is integrally molded with the handle 20, when assembling, only the output shaft 401 of the driving motor 40 needs to be inserted into the cap body 301, which is convenient and simple to assemble.
  • the handle 20 includes a main housing 201 and a sleeve 202.
  • the sleeve 202 is sleeved at one end of the main housing 201.
  • the sleeve 202 can be used as a decorative part to make the appearance of the waterproof smart electric toothbrush more beautiful.
  • the cap body 301 includes a cylindrical portion 3011, the shaft hole includes a cylindrical hole penetrating the cylindrical portion 3011, the output shaft of the drive motor 40 401 is tightly fitted with the cylindrical hole. In this way, the cylindrical hole on the cylindrical portion 3011 is tightly fitted with the output shaft 401 of the drive motor 40 to achieve a waterproof sealing effect.
  • the peripheral wall of the cylindrical hole has an annular sealing portion 3011a protruding inward in the radial direction
  • the peripheral wall of the output shaft 401 of the drive motor 40 has an annular groove 4011
  • the annular sealing portion 3011a seals Fits in the annular groove 4011.
  • the annular sealing portion 3011a protruding inward on the peripheral wall of the cylindrical hole is clamped in the annular groove 4011 on the output shaft 401 of the drive motor 40.
  • the cooperation of the annular sealing portion 3011a and the annular groove 4011 is used.
  • the water penetration path is extended, and the path is more tortuous, thus, the sealing effect can be significantly improved.
  • the cooperation of the annular sealing portion 3011a and the annular groove 4011 can also make the cap 301 axially opposite The output shaft 401 of the driving motor 40 is kept relatively fixed, so as to ensure that the cap body 301 and the output shaft 401 of the driving motor 40 cooperate more reliably.
  • the matching structure of the annular sealing portion 3011a of the peripheral wall of the cylindrical hole and the annular groove 4011 of the output shaft 401 of the drive motor 40 is an added structure to further improve the waterproof sealing effect, rather than a necessary structure, in other words , The matching structure may not be required.
  • the cap body 301 further includes a cone portion 3012, the cone portion 3012 is injection molded on the inner wall of the first through hole; the cylinder
  • the end of the portion 3011 away from the toothbrush head 10 has an annular shoulder 3013 formed radially outwardly, and the annular shoulder 3013 is connected to the tapered portion.
  • the cone portion 3012 is injection-molded on the inner wall of the first through hole, and the cone portion 3012 is connected to the end of the cylindrical portion 3011 away from the toothbrush head 10 through the annular shoulder 3013, preferably, the cone portion 3012 ,
  • the annular shoulder portion 3013 and the column portion 3011 are integrally formed. In this way, it can be ensured that the cap body 301 and the inner wall of the first through hole are integrally structured to ensure a good waterproof sealing effect.
  • bracket 50 installed in the handle 20, and one end of the bracket 50 adjacent to the first end has A frustum portion protruding in the direction of the first through hole, the frustum portion has a through hole 5011; the drive motor 40 is arranged on the bracket 50, and the output shaft 401 of the drive motor 40 passes through the ⁇ through hole 5011.
  • the shaft hole also includes a tapered hole that penetrates the cone portion 3012 and communicates with the cylindrical hole, the frustum portion is tightly fitted with the tapered hole, and the frustum portion is close to the first through hole.
  • One end of the hole abuts against the annular shoulder 3013.
  • the bracket 50 is installed in the handle 20, the drive motor 40 is installed on the bracket 50, and one end of the bracket 50 has a cone 501 protruding in the direction of the first through hole, and the cone 501 is fitted with
  • the tapered hole on the cone portion 3012 forms a tight fit, and the output shaft 401 of the drive motor 40 passes through the through hole 5011 on the tapered table 501 and then extends into the cylindrical hole.
  • the taper table 501 is tightly fitted with the taper hole on the taper portion 3012, so that the taper portion 3012 is pressed against the hole wall of the first through hole, and the taper portion 3012 and the handle 20 are further improved.
  • the bonding strength between them improves the waterproof sealing effect.
  • the bracket 50 is inserted into the handle 20 until the cone 501 abuts the annular shoulder 3013, and the assembly is simple and convenient.
  • it further includes a compression sleeve 60, the compression sleeve 60 is sleeved outside the column portion 3011, and the column portion 3011 It is tightened inward on the output shaft 401 of the driving motor 40.
  • the diameter of the compression sleeve 60 is smaller than the diameter of the cylinder portion 3011, and the cylinder portion 3011 is tightly fitted in the compression sleeve 60 and is in a compressed state. In this way, the cylinder portion 3011 inwardly wraps the drive motor 40.
  • the output shaft 401 of the drive motor 40 makes the column 3011 and the output shaft 401 of the drive motor 40 more closely fit, and the waterproof effect is better.
  • the compression sleeve 60 can be made of a hard plastic or metal material with a higher hardness than that of the cylinder portion 3011. In this way, the compression sleeve 60 has a better compression and tightening effect on the cylinder portion 3011. .
  • it further includes a tightening spring 61, which is sleeved outside the cylindrical portion 3011 and provides an inward elastic force, In order to tighten the column portion 3011 on the output shaft 401 of the drive motor 40.
  • the compression sleeve 60 is sleeved outside the tension spring 61, and the tension spring 61 abuts against the inner wall of the compression sleeve 60.
  • a tightening spring 61 is firstly sheathed on the cylindrical portion 3011, the inner diameter of the tightening spring 61 is smaller than the outer diameter of the cylindrical portion 3011, and the tightening spring 61 is sleeved on the cylindrical portion 3011 When it is outside, the cylindrical portion 3011 is tightened on the outer peripheral wall of the output shaft 401 of the drive motor 40 by the elastic force generated when the tightening spring 61 contracts.
  • the compression sleeve 60 is used to exert a radial inward force on the tension spring 61, so that the tension spring 61 and the output shaft 401 of the drive motor 40 are more closely matched. close.
  • one end of the compression sleeve 60 has a card edge 601 protruding inwardly in the radial direction.
  • the peripheral wall of the output shaft 401 of the drive motor 40 has a positioning card slot 4012, and the card edge 601 is provided with In the positioning slot 4012, the other end of the compression sleeve 60 is sleeved outside the column portion 3011.
  • the compression sleeve 60 can be relatively fixed to the output shaft 401 of the driving motor 40 in the axial direction, and then It is ensured that the fit between the compression sleeve 60, the cylindrical portion 3011 and the tightening spring 61 is more stable and reliable.
  • a button hole H20 is provided on the handle 20, and a button cap 21 is provided in the button hole H20.
  • the soft rubber member 30 also includes a shielding sheet 302, which is injection-molded on the inner peripheral wall of the handle 20 and closes the button hole H20, and one end of the shielding sheet 302 is connected to the cap body 301 , The other end of the shielding sheet 302 extends along the length direction of the handle 20.
  • the handle 20 is provided with a circuit board 23.
  • the circuit board 23 is provided with a key switch 231 opposite to the key hole H20. The key switch 231 is triggered when the key cap 21 presses the shielding sheet 302 .
  • the shielding sheet 302 is used to shield and close the button hole H20
  • the button cap 21 is provided on the button hole H20
  • the button switch 231 on the circuit board 23 in the handle 20 is located inside the shielding sheet 302.
  • the button hole H20 is completely sealed by the shielding plate 302, and external water cannot enter the handle 20 through the button hole H20, thereby achieving a better waterproof effect, ensuring more stable and reliable performance and long service life.
  • the shielding sheet body 302 is made of soft rubber material with certain elasticity, after the button cap 21 is released, the shielding sheet body 302 resumes deformation, which can force the button cap 21 to quickly reset, thereby improving the pressing texture of the button cap 21.
  • the handle 20 is provided with a lamp hole, and the shielding sheet 302 is formed with a filling portion 3021 filled in the lamp hole;
  • the board 23 is provided with an indicator light 232 opposite to the light hole, and the light of the indicator light 232 is emitted through the filling part 3021.
  • the filling portion 3021 on the shielding sheet 302 in the lamp hole is filled and sealed, and external water cannot enter the handle 20 through the lamp hole, thereby achieving a better waterproof effect, ensuring more stable and reliable performance and long service life.
  • the indicator light 232 is located inside the filling part 3021 and can protect the indicator light 232.
  • the soft rubber member 30 can be made of a light-transmitting material, for example, a light-transmitting silicone material, so that the light emitted by the indicator light 232 can be emitted through the filling part 3021.
  • a light-transmitting material for example, a light-transmitting silicone material
  • the wireless charging unit 70 in an embodiment of the present invention, it further includes a wireless charging unit 70 and a cover 80, the wireless charging unit 70 is provided in the second end, and the wireless charging unit 70 It includes a coil bobbin 701 and a receiving coil wound on the coil bobbin 701.
  • the cover 80 is sealed on the second end.
  • an energy storage battery 71 is also provided in the handle 20, and the energy storage battery 71 can receive the electric energy transmitted by the wireless charging unit 70.
  • the wireless charging unit 70 can receive electric energy, and then the energy storage battery 71 can be charged through the wireless charging unit 70, which makes charging more convenient.
  • the energy storage battery 71 and the circuit board 23 can be installed on the bracket 50, and the coil bobbin 701 and the bracket 50 can be formed as one body.
  • the charging unit 70 is assembled to form an integral part, and the integral part is directly installed into the handle 20 during assembly. In this way, the structure is simpler and more compact, and the assembly is more convenient.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Brushes (AREA)

Abstract

一种防水智能电动牙刷，包括牙刷头(10)、手柄(20)、软胶件(30)及驱动电机(40)，手柄(20)为中空结构且具有第一端和第二端，第一端具有第一通孔；软胶件(30)位于手柄(20)内且与手柄(20)注塑成型为一体，软胶件(30)包括帽体(301)，帽体(301)套配于第一通孔内，帽体(301)具有轴孔，轴孔与第一通孔轴线重合；驱动电机(40)设在手柄(20)内，驱动电机(40)的输出轴(401)自轴孔穿出后与牙刷头(10)连接，轴孔与驱动电机(40)的输出轴(401)紧配合，从而使得帽体(301)与驱动电机(40)的输出轴(401)套接且紧配合。如此可以起到更好的防水效果，水难以通过驱动电机(40)的输出轴(401)渗入至手柄(20)内，进而可以确保该防水智能电动牙刷的工作性能更加稳定可靠，不易发生故障，使用寿命更长。

Description

防水智能电动牙刷 技术领域
本发明涉及牙刷，尤其涉及一种防水智能电动牙刷。
背景技术
电动牙刷，通过电动机芯的快速旋转或震动，使刷头产生高频震动，瞬间将牙膏分解成细微泡沫，深入清洁牙缝，与此同时，刷毛的颤动能促进口腔的血液循环，对牙龈组织有按摩效果。
现如今，电动牙刷市场使用量日益增大，然而，相关技术中，电动牙刷的防水性能较差，水容易从电机的输出轴渗入至电动牙刷的内部，使电路板故障或烧坏，其性能不稳定，使用寿命缩短。
发明内容
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本发明的目的在于提出一种防水智能电动牙刷。
为实现上述目的，根据本发明实施例的防水智能电动牙刷，包括：
牙刷头；
手柄，所述手柄为中空结构且具有第一端和第二端，所述第一端具有第一通孔；
软胶件，所述软胶件位于所述手柄内且与所述手柄注塑成型为一体，所述软胶件包括帽体，所述帽体套配于所述第一通孔内，所述帽体具有轴孔，所述轴孔与所述第一通孔轴线重合；驱动电机，所述驱动电机设在所述手柄内，所述驱动电机的输出轴自所述轴孔穿出后与所述牙刷头连接，所述轴孔与所述驱动电机的输出轴紧配合。
根据本发明实施例提供的防水智能电动牙刷，软胶件与手柄注塑成型为一体，并且，软胶件包括帽体，该帽体与驱动电机的输出轴套接且紧配合，如此，可以起到更好的防水效果，外部的水难以通过驱动电机的输出轴渗入至手柄内，进而可以确保该防水智能电动牙刷的工作性能更加稳定可靠，不易发生故障(例如电路板烧坏等)，使用寿命更长。
另外，根据本发明上述实施例的防水智能电动牙刷还可以具有如下附加的技术特征：
根据本发明的一个实施例，所述帽体包括柱体部，所述轴孔包括贯穿所述柱体部的柱形孔，所述驱动电机的输出轴与所述柱形孔紧配合。
根据本发明的一个实施例，所述柱形孔的周壁具有沿径向向内凸出形成的环形密封 部，所述驱动电机的输出轴的周壁上具有环形卡槽，所述环形密封部密封配合在所述环形卡槽内。
根据本发明的一个实施例，所述帽体还包括锥体部，所述锥体部注塑成型于所述第一通孔的内壁；所述柱体部远离所述牙刷头的一端具有沿径向向外侧凸出形成的环形肩部，所述环形肩部与所述锥形部相连。
根据本发明的一个实施例，还包括：
支架，所述支架装设于所述手柄内，所述支架上邻近所述第一端的一端具有向所述第一通孔方向凸出的锥台部，所述锥台部具有贯穿孔；所述驱动电机设在所述支架上，所述驱动电机的输出轴穿过所述贯穿孔；
所述轴孔还包括贯穿所述锥体部且与所述柱形孔相通的锥形孔，所述锥台部与所述锥形孔紧配合，且所述锥台部靠近所述第一通孔的一端与所述环形肩部相抵。
根据本发明的一个实施例，还包括：
压紧套，所述压紧套套设在所述柱体部外，且将所述柱体部向内束紧在所述驱动电机的输出轴上。
根据本发明的一个实施例，所述压紧套的一端具有沿径向向内侧凸出形成的卡沿，所述驱动电机的输出轴的周壁上具有定位卡槽，所述卡沿卡设在所述定位卡槽内，所述压紧套的另一端套设在所述柱体部外。
根据本发明的一个实施例，所述手柄上设有按键孔，所述按键孔内设有按键帽；
所述软胶件还包括遮挡片体，所述遮挡片体注塑成型于所述手柄的内周壁且封闭所述按键孔，所述遮挡片体的一端与所述帽体相连，所述遮挡片体的另一端沿所述手柄的长度方向延伸；
所述手柄内设有电路板，所述电路板上设有与所述按键孔相对的按键开关，所述按键开关在所述按键帽按压所述遮挡片体时被触发。
根据本发明的一个实施例，所述手柄设有灯孔，所述遮挡片体上形成有填充在所述灯孔内的填充部；
所述电路板上设有与所述的灯孔相对的指示灯，所述指示灯的光线经由所述填充部射出。
根据本发明的一个实施例，还包括：
无线充电单元，所述无线充电单元设在所述第二端内，所述无线充电单元包括线圈骨架及绕制在所述线圈骨架上接收线圈；
盖体，所述盖体密封盖合在所述第二端。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1是本发明实施例防水智能电动牙刷的结构示意图；
图2是本发明实施例防水智能电动牙刷的剖视图；
图3是图2中A处的局部放大图；
图4是图2中B处的局部放大图；
图5是本发明实施例防水智能电动牙刷的分解图；
图6是本发明实施例防水智能电动牙刷中软胶件的结构示意图。
附图标记：
牙刷头10；
手柄20；
主壳体201；
套壳202；
按键孔H20；
按键帽21；
电路板23；
按键开关231；
指示灯232；
软胶件30；
帽体301；
柱体部3011；
环形密封部3011a；
锥体部3012；
环形肩部3013；
遮挡片体302；
填充部3021；
驱动电机40；
输出轴401；
环形卡槽4011；
定位卡槽4012；
支架50；
锥形台501；
贯穿孔5011；
压紧套60；
卡沿601；
束紧弹簧61；
无线充电单元70；
线圈骨架701；
储能电池71；
盖体80。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制，基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”“轴向”、“周向”、“径向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示 或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下面参照附图详细描述本发明实施例的防水智能电动牙刷。
参照图1至图6所示，根据本发明实施例提供的防水智能电动牙刷，包括牙刷头10、手柄20、软胶件30及驱动电机40。
具体的，牙刷头10上具有刷毛，用于清洁口腔内的牙刷。
手柄20为中空结构且具有第一端和第二端，所述第一端具有第一通孔，也即是，手柄20为筒状件，第一端和第二端为筒状件轴向的两端。手柄20可以供用户使用时握持，一般的，手柄20采用具有一定硬度的硬质塑料，例如PC(聚碳酸酯)材料，ABS(丙烯晴-丁二烯-苯乙烯)材料等。
软胶件30位于所述手柄20内且与所述手柄20注塑成型为一体，所述软胶件30包括帽体301，所述帽体301套配于所述第一通孔内，所述帽体301具有轴孔，所述轴孔与所述第一通孔轴线重合。
也就是说，软胶件30采用相对于手柄20更软的软胶材料，例如硅胶材料或橡胶材料等，该软胶件30位于手柄20内部，并且通过注塑成型工艺(例如二次成型)与手柄20注塑成型为一体。该软胶件30至少包括一帽体301，该帽体301位于第一端的第一通孔内，并且，帽体301具有与第一通孔同轴的轴孔。
驱动电机40设在所述手柄20内，所述驱动电机40的输出轴401自所述轴孔穿出后与所述牙刷头10连接，所述轴孔与所述驱动电机40的输出轴401紧配合，也即是，驱动电 机40的输出轴401的直径小于帽体301上轴孔的直径，驱动电机40的输出轴401紧配合在帽体301的轴孔内，此时，由于帽体301为软胶材料，具有一定的弹性，所以，轴孔的孔壁保持紧密贴合在驱动电机40的输出轴401的外周壁上，进而达到良好的密封效果。
相关技术中，为了提高电动牙刷防水性能，在电机的输出轴上套设防水圈，并且，在装配时，需要采用其他抵持件，将防水圈抵持压紧在手柄的端部，这种结构，能够起到一定程度的防水效果，但是，一方面，伴随着电机的振动及使用时间较长，牙膏及其他污染物与防水圈长时间接触，导致防水圈老化，水容易容防水圈与电机的输出轴及手柄的端部之间的缝隙进入至手柄内，防水效果越来越差；另一方面，在装配时，需要将防水圈装入至手柄内的端部，并通过抵持件将防水圈与手柄的端部压紧，否则会漏水，很显然，其装配复杂，可靠性低。
根据本发明实施例提供的防水智能电动牙刷，软胶件30与手柄20注塑成型为一体，并且，软胶件30包括帽体301，该帽体301与驱动电机40的输出轴401套接且紧配合，如此，帽体301与第一端的第一通孔之间没有间隙，可以起到更好的防水效果，外部的水难以通过驱动电机40的输出轴401渗入至手柄20内，进而可以确保该防水智能电动牙刷的工作性能更加稳定可靠，不易发生故障(例如电路板23烧坏等)，使用寿命更长。
此外，由于软胶件30位于手柄20内并与手柄20注塑为一体，所以，在装配时，只需要将驱动电机40的输出轴401穿入至帽体301即可，其装配方便简单。
在一个示例中，手柄20包括主壳体201及套壳202，套壳202套设在主壳体201的一端，套壳202可以作为装饰件，使得该防水智能电动牙刷的外观更加美观。
参照图2及图3所示，在本发明的一个实施例中，帽体301包括柱体部3011，所述轴孔包括贯穿所述柱体部3011的柱形孔，驱动电机40的输出轴401与所述柱形孔紧配合，如此，利用柱体部3011上的柱形孔与驱动电机40的输出轴401紧配合，以实现防水密封效果。
可选地，柱形孔的周壁具有沿径向向内凸出形成的环形密封部3011a，且所述驱动电机40的输出轴401的周壁上具有环形卡槽4011，所述环形密封部3011a密封配合在所述环形卡槽4011内。
也就是说，柱形孔的周壁上向内凸出的环形密封部3011a卡设在驱动电机40输出轴401上的环形卡槽4011内，如此，利用环形密封部3011a与环形卡槽4011的配合，延长了水渗透的路径，且该路径更加曲折，由此，可以使得密封效果显著提高，此外，环形密封部3011a与环形卡槽4011的配合，也可以使得帽体301在轴向上相对于驱动电机40的输出轴 401保持相对固定，确保帽体301与驱动电机40的输出轴401配合更加可靠。
需要说明的是，柱形孔的周壁的环形密封部3011a与驱动电机40的输出轴401的环形卡槽4011的配合结构，为了进一步提高防水密封效果而增加的结构，而不是必须的结构，换言之，也可以不需要该配合结构。
参照图2及图3所示，在本发明的一个实施例中，帽体301还包括锥体部3012，所述锥体部3012注塑成型于所述第一通孔的内壁；所述柱体部3011远离所述牙刷头10的一端具有沿径向向外侧凸出形成的环形肩部3013，所述环形肩部3013与所述锥形部相连。
也就是说，锥体部3012注塑成型于第一通孔的内壁，并且，锥体部3012通过环形肩部3013与柱体部3011远离牙刷头10的一端连接，较佳的，锥体部3012、环形肩部3013及柱体部3011为一体成型结构，如此，可以确保帽体301与第一通孔的内壁为一体式结构，确保其良好的防水密封效果。
参照图2至图5所示，在本发明的一些实施例中，还包括支架50，所述支架50装设于所述手柄20内，所述支架50上邻近所述第一端的一端具有向所述第一通孔方向凸出的锥台部，所述锥台部具有贯穿孔5011；所述驱动电机40设在所述支架50上，所述驱动电机40的输出轴401穿过所述贯穿孔5011。
轴孔还包括贯穿所述锥体部3012且与所述柱形孔相通的锥形孔，所述锥台部与所述锥形孔紧配合，且所述锥台部靠近所述第一通孔的一端与所述环形肩部3013相抵。
也就是说，支架50安装于手柄20内，驱动电机40安装于支架50上，并且，支架50上的一端具有向第一通孔方向凸出的锥形台501，该锥形台501套配在锥体部3012上的锥形孔孔并形成紧配合，而驱动电机40的输出轴401自锥形台501上的贯穿孔5011穿过后伸入至柱形孔内。
本实施例中，利用锥形台501与锥体部3012上锥形孔紧配合，可以使得锥体部3012被压紧在第一通孔的孔壁上，进一步提高锥体部3012与手柄20之间的结合强度，提高防水密封效果。此外，装配时，将驱动电机40安装至支架50之后，将支架50穿入至手柄20内直至锥形台501与环形肩部3013相抵即可，其装配简单方便。
参照图2及图3所示，在本发明的一些实施例中，还包括压紧套60，所述压紧套60套设在所述柱体部3011外，且将所述柱体部3011向内束紧在所述驱动电机40的输出轴401上。
也就是说，压紧套60的直径小于柱体部3011的直径，柱体部3011紧配合于压紧套60内且处于被挤压状态，如此，柱体部3011向内包裹住驱动电机40的输出轴401，使得柱 体部3011与驱动电机40的输出轴401之间配合更加紧密，防水效果更好。
较佳地，该压紧套60可以采用具有相对于柱体部3011硬度更高的硬质塑料或金属材料制成，如此，压紧套60对柱体部3011的挤压束紧效果更好。
参照图2及图3所示，在本发明的一个实施例中，还包括束紧弹簧61，所述束紧弹簧61套设在所述柱体部3011外且提供向内的弹性作用力，以将所述柱体部3011束紧在所述驱动电机40的输出轴401上。压紧套60套设在所述束紧弹簧61外，且所述束紧弹簧61与所述压紧套60的内壁相抵。
也就是说，在本实施例中，先在柱体部3011外套设一束紧弹簧61，束紧弹簧61的内径小于柱体部3011的外径，束紧弹簧61套设在柱体部3011外时，利用束紧弹簧61收缩时产生的弹性作用力，将柱体部3011束紧在驱动电机40的输出轴401的外周壁上。再在将压紧套60套设在束紧弹簧61外，利用压紧套60对束紧弹簧61施加径向向内的作用力，使得束紧弹簧61与驱动电机40的输出轴401配合更加紧密。
更为有利地，压紧套60的一端具有沿径向向内侧凸出形成的卡沿601，所述驱动电机40的输出轴401的周壁上具有定位卡槽4012，所述卡沿601卡设在所述定位卡槽4012内，所述压紧套60的另一端套设在所述柱体部3011外。
如此，利用压紧套60上的卡沿601与驱动电机40的输出轴401上的定位卡槽4012配合，可以使得压紧套60在轴向上与驱动电机40的输出轴401相对固定，进而确保压紧套60与柱体部3011及束紧弹簧61之间的配合更加稳定可靠。
参照图2所示，在本发明的一些实施例中，手柄20上设有按键孔H20，所述按键孔H20内设有按键帽21。软胶件30还包括遮挡片体302，所述遮挡片体302注塑成型于所述手柄20的内周壁且封闭所述按键孔H20，所述遮挡片体302的一端与所述帽体301相连，所述遮挡片体302的另一端沿所述手柄20的长度方向延伸。手柄20内设有电路板23，所述电路板23上设有与所述按键孔H20相对的按键开关231，所述按键开关231在所述按键帽21按压所述遮挡片体302时被触发。
本实施例中，遮挡片体302用于遮挡并封闭按键孔H20，按键帽21设在按键孔H20上，而手柄20内电路板23上的按键开关231位于遮挡片体302的内侧，当用户操作按压手柄20上的按键帽21时，按键帽21沿径向向手柄20内运动，进而挤压遮挡片体302，使得遮挡片体302向内变形并触压到手柄20内的按键开关231，使得按键开关231被触发。
如此，按键孔H20被遮挡片体302完全密封，外部的水无法通过按键孔H20进入至手柄20内，进而起到更好的防水效果，确保其性能更加稳定可靠，使用寿命长。此外，由 于遮挡片体302为软胶材质具有一定弹性，在按键帽21被松开后，遮挡片体302恢复形变，可以迫使按键帽21快速复位，进而可以提高按键帽21按压质感。
参照图2、图4及图6所示，在本发明的一个实施例中，手柄20设有灯孔，所述遮挡片体302上形成有填充在所述灯孔内的填充部3021；电路板23上设有与所述的灯孔相对的指示灯232，所述指示灯232的光线经由所述填充部3021射出。
如此，灯孔内遮挡片体302上的填充部3021填充密封，外部的水无法通过灯孔进入至手柄20内，进而起到更好的防水效果，确保其性能更加稳定可靠，使用寿命长。此外，指示灯232位于填充部3021内侧，可以对指示灯232起到保护作用。
有利地，软胶件30可以采用透光材质，例如透光的硅胶材质，如此，可以使得指示灯232发出的光线能够通过填充部3021射出。
参照图2及图4所示，在本发明的一个实施例中，还包括无线充电单元70及盖体80，所述无线充电单元70设在所述第二端内，所述无线充电单元70包括线圈骨架701及绕制在所述线圈骨架701上接收线圈。盖体80密封盖合在所述第二端。可以理解的是，手柄20内还设有储能电池71，该储能电池71可以接收无线充电单元70传输的电能。
如此，当该防水智能电动牙刷的手柄20的第二端安放在无线充电座上时，无线充电单元70即可接收电能，进而通过无线充电单元70为储能电池71充电，其充电更加方便。
较佳地，储能电池71、电路板23可以安装在支架50上，而线圈骨架701与支架50可以形成为一体，如此，驱动电机40、储能电池71、电路板23、支架50及无线充电单元70组装后形成一个整体部件，在装配时，直接将该整体部件装入至手柄20内，如此，其结构更加简单紧凑，装配更加方便。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (10)

  1. 一种防水智能电动牙刷，其特征在于，包括：
    牙刷头；
    手柄，所述手柄为中空结构且具有第一端和第二端，所述第一端具有第一通孔；
    软胶件，所述软胶件位于所述手柄内且与所述手柄注塑成型为一体，所述软胶件包括帽体，所述帽体套配于所述第一通孔内，所述帽体具有轴孔，所述轴孔与所述第一通孔轴线重合；驱动电机，所述驱动电机设在所述手柄内，所述驱动电机的输出轴自所述轴孔穿出后与所述牙刷头连接，所述轴孔与所述驱动电机的输出轴紧配合。
  2. 根据权利要求1所述的防水智能电动牙刷，其特征在于，所述帽体包括柱体部，所述轴孔包括贯穿所述柱体部的柱形孔，所述驱动电机的输出轴与所述柱形孔紧配合。
  3. 根据权利要求1所述的防水智能电动牙刷，其特征在于，所述柱形孔的周壁具有沿径向向内凸出形成的环形密封部，所述驱动电机的输出轴的周壁上具有环形卡槽，所述环形密封部密封配合在所述环形卡槽内。
  4. 根据权利要求1所述的防水智能电动牙刷，其特征在于，所述帽体还包括锥体部，所述锥体部注塑成型于所述第一通孔的内壁；所述柱体部远离所述牙刷头的一端具有沿径向向外侧凸出形成的环形肩部，所述环形肩部与所述锥形部相连。
  5. 根据权利要求3所述的防水智能电动牙刷，其特征在于，还包括：
    支架，所述支架装设于所述手柄内，所述支架上邻近所述第一端的一端具有向所述第一通孔方向凸出的锥台部，所述锥台部具有贯穿孔；所述驱动电机设在所述支架上，所述驱动电机的输出轴穿过所述贯穿孔；
    所述轴孔还包括贯穿所述锥体部且与所述柱形孔相通的锥形孔，所述锥台部与所述锥形孔紧配合，且所述锥台部靠近所述第一通孔的一端与所述环形肩部相抵。
  6. 根据权利要求2所述的防水智能电动牙刷，其特征在于，还包括：
    压紧套，所述压紧套套设在所述柱体部外，且将所述柱体部向内束紧在所述驱动电机的输出轴上。
  7. 根据权利要求6所述的防水智能电动牙刷，其特征在于，所述压紧套的一端具有沿径向向内侧凸出形成的卡沿，所述驱动电机的输出轴的周壁上具有定位卡槽，所述卡沿卡设在所述定位卡槽内，所述压紧套的另一端套设在所述柱体部外。
  8. 根据权利要求1所述的防水智能电动牙刷，其特征在于，所述手柄上设有按键孔，所述按键孔内设有按键帽；
    所述软胶件还包括遮挡片体，所述遮挡片体注塑成型于所述手柄的内周壁且封闭所述按键 孔，所述遮挡片体的一端与所述帽体相连，所述遮挡片体的另一端沿所述手柄的长度方向延伸；
    所述手柄内设有电路板，所述电路板上设有与所述按键孔相对的按键开关，所述按键开关在所述按键帽按压所述遮挡片体时被触发。
  9. 根据权利要求1所述的防水智能电动牙刷，其特征在于，所述手柄设有灯孔，所述遮挡片体上形成有填充在所述灯孔内的填充部；
    所述电路板上设有与所述的灯孔相对的指示灯，所述指示灯的光线经由所述填充部射出。
  10. 根据权利要求1所述的防水智能电动牙刷，其特征在于，还包括：
    无线充电单元，所述无线充电单元设在所述第二端内，所述无线充电单元包括线圈骨架及绕制在所述线圈骨架上接收线圈；
    盖体，所述盖体密封盖合在所述第二端。
PCT/CN2019/107685 2019-07-11 2019-09-25 防水智能电动牙刷 WO2021003850A1 (zh)

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