CN110897745A

CN110897745A - Electric tooth brush

Info

Publication number: CN110897745A
Application number: CN201911288383.6A
Authority: CN
Inventors: 谢赛; 罗雷
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-03-24

Abstract

The invention discloses an electric toothbrush, wherein a brush head of the electric toothbrush is provided with a first electric connection part; the brush handle is provided with a second electric connection part; the driving mechanism is arranged in the brush handle, a power output shaft of the driving mechanism penetrates through one end of the brush handle and is in driving connection with the brush head, the other end of the brush handle is a gripping end, and part of the second electric connection part is arranged at the gripping end; the first electric connection part and the second electric connection part form a first control loop with a human body, and under the condition that the first electric connection part is contacted with oral liquid, the first control loop is in a passage state, and the driving mechanism drives the brush head to rotate; under the condition that the first electric connection part is separated from oral liquid, the first control circuit is in a disconnected state, and the first control circuit controls the driving mechanism to be closed. The scheme can solve the problem that the electric toothbrush is inconvenient to operate in the using process.

Description

Electric tooth brush

Technical Field

The invention relates to the technical field of electronic equipment, in particular to an electric toothbrush.

Background

With advances in technology and increased user demand, more and more electronic devices, such as power toothbrushes, are being developed in people's lives. The electric toothbrush can enable users to care oral cavity more and more concisely and more efficiently. In particular use, electric toothbrushes still suffer from disadvantages in use, particularly when the electric toothbrush is removed from the mouth, requiring manual shut-off by the user, which can lead to water stains and splashes of foam, which can be annoying to the user. Meanwhile, frequent manual operation to realize start and stop can cause the problem of inconvenient use of users.

Disclosure of Invention

The invention discloses an electric toothbrush, which aims to solve the problem that the electric toothbrush is inconvenient to operate in the using process.

In order to solve the problems, the invention adopts the following technical scheme:

an electric toothbrush, comprising:

a brush head provided with a first electrical connection portion;

a brush handle provided with a second electrical connection portion;

the driving mechanism is arranged in the brush handle, a power output shaft of the driving mechanism penetrates through one end of the brush handle and is connected with the brush head in a driving mode, the other end of the brush handle is a gripping end, and part of the second electric connection portion is arranged at the gripping end; wherein:

the first electric connection part and the second electric connection part form a first control loop with a human body, and under the condition that the first electric connection part is contacted with oral liquid, the first control loop is in a passage state, and the driving mechanism drives the brush head to rotate; in the case where the first electrical connection is fluidly disconnected from the oral cavity, the first control circuit is in a disconnected state, the first control circuit controlling the drive mechanism to close.

The technical scheme adopted by the invention can achieve the following beneficial effects:

when the electric toothbrush disclosed by the embodiment of the invention is used, when the toothbrush head is positioned in an oral cavity, the first electric connection part is contacted with oral liquid, and the part of the second electric connection part positioned at the gripping end is contacted with a hand of a user, so that the first control loop is in a passage state; after the user removes the toothbrush head from the oral cavity, the first electrical connection part is separated from the oral cavity, so that the first control circuit is in an off state, in which case the first control circuit controls the driving mechanism to be closed, and the rotation of the toothbrush head is stopped. Through the process, after the user takes the brush head out of the oral cavity, the brush head can stop rotating without manual closing of the user, and the problems of water stain and foam splashing caused by untimely manual closing can be avoided. Certainly, the process does not need manual operation of the user, so that frequent manual operation of the user can be avoided, and the use of the user can be facilitated undoubtedly.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of an electric toothbrush according to an embodiment of the present invention, in which a first electrical connection portion is provided to a toothbrush head, and an arrow in fig. 1 indicates a film sticking direction of a first conductive film when the first electrical connection portion is the first conductive film;

fig. 2 is a schematic structural view of a portion of a power toothbrush according to an embodiment of the present invention from another perspective,

fig. 3 is a schematic view of a second electrical connection portion provided on the handle of the electric toothbrush according to the embodiment of the present invention, and arrows in fig. 3 indicate a film sticking direction of a second conductive film in the case that the second electrical connection portion is the second conductive film;

FIG. 4 is a schematic view of a power toothbrush according to an embodiment of the present invention;

fig. 5 is a schematic view illustrating the operation of the electric toothbrush according to the embodiment of the present invention.

Description of reference numerals:

100-brush head, 110-brush head body, 111-mounting groove, 112-brush hair, 120-first metal part, 200-first electric connection part, 300-brush handle, 310-bulge part, 400-second electric connection part, 500-driving mechanism, 510-power output shaft, 600-battery, 700-key switch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 5, an embodiment of the present invention discloses an electric toothbrush, which includes a toothbrush head 100, a first electrical connection portion 200, a toothbrush handle 300, a second electrical connection portion 400, and a driving mechanism 500.

The toothbrush head 100 is a component of the electric toothbrush, which needs to be at least partially inserted into the oral cavity to clean teeth during operation, and during specific operation, the toothbrush head 100 rotates to clean teeth. The first electrical connection portion 200 is disposed on the brush head 100, and the first electrical connection portion 200 can extend at least partially into the mouth of the user to contact oral fluid during brushing of the user.

The handle 300 is a grip portion of the electric toothbrush and the second electrical connection 400 is provided on the handle 300. The driving mechanism 500 is a driving part for driving the brush head 100 to rotate, the driving mechanism 500 is disposed in the brush handle 300, the driving mechanism 500 has a power output shaft 510, the power output shaft 510 penetrates through one end of the brush handle 300 and is drivingly connected with the brush head 100, the other end of the brush handle 300 is a gripping end, and a part of the second electrical connection portion 400 is disposed at the gripping end. In a specific operation process, the power output shaft 510 rotates after the driving mechanism 500 is started, and further drives the brush head 100 to rotate relative to the brush holder 300. The driving mechanism 500 usually comprises a driving motor, but for better speed regulation, the driving mechanism 500 may also comprise a speed reducing mechanism, and the driving motor can be connected with the brush head 100 through the speed reducing mechanism so as to drive the brush head 100.

A portion of the second electrical connection 400 is disposed at the gripping end such that the second electrical connection 400 is accessible to a user by gripping during use of the electric toothbrush.

In the present embodiment, the first and second

electrical connection portions

200 and 400 can constitute a first control loop with the human body when the electric toothbrush is used. Specifically, first electric connection 200 is connected with second electric connection 400 electrically, and first electric connection 200 contacts with oral liquid, and second electric connection 400 is located the gripping end at least partially to can contact with user's hand, in specific use, human bioelectric current can pass through first control circuit, thereby forms electric circuit, and first control circuit links to each other with actuating mechanism 500, thereby can realize the control to actuating mechanism 500 work.

Specifically, when the first electrical connection portion 200 is in contact with oral liquid, the first control circuit is in a closed state, the first control circuit controls the driving mechanism 500 to be kept in an open state, and the driving mechanism 500 drives the brush head 100 to rotate, so as to clean the oral cavity. In the case where the first electrical connection portion 200 is separated from the oral fluid, the user usually separates the toothbrush head 100 from the oral cavity, and the first control circuit is in an open state because the first electrical connection portion 200 is not in contact with the oral fluid, and the first control circuit controls the driving mechanism 500 to be closed.

It should be noted that the first control circuit can control the driving mechanism 500, specifically, the first control circuit and the driving mechanism 500 have various electrical connection relationships to implement the first control circuit, and those skilled in the art can implement circuit design by various conventional technical means, and the embodiment of the present invention does not limit the specific connection relationship between the first control circuit and the driving mechanism 500.

In the using process of the electric toothbrush disclosed by the embodiment of the invention, when the toothbrush head 100 is in the oral cavity, the first electric connection part 200 is in contact with oral liquid, and the part of the second electric connection part 400 positioned at the gripping end is in contact with the hand of a user, so that the first control loop is in a closed state, and under the condition, the first control loop can control the driving mechanism 500 to keep driving the toothbrush head 100 to rotate, so that the teeth are cleaned; after the user removes the toothbrush head 100 from the oral cavity, the first electrical connection portion 200 is separated from the oral cavity, so that the first control circuit is in an open state, in which case the first control circuit controls the driving mechanism 500 to be closed, and the rotation of the toothbrush head 100 is stopped. Through the process, after the user takes the brush head 100 out of the oral cavity, the brush head 100 can stop rotating, manual closing of the user is not needed, and the problems of water stain and foam splashing caused by untimely manual closing are avoided. Certainly, the process does not need manual operation of the user, so that frequent manual operation of the user can be avoided, and the use of the user can be facilitated undoubtedly.

The electric toothbrush disclosed by the embodiment of the invention can be provided with a power plug, and the power plug can be connected with an external power supply when the electric toothbrush is used. In a preferable embodiment, the electric toothbrush disclosed in the embodiment of the present invention may further include a battery 600, the battery 600 is disposed in the handle 300, and the battery 600 is connected to the driving mechanism 500 to supply power to the driving mechanism 500. The structure can ensure that the electric toothbrush does not need an external power supply in the using process, thereby being more convenient for a user to carry and simultaneously improving the using flexibility of the electric toothbrush.

To enable manual manipulation, the electric toothbrush disclosed in the embodiment of the present invention may further include a key switch 700 in general. The push button switch 700 is generally disposed on the handle 300. The key switch 700, the driving mechanism 500 and the battery 600 may form a second control loop, and the key switch 700 may control the second control loop to be turned on or off. In a specific operation process, after the key switch 700 is pressed by a user once, the second control circuit is in an off state, and after the user presses the second control circuit next, the second control circuit is in an on state. Specifically, when the second control circuit is in the on state, the driving mechanism 500 drives the brush head 100 to rotate, and when the second control circuit is in the off state, the second control circuit controls the driving mechanism 500 to close. Similarly, the control of the driving mechanism 500 by the second control loop can be realized by various conventional circuit designs, and the embodiment of the present invention does not limit the specific connection relationship between the second control loop and the driving mechanism 500.

In the case where the electric toothbrush includes the key switch 700 forming the second control circuit described above together with the driving mechanism 500 and the battery 600, the first control circuit may control the key switch 700 to be turned off in a state where the first control circuit is turned off, so that the second control circuit is turned off. In a specific using process, a user presses the key switch 700, so that the second control circuit is in a passage state, the driving mechanism 500 starts to work, the brush head 100 extends into the oral cavity, the first control circuit is in a passage state after the first electric connection portion 200 is contacted with oral liquid, after cleaning is finished, the brush head 100 is removed from the oral cavity, the first electric connection portion 200 is separated from the oral liquid, and finally the first control circuit is in a short-circuit state, and in a state that the first control circuit is disconnected, the first control circuit controls the key switch 700 to be disconnected, so that the second control circuit is disconnected, and finally the driving mechanism 500 is controlled to be closed. The scheme undoubtedly enables the electric toothbrush to have better operability, and further can be more convenient for users to use.

In the embodiment of the present invention, the kinds of the first and second

electrical connection portions

200 and 400 may be various as long as electrical conduction can be ensured. In order to facilitate the manufacture of the electric toothbrush, in a preferred embodiment, the first electrical connection portion 200 may be a first conductive film or a first conductive coating. Similarly, the second electrical connection portion 400 may be a second conductive film or a second conductive coating. The first and second

electrical connection portions

200 and 400 of the above structure do not cause the electric toothbrush to be excessively bulky. In one specific embodiment, the first electrical connection 200 and the second electrical connection 400 can be plated layers, for example, the first electrical connection 200 and the second electrical connection 400 can each be an indium tin oxide layer.

Referring again to fig. 1 to 5, in an embodiment of the present invention, the brush head 100 may include a brush head body 110 and a first metal portion 120 disposed on the brush head body 110, the first metal portion 120 is electrically connected to a first conductive film or a first conductive coating, an end surface of the first metal portion 120 facing the brush handle 300 is a first electrical contact region, an end surface of the brush handle 300 facing the brush head 100 includes a second electrical contact region, the first electrical contact region is in conductive contact with the second electrical contact region, and the first electrical connection portion 200 is electrically connected to the second electrical connection portion 400 through contact between the first electrical contact region and the second electrical contact region. In a particular operation, the drive mechanism 500 drives the brush head 100 in rotation, enabling relative rotation between the first electrical contact area and the second electrical contact area while maintaining conductive contact. The above structure makes the electrical connection structure between the first electrical connection portion 200 and the second electrical connection portion 400 simpler and easier to implement.

In the present embodiment, the first metal part 120 can be mounted on the head body 110 in various ways, for example, the first metal part 120 can be fixed on the head body 110 by clipping. In a general case, the head body 110 may be injection molded, and based on this, the first metal part 120 may be connected to the head body 110 by insert molding. In a preferable embodiment, the head body 110 may be provided with a mounting groove 111, the first metal part 120 may be fixed in the mounting groove 111, and a port at one end of the mounting groove 111 penetrates through the end surface of the head body 110 facing the handle 300, so that the first metal part 120 may be exposed through the port, and then contact with the second electrical contact region is achieved. The first metal part 120 is coupled to the mounting groove 111 by fitting, and particularly, the first metal part 120 may be detachably disposed in the mounting groove 111, thereby improving the fitting performance. The first metal part 120 may be made of non-ferrous metal, and the portion of the first metal part 120 exposed out of the notch of the mounting groove 111 may also play a role of decoration, thereby improving the aesthetic property of the electric toothbrush.

Referring again to fig. 1 or 4, in a preferred embodiment, the handle 300 may include a protrusion 310, and the power output shaft 510 passes through the protrusion 310 and is connected to the head 100. The surface of the projection 310 facing the head 100 is the second electrical contact region. In this case, the surface area of the protruding portion 310 is smaller, and the area of the second electrical contact region formed on the protruding portion 310 is designed to be smaller, so as to be beneficial to reducing the contact area between the first electrical contact region and the second electrical contact region, and further to reducing the wear.

In a preferred embodiment, the brush head 100 may include bristles 112, and the first electrical connection portion 200 may be disposed on the brush head 100 on a side opposite to the bristles 112 and extend along the length of the brush head 100. This arrangement is advantageous in mitigating the adverse effects of the placement of the first electrical connection 200 on the bristles 112. On the premise that the first electrical connection portion 200 is a first conductive film or a first conductive coating, the first conductive film or the first conductive coating may be attached to the side of the brush head 100 opposite to the bristles 112. In a further optimized scheme, the first conductive film or the first conductive coating can be a decorative conductive sheet, and the decorative conductive sheet can have a certain color or shape, so that the electric toothbrush can be decorated.

In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An electric toothbrush, comprising:

a brush head provided with a first electrical connection portion;

a brush handle provided with a second electrical connection portion;

2. The powered toothbrush as defined in claim 1, further comprising a battery disposed within the handle, the battery being connected to the drive mechanism.

3. The electric toothbrush as claimed in claim 2, wherein the handle is provided with a key switch, the driving mechanism and the battery form a second control loop, and the key switch controls the second control loop to be switched on and off; wherein:

under the condition that the second control circuit is in a passage state, the driving mechanism drives the brush head to rotate;

the second control loop controls the driving mechanism to be closed under the condition that the second control loop is in a disconnected state;

and when the first control loop is in the disconnection state, the first control loop controls the key switch to be disconnected.

4. The electric toothbrush of claim 1, wherein the first electrical connection is a first conductive membrane or a first conductive coating.

5. The electric toothbrush according to claim 4, wherein the head comprises a head body and a first metal portion provided on the head body, the first metal portion being electrically connected to the first conductive membrane or the first conductive coating, and an end face of the first metal portion facing the handle being a first electrical contact region, an end face of the handle facing the head comprising a second electrical contact region, the first electrical contact region being in electrically conductive contact with the second electrical contact region, the first electrical connection being electrically connected to the second electrical connection portion through contact between the first electrical contact region and the second electrical contact region.

6. The electric toothbrush according to claim 5, wherein the head body is formed with a mounting groove, the first metal part is fixed in the mounting groove, and an end port of the mounting groove penetrates an end surface of the head body facing the handle.

7. The powered toothbrush as defined in claim 5, wherein the handle includes a boss through which the power output shaft passes and is connected to the head, the surface of the boss facing the head being the second electrical contact region.

8. The electric toothbrush of claim 4, wherein the head includes bristles, and the first conductive membrane or the first conductive coating is attached to the head on a side opposite the bristles and extends along a length of the head.

9. The electric toothbrush of claim 1, wherein the second electrical connection is a second conductive membrane or a second conductive coating affixed to a surface of the handle.

10. The electric toothbrush according to any one of claims 1 to 9 wherein the first and second electrical connections are each a layer of indium tin oxide.