CN213607092U

CN213607092U - Electric toothbrush

Info

Publication number: CN213607092U
Application number: CN202021557150.XU
Authority: CN
Inventors: 黄拔梓; 黄道臣; 朱学仕
Original assignee: Shenzhen Libode Technology Co ltd
Current assignee: Shenzhen Libode Technology Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-07-06
Anticipated expiration: 2030-07-29

Abstract

The utility model relates to a personal hygiene apparatus field, concretely relates to electric toothbrush. The electric toothbrush comprises a shell, a motor, a control panel and a pressure sensing structure, wherein the motor, the control panel and the pressure sensing structure are arranged in the shell; the shell is provided with a key area, the key area can be slightly deformed relative to the part of the shell, which is positioned outside the key area, the pressure sensing structure comprises a pressure conduction element and a pressure sensor, one end of the pressure conduction element is in contact with the inner surface of the key area, and the other end of the pressure conduction element is connected with the pressure sensor. The utility model provides an electric toothbrush, because the key region that possesses the button function belongs to the partly of casing itself, avoided button and casing separation and lead to the problem that the gap exists, inside material such as moisture, powder impurity, toothpaste foam can't get into the casing by the casing outside, consequently reduced the fault rate of toothbrush.

Description

Electric toothbrush

Technical Field

The utility model relates to a personal hygiene apparatus field, more specifically say so, relate to an electric toothbrush.

Background

Electric toothbrushes are well accepted by the public for their efficient cleaning efficacy, and there is a growing trend for the iterative updating of electric toothbrush technology. Currently, electric toothbrushes are broadly classified into two types, including a rotary type toothbrush and a vibration type toothbrush. The principle of the rotary toothbrush is that a miniature rotating motor is used for driving a circular brush head to rotate so as to realize cleaning. The principle of the vibration toothbrush is that a brush head generates high-frequency vibration perpendicular to the direction of a brush handle by utilizing a vibration motor inside the vibration toothbrush so as to realize cleaning. Generally, a power toothbrush includes a housing, a drive motor, a control board, a battery, and a brushhead. Wherein, the shell is provided with a key, and an operator can control the switch of the electric toothbrush and the tooth brushing mode through the key.

In the prior art, a key hole penetrating through the wall thickness is formed in the wall of a housing of the electric toothbrush, and a key is installed in the key hole and can move relative to the key hole under the action of external force, so as to trigger a control assembly inside the toothbrush. And a sealing ring is arranged between the key and the key hole so as to prevent external substances from entering the shell.

However, the electric toothbrush is a high frequency use appliance, which is used at least twice a day and the button is pressed at least twice a time. Through pressing down and using many times, the sealing performance of sealing ring is showing and is descending, and the gap can appear between arbitrary two in button, sealing ring and the casing three, and is the increase trend along with the increase of number of times of using the gap, leads to inside the foreign matter gets into the shell through the gap, such as moisture, powder impurity, toothpaste foam etc. cause the fault rate of toothbrush to increase, brings a great deal of inconvenience for the operator, and the repeated purchase cost increases simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric toothbrush to there is the gap to lead to the foreign matter to easily cause the technical problem that the toothbrush fault rate increases in getting into the shell through the gap between the casing of solving current electric toothbrush and the button.

In order to achieve the above object, the utility model adopts the following technical scheme: providing an electric toothbrush, electric toothbrush includes the casing with set up in inside motor, control panel and the pressure sensing structure of casing, the pressure sensing structure set up in on the control panel and rather than electric connection, the control panel with motor electric connection, wherein

The casing has the button region, just the button region can be relative the casing is located the part that presses the button region outside takes place little deformation, pressure sensing structure includes pressure conduction component and pressure sensor, the one end of pressure conduction component with press the internal surface contact in button region, the other end with pressure sensor is connected.

In one embodiment, the inner surface of the key region is provided with an outward sunken notch; the key region is formed by locally and inwards recessing the outer surface of the shell, or the key region is flush with the outer surface of the part of the shell, which is positioned outside the key region.

In one embodiment, the pressure conducting element and the cutout are opposite to each other in the wall thickness direction of the key region, and the pressure conducting element covers the cutout.

In one embodiment, the inner surface of the key region is in contact with the pressure conduction element to form a contact portion, and the cut-out and the contact portion are arranged in a staggered manner.

In one embodiment, an inward recessed groove-shaped structure is arranged on the outer surface of the shell, and the region where the groove-shaped structure is located is the key region.

In one embodiment, an annular groove which is recessed inwards is formed in the outer surface of the shell, and the key region is located in the annular groove.

In an embodiment, at least two concave grooves are formed in the outer surface of the housing, the at least two concave grooves are sequentially spaced along the same circumferential direction, and the key region is located in a circumferential ring formed by the at least two concave grooves.

In one embodiment, a key identifier is disposed on an outer surface of the key region.

In one embodiment, the pressure conduction element is a spring structure, a Pin needle or a soft rubber structure.

In one embodiment, the pressure conduction element is an L-shaped spring structure, and one side of the L-shaped spring structure is attached to the inner surface of the key region.

The utility model provides an electric toothbrush's beneficial effect lies in: compared with the prior art, a part of area of the shell is constructed into a key area to be used as a key, and the key area can be slightly deformed relative to the shell. One end of the pressure conduction element is in contact with the inner surface of the key area, the other end of the pressure conduction element is connected with the pressure sensor, when an operator presses the key area, the key area is subjected to micro deformation, deformation quantity corresponding to the micro deformation is transmitted to the pressure sensitive element of the pressure sensor through the pressure conduction element, the pressure signal is converted into an electric signal capable of being output through the signal processing unit and is output to the control board, and the control board controls the motor to be turned on or turned off according to the electric signal.

Because the button region that possesses the button function belongs to casing part itself, avoided button and casing separation and leaded to the problem that the gap exists, inside substances such as moisture, powder impurity, toothpaste foam can't get into the casing by the casing outside, not only reduced electric toothbrush's fault rate, still improved electric toothbrush's waterproof performance and life.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1a is an axial cross-sectional view of an electric toothbrush according to an embodiment of the present invention, wherein the cut-outs and the pressure-transmitting members are staggered;

FIG. 1b is an axial cross-sectional view of an electric toothbrush according to an embodiment of the present invention, wherein the cut-out and the pressure-transmitting member are aligned;

fig. 2a is an axial cross-sectional view of an electric toothbrush according to an embodiment of the present invention;

fig. 2b is an axial cross-sectional view of an electric toothbrush according to an embodiment of the present invention, wherein the cut-outs and the pressure-transmitting members are staggered;

fig. 2c is an axial cross-sectional view of the electric toothbrush according to an embodiment of the present invention, in which the cut-outs and the pressure-transmitting members are aligned;

fig. 3 is an axial cross-sectional view of an electric toothbrush according to an embodiment of the present invention;

fig. 4 is an axial cross-sectional view of an electric toothbrush according to an embodiment of the present invention;

fig. 5a is a schematic view of an electric toothbrush according to an embodiment of the present invention, in which the groove structure is an annular groove;

fig. 5b is a schematic view of an electric toothbrush according to an embodiment of the present invention, in which the groove structure is a square groove;

fig. 5c is a schematic view of an electric toothbrush according to an embodiment of the present invention, in which the groove structure is formed of two arc-shaped grooves;

fig. 5d is a schematic view of an electric toothbrush according to an embodiment of the present invention, wherein the groove-shaped structure is a dot groove;

fig. 5e is a schematic view of an electric toothbrush according to an embodiment of the present invention, in which the groove structure is in the shape of a switch button sign.

Description of the drawings:

100-an electric toothbrush;

101-a housing; 102-a motor; 103-a battery; 104-a control panel; 105-a pressure sensor; 1011-key area; 1051-spring plate structure; 1052-Pin needle; 1053-a soft gum structure; 101 a-a recess; 101 b-a groove structure; 101 c-incision.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will 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 be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1a to 4, the present embodiment provides an electric toothbrush 100 including a housing 101 and a motor 102, a battery 103, a control board 104 and a pressure sensing structure disposed inside the housing 101. Wherein the pressure sensing structure comprises a pressure conducting element and a pressure sensor 105.

In one embodiment provided herein, the housing 101 is a hard plastic part, and each region of the housing 101 can be slightly deformed by an external force. In this embodiment, a part of the area of the housing 101 is configured as a key area 1011 opposite to the pressure sensor 105, so as to be used as a key. Preferably, the housing 101 is integrally a rigid plastic part. Alternatively, key region 1011 facing pressure sensor 105 is made of hard plastic or a material having a certain elasticity, other housing regions except key region 1011 are made of hard materials, and key region 1011 is partially covered and integrally bonded to other regions of housing 101. In this embodiment, the casing 101 has a cylindrical structure with a certain axial length, and may be specifically a cylinder or a square cylinder, and the front end of the casing 101 is tapered and contracted, and a through hole is formed on the front end surface.

The motor 102 is close to the front end of the casing 101 and is coaxially arranged with the casing 101, and an output shaft of the motor 102 extends out of the through hole and is used for connecting the brush head and driving the brush head to move. The battery 103 is close to the rear end of the housing 101, the battery 103 and the motor 102 are coaxially arranged, and the battery 103 is connected with the motor 102 and the control board 104 respectively for supplying electric energy to the motor 102 and the control board 104. The control board 104 is disposed on the same side as the motor 102 and the battery 103, and the pressure sensor 105 is disposed on the control board 104 on a side away from the motor 102 and the battery 103. Preferably, the pressure sensor 105 is attached to the control board 104 by welding.

In this embodiment, the pressure sensing structure includes a pressure conducting element and a pressure sensor 105. The pressure sensor 105 includes a pressure sensitive element and a signal processing unit. One end of the pressure conducting element is in contact with the inner surface of the key area 1011, and the other end of the pressure conducting element is connected with the pressure sensitive element of the pressure sensor 105, so as to sense the micro-deformation of the key area 1011 and transmit the micro-deformation to the signal processing unit through the pressure sensitive element.

In this embodiment, the pressure-conductive member is preferably a spring structure 1051, a Pin 1052, or a soft rubber structure 1053 to simplify the internal structure of the electric toothbrush 100 while ensuring the sensitivity of detection. Wherein, the pressure conduction element of the electric toothbrush shown in fig. 1a-2c adopts a spring plate structure 1051, the pressure conduction element of the electric toothbrush shown in fig. 3 adopts a Pin needle 1052, and the pressure conduction element of the electric toothbrush shown in fig. 4 adopts a soft glue structure 1053. Of course, the pressure-conducting element can also be chosen to be of another type, such as a spring tube structure, a ceramic plate structure, etc., according to the specific practical requirements.

In this embodiment, the elastic sheet structure 1051 is preferably an L-shaped elastic sheet, and one side sheet of the elastic sheet structure 1051 is attached to the inner surface of the key region 1011. It should be understood that the spring structure 1051 has a variety of options, such as an arc spring and a Z spring.

In this embodiment, the pressure sensor has a variety of optional types. The pressure sensor 105 may be selected from a spring tube pressure sensor, a semiconductor pressure sensor, a ceramic pressure sensor, a leaf spring pressure sensor, a piezoresistive pressure sensor, etc., depending on the particular actual requirements. Among them, the semiconductor pressure sensor can be preferably used because it is advantageous in terms of small volume, light weight and high accuracy based on spatial selection and detection sensitivity.

When the toothbrush is used specifically, an operator presses the key area 1011, the key area 1011 deforms slightly, deformation corresponding to the micro deformation is transmitted to the pressure sensor 105 through the pressure transmission element, the signal processing unit of the pressure sensor 105 converts a pressure signal into an electric signal capable of being output and outputs the electric signal to the control board 104, and the control board controls the motor to be turned on or turned off or the tooth brushing mode to be adjusted according to the electric signal.

In this embodiment, the key region 1011 has various configurations and identification manners. For example, the key identification label may be marked by a specific structure, or may be printed directly on the outer surface of the key area 1011 by laser engraving, pad printing, silk printing, transfer printing, or the like.

As shown in fig. 1a-1b, in one embodiment, the outer surface of the key region 1011 is flush with the outer surface of the rest of the housing 101, and the operator can accurately determine the key position by making a cut 101c on the inner surface of the key region 1011 and/or printing a key identification label on the outer surface, while ensuring the detection accuracy.

As shown in fig. 2a-2b, in one embodiment, the outer surface of key area 1011 forms a depression 101a inward from the outer surface of the other areas of housing 101, and depression 101a forms an intuitive visual orientation. Preferably, the recess 101a is an arc-shaped recess. Of course, the recess 101a may have other shapes, such as a wedge shape, a square shape, an oval shape, or a shape adapted to the human finger. Optionally, in order to increase the amount of deformation of the key area 1011 to further provide the detection accuracy of the pressure sensor 105, a cutout 101c is configured on the inner surface of the recess 101a in this segment.

Specifically, the cutout 101c on the inner surface of the key region 1011 is recessed outward by a predetermined dimension in the wall thickness direction of the key region 1011. In the first embodiment, the cutout 101c is located at the center of the key region 1011, and the pressure conductive member and the cutout 101c face each other in the thickness direction of the key region 1011 and cover the cutout 101 c. In the second embodiment, the contact portion is formed by the contact of the inner surface of key region 1011 with the pressure conduction member, and cutout 101c is provided to be offset from the contact portion. The cutout 101c may be a single cutout 101c located at the periphery of the pressure-conducting element; or a plurality of notches 101c arranged around the pressure conduction element, wherein the plurality of notches 101c can be uniformly distributed along the same circumferential direction or can be arranged on different circumferential directions; alternatively, the cutout 101c is a ring-shaped cutout surrounding the pressure-transmitting member. The configuration of the cutout 101c makes the pressing operation easier, and the key region 1011 is more easily deformed, thereby improving the sensitivity of the pressure sensitive switch.

As shown in fig. 5a-5b, in an embodiment, an inward recessed groove-shaped structure 101b is configured on the outer surface of the casing 101, and an area where the groove-shaped structure 101b is located is a key area 1011. For example, an annular groove is formed on the outer surface of the housing 101, and the region located in the annular groove is the key region 1011. For example, at least two concave grooves are formed on the outer surface of the housing 101, the at least two concave grooves are sequentially spaced along the same circumferential direction, and the key region 1011 is located in a circumferential ring formed by the at least two concave grooves, and the circumferential ring is preferably formed by two concave grooves in this embodiment. For example, a dot groove is formed on the outer surface of the housing 101 and assisted by an arrow, and the dot groove is formed in the center of the key region 1010. For example, the groove structure 101b is configured in the shape of a switch button logo as is well known to those skilled in the art. The groove structure 101b can not only mark the key region, but also increase the deformation of the shell, thereby improving the sensitivity of the pressure key.

It should be understood that the configuration of the groove structure 101b is various, and the present invention is not limited to the several configurations provided in the present embodiment. It should also be understood that groove structures 101b can be used simultaneously in conjunction with the configuration of cutout 101c, with different groove structures 101b in conjunction with different cutout 101c structures creating a variety of different key area 1011 forms.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electric toothbrush comprises a shell, a motor arranged in the shell, a control panel and a pressure sensing structure, wherein the pressure sensing structure is arranged on the control panel and is electrically connected with the control panel, the control panel is electrically connected with the motor, and the electric toothbrush is characterized in that,

2. The electric toothbrush according to claim 1, wherein the inner surface of the button region is provided with a notch depressed outwards; the key region is formed by locally and inwards recessing the outer surface of the shell, or the key region is flush with the outer surface of the part of the shell, which is positioned outside the key region.

3. The electric toothbrush according to claim 2, wherein the pressure-conducting element and the cutout are opposed in a wall thickness direction of the key region, and the pressure-conducting element covers the cutout.

4. The electric toothbrush of claim 2, wherein an inner surface of the key region contacts the pressure-conducting element to form a contact portion, and the cutout and the contact portion are offset.

5. The electric toothbrush according to claim 1, wherein an inwardly recessed channel structure is provided on an outer surface of the housing, and the region in which the channel structure is located is the key region.

6. The powered toothbrush as defined in claim 5, wherein the housing has an inwardly recessed annular groove disposed on an outer surface thereof, the key region being located within the annular groove.

7. The electric toothbrush according to claim 5, wherein at least two grooves are formed on the outer surface of the housing, the at least two grooves are spaced apart from each other in the same circumferential direction, and the key region is located in a circumferential ring formed by the at least two grooves.

8. The electric toothbrush of claim 1, wherein a key identification is provided on an outer surface of the key region.

9. The electric toothbrush of claim 1, wherein the pressure conducting element is a spring structure, a Pin needle, or a soft gel structure.

10. The electric toothbrush according to claim 1, wherein the pressure conducting element is an L-shaped spring structure, one side of which abuts an inner surface of the button region.