An electric toothbrush with back light indication

Abstract

The application relates to an electric toothbrush with back light indication, which comprises a toothbrush shell, an assembly hole is arranged on the back of the side of the toothbrush shell away from the brush, a light transmission part is arranged between the toothbrush shell and a core support, part of the light transmission part fills the assembly hole, a light bar is arranged on the core support and corresponds to the position of the light transmission part, the light bar emits light for indicating the working state of the electric toothbrush, the light is conducted to the outside of the toothbrush shell through the light transmission part, and the user can conveniently see whether the brushing strength is suitable through a mirror when using the toothbrush, so as to remind the user to adjust the brushing strength.

Description

Technical Field

[0001] This application belongs to the field of electric toothbrush technology and relates to an electric toothbrush with a backlight indicator. Background Technology

[0002] With the improvement of people's living standards and the enhancement of oral health awareness, electric toothbrushes have gradually become an important tool in daily personal care due to their high cleaning efficiency and ease of use. During the use of an electric toothbrush, the pressure applied to the brush head is a key factor affecting cleaning effectiveness and gum health. However, because the vibration of the motor inside the electric toothbrush handle can offset some of the tactile feedback, users often find it difficult to intuitively and accurately perceive the pressure they are applying, unlike when using a manual toothbrush. Therefore, it is easy to brush too vigorously.

[0003] To address this issue, some existing electric toothbrushes have incorporated pressure sensing technology. When excessive pressure is detected, the toothbrush will issue an alert by stopping vibration, changing the vibration mode, or emitting a warning sound. Some toothbrushes also integrate visual alerts, such as LED indicator lights on the front of the handle; these lights illuminate or change color when excessive pressure is applied to warn the user.

[0004] However, this type of visual alert solution has a significant drawback: because the LED indicator lights are usually located on the front of the toothbrush handle, during actual brushing, the user's line of sight is often obstructed by the toothbrush itself or their own hand, making it impossible for the human eye to directly observe these illuminated areas. Especially when brushing the inside of the teeth, the indicator lights are completely out of the user's line of sight, rendering the visual alert function ineffective. Users cannot receive timely feedback on pressure overload, thus failing to immediately correct their brushing movements, reducing the product's user experience and safety protection. Utility Model Content

[0005] To overcome the problems existing in the related technology, this application aims to provide an electric toothbrush with a backlight indicator, which makes it easy to observe the indicator light to remind the user to adjust the brushing intensity.

[0006] This application is achieved through the following technical solution.

[0007] Firstly, this technical solution provides an electric toothbrush with a backlight indicator, comprising:

[0008] The toothbrush housing has an assembly hole on the back side facing away from the bristles;

[0009] A light-transmitting element is disposed between the toothbrush housing and the core support, and a portion of the light-transmitting element fills the assembly hole.

[0010] The light strip is mounted on the motor support and corresponds to the position of the light-transmitting element. The light emitted by the light strip to indicate the working status of the electric toothbrush is transmitted to the outside of the toothbrush shell through the light-transmitting element.

[0011] This technical solution involves creating a groove on the side of the toothbrush shell facing away from the bristles, and installing a light strip on the motor bracket. The light strip is connected to a circuit board via wires, and the light strip changes color according to the different pressure signals received by the brush head from the circuit board. By placing the light reminder device on the back of the toothbrush, the user can easily see whether the current brushing force is appropriate through the mirror, and be reminded to adjust the brushing force.

[0012] The present invention is further configured such that the light strip is connected to the circuit board of the mechanism bracket via a wire, and is used to emit light according to the pressure signal detected by the circuit board.

[0013] The present invention is further configured such that the light-transmitting component includes an annular top cover and an arc-shaped base;

[0014] The annular top cover is fitted onto one end of the mechanism bracket near the brush head;

[0015] The toothbrush shell is provided with a base limiting frame, and the arc-shaped base is embedded inside the base limiting frame.

[0016] The present invention is further configured such that the light-transmitting element extends outward from the inner wall surface of the toothbrush shell through the assembly hole to form a light-transmitting protrusion, the light-transmitting protrusion being used for light transmission.

[0017] The present invention is further configured such that a sealing ring is provided at the connection end between the mechanism bracket and the brush head, and a sealing ring is provided on the light-transmitting component corresponding to the sealing ring;

[0018] Both the light-transmitting element and the sealing ring are interference-fitted with the sealing ring.

[0019] The present invention is further configured such that the light-transmitting element is provided with a positioning block, the movement bracket is provided with a positioning notch corresponding to the positioning block, and the positioning block is engaged with the positioning notch.

[0020] The present invention is further configured such that the mechanism bracket is provided with a fixing post corresponding to the light strip, and the fixing post limits the light strip.

[0021] The present invention is further configured such that the light-transmitting element is made of a light-guiding material;

[0022] The light-transmitting component and the toothbrush shell are integrally formed through a secondary injection molding process.

[0023] The present invention is further configured such that the light strip includes multiple LED beads, and the multiple LED beads are configured to emit different colors.

[0024] The present invention is further configured to include a detection module for detecting the pressure of the brush head, the detection module including a pressure-sensitive spring device disposed between the motor and the brush head, and / or a miniature sensor disposed inside the brush handle.

[0025] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0026] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0027] Figure 1 This is a schematic diagram of the structure shown in one embodiment of this application;

[0028] Figure 2 This is a cross-sectional view shown in one embodiment of this application;

[0029] Figure 3 This is a partial enlarged view of A shown in one embodiment of this application;

[0030] Figure 4 This is a schematic diagram of the installation of the light-transmitting element shown in one embodiment of this application;

[0031] Figure 5 This is a schematic diagram of a toothbrush casing shown in one embodiment of this application;

[0032] Figure 6 This is a schematic diagram of a light-transmitting element shown in one embodiment of this application.

[0033] Reference numerals: 1. Toothbrush outer shell; 11. Assembly hole; 12. Base limiting bracket; 2. Mechanism bracket; 21. Sealing ring; 22. Fixing post; 23. Positioning notch; 3. Light-transmitting component; 31. Annular top cover; 32. Arc-shaped base; 33. Light-transmitting protrusion; 34. Sealing ring; 35. Positioning block; 4. Light strip. Detailed Implementation

[0034] The technical solutions of some embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0036] Firstly, this embodiment discloses an electric toothbrush with a backlight indicator, such as... Figures 1-6 As shown, it includes:

[0037] The toothbrush housing 1 has an assembly hole 11 on the back side facing away from the bristles.

[0038] Light-transmitting element 3 is disposed between toothbrush housing 1 and core bracket 2, and part of the light-transmitting element 3 fills the assembly hole 11.

[0039] The light strip 4 is mounted on the motor support 2 and corresponds to the position of the light-transmitting element 3. The light strip 4 emits light to indicate the working status of the electric toothbrush and is transmitted to the outside of the toothbrush housing 1 through the light-transmitting element 3.

[0040] By creating a groove on the side of the toothbrush shell 1 facing away from the bristles, a light strip 4 is installed on the motor bracket. The light strip 4 is connected to the circuit board via wires, so that the light strip changes the color of light according to the different pressure signals received by the brush head from the circuit board. By setting the light reminder device on the back of the toothbrush, the user can easily see whether the current brushing force is appropriate through the mirror when using it, and remind the user to adjust the brushing force.

[0041] like Figure 3 and Figure 4 As shown, the light strip 4 is connected to the circuit board of the mechanism bracket 2 via wires and is used to emit light according to the pressure signal detected by the circuit board.

[0042] like Figures 3-6 As shown, the light-transmitting element 3 includes an annular top cover 31 and an arc-shaped base 32;

[0043] The annular top cover 31 is fitted onto the end of the mechanism bracket 2 near the brush head;

[0044] The toothbrush shell 1 is provided with a base limiting frame 12, and the arc-shaped base 32 is embedded inside the base limiting frame 12.

[0045] It should be noted that the annular top cover 31 is stepped, and the end that abuts against the sealing ring 21 extends axially inward to form a raised annular structure. This annular structure is used to install the sealing ring 34 and cooperate with the sealing ring 34 to form a seal with the sealing ring 21.

[0046] It should be noted that the base limiting frame 12 provided on the toothbrush shell 1 can limit the position of the light-transmitting part 3, and can be used in conjunction with the mold to perform injection molding of the light-transmitting part 3.

[0047] like Figure 1 and Figure 4 As shown, the light-transmitting element 3 extends outward from the inner wall surface of the toothbrush housing 1 through the mounting hole 11, forming a light-transmitting protrusion 33, which is used for light transmission.

[0048] like Figure 3 As shown, the connection end between the mechanism bracket 2 and the brush head is equipped with a sealing ring 21, and the light-transmitting element 3 is provided with a sealing ring 34 corresponding to the sealing ring 21;

[0049] Both the light-transmitting element 3 and the sealing ring 34 are interference-fitted with the sealing ring 21.

[0050] It should be noted that the sealing ring 21 has a radial protrusion structure, which cooperates with the light-transmitting element 3 to form an interference seal. The sealing ring 21 also has a groove structure, and the sealing ring 34 provided in the light-transmitting element 3 can be engaged in the groove to form an interference seal fit.

[0051] It should be noted that an O-ring is provided on the outer side of the movement bracket 2 corresponding to the position of the light-transmitting element 3. The O-ring and the light-transmitting element also form an interference seal fit.

[0052] like Figure 4 As shown, the light-transmitting element 3 is provided with a positioning block 35, and the mechanism bracket 2 is provided with a positioning notch 23 corresponding to the positioning block 35. The positioning block 35 is engaged with the positioning notch 23.

[0053] It should be noted that the positioning block 35 is used to limit the position of the light-transmitting component 3, and at the same time, it can also improve the connection strength between its own annular top cover 31 and the arc-shaped base 32.

[0054] like Figure 4 As shown, the mechanism bracket 2 is provided with a fixing post 22 corresponding to the light strip 4, and the fixing post 22 limits the light strip 4.

[0055] like Figures 1-6 As shown, the light-transmitting element 3 is made of light-guiding material;

[0056] The light-transmitting component 3 and the toothbrush shell 1 are integrally formed through a secondary injection molding process.

[0057] like Figure 4 As shown, the light strip 4 includes multiple LED beads, which are configured to emit different colors. For example, when the pressure on the brush head is between a and b, it emits one color; when the pressure on the brush head is less than a, it emits another color; and when the pressure on the brush head is greater than b, it emits a different color. Here, a is less than b.

[0058] like Figures 1-6 As shown, it also includes a detection module for detecting brush head pressure. The detection module includes a pressure-sensitive spring device located between the motor and the brush head, and / or a miniature sensor located inside the brush handle.

[0059] It should be noted that the pressure sensing structure can also be of other types, as long as it can detect the pressure on the brush head.

[0060] It should be noted that the pressure-sensitive spring device is existing technology. When a user brushes their teeth too forcefully, the pressure from the brush head on the teeth is transmitted to the spring, causing it to deform. This deformation triggers a microswitch or changes the connection state of a conductive contact. This change in switch state is detected by the control chip on the circuit board, which then determines the amount of force applied by the user and controls the light strip 4 to illuminate.

[0061] It should be noted that the miniature sensor is existing technology, with a strain gauge or pressure sensor built into the handle. When the brush head is subjected to pressure, the sensor detects minute deformations or stress changes and converts this physical change into a change in electrical signal. The control chip on the circuit board reads this electrical signal and precisely quantifies the magnitude of the pressure. It then controls the light strip 4 to illuminate.

[0062] Working principle: A groove is cut into the side of the toothbrush shell 1 facing away from the bristles, and a light strip 4 is set on the motor bracket. The light strip 4 is connected to the circuit board through wires. The light strip 4 changes the color of light according to the different pressure signals received by the brush head by the circuit board. The light reminder is set on the back of the toothbrush. When using it, the user can easily see whether the current brushing force is appropriate through the mirror and remind the user to adjust the brushing force.

[0063] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An electric toothbrush with a backlight indicator, characterized in that, include: Toothbrush housing (1), wherein the toothbrush housing (1) has an assembly hole (11) on the back side facing away from the bristles; A light-transmitting element (3) is disposed between the toothbrush housing (1) and the core support (2), and part of the light-transmitting element (3) fills the assembly hole (11); The light strip (4) is mounted on the mechanism support (2) and corresponds to the position of the light-transmitting element (3). The light strip (4) emits light to indicate the working status of the electric toothbrush and is transmitted to the outside of the toothbrush shell (1) through the light-transmitting element (3).

2. The electric toothbrush with backlight indicator according to claim 1, characterized in that, The light strip (4) is connected to the circuit board of the mechanism bracket (2) via a wire and is used to emit light according to the pressure signal detected by the circuit board.

3. The electric toothbrush with backlight indicator according to claim 1, characterized in that, The light-transmitting component (3) includes an annular top cover (31) and an arc-shaped base (32); The annular top cover (31) is sleeved on the end of the mechanism bracket (2) near the brush head; The toothbrush shell (1) is provided with a base limiting frame (12), and the arc-shaped base (32) is embedded inside the base limiting frame (12).

4. The electric toothbrush with a backlight indicator according to claim 1, characterized in that, The light-transmitting element (3) extends outward from the inner wall of the toothbrush shell (1) through the mounting hole (11) to form a light-transmitting protrusion (33), which is used for light transmission.

5. The electric toothbrush with a backlight indicator according to claim 1, characterized in that, The connection end between the mechanism support (2) and the brush head is provided with a sealing ring (21), and the light-transmitting element (3) is provided with a sealing ring (34) corresponding to the sealing ring (21); Both the light-transmitting element (3) and the sealing ring (34) are interference-sealed with the sealing ring (21).

6. The electric toothbrush with backlight indicator according to claim 1, characterized in that, The light-transmitting element (3) is provided with a positioning block (35), and the mechanism bracket (2) is provided with a positioning notch (23) corresponding to the positioning block (35), and the positioning block (35) is engaged with the positioning notch (23).

7. The electric toothbrush with a backlight indicator according to claim 1, characterized in that, The mechanism bracket (2) is provided with a fixing post (22) corresponding to the light strip (4), and the fixing post (22) limits the light strip (4).

8. The electric toothbrush with a backlight indicator according to claim 1, characterized in that, The light-transmitting element (3) is made of light-guiding material; The light-transmitting component (3) and the toothbrush shell (1) are integrally formed by a secondary injection molding process.

9. The electric toothbrush with a backlight indicator according to claim 1, characterized in that, The light strip (4) includes multiple LED beads, which are configured to emit different colors.

10. The electric toothbrush with backlight indicator according to claim 1, characterized in that, It also includes a detection module for detecting brush head pressure, the detection module including a pressure-sensitive spring device located between the motor and the brush head, and / or a miniature sensor located inside the brush handle.

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