Toothbrush handle and electric toothbrush

By using light-blocking components and light-shielding layers in the electric toothbrush handle, a variety of colored luminous patterns can be formed, solving the problem of monotonous luminous patterns in existing technologies, achieving more diverse luminous effects and reducing costs.

CN223944511UActive Publication Date: 2026-02-27CHONGQING DENCARE CORP
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Patent Information

Application Number
CN202423291154.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2026-02-27
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

The light-up patterns of existing electric toothbrushes are relatively monotonous and lack diversity.

Method used

The toothbrush handle design separates the first and second light-emitting devices through a light-blocking component, and sets the first and second light-shielding layers on the outside of the handle shell to form different light-emitting patterns. Different patterns are illuminated by different colored lighting.

Benefits of technology

It achieves clearly defined boundaries and diverse colors in the luminous patterns, reduces the number of luminous devices used, and lowers costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a toothbrush handle and an electric toothbrush, and relates to the technical field of electric toothbrushes. In the toothbrush handle, a first light-emitting device and a second light-emitting device which are separated by a light isolation piece are arranged in a handle shell; the first light-emitting device is used for emitting first illumination light, and the second light-emitting device is used for emitting second illumination light; the first pattern is used for transmitting first illumination light, so that the first illumination light lightens the first pattern to form a first light-emitting pattern; the second pattern is used for transmitting second illumination light, so that the second illumination light lightens the second pattern to form a second light-emitting pattern; the first illumination light is different from the second illumination light in color. According to the application, the constituent elements of the lightened preset pattern can be more diversified.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric toothbrushes, in particular to a toothbrush handle and an electric toothbrush. BACKGROUND

[0002] At present, many electric toothbrushes emit light patterns during use to improve aesthetics. Specifically, the light emitted by the light-emitting device is shaped through the pattern to form a corresponding light-emitting pattern. The constituent elements of the light-emitting pattern are generally a combination of different pattern shapes, and the constituent elements are relatively monotonous.

[0003] Therefore, how to improve the diversification of the constituent elements of the light-emitting pattern formed by shaping through the pattern is a technical problem that needs to be solved by those skilled in the art. CONTENT OF THE UTILITY MODEL

[0004] Therefore, in order to solve the above technical problems, the present application provides a toothbrush handle and an electric toothbrush.

[0005] In order to solve the above technical problems, one of the technical solutions adopted by the present application is to provide a toothbrush handle, which comprises:

[0006] A handle shell, the handle shell is provided with a first light-emitting device and a second light-emitting device separated by a light-blocking member; the first light-emitting device is used to emit first illumination light, and the second light-emitting device is used to emit second illumination light;

[0007] and a first light-shielding layer covering the first light-emitting device and the second light-emitting device, respectively; the first light-shielding layer is provided with a preset pattern exposed to the outside of the handle shell, and the preset pattern comprises a first pattern corresponding to the first light-emitting device and a second pattern corresponding to the second light-emitting device;

[0008] Wherein, the first pattern is used to transmit the first illumination light, so that the first illumination light illuminates the first pattern to form a first light-emitting pattern; the second pattern is used to transmit the second illumination light, so that the second illumination light illuminates the second pattern to form a second light-emitting pattern; the first illumination light can be different in color from the second illumination light.

[0009] In order to solve the above technical problems, another technical solution adopted by the present application is to provide an electric toothbrush, which comprises the above-mentioned toothbrush handle.

[0010] Beneficial effects: Different from the prior art, the present application has at least the following two aspects of beneficial effects. First, the first illumination light and the second illumination light are separated by the light separation piece, so that the colors of the first illumination light and the second illumination light are different and light crosstalk does not occur in the handle shell, so that the first light-emitting pattern and the second light-emitting pattern are distinct in boundary. Second, when the color of the first illumination light is different from the color of the second illumination light, the preset pattern that is lit includes the first light-emitting pattern and the second light-emitting pattern that are different in color, and has multiple colors. That is, the preset pattern that is lit is distinct in boundary and the constituent elements thereof include different pattern colors in addition to the pattern shape. Therefore, the constituent elements of the preset pattern that is lit in the present application are more diversified. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a three-dimensional structural schematic diagram of an electric toothbrush of the present application;

[0012] Figure 2 is an exploded schematic diagram of a toothbrush handle of an electric toothbrush of the present application;

[0013] Figure 3 is Figure 2 is an enlarged schematic diagram of region A in

[0014] Figure 4 is a structural schematic diagram of the assembly of the first light-shielding layer, the light-transmitting layer, the frame layer and the handle shell in the electric toothbrush of the present application, Figure 4 is obtained from the side of the handle shell provided with the first light-shielding layer;

[0015] Figure 5 is Figure 4 is a cross-sectional schematic diagram of the laminated structure of the first light-shielding layer, the light-transmitting layer, the frame layer and the second light-shielding layer obtained by cutting along the cutting line B-B in

[0016] Figure 6 is a structural schematic diagram of the first light-shielding layer on the side of the combined structure of the first light-shielding layer and the light-transmitting layer in the electric toothbrush of the present application;

[0017] Figure 7 is a structural schematic diagram of the frame layer in the electric toothbrush of the present application;

[0018] Figure 8 is a structural schematic diagram of the handle shell in the electric toothbrush of the present application, Figure 8 is obtained from the side of the handle shell provided with the second light-shielding layer;

[0019] Figure 9 is a structural schematic diagram of the assembly of the handle shell, the circuit board and the light separation piece in the electric toothbrush of the present application, Figure 9 is obtained from the side of the handle shell provided with the second light-shielding layer;

[0020] Figure 10 For Figure 9 Enlarged schematic view of the middle region C.

[0021] Legend of reference signs:

[0022] Electric toothbrush 10; toothbrush handle 100; toothbrush head 200; handle shell 110; second light shielding layer 111; first light transmission hole 112; second light transmission hole 113; first avoiding hole 114; mounting groove 115; second avoiding hole 116; first region 117; second region 118; movement core support 120; circuit board 121; starting button 122; light shielding piece 130;

[0023] First light emitting device 140; first light emitting element 141; second light emitting element 142; third light emitting element 143; second light emitting device 150; first light shielding layer 160; reflecting layer 161; ink layer 162; light transmission layer 170; frame layer 180; first structure 190; preset pattern 30; first pattern 31; left eye pattern 311; right eye pattern 312; second pattern 32. DETAILED DESCRIPTION

[0024] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be described in further detail below in conjunction with the drawings and specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor shall fall within the scope of protection of the present application.

[0025] Please refer to Figures 1-2 The electric toothbrush 10 of the present application comprises a toothbrush handle 100 and a toothbrush head 200. The toothbrush handle 100 can comprise a handle shell 110 and a driving motor (not labeled in the figure). The driving motor (not labeled in the figure) can be arranged in the handle shell 110. The driving motor can be connected to the toothbrush head 200 through an output rod (not labeled in the figure) for driving the toothbrush head 200 to brush the teeth.

[0026] The electric toothbrush 10 can comprise a movement core support 120, a circuit board 121 and a battery (not labeled in the figure) arranged in the handle shell 110. The movement core support 120 can support the circuit board 121, the driving motor (not labeled in the figure) and the battery (not labeled in the figure).

[0027] The movement core support 120 can be in the shape of a long strip. The shape of the handle shell 110 is adapted to the movement core support 120, so that the handle shell 110 can be sleeved on the outside of the movement core support 120. The circuit board 121 can be arranged between the movement core support 120 and the handle shell 110.

[0028] As shown in Figures 1-2 The electric toothbrush 10 comprises a first light emitting device 140, a second light emitting device 150, a light blocking member 130 and a first light blocking layer 160.

[0029] The first light emitting device 140 and the second light emitting device 150 are arranged between the core support 120 and the handle shell 110 and are separated by the light blocking member 130. The first light emitting device 140 is used to emit first illumination light, and the second light emitting device 150 is used to emit second illumination light.

[0030] The first light blocking layer 160 covers the first light emitting device 140 and the second light emitting device 150 respectively. The first light blocking layer 160 is provided with a preset pattern 30 exposed to the outside of the handle shell 110, and the preset pattern 30 comprises a first pattern 31 arranged corresponding to the first light emitting device 140 and a second pattern 32 arranged corresponding to the second light emitting device 150.

[0031] The first pattern 31 is used to transmit the first illumination light to shape the first illumination light, so that the first illumination light illuminates the first pattern 31 to form a first light emitting pattern. The second pattern 32 is used to transmit the second illumination light to shape the second illumination light, so that the second illumination light illuminates the second pattern 32 to form a second light emitting pattern. The first illumination light can be different in color from the second illumination light.

[0032] In the above manner, at least the following two aspects are beneficial. First, the first illumination light and the second illumination light are separated by the light blocking member 130, so that the colors of the first illumination light and the second illumination light are different and do not cause light crosstalk in the handle shell 110, so that the first light emitting pattern and the second light emitting pattern have clear boundaries. Second, when the color of the first illumination light is different from the color of the second illumination light, the illuminated preset pattern 30 comprises the first light emitting pattern 31 and the second light emitting pattern 32 which are different in color, and has multiple colors. That is, the illuminated preset pattern has clear boundaries and constitutes elements in addition to the pattern shape, including different pattern colors. Therefore, the elements of the illuminated preset pattern in the present application are more diversified.

[0033] In addition, in the present application, when the display of the light emitting pattern is required, the preset pattern 30 is illuminated by the first illumination light illuminating the first pattern 31 to form the first light emitting pattern and the second illumination light illuminating the second pattern 32 to form the second light emitting pattern, forming a combined light emitting pattern comprising the first light emitting pattern and the second light emitting pattern which is the same as the pattern shape of the preset pattern 30. Thus, compared with the existing array display technology to display the light emitting pattern, the light emitting device required by the display method of the light emitting pattern in the present application is less, and the cost is lower.

[0034] Optionally, as shown in Figures 1-7As shown, the first light emitting device 140, the second light emitting device 150 and the light shielding member 130 are disposed on the circuit board 121 and between the circuit board 121 and the handle shell 110.

[0035] Optionally, as shown in Figures 1-7 As shown, the first pattern 31 and the second pattern 32 are laser-engraved patterns. In this way, the first pattern 31 and the second pattern 32 are formed by laser-engraving the original light shielding material in the partial area of the first light shielding layer 160, thereby simplifying the processing technology of the first pattern 31 and the second pattern 32 and reducing the limitation on the application area of the first pattern 31 and the second pattern 32.

[0036] Optionally, as shown in Figures 1-7 As shown, the first light shielding layer 160 includes a reflective layer 161, and the reflective layer 161 covers the first light emitting device 140 and the second light emitting device 150, respectively.

[0037] The reflective layer 161 is configured to reflect the first illuminating light and the second illuminating light, which are emitted to the outside of the handle shell 110, to the inside of the handle shell 110. The area where the first pattern 31 is located is formed as an opening through the reflective layer 161, so that the first pattern 31 can transmit the first illuminating light. The area where the second pattern 32 is located is formed as an opening through the reflective layer 161, so that the second pattern 32 can transmit the second illuminating light.

[0038] Specifically, the area where the first pattern 31 and the second pattern 32 need to be disposed in the reflective layer 161 can be peeled off by laser-engraving, so that the area where the first pattern 31 is located is formed as an opening through the reflective layer 161, and the area where the second pattern 32 is located is formed as an opening through the reflective layer 161.

[0039] It should be noted that, in combination with Figures 1-4 , referring to Figure 5 As shown, the other areas of the reflective layer 161 except the areas where the first pattern 31 and the second pattern 32 are located can reflect the first illuminating light and the second illuminating light, which are emitted to the outside of the handle shell 110, to the inside of the handle shell 110, the first pattern 31 can transmit the first illuminating light, and the second pattern 32 can transmit the second illuminating light. In this way, the first pattern 31 can shape the first illuminating light, so that the first illuminating light illuminates the area where the first pattern 31 is located to form a first light emitting pattern, and the second pattern 32 can shape the second illuminating light, so that the second illuminating light illuminates the area where the second pattern 32 is located to form a second light emitting pattern. In this way, the preset pattern 30 can be illuminated.

[0040] Optionally, as shown in Figures 1-8 As shown, the first light shielding layer 160 includes an ink layer 162, and the ink layer 162 is disposed on the side of the reflective layer 161 facing the inside of the handle shell 110 and covers the first light emitting device 140 and the second light emitting device 150, respectively.

[0041] The region where the first pattern 31 is located is formed as an opening penetrating the reflective layer 161 and the ink layer 162, so that the first pattern 31 can transmit the first illumination light. The region where the second pattern 32 is located is formed as an opening penetrating the reflective layer 161 and the ink layer 162, so that the second pattern 32 can transmit the second illumination light.

[0042] Optionally, as shown in Figures 1-8 The toothbrush handle 100 includes a light-transmitting layer 170, which is arranged on the side of the ink layer 162 facing the inner side of the handle shell 110 and covers the first light-emitting device 140 and the second light-emitting device 150, respectively. The light-transmitting layer 170 is used to support the ink layer 162, and the light-transmitting layer 170 is used to transmit the first illumination light and the second illumination light. The reflective layer 161 is a metal reflective layer plated on the outside of the ink layer 162.

[0043] In the above manner, the reflective layer 161 adopts the metal reflective layer 161 plated on the outside of the ink layer 162, so that the reflective layer 161 can be thinned. The ink layer 162 can be formed on the side of the light-transmitting layer 170 facing the outer side of the handle shell 110 by spraying, but is not limited thereto.

[0044] It should be noted that in other examples, the reflective layer can also adopt a DBR reflective layer (distributed Bragg reflector).

[0045] Optionally, as shown in Figures 1-8 The handle shell 110 is formed with a second light-shielding layer 111, which covers the first light-emitting device 140 and the second light-emitting device 150, respectively, and is located on the side of the light-transmitting layer 170 facing the inner side of the handle shell 110. The handle shell 110 is provided with a mounting groove 115 located on the side of the second light-shielding layer 111 facing the outer side of the handle. The light-transmitting layer 170 and the first light-shielding layer 160 are detachably arranged in the mounting groove 115.

[0046] The second light-shielding layer 111 is provided with a first light-transmitting hole 112 and a second light-transmitting hole 113. The mounting groove 115 communicates with the first light-transmitting hole 112 and the second light-transmitting hole 113, respectively. The first light-transmitting hole 112 is used to transmit the first illumination light, and the second light-transmitting hole 113 is used to transmit the second illumination light. The first light-shielding layer 160 and the second light-shielding layer 111 are arranged in layers. When the layering direction of the first light-shielding layer 160 and the second light-shielding layer 111 is the projection direction, the projection of the first pattern 31 on the second light-shielding layer 111 along the projection direction is located in the first light-transmitting hole 112, and the projection of the second pattern 32 on the second light-shielding layer 111 along the projection direction is located in the second light-transmitting hole 113.

[0047] In this way, at least two beneficial effects are achieved. First, the light-transmitting layer 170 and the first light-blocking layer 160 are detachably arranged in the mounting groove 115, so that the light-transmitting layer 170 and the first light-blocking layer 160 can be conveniently detached and mounted. Second, the projection of the first pattern 31 on the second light-blocking layer 111 along the projection direction is located in the first light-transmitting hole 112, and the projection of the second pattern 32 on the second light-blocking layer 111 along the projection direction is located in the second light-transmitting hole 113, so that the shape of the first light-transmitting hole does not interfere with the shape of the first light-emitting pattern, and the shape of the second light-transmitting hole does not interfere with the shape of the second light-emitting pattern.

[0048] Optionally, in combination with Figures 1-8 , refer to Figure 9 and Figure 10 The preset pattern 30 is a smiling expression pattern. The first pattern 31 includes a left eye pattern 311 and a right eye pattern 312. The second pattern 32 is a mouth pattern. The handle shell 110 has a first area 117 corresponding to the left eye pattern 311 and a second area 118 corresponding to the right eye pattern 312. The first area 117 and the second area 118 are each provided with a first light-emitting device 140.

[0049] Optionally, the left eye pattern 311 and the right eye pattern 312 can be two spaced apart holes. For example, the left eye pattern 311 and the right eye pattern 312 are spaced apart long circular holes, the length direction of which extends along the length direction of the handle shell 110, but are not limited thereto. Optionally, the mouth pattern is a waist-shaped hole with a downwardly curved middle portion, but is not limited thereto.

[0050] In another example, the preset pattern 30 can be an expression pattern other than the smiling expression pattern, which includes but is not limited to an angry expression pattern or a surprised expression pattern, but is not limited thereto. In another example, the preset pattern 30 can be a character pattern or a pattern, but is not limited thereto.

[0051] Optionally, in combination with Figures 1-8 , refer to Figure 9 and Figure 10 The first light-emitting device 140 and the second light-emitting device 150 are used to indicate the current working state of the electric toothbrush 10 or to prompt the working state to be performed by the electric toothbrush 10. Specifically, different working states are indicated by the combination of the extinguishing and lighting of the first light-emitting device 140, the color of the first illumination light emitted by the first light-emitting device 140 when it is lit, and the extinguishing and lighting of the second light-emitting device 150.

[0052] Optionally, in combination with Figures 1-8 , refer to Figure 9 and Figure 10The first light emitting device 140 includes first, second and third light emitting elements 141, 142 and 143 which emit light of different colors and can emit light independently of each other.

[0053] The first, second and third light emitting elements 141, 142 and 143 can emit light simultaneously or at different times, so that the color of the first illumination light is the color of the light emitted by one of the first, second and third light emitting elements 141, 142 and 143 or the color formed by mixing the colors of the light emitted by at least two of the first, second and third light emitting elements 141, 142 and 143.

[0054] Optionally, the light emitted by the first light emitting element 141 is white, the light emitted by the second light emitting element 142 is green, and the light emitted by the third light emitting element 143 is red, but the application is not limited thereto.

[0055] Optionally, the toothbrush handle 100 is provided with a first avoiding hole 114, and the first avoiding hole 114, the first pattern 31 and the second pattern 32 are sequentially arranged and spaced apart from each other along the length direction of the handle shell 110.

[0056] The handle shell 110 is provided with a starting button 122, and the first avoiding hole 114 penetrates the reflecting layer 161, the ink layer 162, the light-transmitting layer 170 and the side wall of the handle shell 110 to expose the starting button 122. The starting button 122 is electrically connected with the circuit board 121 and is used to control the starting and stopping of the electric toothbrush 10.

[0057] Optionally, as shown in Figures 1-8 The electric toothbrush 10 includes a frame layer 180 which is arranged in the mounting groove 115 and covers one side of the light-transmitting layer 170 towards the inside of the handle shell 110, and the frame layer 180 is provided with a second avoiding hole 116. When the stacking direction of the first light shielding layer 160 and the second light shielding layer 111 is the projection direction, the projections of the first pattern 31 and the second pattern 32 on the second light shielding layer 111 along the projection direction are located in the first light-transmitting hole 112. The first avoiding hole 114 penetrates the frame layer 180.

[0058] Optionally, the first light shielding layer 160, the light-transmitting layer 170 and the frame layer 180 are connected and integrated to form a first structure 190. The outer edge of the frame layer 180 can be detachably clamped in the clamping groove in the mounting groove 115. In this way, the first structure 190 can be quickly disassembled or assembled from the mounting groove 115.

[0059] The above is only an embodiment of the application, and does not limit the patent scope of the application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the application.

Claims

1. A toothbrush handle characterized by, The toothbrush handle comprises: a handle shell, a first light emitting device and a second light emitting device being separated by a light shielding member are arranged in the handle shell; the first light emitting device is used for emitting first illumination light, and the second light emitting device is used for emitting second illumination light; a first light shielding layer covering the first light emitting device and the second light emitting device respectively; the first light shielding layer is provided with a preset pattern exposed to the outside of the handle shell, and the preset pattern comprises a first pattern corresponding to the first light emitting device and a second pattern corresponding to the second light emitting device; wherein the first pattern is used for transmitting the first illumination light, so that the first illumination light illuminates the first pattern to form a first light emitting pattern; the second pattern is used for transmitting the second illumination light, so that the second illumination light illuminates the second pattern to form a second light emitting pattern; and the first illumination light can be different in color from the second illumination light.

2. The toothbrush handle of claim 1, wherein The first pattern and the second pattern are laser-engraved patterns.

3. The toothbrush handle of claim 2, wherein, The first light shielding layer comprises a reflective layer covering the first light emitting device and the second light emitting device respectively; wherein the reflective layer is used for reflecting the first illumination light and the second illumination light emitted to the outside of the handle shell to the inside of the handle shell; an area where the first pattern is located is formed as an opening penetrating the reflective layer, so that the first pattern can transmit the first illumination light; and an area where the second pattern is located is formed as an opening penetrating the reflective layer, so that the second pattern can transmit the second illumination light.

4. The toothbrush handle of claim 3, wherein, The first light shielding layer comprises: an ink layer arranged on a side of the reflective layer facing the inside of the handle shell and covering the first light emitting device and the second light emitting device respectively; wherein an area where the first pattern is located is formed as an opening penetrating the reflective layer and the ink layer, so that the first pattern can transmit the first illumination light; and an area where the second pattern is located is formed as an opening penetrating the reflective layer and the ink layer, so that the second pattern can transmit the second illumination light.

5. The toothbrush handle of claim 4, wherein, The toothbrush handle comprises: a light-transmitting layer arranged on a side of the ink layer facing the inside of the handle shell and covering the first light emitting device and the second light emitting device respectively; wherein the light-transmitting layer is used for supporting the ink layer, and the light-transmitting layer is used for transmitting the first illumination light and the second illumination light; and the reflective layer is a metal reflective layer plated on the outside of the ink layer.

6. The toothbrush handle of claim 5, wherein, The handle shell is formed with a second light shielding layer covering the first light emitting device and the second light emitting device respectively, and the second light shielding layer is located on a side of the first light shielding layer facing the inside of the handle shell; the handle shell is provided with a mounting groove located on a side of the second light shielding layer facing the outside of the handle shell; and the light-transmitting layer and the first light shielding layer are detachably arranged in the mounting groove; The second light-shielding layer is provided with a first light transmission hole and a second light transmission hole; the mounting groove is respectively communicated with the first light transmission hole and the second light transmission hole; the first light transmission hole is used for transmitting the first illumination light, and the second light transmission hole is used for transmitting the second illumination light; the first light-shielding layer and the second light-shielding layer are stacked; when the stacking direction of the first light-shielding layer and the second light-shielding layer is the projection direction, the projection of the first pattern on the second light-shielding layer along the projection direction is located in the first light transmission hole, and the projection of the second pattern on the second light-shielding layer along the projection direction is located in the second light transmission hole.

7. The toothbrush handle of claim 5, wherein The toothbrush handle is provided with a first avoiding hole, the first avoiding hole, the first pattern and the second pattern are sequentially arranged and spaced apart from each other along the length direction of the handle shell; The handle shell is provided with a starting button, and the first avoiding hole penetrates the reflecting layer, the ink layer, the light transmission layer and the side wall of the handle shell to expose the starting button.

8. The toothbrush handle of claim 1, wherein, The preset pattern is a smiling expression pattern; the first pattern includes a left eye pattern and a right eye pattern; and the second pattern is a mouth pattern; The handle shell has a first area corresponding to the left eye pattern and a second area corresponding to the right eye pattern; and the first area and the second area are both provided with the first light emitting device.

9. The toothbrush handle of claim 7, wherein, The first light emitting device includes first, second and third light emitting elements with different light emitting colors and capable of independent light emitting; The first, second and third light emitting elements can emit light simultaneously or at different times, so that the color of the first illumination light is the color of the light emitted by one of the first, second and third light emitting elements or the color mixed by the colors of the light emitted by at least two of the first, second and third light emitting elements.

10. An electric toothbrush characterized by comprising: The electric toothbrush includes the toothbrush handle according to any one of claims 1-9.