Reinforced electric toothbrush handle shell

Abstract

The utility model discloses a reinforced electric toothbrush handle shell, which relates to the technical field of electric toothbrush handles, and comprises a tubular outer reinforced shell, the outer reinforced shell is provided with a mounting port, an inner mounting shell is connected in the outer reinforced shell, and the inner mounting shell is provided with a mounting part; the outer reinforcing shell comprises an outer reinforcing layer, the outer reinforcing layer is of a multi-layer structure comprising any one or any combination of a carbon fiber layer and an aramid fiber layer, and light holes penetrate through the outer reinforcing layer; the outer reinforcing shell further comprises a light-transmitting resin layer impregnated on the outer reinforcing layer, the light-transmitting resin layer forms light-transmitting resin which is used for filling and blocking the light-transmitting holes and can improve the mechanical property and corrosion resistance of the carbon fiber / aramid fiber material through impregnation, and the light-transmitting resin is used for blocking and sealing the light-transmitting holes during impregnation. The safety is better; the handle shell of the electric toothbrush is simple in structure, good in overall strength and hardness and lighter in overall weight, and when the handle shell serves as the handle shell of the electric toothbrush, the holding weight of a user can be effectively reduced, and use is easier.

Description

Technical Field

[0001] This utility model relates to the field of electric toothbrush handle technology, and in particular to a reinforced electric toothbrush handle shell. Background Technology

[0002] With the increasing popularity of electric toothbrushes, the design of electric toothbrush handles is constantly being improved. Chinese utility model patent CN220404181U proposes a "casing of an electric toothbrush, a handle structure for an electric toothbrush, and an electric toothbrush." ​​The casing of the electric toothbrush includes an outer shell and a light-diffusing component. The outer shell is made of metal and has an internal mounting cavity. The outer shell also has light-transmitting micro-holes communicating with the mounting cavity. The light-diffusing component is formed by light-guiding adhesive filled within the light-transmitting micro-holes. By providing light-transmitting micro-holes on the outer shell and sealing them with the light-diffusing component, and using non-transparent light-guiding adhesive (which has good sealing properties), the overall waterproof performance of the electric toothbrush casing is ensured. Furthermore, the non-transparent adhesive disperses the light emitted by the indicator light, thus avoiding glare at the light-transmitting holes. However, as an electric toothbrush that is held by the user, when the shell is made of metal materials, especially copper, its overall weight is relatively large, which can easily increase the fatigue of the user holding it for a long time while brushing. Utility Model Content

[0003] To overcome the shortcomings mentioned above, this utility model aims to provide a lightweight, high-strength, and / or high-hardness electric toothbrush handle shell that can both provide light transmission indication and waterproof the light transmission hole.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a reinforced electric toothbrush handle shell, comprising a tubular outer reinforcing shell, at least one end face of the outer reinforcing shell having a mounting port, the mounting port communicating the inner cavity of the outer reinforcing shell with the outside, an inner mounting shell corresponding to the mounting port being connected inside the outer reinforcing shell, the inner mounting shell having a mounting portion for mounting components; the outer reinforcing shell includes an outer reinforcing layer, the outer reinforcing layer being a multilayer structure comprising any one or any combination of carbon fiber layers and aramid fiber layers, the outer reinforcing layer having a light-transmitting hole penetrating through it; the outer reinforcing shell further includes a light-transmitting resin layer impregnated on the outer reinforcing layer, wherein the light-transmitting resin layer constitutes a filling and sealing of the light-transmitting hole.

[0005] As a further embodiment of this utility model: the outer reinforcing shell includes a first side shell and a second side shell. The first side shell and the second side shell are joined together to form the outer reinforcing shell. The inner cavity of the outer reinforcing shell is formed by the first side shell and the second side shell.

[0006] As a further aspect of this utility model: the light-transmitting resin layer is a thermoplastic resin.

[0007] As a further embodiment of this utility model: the first side shell is hot-melt spliced ​​onto the second side shell.

[0008] As a further embodiment of this utility model: the inner mounting shell is injection molded inside the outer reinforcing shell.

[0009] As a further embodiment of this utility model, the inner mounting shell is made of thermoplastic plastic.

[0010] Compared with the prior art, the beneficial effects of this technical solution are: the reinforced electric toothbrush handle shell has better strength and hardness, and is lighter overall. When used as the handle shell of an electric toothbrush, it can effectively reduce the weight when the user holds it, making it easier to use.

[0011] By impregnating the carbon fiber / aramid fiber material with a light-transmitting resin that can enhance its mechanical properties and corrosion resistance, and during the impregnation process, the light-transmitting resin fills and seals the light-transmitting holes, thus forming a seal on the light-transmitting holes and preventing external water from splashing into the inner cavity through the light-transmitting holes. This is especially useful when used as the handle shell of an electric toothbrush, since electric toothbrushes are frequently exposed to water. Therefore, while still providing light transmission indication, the above-mentioned sealing design can better prevent the components inside the cavity from coming into contact with water, resulting in better safety.

[0012] By using the aforementioned impregnated light-transmitting resin to form a structure that blocks the light-transmitting holes, the preparation process can be effectively saved. In other words, a single impregnation structure can simultaneously improve performance and block the light-transmitting holes, thus effectively improving production efficiency.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural front view of the present invention;

[0016] Figure 2 yes Figure 1 Cross-sectional view of the structure along the AA direction;

[0017] Figure 3 yes Figure 2 Enlarged schematic diagram of the local structure at point B.

[0018] The corresponding labels in the attached diagram are explained as follows:

[0019] Outer reinforcing shell-1, mounting port-2, inner cavity-3, inner mounting shell-4, mounting part-5.

[0020] First side shell -11, second side shell -12

[0021] Outer reinforcing layer-101, light-transmitting hole-102, light-transmitting resin layer-103. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-3 A reinforced electric toothbrush handle housing includes a tubular outer reinforcing housing 1, at least one end face of the outer reinforcing housing 1 having a mounting port 2, the mounting port 2 communicating the inner cavity 3 of the outer reinforcing housing 1 with the outside.

[0024] An inner mounting housing 4 corresponding to the mounting port 2 is connected inside the outer reinforcing housing 1, and the inner mounting housing 4 has a mounting part 5.

[0025] When used as the handle housing of an electric toothbrush, components such as the electric toothbrush's circuit board, motor, battery, LED indicator and / or display screen (not shown) that need to be housed in the handle housing can be installed into the inner cavity 3 of the outer reinforcing housing through the mounting port 2. Then, the installed components are fitted and fastened by the mounting part 5 on the inner mounting housing 4. For example, the mounting part 5 can be a slot, a block, a hole, a screw hole or the like.

[0026] The strength and / or hardness of the outer reinforcing shell 1 is greater than that of the inner mounting shell 4, and the outer reinforcing shell 1 protects the inner mounting shell 4 and the components installed in the inner cavity.

[0027] In this embodiment, the outer reinforcing shell 1 includes an outer reinforcing layer 101, which is a multi-layer structure containing any one or any combination of carbon fiber layer, aramid fiber layer, ceramic layer, and glass fiber layer, and a light-transmitting hole 102 is provided through the outer reinforcing layer 101.

[0028] When carbon fiber and / or aramid fiber layers are used, the outer reinforcing shell 1 further includes a light-transmitting resin layer 103 impregnated on the outer reinforcing layer 101, wherein the light-transmitting resin layer 103 fills, seals, and covers the light-transmitting holes 102. This reinforced electric toothbrush handle shell has better strength and hardness, and is lighter overall. When used as a handle shell for an electric toothbrush, it can effectively reduce the weight for the user to hold, making it easier to use.

[0029] The internal indicator light information can be displayed through the light-transmitting hole 102, such as LED light indicators for indicating motor speed (or gear), LED light indicators for indicating battery power, and screen indicators for indicating other working statuses, so that users can obtain the relevant usage information in a timely manner.

[0030] In some embodiments, the outer reinforcing shell 1 includes a first side shell 11 and a second side shell 12. The first side shell 11 and the second side shell 12 are joined together to form the outer reinforcing shell 1. The inner cavity 3 of the outer reinforcing shell is formed by the first side shell 11 and the second side shell 12.

[0031] That is, both the first side shell 11 and the second side shell 12 include an outer reinforcing layer, wherein the outer reinforcing layer of the first side shell 11 has a light-transmitting hole and / or the outer reinforcing layer of the second side shell 12 has a light-transmitting hole.

[0032] The outer reinforcing layer of the first side shell 11 is entirely impregnated with a corresponding light-transmitting resin layer, and the outer reinforcing layer of the second side shell 12 is entirely impregnated with a corresponding light-transmitting resin layer. The light-transmitting resin layer fills and seals the corresponding light-transmitting holes.

[0033] Taking carbon fiber as an example, the process of preparing the first side shell 11 or the second side shell 12 is as follows: First, a single layer or multiple layers of carbon fiber cloth are laid or shaped according to a predetermined shape, then light-transmitting holes are drilled by CNC, and then impregnated with a light-transmitting resin to form a carbon fiber layer. The impregnation with the light-transmitting resin fills and seals the light-transmitting holes. Another example is: First, a single layer or multiple layers of carbon fiber cloth are drilled with a CNC to form light-transmitting holes, then impregnated with a light-transmitting resin to form a carbon fiber layer. The impregnation with the light-transmitting resin fills and seals the light-transmitting holes, and then the carbon fiber layer is hot-pressed into the shape of the corresponding side shell.

[0034] By impregnating a translucent resin layer 103 that enhances the mechanical properties and corrosion resistance of carbon fiber materials, and during impregnation, the translucent resin layer 103 fills and seals the light-transmitting hole 102. That is, the impregnated translucent resin layer 103 simultaneously forms a seal on the light-transmitting hole 102, preventing external water from splashing into the inner cavity 3 through the light-transmitting hole 102. Especially when used as the handle shell of an electric toothbrush, since electric toothbrushes need to come into frequent contact with water, the above-mentioned sealing setting can better prevent the components inside the inner cavity 3 from coming into contact with water, thus improving safety, while still allowing for light transmission indication.

[0035] By using the aforementioned impregnated light-transmitting resin layer 103, and forming a structure that blocks the light-transmitting hole 102, the preparation process can be effectively saved. That is, one impregnation structure can simultaneously achieve the functions of improving performance and blocking the light-transmitting hole, effectively improving production efficiency.

[0036] The impregnated transparent resin layer may be epoxy resin, polyurethane resin, polymethyl methacrylate, polycarbonate, etc.

[0037] In some embodiments, the light-transmitting resin layer 103 is a thermoplastic resin.

[0038] Preferably, the first side shell 11 and the second side shell 12 are joined by hot-melt splicing with the impregnated thermoplastic resin. During hot-melt splicing, the adhesive properties can be obtained by hot-melting the thermoplastic resin, without the need for additional adhesive.

[0039] In some embodiments, the inner mounting housing 4 is formed on the wall corresponding to the inner cavity 3 of the outer protective housing by in-mold injection molding.

[0040] Preferably, the inner mounting housing 4 is made of thermoplastic plastic, such as PC or ABS. When the translucent resin layer 103 is a thermoplastic resin, both the inner mounting housing 4 and the translucent resin layer 103 are thermoplastic materials, which have good adhesion, resulting in a stronger overall structural connection after molding.

[0041] In some embodiments, the diameters at both ends of the tubular outer reinforcing shell 1 may be the same or different; the tubular outer reinforcing shell as a whole may be a straight tube or a bent tube.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A reinforced electric toothbrush handle shell, characterized in that, The device includes a tubular outer reinforcing shell, at least one end face of which has a mounting port that communicates the inner cavity of the outer reinforcing shell with the outside. An inner mounting shell corresponding to the mounting port is connected inside the outer reinforcing shell, and the inner mounting shell has a mounting portion for mounting components. The outer reinforcing shell includes an outer reinforcing layer, which is a multi-layer structure containing any one or any combination of carbon fiber layers and aramid fiber layers, and has light-transmitting holes through it. The outer reinforcing shell also includes a light-transmitting resin layer impregnated on the outer reinforcing layer, wherein the light-transmitting resin layer constitutes a filling and sealing of the light-transmitting holes.

2. The reinforced electric toothbrush handle shell according to claim 1, characterized in that, The outer reinforcing shell includes a first side shell and a second side shell. The first side shell and the second side shell are joined together to form the outer reinforcing shell. The inner cavity of the outer reinforcing shell is formed by the first side shell and the second side shell.

3. The reinforced electric toothbrush handle shell according to claim 2, characterized in that, The translucent resin layer is made of thermoplastic resin.

4. The reinforced electric toothbrush handle housing according to claim 3, characterized in that, The first side shell is hot-melt spliced ​​onto the second side shell.

5. The reinforced electric toothbrush handle housing according to claim 3 or 4, characterized in that, The inner mounting housing is injection molded inside the outer reinforcing housing.

6. The reinforced electric toothbrush handle housing according to claim 5, characterized in that, The inner mounting housing is made of thermoplastic plastic.

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