Electric toothbrush

Abstract

An electric toothbrush comprises a brush handle and a brush head, a cavity is formed in the brush handle, and a driving assembly is arranged in the cavity; the brush head is arranged on the brush handle, so that the driving assembly can drive the brush head to clean the oral cavity; wherein the brush handle comprises a second shell made of a non-metal wear-resistant material and a first shell made of a material different from that of the second shell, and the first shell is provided with an operation area used for controlling the electric toothbrush to work. The second shell is configured to cover the outer side of the first shell and enable the operation area to be exposed to the outer side, the working state of the electric toothbrush can be conveniently controlled, and meanwhile the brush handle can have the abrasion-resistant performance and the non-metal appearance effect.

Description

Technical Field

[0001] This application relates to the field of oral hygiene technology, and more particularly to an electric toothbrush. Background Technology

[0002] As people's living standards improve, personal hygiene and health are receiving more and more attention. Electric toothbrushes are popular among many users because they are convenient, effortless, and effective at cleaning.

[0003] Electric toothbrushes clean teeth by vibrating the brush head. However, the handles of electric toothbrushes are currently made of either plastic or metal. Plastic handles are difficult to meet consumers' demands for high-quality electric toothbrushes. While metal handles offer advantages such as high strength and a premium feel, they can shield Bluetooth and WiFi antennas, severely impacting their signal transmission performance. Utility Model Content

[0004] This application provides an electric toothbrush designed to at least address one of the technical problems existing in the prior art.

[0005] This application provides an electric toothbrush, comprising:

[0006] A brush handle, wherein a cavity is formed inside the brush handle, and a drive component is disposed inside the cavity;

[0007] A brush head, which is disposed on the brush handle, enables the drive assembly to drive the brush head to perform oral cleaning;

[0008] The brush handle includes a second housing made of a non-metallic wear-resistant material and a first housing made of a different material from the second housing. The first housing has an operating area for controlling the operation of the electric toothbrush. The second housing is configured to cover the outside of the first housing and expose the operating area to the outside, so that the user can control the working status of the electric toothbrush through the operating area. This satisfies the functions of the brush handle in terms of hand feel, appearance and durability, and also ensures the output effect of the antenna signal.

[0009] In an embodiment of the electric toothbrush of this application, there is a dividing line between the second housing and the first housing. The dividing line is perpendicular to the axial direction of the brush handle or the extending direction of the dividing line gradually approaches the end of the brush head from one side of the operating area to the other side opposite to the operating area. This facilitates the setting of the operating area, has a simple structure, and also makes it convenient for the first housing and the second housing to be structurally processed and formed.

[0010] In an embodiment of the electric toothbrush of this application, the handle has a second end connected to the brush head and a first end disposed opposite to the second end. The operating area is disposed on the side of the first housing near the second end, and at least part of the dividing line is located on the side of the operating area away from the second end, so that the operating area can be exposed to the outside, which also helps to improve the user's hand feel and improve the wear resistance of the brush handle.

[0011] In an electric toothbrush according to one embodiment of this application, the dividing line has a first vertex on the side where the operating area is located, the first vertex being located on the side of the operating area away from the second end, so that the operating area can be exposed to the outside.

[0012] In an electric toothbrush according to one embodiment of this application, the dividing line has a second vertex on the side facing away from the operating area. The second vertex is on the side of the first vertex facing the second end, so that the second shell covers more of the area of ​​the first shell facing away from the operating area, which is beneficial to improving the user's grip feel.

[0013] In an embodiment of the electric toothbrush of this application, the ratio of the distance between the first vertex and the second vertex to the maximum size of the first housing is in the range of 1 to 2. This makes the area on one side of the operating area smaller than the area on the side facing away from the operating area after the first housing is covered by the second housing. This allows the first housing to reserve more operating area on one side of the operating area for setting up the components of the operating area, without the need for further processing of the second housing. It also helps to improve the user's grip feel.

[0014] In an embodiment of the electric toothbrush of this application, the dividing line is located on the side of the first housing near the second end and at 1 / 2 to 2 / 3 of the length of the brush handle, such that most of the outer surface of the first housing is covered by the second housing, thereby improving the wear resistance of the brush handle.

[0015] In an electric toothbrush according to one embodiment of this application, the first housing includes a handle portion and a tapered portion. The cross-sectional area of ​​the tapered portion gradually decreases from the side near the handle portion to the side near the brush head. The operating area is disposed on the tapered portion. The second housing at least partially covers the outside of the handle portion to facilitate the structural processing and shaping of the first housing and the second housing.

[0016] In an embodiment of the electric toothbrush of this application, the surface of the handheld part is provided with an inlay groove, the depth of the inlay groove is adapted to the thickness of the second housing, and the second housing covers the outside of the inlay groove, so that after the second housing is fixed to the handheld part, its outer surface can be flush with the tapered part.

[0017] In an embodiment of the electric toothbrush of this application, a first limiting part is provided on the inlay groove, and a second limiting part is provided inside the second housing. The first limiting part and the second limiting part cooperate to prevent the second housing from rotating relative to the hand handle, so that the second housing can be stably fixed in the inlay groove.

[0018] In an electric toothbrush according to one embodiment of this application, a first fixing part is provided on the inlay groove, and a second fixing part is provided inside the second housing. The first fixing part and the second fixing part cooperate to fix the second housing in the inlay groove, thereby realizing a fixed connection between the second housing and the first housing.

[0019] In an embodiment of the electric toothbrush of this application, the first fixing part includes an adhesive groove formed on the outside of the inlay groove and glue filled in the adhesive groove, and the second fixing part includes an adhesive surface formed on the inner wall of the second housing, wherein the glue is bonded to the adhesive surface so that the second housing can be stably fixed in the inlay groove.

[0020] In the electric toothbrush of one embodiment of this application, the thickness of the second housing is between 0.5 mm and 3.5 mm, which not only ensures the strength of the second housing, but also does not affect antennas such as Bluetooth and WiFi.

[0021] In the electric toothbrush of one embodiment of this application, the second housing and the first housing are fixed by injection molding, which reduces the assembly process between the second housing and the first housing, greatly improves the manufacturing efficiency of the brush handle, and can also ensure the quality of the product.

[0022] In the electric toothbrush of one embodiment of this application, the second housing is made of ceramic material, which has a ceramic appearance effect, is thin and stylish, and has a novel appearance.

[0023] The technical solution provided in this application embodiment can include the following beneficial effects: This application designs an electric toothbrush, including a handle and a brush head. The handle includes a first shell made of plastic material and a second shell made of non-metallic wear-resistant material. The brush head is disposed on the first shell. The first shell is provided with an operating area for controlling the operation of the electric toothbrush. The second shell is configured to cover the outside of the first shell and expose the operating area to the outside, which makes it convenient for the user to control the working status of the electric toothbrush through the operating area. At the same time, it can make the handle wear-resistant and have a non-metallic appearance, which is beneficial to improving the hand feel of the handle and will not shield the antenna signal of the electric toothbrush.

[0024] 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

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of an electric toothbrush provided in one embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the structure of an electric toothbrush provided in another embodiment of this application;

[0028] Figure 3 yes Figure 2 An exploded view of an electric toothbrush; Figure 4 yes Figure 3 A schematic diagram of the brush handle structure;

[0029] Figure 5 yes Figure 1 A cross-sectional view of the brush handle at the first angle;

[0030] Figure 6 yes Figure 1 A cross-sectional view of the brush handle at the second angle;

[0031] Figure 7 yes Figure 1 An exploded view of the brush handle;

[0032] Figure 8 yes Figure 7 A schematic diagram of the structure of the first shell in the middle;

[0033] Figure 9 yes Figure 7 A schematic diagram of the structure of the second shell in the diagram.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100. Brush handle; 101. Dividing line; 101a. First vertex; 101b. Second vertex;

[0036] 10. First housing; 11. Handheld part; 111. Inlay groove; 112. Adhesive groove; 113. Elastic groove; 114. First limiting part; 12. Tapered part; 121. Operating area; 1211. Button; 1212. Display panel; 122. First end; 123. Second end; 13. Cavity; 20. Second housing; 21. Hollow cavity; 211. Second limiting part;

[0037] 200. Brush head;

[0038] 200. Electronic components. Detailed Implementation

[0039] The technical solutions of the 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.

[0040] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0041] like Figures 1 to 5 As shown, this application provides an electric toothbrush, including a brush head 200 and a handle 100. The brush head 200 is disposed on the handle 100, and a cavity 13 is formed inside the handle 100. A drive component is disposed inside the cavity 13 to improve the driving power of the electric toothbrush. When cleaning the oral cavity, the drive component can drive the brush head 200 to vibrate through the handle 100 to achieve oral cleaning.

[0042] In one alternative implementation, such as Figures 5 to 7 As shown, the brush handle 100 includes a first housing 10 and a second housing 20. The second housing 20 is made of a non-metallic wear-resistant material. The material of the first housing 10 is different from that of the second housing 20 and has mature technology for forming the display area and / or button area. It can be plastic, metal, or other materials, which are not limited in this application. The second housing 20 is configured to cover the outside of the first housing 10 to utilize its wear-resistant properties to prevent wear on the brush handle 100 during use, thus improving the hand feel of the brush handle 100. Simultaneously, the combination of two different materials can enhance the appearance of the brush handle 100, increasing its aesthetic appeal and making its visual effect more unique, meeting diverse market demands. Furthermore, the use of a non-metallic wear-resistant material for the second housing 20 will not shield the antenna signal of the electric toothbrush. It should be noted that the non-metallic wear-resistant material can include, but is not limited to, non-metallic materials such as glass or ceramic. Among them, ceramic material has the advantages of being harder and having a better texture than metal, and has the advantages of being wear-resistant, corrosion-resistant, and high-temperature resistant; at the same time, it will not affect the electrical performance of electric toothbrushes and can avoid shielding the antenna signal of electric toothbrushes.

[0043] In an optional embodiment, the first housing 10 is provided with an operation area 121 for controlling the operation of the electric toothbrush. The operation area 121 includes, but is not limited to, a display area and / or a button area. The second housing 20 is configured to cover the outside of the first housing 10 and expose the operation area 121 to the outside. This not only allows the user to conveniently control the operating status of the electric toothbrush through the operation area 121, but also avoids areas such as the operation area 121 and the tapered portion 12 that are difficult to mold. The operation area 121 includes, but is not limited to, components such as buttons 1211 and a display panel 1212 for display and / or interactive operation. The buttons 1211 and / or the display panel 1212 are electrically connected to the electronic components 300 of the electric toothbrush and exposed on the outer surface of the second housing 20 to enable user operation of the electric toothbrush.

[0044] In one optional embodiment, the first housing 10 is made of plastic material, and the second housing 20 is made of wear-resistant and corrosion-resistant material. The second housing 20 covers the outside of the first housing 10, exposing the operating area 121 to the outside. This solves the problem that the production cost of the second housing 20 will not increase due to the difficult-to-mold areas such as the operating area 121 and the tapered portion 12 during the molding process. Meanwhile, the end of the second housing 20 away from the tapered portion 12 or the brush head 200 is typically used for handheld or suspended electric toothbrushes. Therefore, by covering the outside of the first housing 10, this application can effectively improve the wear resistance of the brush handle 100 and also improve the appearance and texture of the electric toothbrush. In one optional embodiment, such as... Figure 4 and Figure 7As shown, a dividing line 101 exists between the second housing 20 and the first housing 10. The dividing line 101 is perpendicular to the axial direction of the brush handle 100, or the dividing line 101 forms an angle of not equal to 90° with the axial direction of the brush handle 100. That is, the extension direction of the dividing line 101 can gradually approach the end of the brush head 100 from one side of the operation area 121 towards the other side opposite to the operation area 121. This allows the first housing 10 to reserve a larger area in the operation area 121, facilitating the setting of the display area and / or button area. Its overall structure is simple and also facilitates the structural processing of the first housing 10 and the second housing 20. It does not require processing the splice between the second housing 20 and the first housing 10 into a complex shape, which is beneficial for production. In an optional embodiment, the brush handle 100 has a second end 123 connected to the brush head 200 and a first end 122 disposed opposite to the second end 123. The first end 122 is the end of the brush handle 100 away from the brush head 100, that is, the bottom of the brush handle 100. The operating area 121 is located on the side of the first housing 10 near the second end 123, with at least a portion of the dividing line 101 located on the side of the operating area 121 away from the second end 123, allowing the operating area 121 to be exposed to the outside for operation by the user of the electric toothbrush. The end of the second housing 20 away from the operating area 121 is flush with the first end 122, giving the brush handle 100 a better appearance and preventing wear on the bottom of the electric toothbrush.

[0045] In one alternative implementation, such as Figure 4 As shown, the dividing line 101 has a first vertex 101a on the side where the operating area 121 is located. The first vertex 101a is located on the side of the operating area 121 away from the second end 123, so that the operating area 121 can be exposed to the outside of the second housing 20. It is not necessary to process the second housing 20 separately, such as setting a complex shape like a through hole to expose the operating area 121, which is beneficial to the production of the brush handle 100.

[0046] In an optional embodiment, the dividing line 101 has a second vertex 101b on the side facing away from the operating area 121. The second vertex 101b is on the side of the first vertex 101a facing the second end 123, so that the second housing 20 covers more of the area of ​​the first housing 10 facing away from the operating area 121. This allows for more space to be reserved on the side of the first housing 10 located in the operating area 121 for the placement of components such as buttons and / or display panels. At the same time, it also allows most of the outer surface of the first housing 10 to be covered by the second housing 20, which helps to improve the user's grip.

[0047] In an optional embodiment, the ratio of the distance D2 between the first vertex 101a and the second vertex 101b to the maximum size D1 of the first housing 10 is in the range of 1 to 2, so that after the first housing 10 is covered by the second housing 20, the area on one side of the operating area 121 is smaller than the area on the side facing away from the operating area 121, so that the first housing 10 can reserve more operating area 121 on one side of the operating area 121 for setting the components of the operating area 121 without the need for additional processing of the second housing 20, which also helps to improve the user's hand feel.

[0048] In an optional embodiment, the dividing line 101 is located on the side of the first housing 10 near the second end 123 and at 1 / 2 to 2 / 3 of the length of the brush handle 100, so that most of the outer surface of the first housing 10 is covered by the second housing 20, thereby improving the overall wear resistance of the brush handle 100 and avoiding affecting the operating area 121, allowing the operating area 121 to be exposed to the outside without the need for further processing of the second housing 20.

[0049] In one alternative implementation, such as Figures 7 to 9 As shown, the first housing 10 includes a handle portion 11 and a tapered portion 12. The cross-sectional area of ​​the tapered portion 12 gradually decreases from the side near the handle portion 11 to the side near the brush head 200. The operating area 121 is disposed on the tapered portion 12. The second housing 20 at least partially covers the outside of the handle portion 11, which satisfies the functions of the handle 100 in terms of hand feel, aesthetics, and durability. It also facilitates the structural processing and molding of the first housing 10 and the second housing 20. According to the process requirements of the first housing 10 and the second housing 20, the first housing 10 and the second housing 20 can be processed separately and then assembled together, or the second housing 20 can be fixed together with the first housing 10 by injection molding.

[0050] In an optional embodiment, the surface of the handheld part 11 is provided with an inlay groove 111, the depth of which is adapted to the thickness of the second housing 20. The second housing 20 covers the outside of the inlay groove 111, so that after the second housing 20 is fixed to the handheld part 11, the outer surface of the second housing 20 can be flush with the outer surface of the tapered part 12 on the side close to the handheld part 11, thereby reducing the unevenness problem between the second housing 20 and the first housing 10 after curing and greatly improving the appearance quality of the brush handle 100.

[0051] In an optional embodiment, the inlay groove 111 is provided with a first limiting part 114, and the second housing 20 is provided with a second limiting part 211. The first limiting part 114 and the second limiting part 211 cooperate to prevent the second housing 20 from rotating relative to the hand-held part 11, so that the second housing 20 can be more securely fixed in the inlay groove 111.

[0052] For example, a hollow cavity 21 extending through both ends is formed inside the second housing 20. The second limiting part 211 is a limiting groove formed on the inner sidewall of the hollow cavity 21, and the first limiting part 114 is a limiting platform formed on the outer sidewall of the inlay groove 111. When the first housing 10 is inserted into the hollow cavity 21, the outer sidewall of the inlay groove 111 fits against the inner sidewall of the hollow cavity 21, and the limiting platform cooperates with the limiting groove to restrict the rotation of the second housing 20 relative to the handheld part 11, so that the second housing 20 can be more securely fixed in the inlay groove 111.

[0053] In one optional embodiment, the inlay groove 111 is provided with a first fixing part, and the second housing 20 is provided with a second fixing part. The first fixing part and the second fixing part cooperate to fix the second housing 20 in the inlay groove 111, thereby realizing a fixed connection between the second housing 20 and the first housing 10.

[0054] In an optional embodiment, one of the first fixing part and the second fixing part can be a snap-fit ​​part, and the other of the first fixing part and the second fixing part can be a slot part. The slot part engages with the snap-fit ​​part so that the second housing 20 can be fixed in the inlay groove 111.

[0055] For example, the first fixing part is a snap-fit ​​part formed on the outer wall of the inlay groove 111, and the second fixing part is a slot part formed on the inner wall of the hollow cavity 21. The position of the snap-fit ​​part corresponds to the position of the slot part so that the second housing 20 can be fixed in the inlay groove 111.

[0056] In an optional embodiment, the first fixing part is the outer side wall of the inlay groove 111, and the second fixing part can be the inner side wall of the hollow cavity 21. After the hollow cavity 21 is fixed in the inlay groove 111, the outer side wall of the inlay groove 111 and the inner side wall of the hollow cavity 21 are interference-fitted, so that the second housing 20 can be fixed in the inlay groove 111.

[0057] In an optional embodiment, the first fixing part includes an adhesive groove 112 formed on the outside of the inlay groove 111 and adhesive filling the adhesive groove 112, and the second fixing part includes an adhesive surface formed on the inner wall of the second housing 20, wherein the adhesive is bonded to the adhesive surface, so that the two housings of different materials can be firmly bonded together.

[0058] In an optional embodiment, the outer wall of the insert groove 111 is also formed with a plurality of elastic grooves 113 extending in the axial direction to increase the elastic deformation of the hand grip 11, so that the hand grip 11 can be inserted into the hollow cavity 21, and at the same time, it can recover its elastic deformation after the second housing 20 is assembled, so that the second housing 20 is firmly fixed on the hand grip 11.

[0059] In one alternative implementation, the thickness of the second housing 20 is between 0.5 mm and 3.5 mm, which not only ensures the strength of the second housing 20, but also does not affect antennas such as Bluetooth and WiFi.

[0060] In an optional embodiment, the second housing 20 is fixed to the first housing 10 by injection molding, which reduces the assembly process between the second housing 20 and the first housing 10, greatly improving the manufacturing efficiency of the brush handle 100 and ensuring product quality.

[0061] In one alternative embodiment, the second housing 20 is made of ceramic material, which has a ceramic appearance effect. It satisfies the functions of hand feel, aesthetics and durability of brush handle 100, and also enables the output of antenna signal. The overall design is thin, stylish and novel.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. An electric toothbrush characterized by comprising: The electric toothbrush comprises: a brush handle, a cavity is formed in the brush handle, and a driving assembly is arranged in the cavity; a brush head, the brush head is arranged on the brush handle, so that the driving assembly can drive the brush head to clean the oral cavity; wherein the brush handle comprises a second shell made of a non-metal wear-resistant material and a first shell different from the material of the second shell, the first shell is provided with an operation area for controlling the operation of the electric toothbrush, and the second shell is configured to cover the outer side of the first shell and expose the operation area to the outside.

2. The electric toothbrush according to claim 1, wherein The second shell and the first shell have a boundary line, the boundary line is perpendicular to the axial direction of the brush handle or the extension direction of the boundary line gradually approaches one end of the brush head from one side of the operation area to the other side opposite to the operation area.

3. The electric toothbrush according to claim 2, wherein The brush handle has a second end connected with the brush head and a first end opposite to the second end, the operation area is arranged on one side of the first shell close to the second end, and at least part of the boundary line is located on the side of the operation area away from the second end.

4. The electric toothbrush according to claim 3, wherein The boundary line has a first vertex on the side where the operation area is located, and the first vertex is located on the side of the operation area away from the second end.

5. The electric toothbrush according to claim 4, wherein The boundary line has a second vertex on the side opposite to the operation area, and the second vertex is on the side of the first vertex towards the second end.

6. The electric toothbrush according to claim 5, wherein The ratio of the distance between the first vertex and the second vertex to the maximum size of the first shell is within the range of 1 to 2.

7. The electric toothbrush according to claim 2, wherein The boundary line is located on the side of the first shell close to the second end of the brush handle and is at 1 / 2 to 2 / 3 of the brush handle.

8. The electric toothbrush according to claim 1, wherein The first shell comprises a hand holding part and a tapered part, the cross-sectional area of the tapered part gradually decreases from the side close to the hand holding part to the side close to the brush head, the operation area is arranged on the tapered part, and the second shell is at least partially covered on the outer side of the hand holding part.

9. The electric toothbrush according to claim 8, characterized in that The surface of the hand holding part is provided with an inlaid groove, the depth of the inlaid groove is matched with the thickness of the second shell, and the second shell covers the outer side of the inlaid groove.

10. The electric toothbrush according to claim 9, wherein The inlaid groove is provided with a first limiting part, the second shell is provided with a second limiting part, the first limiting part and the second limiting part are matched, and the first limiting part and the second limiting part are used for preventing the second shell from rotating relative to the hand holding part.

11. The electrically powered toothbrush of claim 9, wherein, The inlaid groove is provided with a first fixing part, the second shell is provided with a second fixing part, the first fixing part and the second fixing part are matched, and the first fixing part and the second fixing part are used for fixing the second shell in the inlaid groove.

12. The electric toothbrush according to claim 11, wherein The first fixing part comprises a glue groove formed on the outer side of the inlaid groove and glue filled in the glue groove, and the second fixing part comprises a glue surface formed on the inner wall of the second shell, and the glue is bonded with the glue surface.

13. The electric toothbrush according to claim 1, wherein The thickness of the second shell is between 0.5 mm and 3.5 mm.

14. The electrically powered toothbrush according to claim 1, wherein The second shell and the first shell are fixed by injection molding.

15. The electrically powered toothbrush of claim 14, wherein, The second shell is a second shell made of ceramic material.

Images