Electric toothbrush handle and electric toothbrush

Abstract

The embodiment of the utility model discloses an electric toothbrush handle and an electric toothbrush. The electric toothbrush handle comprises a shell and a sealing rubber sleeve, the shell is provided with a containing cavity and an avoiding hole communicated with the containing cavity, and the avoiding hole is used for a motor shaft to penetrate through; and the sealing rubber sleeve is arranged in the avoiding hole, the sealing rubber sleeve is used for sealing a gap between the hole wall of the avoiding hole and the motor shaft, and an antibacterial structure is arranged at the end, exposed out of the shell, of the sealing rubber sleeve. According to the electric toothbrush handle disclosed by the embodiment of the utility model, the sealing rubber sleeve can be prevented from being polluted by bacteria, and the healthy and sanitary conditions of the handle are improved. The electric toothbrush disclosed by the embodiment of the invention comprises the electric toothbrush handle.

Description

Technical Field

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

[0002] An electric toothbrush usually includes a handle and a replaceable brush head. An electric component is arranged in the handle. The movement of the electric component is transmitted to the brush head through the motor shaft to drive the brush head to move and achieve brushing. Since the motor shaft connects the brush head and the electric component, the motor shaft needs to be waterproof to prevent liquid, foam and other debris flowing along the brush head from flowing to the electric component through the motor shaft, thereby causing damage to the electric component. In the prior art, a sealing waterproof part located between the motor shaft and the housing is usually arranged at the end of the handle. Although the sealing waterproof part can prevent liquid from entering the interior of the handle, since the surface of the sealing waterproof part is often in contact with water and air, if it is not cleaned in time after use, it often remains in a moist state, which is easy to cause impurities to deposit and bacteria to breed, thereby causing the sealing waterproof part to mold and discolor, etc., affecting the appearance of the product and threatening oral health.

[0003] In view of this, it is necessary to propose a new technical solution to overcome the above-mentioned shortcomings. Utility Model Content

[0004] The main purpose of this application is to propose an electric toothbrush handle, which aims to solve the technical problems in the prior art that the sealing and waterproof parts become moldy and discolored, which affect the appearance of the product and threaten oral health.

[0005] To achieve the above-mentioned purpose, the electric toothbrush handle proposed in this application includes:

[0006] A housing, the housing having a receiving cavity and a avoidance hole communicating with the receiving cavity, the avoidance hole being used for the motor shaft to pass through; and,

[0007] A sealing rubber sleeve is arranged in the avoidance hole, and is used to seal the gap between the hole wall of the avoidance hole and the motor shaft. An antibacterial structure is arranged at one end of the sealing rubber sleeve exposed outside the shell.

[0008] In one embodiment, the antibacterial structure is an antibacterial layer plated or coated on the sealing rubber sleeve.

[0009] In one embodiment, the antibacterial structure is a waterproof and oil-proof layer.

[0010] In one embodiment, the antibacterial structure is a parylene plating or coating.

[0011] In one embodiment, the antibacterial layer includes a first part and a second part, the first part covers the end surface of the sealing rubber sleeve exposed outside the shell, and the second part is located on the outer peripheral surface of the sealing rubber sleeve and at least covers the outer end of the sealing rubber sleeve.

[0012] In one embodiment, the sealing rubber sleeve is made of antibacterial material, and the entire sealing rubber sleeve forms the antibacterial structure.

[0013] In one embodiment, the sealing rubber sleeve is a sealing structure having antibacterial particles.

[0014] In one embodiment, the end of the sealing rubber sleeve exposed outside the shell is provided with physical textures, and the physical textures constitute the antibacterial structure.

[0015] In one embodiment, the sealing rubber sleeve includes a base portion and a boss portion protruding upward from the middle portion of the base portion, the base portion abuts against the cavity wall of the accommodating cavity, the boss portion extends into the avoidance hole, and at least a portion of the boss portion is provided with the antibacterial structure.

[0016] The present application also proposes an electric toothbrush, comprising:

[0017] A handle, wherein the handle is any of the above electric toothbrush handles, a motor is disposed in the housing, and a motor shaft of the motor extends out from the avoidance hole; and

[0018] The brush head is plugged into the motor shaft.

[0019] The electric toothbrush handle and electric toothbrush provided in the present application include a sealing rubber sleeve whose end exposed outside the shell is provided with an antibacterial structure, which can prevent the sealing rubber sleeve from being contaminated by bacteria and avoid the surface of the sealing rubber sleeve exposed outside the shell from getting moldy and discolored, so as to maintain the appearance and hygiene of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A side view of an embodiment of an electric toothbrush handle of the present application is shown.

[0022] Figure 2 A three-dimensional assembly diagram of an embodiment of an electric toothbrush handle of the present application with the shell removed is shown.

[0023] Figure 3 A three-dimensional exploded view of an embodiment of an electric toothbrush handle of the present application with the shell removed is shown.

[0024] Figure 4 A three-dimensional exploded view from another perspective of an embodiment of the electric toothbrush handle of the present application with the shell removed is shown.

[0025] Figure 5 A three-dimensional view of a sealing rubber sleeve in an embodiment of an electric toothbrush handle of the present application is shown.

[0026] Figure 6 Shows Figure 1 Sectional view along line AA.

[0027] Figure 7 Shows Figure 6 A partial enlarged view of point B in the middle.

[0028] Figure 8 A schematic diagram showing the arrangement of the antibacterial layer in an embodiment of the electric toothbrush handle of the present application is shown. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] See also Figures 1 to 8 As shown, the present application discloses an electric toothbrush handle 100 and an electric toothbrush having the same. The electric toothbrush handle 100 comprises a housing 1 and a sealing rubber sleeve 3, wherein the housing 1 has a receiving cavity 102 and a avoidance hole 101 connected to the receiving cavity 102, wherein the avoidance hole 101 is used to allow the motor shaft 2 to pass through; the sealing rubber sleeve 3 is arranged in the avoidance hole 101, and the sealing rubber sleeve 3 is used to seal the gap between the hole wall of the avoidance hole 101 and the motor shaft 2, and an antibacterial structure is arranged at one end of the sealing rubber sleeve 3 exposed outside the housing 1.

[0031] The electric toothbrush handle 100 provided in the present application includes a sealing rubber sleeve 3, which is exposed outside the housing 1 and is provided with an antibacterial structure. The antibacterial layer can prevent the sealing rubber sleeve 3 from being contaminated by bacteria, and avoid the surface of the sealing rubber sleeve 3 exposed outside the housing 1 from getting moldy and discolored, so as to maintain the appearance and hygiene of the product.

[0032] In one embodiment, the surface of the sealing rubber sleeve 3 exposed from the housing 1 is the exposed surface 321. In this embodiment, it is the upper surface of the portion of the sealing rubber sleeve 3 surrounding the motor shaft 2. The exposed surface 321 is provided with an antibacterial structure to prevent the sealing rubber sleeve 3 from being contaminated by bacteria and causing mold, discoloration and other defects.

[0033] In one embodiment, the sealing rubber sleeve 3 is a rubber part, specifically, for example, a silicone part. Silicone parts have good sealing performance, anti-aging performance and can be used for food contact. They have the advantages of good sealing, high durability and health and hygiene when used on electric toothbrushes. However, silicone parts have a certain hydrophilicity. They are in direct contact with humid media such as water. If they remain in a humid state, they are easily contaminated by bacteria and cause mold and discoloration, which affects the appearance and poses a health hazard. In this embodiment, the antibacterial structure is an antibacterial layer 322 plated or coated on the sealing rubber sleeve 3; further, the antibacterial layer is a waterproof and oil-proof layer. The present application provides an antibacterial layer on the exposed surface 321 to block the contact between humid media such as water and oil and the exposed surface 321, thereby preventing the sealing rubber sleeve 3 from being contaminated by bacteria.

[0034] In this embodiment, the antibacterial structure is a parylene coating. Specifically, the sealing rubber sleeve 3 includes a silicone body and a parylene coating deposited on the surface of the silicone body. Parylene, i.e. polyparaxylene, is a protective polymer material. The parylene coating can be obtained by vapor deposition under vacuum. The parylene coating can provide a complete high-quality protective layer for the components to resist the invasion of acid, alkali, salt spray, mold and various corrosive gases. It is a relatively effective moisture-proof, mildew-proof, anti-corrosion and salt spray-proof coating at this stage. Regarding the parylene material, for example, Yang Binglun’s article "Parylene, a Highest Quality Three-Proof Material" published in "Ship Electronic Engineering" in 2008, and Han Jiandong and Xu Aidong’s article "Parylene Coating Material and Its Application" published in "Semiconductor Technology" in 2011 have introduced its performance and application, and this application will not repeat them. Of course, in other embodiments, other materials can also be used to form the antibacterial layer 322.

[0035] See also Figure 6 and Figure 7 As shown, in this embodiment, the exposed surface 321 protrudes from the end of the shell 1 to facilitate the discharge of the moist medium. The exposed surface 321 protrudes from the end of the shell 1, that is, the exposed surface 321 is higher than the surface formed by the end of the shell 1, so that the moist medium can flow from the exposed surface 321 to the surface formed by the end of the shell 1 without obstruction, avoiding the moist medium from being blocked between the exposed surface 321 and the end of the shell 1. In this embodiment, the antibacterial layer 322 is only provided on the exposed surface 321. In another embodiment, as Figure 8 As shown, the antibacterial layer 322 includes a first portion 3221 and a second portion 3222, wherein the first portion 3221 covers the end surface of the sealing rubber sleeve 3 exposed outside the housing 1, and the second portion 3222 is located on the outer peripheral surface of the sealing rubber sleeve 3 and at least covers the outer end of the sealing rubber sleeve 3; thus, antibacterial protection can be provided for the portion where the outer peripheral surface of the sealing rubber sleeve 3 and the housing 1 are matched, thereby preventing bacterial growth and contamination caused by liquid infiltrating along the outer peripheral surface of the sealing rubber sleeve 3. In other embodiments, the antibacterial layer 322 can also be provided on the entire surface of the sealing rubber sleeve 3.

[0036] See also Figures 5 to 7 As shown, in this embodiment, the sealing rubber sleeve 3 includes a base portion 31 and a boss portion 32 protruding upward from the middle of the base portion 31, and the end of the shell 1 is provided with an avoidance hole 101 for the boss portion 32 to be inserted. The boss portion 32 is inserted into the avoidance hole 101, the base portion 31 abuts against the cavity wall of the accommodating cavity 102, and the top surface of the boss portion 32 forms the exposed surface 321. The side surface of the boss portion 32 and the top surface 311 of the base portion 31 form a step surface assembled with the shell 1. Since the step surface forms an L-shaped folding surface, it has a better effect of preventing liquid from entering the interior of the handle 100 through the gap between the sealing rubber sleeve 3 and the shell 1. Further, in this embodiment, the side surface of the boss portion 32 and the top surface 311 of the base portion 31 are provided with sealing ribs 35 that contact the chamber of the accommodating chamber 102 of the housing 1; in other embodiments, the side surface of the boss portion 32 and the top surface 311 of the base portion 31 may also be provided with the sealing ribs 35 on only one of them. In one embodiment, the sealing ribs 35 are annular protrusions with an arc-shaped cross section, and the sealing ribs 35 can be provided in multiple strips on the side surface of the boss portion 32 and the top surface 311 of the base portion 31, so as to enhance the sealing performance through multiple sealing. Further, the electric toothbrush handle 100 also includes a sleeve sealing portion 33 located in the housing 1 and sleeved on the motor shaft 2, and the sleeve sealing portion 33 is provided with a sealing rib 35 that contacts the motor shaft 2. Similarly, the sealing rib 35 is an annular protrusion with an arc-shaped cross section, and the sealing rib 35 can be provided in multiple strips on the sleeve sealing portion 33 to enhance the sealing performance through multiple sealing. In this embodiment, the sleeve sealing portion 33 and the sealing rubber sleeve 3 are integrally formed; in another embodiment, the sleeve sealing portion 33 and the sealing rubber sleeve 3 are separate parts and the two are sealed together.

[0037] In some embodiments, the sealing rubber sleeve 3 is constructed as an antibacterial structure, the sealing rubber sleeve is made of antibacterial material, and the entire sealing rubber sleeve 3 forms the antibacterial structure. For example, in one embodiment, antibacterial particles are provided in the sealing rubber sleeve 3. The antibacterial particles can be one or more, for example, in some embodiments, they are metal nanoparticles such as silver and copper, and in other embodiments, they are metal oxide particles such as titanium dioxide and zinc oxide. In another embodiment, the antibacterial structure provided on the surface of the sealing rubber sleeve 3 is a physical texture formed on the surface of the sealing rubber sleeve 3. In another embodiment, antibacterial particles are provided in the sealing rubber sleeve 3, and an antibacterial structure with physical texture is also formed on the surface of the sealing rubber sleeve 3. The antibacterial structure with physical texture forms a micron-level texture on the surface of an object, which makes it difficult for bacteria and other microorganisms to adhere to and reproduce on the surface of the object, thereby achieving an antibacterial effect. In this embodiment, the exposed surface 321 of the sealing rubber sleeve 3 is provided with shark antibacterial patterns, that is, the unique structure of bionic shark skin - millions of tiny teeth arranged regularly form a surface that is difficult for bacteria to adhere to, thereby inhibiting bacterial contamination.

[0038] Please refer again Figures 1 to 4 As shown, in this embodiment, the housing 1 of the electric toothbrush handle 100 specifically includes an outer shell 10 and an inner shell 11. The inner shell 11 is two half shells arranged on the left and right, that is, the inner shell 11 includes an inner shell seat 111 and an inner shell cover 112. The inner shell seat 111 and the inner shell cover 112 can be buckled together through a snap structure. A circuit board 13, a power supply 14 and a motor 15 are arranged in the inner shell 11. The circuit board 13 is provided with a button for operating the electric toothbrush. The power supply 14 is used to supply power to the circuit board 13 and the motor 15. The motor 15 is, for example, a vibration motor, and its motor shaft 2 extends from the avoidance hole 101 of the housing 1 to drive the brush head to be plugged in. The outer shell 10 is cylindrical and is sleeved on the outer side of the inner shell 11. The motor shaft 2 protrudes from the outer shell 10 to connect with the brush head. When in use, the brush head is inserted into the motor shaft 2 of the electric toothbrush handle 100, and the electric toothbrush can be started by pressing the button.

[0039] From the above description of the specific embodiments, it can be known that the electric toothbrush handle 100 and the electric toothbrush provided in the present application include an antibacterial structure provided at one end of the sealing rubber sleeve 3 exposed outside the shell 1, which can prevent the sealing rubber sleeve 3 from being contaminated with bacteria and avoid the surface of the sealing rubber sleeve 3 exposed outside the shell 1 from being moldy and discolored, so as to maintain the appearance and hygiene of the product.

[0040] The present application also provides an electric toothbrush, comprising a handle 100 and a brush head detachably mounted on the handle 100, and the specific structure of the handle 100 refers to the above embodiment. Since the electric toothbrush provided by the application adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An electric toothbrush handle, characterized in that: include: A housing, the housing having a receiving cavity and a avoidance hole communicating with the receiving cavity, the avoidance hole being used to allow the motor shaft to pass through; as well as, A sealing rubber sleeve is arranged in the avoidance hole, and is used to seal the gap between the hole wall of the avoidance hole and the motor shaft. An antibacterial structure is arranged at one end of the sealing rubber sleeve exposed outside the shell.

2. The electric toothbrush handle according to claim 1, characterized in that: The antibacterial structure is an antibacterial layer plated or coated on the sealing rubber sleeve.

3. The electric toothbrush handle according to claim 2, characterized in that: The antibacterial structure is a waterproof and oil-proof layer.

4. The electric toothbrush handle according to claim 3, characterized in that: The antibacterial structure is a parylene plating or coating.

5. The electric toothbrush handle according to claim 2, characterized in that: The antibacterial layer includes a first part and a second part, the first part covers the end surface of the sealing rubber sleeve exposed outside the shell, and the second part is located on the outer peripheral surface of the sealing rubber sleeve and at least covers the outer end of the sealing rubber sleeve.

6. The electric toothbrush handle according to claim 1, characterized in that: The sealing rubber sleeve is made of antibacterial material, and the entire sealing rubber sleeve forms the antibacterial structure.

7. The electric toothbrush handle according to claim 6, characterized in that: The sealing rubber sleeve is a sealing structure with antibacterial particles.

8. The electric toothbrush handle according to claim 1, characterized in that: One end of the sealing rubber sleeve exposed outside the shell is provided with physical lines, and the physical lines constitute the antibacterial structure.

9. The electric toothbrush handle according to any one of claims 1 to 8, characterized in that: The sealing rubber sleeve includes a base portion and a boss portion protruding upward from the middle portion of the base portion, the base portion abuts against the cavity wall of the accommodating cavity, the boss portion extends into the avoidance hole, and at least a portion of the boss portion is provided with the antibacterial structure.

10. An electric toothbrush, characterized in that: include: A handle, wherein the handle is an electric toothbrush handle as claimed in any one of claims 1 to 9, wherein a motor is disposed in the housing, and a motor shaft of the motor extends out from the avoidance hole; as well as, The brush head is plugged into the motor shaft.

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