Waterproof structure of charging indicator lamp and electric toothbrush

Abstract

The utility model relates to a waterproof structure of a charging indicator lamp and an electric toothbrush, the waterproof structure of the charging indicator lamp comprises a lightproof shell, a sealing body made of a light-transmitting material and a light-emitting element used for indicating a charging state, and the shell is provided with a through hole; the sealing body comprises a filling part and a connecting part, the edge of the connecting part is provided with a bulge which is closed around the filling part, the bulge is connected with the inner surface of the shell by adopting ultrasonic welding, the filling part is arranged in the through hole, and the light-emitting element is arranged on the inner side of the through hole or in the sealing body.

Description

Technical Field

[0001] The present application belongs to the technical field of oral cleaning appliances and relates to a waterproof structure of a charging indicator light, which is used on oral cleaning appliances such as electric toothbrushes. Background Art

[0002] Electric toothbrushes mainly use the rapid rotation or vibration of the electric motor to make the toothbrush head vibrate at high frequency, instantly breaking down the toothpaste into fine foam and deeply cleaning the gaps between teeth. Electric toothbrushes usually have various function indicator lights on the operation panel to indicate the working status of the electric toothbrush, such as the charging indicator light when charging. It is common to open a hole in the shell and place the charging indicator light in the hole, and then expose the charging indicator light directly on the outside of the shell to increase the indication brightness, but the problem of fixing the indicator light and waterproofing needs to be solved. Another way is to set a transparent area on the shell and illuminate the transparent area with the light inside the shell to realize the indication function. However, this method has insufficient indication brightness due to the shell in the middle, which affects the light transmission. However, this method is very expensive to produce. Utility Model Content

[0003] The purpose of this application is to provide a waterproof structure of a charging indicator light, which is used on an electric toothbrush and has low manufacturing cost, simple structure and good waterproof sealing performance.

[0004] The present application is implemented through the following technical solutions.

[0005] The technical solution of the present application is to provide a waterproof structure of a charging indicator light, which is used on an electric toothbrush, and includes an opaque shell, a sealing body made of a light-transmitting material, and a light-emitting element for indicating the charging state, wherein the shell is provided with a through hole;

[0006] The sealing body includes a filling part and a connecting part, the edge of the connecting part is provided with a protrusion closed around the filling part, the protrusion is connected to the inner surface of the shell by ultrasonic welding, the filling part is arranged in the through hole, and the light-emitting element is arranged on the inner side of the through hole or inside the sealing body.

[0007] The waterproof structure of the present technical solution achieves a sealed and waterproof effect by connecting the protrusion of the sealing body to the inner surface of the shell by ultrasonic welding, and can meet the IPX7 waterproof requirement. It has low production cost, simple structure and is easy to assemble.

[0008] Ultrasonic welding (also known as ultrasonic welding) is a solid-state joining technology that uses the conduction and vibration of sound waves in materials to cause local plastic deformation and friction heating to achieve the connection of workpieces. This process is particularly suitable for thermoplastics because these materials can quickly melt and fuse under the action of high-frequency vibration and pressure.

[0009] The connection process is to first install the filling part of the sealing body into the through hole from the inside of the shell, start ultrasonic welding, and allow the protrusion and the inner surface of the shell to undergo plastic deformation and friction heating to achieve mutual connection. The setting of the protrusion realizes the sealing and waterproofing of the through hole after connection.

[0010] In a specific implementation of this technical solution, a tip protruding outward is provided on the end surface of the protrusion, and the tip is embedded and connected to the inner surface of the shell during ultrasonic welding.

[0011] In a specific embodiment of the technical solution, the electric toothbrush further includes a control circuit board, and the light-emitting element is disposed on the control circuit board and is arranged corresponding to the sealing body.

[0012] In a specific implementation of the technical solution, the electric toothbrush further includes a control circuit board, the light emitting element is encapsulated inside the sealing body, and the light emitting element is electrically connected to the control circuit board.

[0013] In a specific implementation of this technical solution, the light-emitting element is an LED light-emitting chip.

[0014] Another technical solution of the present application is to provide an electric toothbrush, characterized in that it includes a waterproof structure of the charging indicator light as described above.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0017] Figure 1 It is a schematic diagram of the partial cross-sectional structure of the electric toothbrush shown in the embodiment of the present application.

[0018] Figure 2 It is a schematic diagram of the structure of the sealing body shown in the embodiment of the present application.

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the sealing body shown in the embodiment of the present application.

[0020] Description of reference numerals:

[0021] 11-housing; 111-through hole; 12-sealing body; 121-filling part; 122-connecting part; 123-protrusion; 124-tip; 13-light-emitting element; 14-control circuit board. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in some embodiments of the present application to clearly and completely describe the technical solutions in some embodiments of the present application. Obviously, the described embodiments are 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.

[0023] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0024] like Figures 1 to 3 As shown in the figure, this embodiment is an electric toothbrush, which includes a brush head and a handle, the brush head is not shown, the handle includes a housing 11 and a core assembly and a control circuit board 14 installed inside the housing 11, the brush head is connected to the driving shaft of the core assembly, and a button is provided on the control circuit board 14, which is a power switch button or a function selection button. Since the internal structure and working principle of the electric toothbrush of this embodiment belong to the prior art in the field, the detailed internal structure thereof will not be described in detail.

[0025] In this embodiment, the handle of the electric toothbrush includes an opaque outer shell 11, a sealing body 12 made of a translucent material, and a light-emitting element 13 for indicating the charging status. The outer shell 11 is provided with a through hole 111; the sealing body 12 includes a filling portion 121 and a connecting portion 122, and the edge of the connecting portion 122 is provided with a protrusion 123 that is closed around the filling portion 121, and the protrusion 123 is connected to the inner surface of the outer shell 11 by ultrasonic welding. The filling portion 121 is arranged in the through hole 111, and the light-emitting element 13 is arranged on the inner side of the through hole 111 or inside the sealing body 12.

[0026] In this way, the protrusion 123 of the sealing body 12 is connected to the inner surface of the shell 11 by ultrasonic welding to achieve a sealing and waterproof effect, which can meet the IPX7 waterproof requirement, with low manufacturing cost, simple structure and easy assembly.

[0027] It should be noted that the connection process between the sealing body 12 and the outer shell 11 is to first insert the filling part 121 of the sealing body 12 into the through hole 111 from the inside of the outer shell 11, start ultrasonic welding, and allow the protrusion 123 and the inner surface of the outer shell 11 to undergo plastic deformation and friction heating to achieve mutual connection. The setting of the protrusion 123 realizes the sealing and waterproofing of the through hole 111 after the connection.

[0028] In this embodiment, a tip 124 protruding outward is provided on the end surface of the protrusion 123, and the tip 124 is embedded and connected to the inner surface of the housing 11 during ultrasonic welding. In this way, after the sealing body 12 and the housing 11 are connected together, the through hole 111 is sealed.

[0029] In this embodiment, the light-emitting element 13 is arranged on the control circuit board 14 and is arranged corresponding to the sealing body 12. The light-emitting element 13 is an LED light-emitting chip. When charging, the light generated by the light-emitting element 13 passes through the sealing body 12 and irradiates from the through hole 111 of the outer shell 11, thereby forming an indicator light during charging, and the charging status is indicated by changing the color.

[0030] In another embodiment, the light emitting element 13 may also be encapsulated inside the sealing body 12 . The light emitting element 13 and the sealing body are integrated into one structure. The sealing body constitutes a protective shell of the light emitting element 13 . The light emitting element 13 extends two pins to be electrically connected to the control circuit board 14 .

[0031] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A waterproof structure of a charging indicator light, used in an electric toothbrush, characterized in that: It comprises a light-proof shell, a sealing body made of a light-transmitting material and a light-emitting element for indicating a charging state, wherein the shell is provided with a through hole; The sealing body includes a filling part and a connecting part, the edge of the connecting part is provided with a protrusion closed around the filling part, the protrusion is connected to the inner surface of the shell by ultrasonic welding, the filling part is arranged in the through hole, and the light-emitting element is arranged on the inner side of the through hole or inside the sealing body.

2. The waterproof structure of the charging indicator light according to claim 1, characterized in that: A tip protruding outward is provided on the end surface of the protrusion, and the tip is embedded and connected to the inner surface of the shell during ultrasonic welding.

3. The waterproof structure of the charging indicator light according to claim 1, characterized in that: The electric toothbrush further comprises a control circuit board, and the light emitting element is arranged on the control circuit board and is arranged corresponding to the sealing body.

4. The waterproof structure of the charging indicator light according to claim 1, characterized in that: The electric toothbrush further comprises a control circuit board. The light emitting element is encapsulated inside the sealing body, and the light emitting element is electrically connected to the control circuit board.

5. The waterproof structure of the charging indicator light according to claim 1, characterized in that: The light emitting element is an LED light emitting chip.

6. An electric toothbrush, characterized in that: A waterproof structure comprising a charging indicator light as claimed in any one of claims 1 to 5.

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