Core shell of electric toothbrush

Abstract

The utility model provides an electric toothbrush machine core shell which comprises a shell body, a containing cavity used for containing a machine core support is arranged in the shell body in a hollow mode, the bottom of the shell body is arranged in a totally-closed mode, the top end of the shell body is opened and communicated with the containing cavity, a key concave portion is arranged on the shell body, and a key hole is formed in the key concave portion. A key concave part is arranged on the shell, a soft sealing key is arranged on the key concave part, the soft sealing key is matched with the key concave part, a light-transmitting part for displaying a signal lamp is arranged on the shell, and a blind hole is formed in the light-transmitting part. By the adoption of the technical scheme, comprehensive physical protection is achieved, the risk of component damage is reduced, the service life of the machine core and the service life of the whole electric toothbrush are prolonged, the totally-closed bottom can prevent dust, water and the like from entering the machine core support from the bottom, and the dustproof and waterproof performance of the electric toothbrush is improved; the design of the blind hole enables the light emitted by the signal lamp to be emitted from a specific direction in a more concentrated manner, enhances the brightness and definition of the display of the signal lamp, and has better waterproof performance compared with a through hole.

Description

Technical Field

[0001] This utility model relates to the field of electric toothbrush technology, specifically to an electric toothbrush core housing. Background Technology

[0002] Current electric toothbrushes have an internal support frame for the motor and other components, lacking additional protective structures. When the toothbrush is accidentally dropped or impacted, the support frame and components directly bear the impact force, which can easily lead to loosening, displacement, or even damage. For example, precision components such as the internal motor and control board may experience problems such as solder joint detachment or component damage due to impact, affecting the normal use of the electric toothbrush. Utility Model Content

[0003] Based on the above problems, the purpose of this utility model is to provide an outer shell for an electric toothbrush motor.

[0004] To address the above problems, the following technical solution is provided: an electric toothbrush motor housing, comprising a shell, wherein the shell is hollow and has a receiving cavity for accommodating the motor support, the bottom of the shell is fully enclosed, the top of the shell is open and communicates with the receiving cavity, the shell has a button recess with a button hole, the button recess has a soft-seal button that is adapted to the button recess, and the shell has a light-transmitting part for displaying an indicator light, the light-transmitting part having a blind hole.

[0005] By adopting the above technical solution, compared to existing electric toothbrush motors that only include a support frame, this solution features a motor housing that protects the support frame. The hollow housing contains a cavity to house the support frame, providing comprehensive physical protection. This effectively prevents direct impact from external objects, reducing the risk of component damage and extending the lifespan of the motor and the entire electric toothbrush. The fully enclosed bottom prevents dust and moisture from entering the support frame from the bottom. Simultaneously, the housing's enclosure also reduces the possibility of dust and moisture entering from the sides, improving the electric toothbrush's dust and water resistance, making it particularly suitable for humid environments such as bathrooms. The blind hole design allows the indicator light to be emitted more concentratedly from a specific direction, enhancing the brightness and clarity of the indicator light display. Furthermore, it offers better waterproofing compared to through-hole designs. The soft-seal button is perfectly matched to the button recess, completely sealing and blocking the button hole, preventing dust and moisture from entering the housing through the button hole.

[0006] The present invention further includes an extension groove between the button recess and the blind hole, and the soft-sealed button includes a main body portion fitted into the button recess, an extension portion fitted into the extension groove, and a circular locking portion fitted into the blind hole.

[0007] By adopting the above technical solution, the main body of the soft-seal button is secured within the button recess, the extension portion is secured within the extension groove, and the circular locking portion is secured within the blind hole. This multi-point locking structure makes the connection between the soft-seal button and the housing more stable. During use, the soft-seal button is less likely to loosen or shift, ensuring the reliability of button operation and improving the user experience. The multi-layer locking structure of the soft-seal button can better fit the housing, increasing the adhesion area and reducing gaps. This helps prevent dust, moisture, and other external substances from entering the internal support of the mechanism through the button hole, enhancing the dustproof and waterproof performance of the electric toothbrush and extending the product's service life.

[0008] The present invention further includes: a positioning slot is provided at the other end of the button recess relative to the extension groove, and a positioning part adapted to the positioning slot is provided at one end of the main body corresponding to the positioning slot, and the positioning part is engaged in the positioning slot.

[0009] By adopting the above technical solution, a positioning slot is provided at the other end of the button recess relative to the extension groove, and a positioning part is provided at the end of the main body corresponding to the positioning slot. Through the locking and cooperation of the two, the soft-seal button can be accurately installed in the button recess. During the assembly process, the position of the button can be quickly and accurately determined, improving production efficiency. At the same time, the cooperation of the positioning slot and the positioning part further restricts the range of motion of the soft-seal button in the button recess, avoiding the button from shaking or shifting during use, ensuring accurate alignment of the button with the button hole, ensuring the normal functioning of the button, and improving the reliability of the product.

[0010] The present invention further comprises: the outer periphery of the button hole is provided with multiple teeth at equal intervals, and the soft sealing button has a protrusion on one side corresponding to the button hole that is adapted to the button hole, and the protrusion is engaged in the button hole.

[0011] By adopting the above technical solution, the connection between the soft-seal button and the button hole is made tighter and less prone to falling off. During long-term use, even under frequent pressing and external force, the normal function of the button can be guaranteed. At the same time, the multi-tooth design facilitates venting. When the button is pressed, a small amount of air may be compressed inside the shell due to the button movement. This air can be smoothly discharged through the gap between the teeth and the protrusions, avoiding the accumulation of air inside and the formation of air pressure, which would affect the normal rebound of the button. The equidistant arrangement of the multi-tooth ensures a uniform gap distribution, and the resistance encountered by the gas during the discharge process is more balanced. This design allows the gas to flow more smoothly and there will be no local airflow obstruction, thus ensuring the timeliness and efficiency of venting.

[0012] The present invention further comprises: the shell includes a hard plastic inner shell and an outer plastic soft shell, wherein the outer plastic soft shell is wrapped around the hard plastic inner shell.

[0013] By adopting the above technical solution, the hard plastic inner shell provides better structural strength and support performance, effectively protecting the internal movement support and other components from external impacts and damage. The outer plastic soft shell plays a protective and buffering role on the outside, reducing the intensity of vibration transmitted to the inside and lowering the risk of damage to the movement support and related components due to impact. When subjected to vibration, the hard plastic inner shell can keep the position of the internal components relatively fixed, while the outer plastic soft shell absorbs and disperses vibration energy through its own deformation. The combined effect of the two improves structural stability.

[0014] The present invention further includes: a reinforcing rib on the inner wall of the bottom of the housing for circumferentially limiting the movement support.

[0015] By adopting the above technical solution, circumferential rotation or wobbling of the motor support within the housing can be effectively prevented. During the operation of the electric toothbrush, the motor support needs to maintain a stable position to ensure the normal operation of internal components. The reinforcing ribs provide additional support and constraint, ensuring the stability of the motor support and improving product reliability. When the electric toothbrush is subjected to vibration, the reinforcing ribs can disperse and absorb some of the vibration energy, reducing the impact of vibration on the motor support. This helps protect the precision components inside the motor, reduces the risk of damage caused by vibration, and extends the product's lifespan.

[0016] The present invention is further provided with a limiting part on the inner wall of the opening end of the housing for axially limiting the movement support.

[0017] By adopting the above technical solution, the core bracket can be quickly snapped into place when inserted into the housing, and the axial position of the core bracket in the housing can be accurately determined. This ensures the accurate relative position between the core bracket and other components, enabling the electric toothbrush to perform its various functions normally. At the same time, the limiting part can prevent the core bracket from falling off the housing opening in the axial direction, improving the safety and reliability of the product. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention.

[0019] Figure 2 This is an exploded view of the present invention.

[0020] Figure 3 This is a schematic diagram of the housing and the soft-sealed button of this utility model.

[0021] Figure 4 This is a cross-sectional view of the present invention.

[0022] The labels in the diagram have the following meanings: 1. Housing, 11. Receiving cavity, 12. Button recess, 13. Button hole, 14. Light-transmitting part, 141. Blind hole, 15. Extension groove, 16. Positioning slot, 17. Reinforcing rib, 18. Limiting part, 2. Soft-sealed button, 21. Main body, 22. Extension part, 23. Circular locking part, 24. Positioning locking part, 25. Protrusion. Detailed Implementation

[0023] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0024] Reference Appendix Figure 1-4 An electric toothbrush motor housing includes a housing 1, which is hollow and has a receiving cavity 11 for accommodating the motor support. The bottom of the housing 1 is fully enclosed, and the top of the housing 1 is open and communicates with the receiving cavity 11. The housing 1 has a button recess 12 with a button hole 13. A soft-seal button 2 is provided on the button recess 12 and is adapted to the button recess 12. The housing 1 has a light-transmitting part 14 for displaying an indicator light and a blind hole 141.

[0025] In this embodiment, an extension groove 15 is provided between the button recess 12 and the blind hole 141. The soft-sealed button 2 includes a main body 21 that is locked in the button recess 12, an extension 22 that is locked in the extension groove 15, and a circular locking part 23 that is locked in the blind hole 141.

[0026] In this embodiment, the button recess 12 is provided with a positioning slot 16 at the other end relative to the extension groove 15, and the main body 21 is provided with a positioning part 24 that is adapted to the positioning slot 16 at one end corresponding to the positioning slot 16. The positioning part 24 is engaged in the positioning slot 16.

[0027] In this embodiment, the button hole 13 is further configured with multiple teeth evenly spaced on its outer periphery, and the soft-sealed button 2 is provided with a protrusion 25 on one side corresponding to the button hole 13, which is adapted to the button hole 13. The protrusion 25 is engaged in the button hole 13.

[0028] This embodiment further specifies that the housing 1 includes a hard plastic inner shell and an outer plastic soft shell, with the outer plastic soft shell wrapping around the hard plastic inner shell.

[0029] This embodiment further includes a reinforcing rib 17 on the bottom inner wall of the housing 1 for circumferentially limiting the movement support.

[0030] This embodiment further includes a limiting part 18 on the inner wall of the opening end of the housing 1 for axially limiting the movement support.

[0031] In this technical solution, the limiting part 18 can be a protrusion, a slot, a ring, or located on both sides.

[0032] Although this document frequently uses terms such as housing 1, receiving cavity 11, button recess 12, button hole 13, light-transmitting part 14, blind hole 141, extension groove 15, positioning slot 16, reinforcing rib 17, limiting part 18, soft-sealed button 2, main body part 21, extension part 22, circular locking part 23, positioning locking part 24, and protrusion 25, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. An electric toothbrush movement housing, characterized by: The device includes a housing, which is hollow and has a cavity for accommodating the movement support. The bottom of the housing is fully enclosed, and the top of the housing is open and communicates with the cavity. The housing has a button recess with a button hole and a soft-seal button that fits into the button recess. The housing also has a light-transmitting part for displaying indicator lights and a blind hole.

2. A motorized toothbrush mechanism housing as defined in claim 1, wherein: An extension groove is provided between the button recess and the blind hole. The soft-sealed button includes a main body portion that is locked in the button recess, an extension portion that is locked in the extension groove, and a circular locking portion that is locked in the blind hole.

3. A motorized toothbrush mechanism housing as defined in claim 2, wherein: The button recess is provided with a positioning slot at the other end relative to the extension groove, and the main body is provided with a positioning part that matches the positioning slot at one end, and the positioning part is engaged in the positioning slot.

4. The electric toothbrush mechanism housing according to claim 1, wherein: The outer periphery of the button hole is provided with multiple teeth at equal intervals, and the soft-sealed button has a protrusion on the side corresponding to the button hole that is adapted to the button hole, and the protrusion is engaged in the button hole.

5. The electric toothbrush motor housing according to claim 1, characterized in that: The shell includes a hard plastic inner shell and an outer plastic soft shell, with the outer plastic soft shell covering the hard plastic inner shell.

6. A motorized toothbrush mechanism housing as defined in claim 1, wherein: The bottom inner wall of the housing is provided with reinforcing ribs for circumferentially limiting the movement support.

7. A motorized toothbrush mechanism housing as defined in claim 1, wherein: The inner wall of the opening end of the housing is provided with a limiting part for axially limiting the movement support.

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