Switching mechanism for electric toothbrush and electric toothbrush
By designing an electric toothbrush switch mechanism that uses a rocker to control the contact or separation of the conductive shrapnel and the contact sheet, the problem of high cost of existing electric toothbrush switches is solved, and the effect of reducing costs and improving user experience is achieved.
Patent Information
- Application Number
- CN202421488604.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The button switches of existing electric toothbrushes are costly and require lower costs.
A switch mechanism for electric toothbrush is designed, and a rocker is used to control the contact or separation of the conductive shrapnel and the contact sheet. The conductive shrapnel and the contact sheet are disconnected or turned on by the rotation of the rocker, thereby realizing the switching function.
Through the design of this switch mechanism, the cost of electric toothbrush is reduced, while avoiding mist touch, making the feel comfortable, and improving the user's sense of use.
Smart Images
Figure CN222762851U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of oral cleaning, and in particular to a switch mechanism for an electric toothbrush and an electric toothbrush. Background Art
[0002] Electric toothbrushes can generate high-frequency vibrations through the rapid rotation or vibration of the motor, instantly breaking down toothpaste into fine foam and deeply cleaning the gaps between teeth. At the same time, the vibration of the bristles can promote blood circulation in the oral cavity and massage the gum tissue. However, the current push-button switch of electric toothbrushes is relatively expensive. Utility Model Content
[0003] The present application aims to provide a switch mechanism for an electric toothbrush, which has a lower cost. The present application also provides an electric toothbrush including the switch mechanism.
[0004] The present application proposes a switch mechanism for an electric toothbrush, comprising:
[0005] A support, wherein the support is provided with a fulcrum;
[0006] A seesaw, the seesaw being rotatably connected to the bracket about the fulcrum;
[0007] A conductive spring sheet, wherein the seesaw rotates to press the conductive spring sheet or separate from the conductive spring sheet, and
[0008] The contact sheet and the conductive spring sheet are arranged opposite to each other, and both the contact sheet and the conductive spring sheet are made of conductive materials.
[0009] When the conductive spring sheet and the seesaw are separated, the conductive spring sheet contacts the contact sheet to conduct the circuit.
[0010] When the conductive spring sheet is pressed and deformed by the seesaw, the conductive spring sheet and the contact sheet are separated, so that the circuit is disconnected.
[0011] In at least one possible implementation, the seesaw includes an elastic portion, and the bracket includes a seesaw holding portion.
[0012] The seesaw holding portion presses the elastic portion in the direction of the rotation axis of the seesaw, thereby holding the seesaw in position by frictional force.
[0013] In at least one possible implementation manner, two seesaw holding parts are provided, and two elastic parts are provided, and the two seesaw holding parts respectively press the two elastic parts from opposite sides.
[0014] In at least one possible implementation, the conductive spring comprises a portion extending obliquely and a portion extending straightly.
[0015] The inclined extending portion and the seesaw form an angle,
[0016] The straight extending portion is perpendicular to the seesaw, and the straight extending portion can be in contact with or separated from the seesaw.
[0017] In at least one possible embodiment, the inclined extending portion is located on the radially outer side of the electric toothbrush with respect to the straight extending portion, and the contact portion at one end of the seesaw is used to contact the straight extending portion.
[0018] When the seesaw rotates to move the contact portion radially inward, the contact portion of the seesaw contacts the straight extending portion; when the seesaw rotates to move the contact portion radially outward, the contact portion of the seesaw separates from the straight extending portion, and the inclined extending portion separates from the contact portion.
[0019] In at least one possible implementation, the seesaw is provided with an extension section, the extension section extends toward the conductive spring sheet, and the extension section is provided with a convex point protruding toward the conductive spring sheet.
[0020] In at least one possible embodiment, the seesaw is provided with a first protrusion and a second protrusion, wherein the first protrusion and the second protrusion protrude from a main body of the seesaw toward the same side.
[0021] The first protrusion and the second protrusion are respectively arranged on both sides of the fulcrum. Pressing the first protrusion can cause the seesaw to rotate around the fulcrum, thereby causing the second protrusion to tilt. Pressing the second protrusion can cause the seesaw to rotate around the fulcrum, thereby causing the first protrusion to tilt.
[0022] The present application also proposes an electric toothbrush, which includes a rubber package, a shell and a switch mechanism for an electric toothbrush according to any one of the above technical solutions.
[0023] In at least one possible embodiment, the rubber package is provided with a first button and a second button.
[0024] The first button corresponds to a first protrusion of the seesaw on one side of the fulcrum,
[0025] The second button corresponds to a second protrusion of the rocker on the other side of the fulcrum.
[0026] In at least one possible implementation, the first button is a power-on button, and the second button is a power-off button.
[0027] By adopting the above technical solution, a seesaw is used to control the contact or separation of the conductive spring sheet and the contact sheet, thereby controlling the on or off of the circuit, which can reduce the cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 A cross-sectional view of the electric toothbrush according to an embodiment of the present application is shown after the second button is pressed.
[0029] Figure 2 Shows Figure 1 A partial enlarged view of .
[0030] Figure 3 A cross-sectional view of the electric toothbrush after the first button is pressed according to an embodiment of the present application is shown.
[0031] Figure 4 Shows Figure 3 A partial enlarged view of .
[0032] Figure 5 Shows Figure 2 A partial enlarged view of .
[0033] Figure 6 An exploded view of an electric toothbrush according to an embodiment of the present application is shown.
[0034] Figure 7 A schematic structural diagram of a seesaw of an electric toothbrush according to an embodiment of the present application is shown.
[0035] Description of Reference Numerals
[0036] 1 bracket 11 fulcrum 12 seesaw holding portion 13 spring sheet fixing portion
[0037] 2 rocker 21 first protrusion 22 second protrusion 23 extension section 24 elastic part
[0038] 3 conductive spring 31 first section 32 second section 33 third section 34 fourth section 35 fifth section
[0039] 4 contact pieces
[0040] 5 Rubber bag 51 First button 52 Second button
[0041] 6 Shell
[0042] A axial R radial DETAILED DESCRIPTION
[0043] In order to more clearly explain the above-mentioned purposes, features and advantages of the present application, the specific implementation methods of the present application are described in detail in this section in conjunction with the accompanying drawings. In addition to the various implementation methods described in this section, the present application can also be implemented in other different ways. Without violating the spirit of the present application, those skilled in the art can make corresponding improvements, deformations and substitutions, so the present application is not limited by the specific embodiments disclosed in this section. The scope of protection of the present application shall be subject to the claims.
[0044] like Figures 1 to 6 As shown, an embodiment of the present application provides an electric toothbrush, which includes a housing 6, a rubber package 5 and a switch mechanism, and the switch mechanism includes a bracket 1, a rocker 2, a conductive spring 3 and a contact piece 4.
[0045] The housing 6 may form a cavity for accommodating a battery, a motor, a driving mechanism, etc. The rubber coating 5 may be connected to the housing 6, and the rubber coating 5 may be provided with a first button 51 and a second button 52, and the first button 51 and the second button 52 may be arranged along the axial direction A (or length direction) of the electric toothbrush. The first button 51 may be a power-on button, and the second button 52 may be a power-off button. The rubber coating 5 may be waterproof and elastic, and the rubber coating 5 may prevent water leakage from damaging the electronic components in the housing 6, and the first button 51 and the second button 52 may be restored to their original state after the external force is removed (i.e., the pressing is canceled).
[0046] The bracket 1 , the rocker 2 , the conductive spring piece 3 and the contact piece 4 are all arranged in the cavity of the housing 6 .
[0047] The bracket 1 is provided with a fulcrum 11 and a seesaw holding portion 12, and the seesaw 2 is rotatably connected to the bracket 1 around the fulcrum 11. The bracket 1 is also provided with a spring fixing portion 13, and the conductive spring 3 can be fixedly connected to the spring fixing portion 13. The seesaw 2 can extend along the axial direction A of the electric toothbrush (including extending substantially along the axial direction A), and the conductive spring 3 can contact the positive electrode or the negative electrode of the battery.
[0048] The seesaw holding part 12 can press the seesaw 2 along the rotation axis direction of the seesaw 2, so that the seesaw 2 is kept in position by friction. Specifically, two seesaw holding parts 12 can be provided, and the two seesaw holding parts 12 can respectively press the seesaw 2 from opposite sides to keep the seesaw 2 in position, that is, the rotation of the seesaw 2 needs to overcome the friction between the seesaw holding part 12 and the seesaw 2 (the elastic part 24 described later), and when there is no manual force to press, it will not move due to factors such as vibration and gravity.
[0049] The seesaw 2 is provided with a first protrusion 21 and a second protrusion 22, and the first protrusion 21 and the second protrusion 22 can protrude from the main body of the seesaw 2 toward the same side along the radial direction R of the electric toothbrush. The first protrusion 21 and the second protrusion 22 are respectively provided on both sides of the axial direction A of the fulcrum 11, and pressing the first protrusion 21 can make the seesaw 2 rotate around the fulcrum 11 and tilt the second protrusion 22 (i.e., extend outward in the radial direction), and pressing the second protrusion 22 can make the seesaw 2 rotate around the fulcrum 11 and tilt the first protrusion 21 (i.e., extend outward in the radial direction).
[0050] The first protrusion 21 corresponds to the first button 51. Pressing the first button 51 can apply pressure to the first protrusion 21 to tilt the second protrusion 22. The second protrusion 22 corresponds to the second button 52. Pressing the second button 52 can apply pressure to the second protrusion 22 to tilt the first protrusion 21.
[0051] In the axial direction A of the electric toothbrush, the conductive spring sheet 3 can be arranged at the rear side of the seesaw 2 (the side away from the brush head). The seesaw 2 can be provided with an extension section 23, which can extend toward the conductive spring sheet 3. The extension section 23 can be provided with a convex point protruding toward the conductive spring sheet 3. The convex point can reduce the contact area between the seesaw 2 and the conductive spring sheet 3, reduce friction, and make it easy for the convex point to slide over the surface of the conductive spring sheet 3, so that the conductive spring sheet 3 is less worn and the service life is extended.
[0052] like Figure 7 As shown, the seesaw 2 may be provided with an elastic portion 24, and two elastic portions 24 may be provided. The two elastic portions 24 may be respectively squeezed by the two seesaw holding portions 12, so that the seesaw 2 maintains its position and does not rotate at will. In one example, the elastic portion 24 is located between the second protrusion 22 and the extension section 23, and the elastic portion 24 may be in the form of an elastic arm extending from the body of the seesaw 2, that is, there may be a gap between the elastic portion 24 and the body of the seesaw 2. Specifically, after pressing the first protrusion 21, the second protrusion 22 may be kept in a tilted state (such as Figure 4 As shown), after pressing the second protrusion 22, the first protrusion 21 can be kept in the tilted state (as shown Figure 2 shown).
[0053] The contact piece 4 can be fixedly connected to the bracket 1, and the contact piece 4 and the conductive spring piece 3 are arranged opposite to each other. After pressing the first button 51, that is, when the rocker 2 is not in contact with the conductive spring piece 3 (refer to Figure 4 ), the contact sheet 4 and the conductive spring sheet 3 can be pressed and contacted. The contact sheet 4 and the conductive spring sheet 3 are both made of conductive materials. When the contact sheet 4 and the conductive spring sheet 3 are in contact, the circuit of the electric toothbrush can be turned on, and the battery can supply power to the electric toothbrush. After pressing the second button 52, that is, when the rocker 2 squeezes and deforms the conductive spring sheet 3, (refer to Figure 2), the contact piece 4 and the conductive spring piece 3 can be separated, so that the circuit is disconnected and the electric toothbrush is turned off.
[0054] like Figure 5 As shown, the conductive spring sheet 3 may include a first section 31, a second section 32, a third section 33, a fourth section 34 and a fifth section 35, which are connected in sequence, for example, each section may be integrally formed.
[0055] The first section 31 can be connected to the spring fixing portion 13. In the axial direction A of the electric toothbrush, the first section 31 can be located at the rear side of the spring fixing portion 13. For example, the first section 31 can contact the positive electrode of the battery. In the axial direction A of the electric toothbrush, the second section 32, the third section 33, the fourth section 34 and the fifth section 35 can be located at the front side of the spring fixing portion 13.
[0056] The second section 32 can be inclined relative to the cross section (ie, radial direction) of the electric toothbrush, or the second section 32 can form an angle with the extension direction (axial direction A) of the seesaw 2. For example, the second section 32 is inclined toward the radial inner side ( Figure 5 The lower side of the electric toothbrush) extends to the front side of the electric toothbrush ( Figure 5 The third section 33 may be parallel to the cross section of the electric toothbrush, or the third section 33 may be perpendicular (including substantially perpendicular) to the extension direction of the seesaw 2, and the third section 33 is used to cooperate with the extension section 23 of the seesaw 2. When the second protrusion 22 is pressed, the extension section 23 and the third section 33 may contact each other, and when the first protrusion 21 is pressed, the extension section 23 tilts up and the third section 33 may be separated and may be located next to the second section 32.
[0057] The inclination angle of the second section 32 can be adjusted according to the size of the axial space in the housing 6. For example, when the space is small, the inclination of the second section 32 relative to the cross section of the electric toothbrush can be smaller, so that the conductive spring 3 occupies less space.
[0058] The fourth section 34 may be arranged obliquely relative to the cross section of the electric toothbrush, and the fourth section 34 may extend toward the contact piece 4. Optionally, the fourth section 34 and the second section 32 may be substantially parallel.
[0059] The fifth section 35 can be bent relative to the fourth section 34 to form a protrusion, which can be rounded, so as to reduce the contact area between the contact piece 4 and the conductive spring piece 3, thereby reducing friction and extending the service life of the contact piece 4 and the conductive spring piece 3.
[0060] It can be seen that the conductive spring 3 may include an inclined extending portion (i.e., the second section 32) and a straight extending portion (i.e., the third section 33), and the inclined extending portion may form an angle with the seesaw 2. The straight extending portion may be perpendicular (including substantially perpendicular) to the seesaw 2, and the straight extending portion may be in contact with or separated from the seesaw 2.
[0061] The inclined extension portion is located outside the straight extension portion in the radial direction R of the electric toothbrush, and the contact portion (i.e., the extension section 23) at one end of the seesaw 2 is used to contact the straight extension portion. When the seesaw 2 rotates to move the contact portion radially inward, the contact portion of the seesaw 2 contacts the straight extension portion; when the seesaw 2 rotates to move the contact portion radially outward, the contact portion of the seesaw 2 separates from the straight extension portion, and the inclined extension portion separates from the contact portion.
[0062] Reference Figures 1 to 4 Describe the process of turning on and off an electric toothbrush.
[0063] like Figure 3 and Figure 4 As shown, when the first button 51 is pressed, the first protrusion 21 is pressed down and the second protrusion 22 is tilted. The rocker 2 and the conductive spring sheet 3 are separated, and the conductive spring sheet 3 returns to its original state and contacts the contact sheet 4, the circuit is turned on, and the electric toothbrush is turned on.
[0064] Understandably, Figure 4 , a state in which the pressing is cancelled after the first button 51 is pressed is shown, and thus, the portion of the rubber package 5 corresponding to the first button 51 bounces up and separates from the first protrusion 21 .
[0065] like Figure 1 and Figure 2 As shown, when the second button 52 is pressed, the second protrusion 22 is pressed down and the first protrusion 21 is tilted. The rocker 2 squeezes the conductive spring sheet 3, causing the conductive spring sheet 3 to elastically deform, and the conductive spring sheet 3 and the contact sheet 4 are separated, the circuit is disconnected, and the electric toothbrush is turned off.
[0066] Understandably, Figure 2 , the state in which the pressing is cancelled after the second button 52 is pressed is shown, and thus, the portion of the rubber package 5 corresponding to the second button 52 pops up and separates from the second protrusion 22 .
[0067] The present invention can turn the electric toothbrush on and off by pressing the rocker 2 to move, thereby avoiding accidental touch control, and at the same time providing a comfortable hand feel and improving the user experience. In addition, no circuit board or control chip is required to control the on and off, thus reducing the cost of the electric toothbrush.
[0068] It should be understood that at least some aspects or features of the above-mentioned implementation modes, embodiments or examples may be appropriately combined.
[0069] It is understood that in the present application, when the number of parts or components is not particularly limited, the number may be one or more, and the multiple here means two or more. For the case where the number of parts or components shown in the drawings and / or described in the specification is a specific number such as two, three, four, etc., the specific number is usually exemplary and not restrictive, and it can be understood as multiple, that is, two or more, but this does not mean that the present application excludes the case of one.
[0070] In the present application, unless otherwise clearly stated or limited, the terms such as "install", "assemble", "assemble", "connect", "connect", "couple", "link", "abut", "connect", "interconnect", "intercommunication", "conduction", "fixation", "fastening" and the like should be understood in a broad sense, for example, they can be direct or indirect. For example, regarding connection, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly stated or limited. For example, regarding connectivity / conduction, it can be direct connectivity / conduction, or it can be indirect connectivity / conduction via an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0071] In the present application, unless otherwise clearly stated or limited, a component disposed on / installed on / located on / accommodated on / placed in, within, inside, etc. another component may be any of the following two situations: a part or most of the one component is located in the other component; and the one component is completely accommodated in the other component.
[0072] Although the present application is described in detail using the above-mentioned embodiments, it is obvious to those skilled in the art that the present application is not limited to the embodiments described in this specification. The present application can be modified and implemented as a modified embodiment without departing from the subject matter and scope of the present application as determined by the claims. Therefore, the description in this specification is for the purpose of illustration and does not have any restrictive meaning for the present application.
Claims
1. A switch mechanism for an electric toothbrush, characterized in that: include: A support, wherein the support is provided with a fulcrum; A seesaw, the seesaw being rotatably connected to the bracket about the fulcrum; A conductive spring sheet, wherein the seesaw rotates to press the conductive spring sheet or separate from the conductive spring sheet, and The contact sheet and the conductive spring sheet are arranged opposite to each other, and both the contact sheet and the conductive spring sheet are made of conductive materials. When the conductive spring sheet and the seesaw are separated, the conductive spring sheet contacts the contact sheet to conduct the circuit. When the conductive spring sheet is pressed and deformed by the seesaw, the conductive spring sheet and the contact sheet are separated, so that the circuit is disconnected.
2. The switch mechanism for an electric toothbrush according to claim 1, characterized in that: The seesaw includes an elastic portion, and the bracket includes a seesaw holding portion. The seesaw holding portion presses the elastic portion in the direction of the rotation axis of the seesaw, thereby holding the seesaw in position by frictional force.
3. The switch mechanism for an electric toothbrush according to claim 2, characterized in that: The seesaw holding parts are provided with two, the elastic parts are provided with two, and the two seesaw holding parts respectively press the two elastic parts from opposite sides.
4. The switch mechanism for an electric toothbrush according to claim 1, characterized in that: The conductive spring sheet includes a portion extending obliquely and a portion extending straightly, The inclined extending portion and the seesaw form an angle, The straight extending portion is perpendicular to the seesaw, and the straight extending portion can be in contact with or separated from the seesaw.
5. The switch mechanism for an electric toothbrush according to claim 4, characterized in that: The inclined extending portion is located outside the straight extending portion in the radial direction of the electric toothbrush, and the contact portion at one end of the seesaw is used to contact the straight extending portion. When the seesaw rotates to move the contact portion radially inward, the contact portion of the seesaw contacts the straight extending portion; When the seesaw rotates to move the contact portion radially outward, the contact portion of the seesaw is separated from the straightly extending portion, and the inclinedly extending portion is separated from the contact portion.
6. The switch mechanism for an electric toothbrush according to claim 1, characterized in that: The seesaw is provided with an extension section, the extension section extends toward the conductive spring sheet, and the extension section is provided with a convex point protruding toward the conductive spring sheet.
7. The switch mechanism for an electric toothbrush according to claim 1, characterized in that: The seesaw is provided with a first protrusion and a second protrusion, wherein the first protrusion and the second protrusion protrude from a main body of the seesaw toward the same side, The first protrusion and the second protrusion are respectively arranged on both sides of the fulcrum. Pressing the first protrusion can cause the seesaw to rotate around the fulcrum, thereby causing the second protrusion to tilt. Pressing the second protrusion can cause the seesaw to rotate around the fulcrum, thereby causing the first protrusion to tilt.
8. An electric toothbrush, characterized in that: The electric toothbrush comprises a rubber coating, a housing and a switch mechanism for an electric toothbrush according to any one of claims 1 to 7.
9. The electric toothbrush according to claim 8, characterized in that: The rubber bag is provided with a first button and a second button, The first button corresponds to a first protrusion of the seesaw on one side of the fulcrum, The second button corresponds to a second protrusion of the rocker on the other side of the fulcrum.
10. The electric toothbrush according to claim 9, characterized in that: The first button is a power on button, and the second button is a power off button.