Electric shaver
By driving the rotating parts through the drive components, and utilizing the cooperation of the protrusions and floating parts, as well as the elastic design, the electric shaver achieves active floating motion, solving the problems of high resistance and insufficient closeness when the shaver head contacts the skin, thus improving shaving efficiency and comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING XIAOMI MOBILE SOFTWARE CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-31
AI Technical Summary
Existing rotary electric shavers suffer from high resistance when the shaver head contacts the skin, resulting in poor movement, insufficient closeness, low shaving efficiency, and poor comfort.
The drive component drives the rotating part to rotate, and the protrusion contacts and pushes the floating part. Combined with the elastic force of the elastic component, the blade assembly achieves active floating motion, which enhances the fit with the skin. The curved structure and limiting component ensure smooth and efficient rotation.
It improves the fit between the shaving head and the skin, reduces skin wrinkles, enhances shaving efficiency and comfort, reduces noise, and extends the lifespan of components.
Smart Images
Figure CN224575735U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of shaver technology, and particularly to an electric shaver. Background Technology
[0002] Currently, electric shavers on the market, especially rotary electric shavers, experience significant resistance during the contact and movement of the shaver head with the skin, resulting in uneven movement and insufficient contact between the shaver head and the user's skin. Users must constantly move the shaver and change its angle, leading to reduced shaving efficiency and poor shaving feel and comfort, thus affecting the user experience. Utility Model Content
[0003] Therefore, this application provides an electric shaver that can improve the fit between the shaver head assembly and the user's skin, thereby enhancing shaving efficiency and comfort.
[0004] Specifically, the following technical solutions are included:
[0005] This application provides an electric shaver, the electric shaver comprising:
[0006] Driver components;
[0007] A rotating component is connected to the driving assembly and can rotate under the drive of the driving assembly. The rotating component has a hollow structure inside and a protrusion is provided on the inner wall of the rotating component.
[0008] The device comprises a floating component, an elastic component, and a cutting head assembly. The floating component is connected to the elastic component and the cutting head assembly, respectively. The elastic component is located on the side of the floating component opposite to the cutting head assembly. The floating component is at least partially located within the rotating component and is movable relative to the rotating component. The outer wall of the floating component is provided with a first mating portion, which is used to contact and engage with the protrusion so that the protrusion pushes the first mating portion along the axial direction of the rotating component.
[0009] In the technical solution provided in this application embodiment, since the rotating part and the driving component are connected by transmission, the rotating part rotates under the drive of the driving component, and the protrusion also rotates accordingly. The protrusion gradually moves to the position where it contacts and engages with the first mating part of the floating part. At this time, the first mating part is pushed by the protrusion, thereby causing the floating part and the blade assembly to deflect and float, realizing the active floating motion of the shaver. When the protrusion moves to the position where the first mating part is separated, the floating part can return to its initial position under the elastic force of the elastic member. The electric shaver provided in this application embodiment effectively improves the fit between the blade assembly and the user's skin, disperses the pressure of the blade assembly on the user's skin during shaving, which is conducive to improving the shaving feel and shaving comfort. It can also reduce skin deformation and wrinkles, increase the moving speed of the blade assembly, capture and cut hair more efficiently, and improve shaving efficiency.
[0010] In one possible implementation, the protrusion extends circumferentially along the rotating member, and the thickness of the protrusion gradually increases from both sides to the middle in the direction of extension of the protrusion.
[0011] And / or, guide surfaces are provided on both sides of the width direction of the first mating part, and the guide surfaces are used to guide the protrusion to contact or separate from the middle of the first mating part.
[0012] In the technical solution provided in the embodiments of this application, by setting a ramp guide structure in the protrusion and / or the first mating part, interference between the protrusion and the first mating part during rotation can be avoided, ensuring smooth and efficient relative rotation between the rotating part and the floating part, and avoiding jamming.
[0013] In one possible implementation, the surface of the protrusion that mates with the first mating part is curved, so that the two sides of the protrusion in the extending direction smoothly transition to the middle.
[0014] And / or, the guide surface is curved, thereby smoothly transitioning to the center of the first mating part.
[0015] In the technical solution provided in this application embodiment, by setting the surface and / or guide surface of the protrusion to be curved, the impact force at the moment of contact between the protrusion and the first mating part can be further reduced, the probability of damage to the parts can be reduced, and the service life of the parts can be extended. At the same time, the curved structure provides a more natural and smooth guide trajectory, which makes the engagement / disengagement process between the protrusion and the first mating part smoother and helps the elastic element to reset the cutter head assembly more smoothly, reducing the impact on the user's skin. In addition, the curved structure also helps to reduce the collision noise between the protrusion and the first mating part.
[0016] In one possible implementation, the electric shaver further includes a limiting member, which includes a connected support portion and a limiting portion, the support portion being disposed on one side of the drive assembly and cooperating with the elastic member;
[0017] The inner wall of the floating component is provided with a second mating part, which engages with the limiting part and can move along the height direction of the limiting part.
[0018] In the technical solution provided in the embodiments of this application, during the movement of the floating component, the limiting part can limit the extreme position and deflection angle of the floating component, prevent the floating component from deflecting excessively and causing misalignment or difficulty in resetting, which is beneficial to improving the stability and consistency of the floating component during movement.
[0019] In one possible implementation, there are multiple first mating parts and multiple second mating parts, and the multiple first mating parts and multiple second mating parts are arranged opposite each other in a one-to-one correspondence, and the multiple first mating parts and multiple second mating parts are evenly spaced along the circumference of the floating member.
[0020] In the technical solution provided in this application embodiment, by setting multiple first mating parts evenly spaced, the blade assembly can achieve uniform floating motion in multiple directions, thereby conforming to the skin surface at multiple angles, adapting to the complex curved surfaces of areas such as the face, and improving the degree of skin contact and shaving efficiency of the blade assembly; by setting multiple first mating parts and multiple second mating parts in a one-to-one correspondence, during the process of local deflection and floating of the first mating parts and the floating part, the floating part can be limited by the cooperation between the corresponding second mating parts and the limiting hole, avoiding motion interference caused by the first mating parts and the second mating parts being misaligned in the circumferential direction of the floating part.
[0021] In one possible implementation, the cutter head assembly includes a plurality of blades, and the number of blades is the same as the number of the first mating parts, with each of the plurality of blades corresponding to a plurality of the first mating parts;
[0022] Wherein, the first mating part and the corresponding blade net are located on the same side of the first mating part in the radial direction, or the first mating part and the corresponding blade net are located on opposite sides of the first mating part in the radial direction.
[0023] In the technical solution provided in this application embodiment, multiple blades are arranged one-to-one with multiple first mating parts, realizing the deflection and floating movement of the area where the blades are located on the shaver head assembly. This allows the multiple blades to float more fully and conform to the user's skin, thereby enabling the rotating blades corresponding to the blades to capture and cut hair more fully, effectively improving the shaving efficiency and cleanliness of the electric shaver.
[0024] In one possible implementation, the first mating portion and the second mating portion are coaxially arranged.
[0025] In the technical solution provided in the embodiments of this application, the spatial adaptability of the first mating part and the second mating part is improved. During the process of the first mating part and the floating part undergoing local deflection and floating, the second mating part, which is coaxially arranged with the first mating part, can more accurately adapt to the positional offset of the first mating part. Thus, the mating between the second mating part and the limiting hole is used to limit the first mating part and the floating part as a whole, preventing the floating part from deflecting excessively and causing misalignment or difficulty in resetting.
[0026] In one possible implementation, the limiting part has a limiting hole extending along its own height direction. There are multiple limiting holes, and the multiple limiting holes are provided in a one-to-one correspondence with multiple second mating parts. The width of the limiting hole is adapted to the width of the second mating part.
[0027] In the technical solution provided in this application embodiment, the limiting hole can not only limit the second mating part in its own height direction and limit the deflection angle of the floating part, but also limit the second mating part in the circumferential direction of the floating part to prevent the second mating part and the floating part from rotating and shaking in the circumferential direction, so as to avoid affecting the stability of the floating part and the cutter head assembly during use.
[0028] In one possible implementation, the electric shaver further includes a speed reduction assembly connected to both the drive assembly and the rotating component.
[0029] In the technical solution provided in this application embodiment, by setting a deceleration component, the rotation speed of the rotating component is reduced, thereby reducing the floating frequency of the floating component and the cutter head assembly, avoiding skin discomfort caused by excessively high floating frequency; at the same time, the torque of the rotating component is increased, and the instantaneous strength of the protrusion pushing the first mating part is improved, ensuring that the floating action of the floating component and the cutter head assembly is fully completed.
[0030] In one possible implementation, the drive assembly includes a connected drive member and a drive gear, the inner wall of the first end of the rotating member is provided with an internal gear ring, the reduction assembly is a gear reduction mechanism, and the reduction assembly meshes with the drive gear and the internal gear ring respectively.
[0031] In the technical solution provided in the embodiments of this application, multi-stage gear meshing achieves high torque power transmission, which is efficient and compact, reduces the space occupied, and is conducive to realizing the miniaturization design of electric shavers.
[0032] In one possible implementation, the inner wall of the second end of the rotating member is provided with a flange, and the protrusion is disposed on the flange.
[0033] In the technical solution provided in the embodiments of this application, the flange serves as the base of the protrusion, which improves the local structural strength of the rotating part, enhances the rigidity and reliability of the protrusion, and prevents the protrusion from deforming and shifting. The flange and the protrusion are located at the second end of the rotating part, which makes the spatial distribution of each structure in the rotating part more reasonable and prevents the protrusion from being located at the first end of the rotating part from affecting the normal operation of elastic components and other parts.
[0034] In one possible implementation, the extension length of the protrusion is less than half the circumference of the flange.
[0035] In the technical solution provided in this application embodiment, the shorter extension length of the protrusion reduces the contact time with the first mating part, allowing the floating part and the blade assembly to quickly return to their original position after floating, achieving relatively high-frequency active floating, which is beneficial to improving shaving efficiency; in addition, the shorter extension length of the protrusion reduces the mass of the rotating part, which helps to reduce start-stop energy consumption, improve drive efficiency, and achieve a lightweight design of the electric shaver; at the same time, the shorter extension length of the protrusion can also avoid interference and collision between the protrusion and other components other than the first mating part when rotating. Attached Figure Description
[0036] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0037] Figure 1 An exploded view of the electric shaver provided in the embodiments of this application;
[0038] Figure 2 A schematic diagram of the floating head assembly of an electric shaver provided in an embodiment of this application;
[0039] Figure 3 A partial cross-sectional view of an electric shaver provided in an embodiment of this application;
[0040] Figure 4 A schematic diagram of the floating principle of an electric shaver provided in an embodiment of this application;
[0041] Figure 5 This is a schematic diagram of the assembly of the drive component and the housing provided in an embodiment of this application;
[0042] Figure 6 This is an assembly diagram of the deceleration assembly provided in an embodiment of this application;
[0043] Figure 7 This is a schematic diagram of the structure of the rotating component provided in the embodiments of this application;
[0044] Figure 8 A cross-sectional view of the rotating component provided in an embodiment of this application;
[0045] Figure 9 A schematic diagram of the structure of one side of the floating component provided in the embodiments of this application;
[0046] Figure 10 This is a schematic diagram of the structure of the other side of the floating component provided in the embodiments of this application;
[0047] Figure 11 A schematic diagram of the structure of one side of the limiting member provided in the embodiments of this application;
[0048] Figure 12 This is a schematic diagram of the structure of the other side of the limiting member provided in the embodiments of this application;
[0049] Figure 13 A schematic diagram illustrating the cooperation between the floating component and the limiting component provided in an embodiment of this application;
[0050] Figure 14 This is a cross-sectional view showing the cooperation between the floating component and the limiting component provided in an embodiment of this application.
[0051] The reference numerals in the figure indicate:
[0052] 1-Drive assembly; 11-Drive component; 12-Drive gear;
[0053] 2-Rotating component; 21-Protrusion; 22-Internal gear ring; 23-Flange;
[0054] 3-Floating component; 31-First mating part; 32-Second mating part;
[0055] 4-Elastic element;
[0056] 5-Cutter head assembly; 51-Cutter mesh;
[0057] 6-Shell;
[0058] 7-Top cover;
[0059] 8-Factors;
[0060] 9-Limiting component; 91-Bearing part; 92-Limiting part; 921-Limiting hole;
[0061] 10-Reduction gear assembly; 101-Output gear.
[0062] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0063] 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.
[0064] The directional terms used in the embodiments of this application, such as "up," "down," and "side," are generally based on the relative relationships shown in the figures. These directional terms are used merely to more clearly describe the relationships between structures, not to describe absolute directions. When the product is placed in different orientations, the orientation may change; for example, "up" and "down" may be interchanged.
[0065] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art.
[0066] To make the technical solutions and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.
[0067] Currently, electric shavers on the market, especially rotary electric shavers, produce a "head wave" phenomenon during the contact and movement of the shaver head with the skin. The "head wave" phenomenon is analogous to the wave formed at the bow of a ship moving through water; a large bow wave slows the ship down. Applied to the shaver industry, the "head wave" phenomenon manifests as raised wrinkles on the skin at the front of the shaver head's movement direction during shaving. These wrinkles increase the resistance experienced by the shaver head, making movement less smooth and resulting in insufficient contact between the shaver head and the user's skin. Users must constantly move the shaver and change its angle, leading to reduced shaving efficiency, poor shaving feel and comfort, and a negative impact on the user experience.
[0068] To address the aforementioned technical problems, this application provides an electric shaver that can improve the fit between the shaver head assembly and the user's skin, thereby enhancing shaving efficiency and comfort.
[0069] like Figure 1 As shown, the electric shaver provided in this embodiment includes a drive assembly 1, a rotating component 2, a floating component 3, an elastic component 4, and a shaver head assembly 5. Exemplarily, the electric shaver is a rotary electric shaver.
[0070] The rotating component 2 is connected to the driving component 1 and can rotate under the drive of the driving component 1. The interior of the rotating component 2 is hollow, and the inner wall of the rotating component 2 is provided with a protrusion 21.
[0071] like Figure 3 and Figure 4 As shown, the floating member 3 is connected to the elastic member 4 and the cutter head assembly 5, respectively. The elastic member 4 is located on the side of the floating member 3 opposite to the cutter head assembly 5. The floating member 3 is at least partially located inside the rotating member 2, and the floating member 3 is movable relative to the rotating member 2. The outer wall of the floating member 3 is provided with a first mating part 31, which is used to contact and engage with the protrusion 21, so that the protrusion 21 pushes the first mating part 31 along the axial direction of the rotating member 2. It can be understood that the axial direction of the rotating member 2 is... Figure 4 The vertical direction in the middle.
[0072] like Figure 7 As shown, the rotating part 2 is in the shape of a ring, and under the drive of the drive component 1, the rotating part 2 can rotate around its own central axis.
[0073] like Figure 9 and Figure 10 As shown, the floating component 3 is roughly cylindrical with a hollow interior. One end of the floating component 3 is located inside the rotating component 2, and the other end extends outward from inside the rotating component 2 to connect with the cutter head assembly 5. The floating component 3 and the cutter head assembly 5 can be connected by threaded fasteners, snap-fit connections, or other methods, which are not specifically limited in this application.
[0074] The blade assembly 5 has a rotating blade and a foil 51 for contact with the user's skin. The foil 51 has hair-through holes for allowing hair to enter. There can be multiple hair-through holes, and their shapes include, but are not limited to, rectangular strips. For example, multiple hair-through holes are evenly spaced around the center of the foil 51, and each hair-through hole is a rectangular strip-shaped through-hole extending radially along the body of the foil 51. The rotating blade has blades positioned corresponding to the hair-through holes. The blades cooperate with the foil 51 to cut away hair entering the hair-through holes, achieving shaving or other hair removal effects.
[0075] Optionally, the drive assembly 1 is connected to the rotating blade transmission. While driving the rotating blade to rotate and cut the hair, the drive assembly 1 also drives the rotating part 2 to rotate, which in turn drives the floating part 3 and the blade assembly 5 to float and move, thereby improving the closeness of the electric shaver during shaving.
[0076] The protrusion 21 is located inside the rotating member 2. During the rotation of the rotating member 2, the protrusion 21 gradually moves to a position where it contacts and engages with the first mating part 31 of the floating member 3. At this time, the first mating part 31 is pushed by the protrusion 21, thereby causing the floating member 3 and the blade assembly 5 to produce a deflection and floating motion, realizing the active floating motion of the shaver. Please refer to... Figure 2 , Figure 2 The arrow in the image indicates the deflection and floating direction of the cutter head assembly 5.
[0077] The protrusion 21 can be located on the side of the first mating part 31 closer to the cutter head assembly 5, or it can be located on the side of the first mating part 31 farther away from the cutter head assembly 5. Please refer to [reference needed]. Figure 4 When the protrusion 21 is located on the side of the first mating part 31 near the cutter head assembly 5 (i.e. Figure 4 When the first mating part 31 is located on the upper side of the rotating member 2, during the rotation of the rotating member 2, the protrusion 21 can press down the first mating part 31, causing the side of the floating member 3 where the first mating part 31 is located to deflect downward; when the protrusion 21 is located on the side of the first mating part 31 away from the cutter head assembly 5, during the rotation of the rotating member 2, the protrusion 21 can lift the first mating part 31, causing the side of the floating member 3 where the first mating part 31 is located to deflect upward.
[0078] Elastic element 4 is a part with elastic deformation capability, such as a spring. Figure 4 As shown, the elastic element 4 is located below the floating element 3, that is, on the side of the floating element 3 away from the cutter head assembly 5.
[0079] When the protrusion 21 is located on the side of the first mating part 31 near the cutter head assembly 5, the elastic element 4 can be a compression spring. When the protrusion 21 presses down on the first mating part 31, the elastic element 4 is compressed. When the protrusion 21 separates from the first mating part 31, the elastic element 4 releases its elastic force and extends, causing the side of the floating member 3 where the first mating part 31 is located to rise and return to its original position. When the protrusion 21 is located on the side of the first mating part 31 away from the cutter head assembly 5, the elastic element 4 can be a tension spring. When the protrusion 21 lifts the first mating part 31, the elastic element 4 is stretched. When the protrusion 21 separates from the first mating part 31, the elastic element 4 pulls back and shortens, causing the side of the floating member 3 where the first mating part 31 is located to fall and return to its original position.
[0080] The electric shaver also includes a housing 6, a top cover 7, and a fixing component 8, such as Figure 3 and Figure 5 As shown, the drive assembly 1 is installed inside the housing 6, the rotating member 2 is located on the side of the drive assembly 1 away from the housing 6, and the upper cover 7 is placed on the housing 6 and located between the housing 6 and the cutter head assembly 5. The upper cover 7 has a conical structure, and its circumferential dimension gradually decreases from the housing 6 to the cutter head assembly 5, so as to cover the components inside the housing 6 while avoiding interference with the deflection and floating of the cutter head assembly 5. The fixing member 8 is generally annular, and its upper end is provided with an annular boss extending radially inward. The boss can contact the end of the rotating member 2 away from the drive assembly 1, thereby providing axial limiting for the rotating member 2. Exemplarily, the rotating member 2, the floating member 3, the elastic member 4, and the fixing member 8 are all located within the space enclosed by the upper cover 7 and the housing 6.
[0081] The electric shaver provided in this embodiment of the application, due to the transmission connection between the rotating component 2 and the driving component 1, causes the rotating component 2 to rotate under the drive of the driving component 1, and the protrusion 21 also rotates accordingly. The protrusion 21 gradually moves to the position where it contacts and engages with the first mating part 31 of the floating component 3. At this time, the first mating part 31 is pushed by the protrusion 21, thereby causing the floating component 3 and the blade assembly 5 to produce a deflection and floating motion, realizing the active floating motion of the shaver. When the protrusion 21 moves to the position where the first mating part 31 is separated, the floating component 3 can return to its initial position under the elastic force of the elastic component 4. The electric shaver provided in this embodiment of the application effectively improves the fit between the blade assembly 5 and the user's skin, disperses the pressure of the blade assembly 5 on the user's skin during shaving, which is conducive to improving the shaving feel and shaving comfort. It can also reduce skin deformation and wrinkles, suppress the "head wave phenomenon", increase the moving speed of the blade assembly 5, capture and cut hair more efficiently, and improve shaving efficiency.
[0082] In some embodiments, the protrusion 21 extends circumferentially along the rotating member 2, and the thickness of the protrusion 21 gradually increases from both sides to the center in the extending direction of the protrusion 21. And / or, guide surfaces are provided on both sides of the first mating portion 31 in the width direction, and the guide surfaces are used to guide the protrusion 21 to contact or separate from the center of the first mating portion 31. Wherein, the width direction of the first mating portion 31 is the circumferential direction of the rotating member 2.
[0083] like Figure 7 and Figure 8 As shown, the protrusion 21 extends in an arc shape, and the extension length of the protrusion 21 is less than or equal to the inner circumference of the rotating member 2. The thickness of the protrusion 21 is greatest in the middle. The thickness of the protrusion 21 is its dimension along the axial direction of the rotating member 2. The gradually changing thickness design of the protrusion 21 forms a ramp guide structure, allowing the protrusion 21 to smoothly transition to contact with the first mating part 31 during rotation. This helps reduce impact, noise, and wear, and improves the reliability and smoothness of the floating motion.
[0084] With guide surfaces on both sides of the width direction of the first mating part 31, the guide surfaces form a ramp guide structure. The guide surfaces provide an entry path and an exit path for the protrusion 21, ensuring that the protrusion 21 moves smoothly to the middle area of the first mating part 31, avoiding jamming during the movement, and improving the reliability and smoothness of the floating action.
[0085] In this embodiment, by providing a ramp guide structure in the protrusion 21 and / or the first mating part 31, interference between the protrusion 21 and the first mating part 31 during rotation can be avoided, ensuring smooth and efficient relative rotation between the rotating part 2 and the floating part 3 and preventing jamming.
[0086] In some embodiments, the surface of the protrusion 21 that mates with the first mating part 31 is curved, so that the two sides of the protrusion 21 in the extending direction smoothly transition to the middle; and / or, the guide surface is curved, so as to smoothly transition with the middle of the first mating part 31.
[0087] Figure 7 and Figure 8 The upper surface of the protrusion 21 shown is a surface for engaging with the first mating part 31. This surface is a smooth curved surface, and the protrusion 21 has a shape that is "high in the middle and low on both sides".
[0088] In this embodiment, by setting the surface and / or guide surface of the protrusion 21 to be curved, the impact force at the moment of contact between the protrusion 21 and the first mating part 31 can be further reduced, reducing the probability of damage to the components and helping to extend the service life of the components. At the same time, the curved structure provides a more natural and smooth guide trajectory, which makes the engagement / disengagement process of the protrusion 21 and the first mating part 31 smoother and helps the elastic element 4 to reset the blade assembly 5 more smoothly, reducing the impact on the user's skin. In addition, the curved structure also helps to reduce the collision noise between the protrusion 21 and the first mating part 31.
[0089] In some embodiments, the electric shaver also includes a limiting member 9. For example... Figure 11 and Figure 12 As shown, the limiting member 9 includes a bearing part 91 and a limiting part 92 connected together.
[0090] The support portion 91 is disposed on one side of the drive assembly 1. For example... Figure 4 As shown, the bearing portion 91 mates with the elastic element 4. Figure 13 As shown, the limiting member 9 is located on one side of the floating member 3.
[0091] like Figure 9 and Figure 10 As shown, the inner wall of the floating member 3 is provided with a second mating part 32, which is mated with the limiting part 92 and can move along the height direction of the limiting part 92.
[0092] like Figure 11 and Figure 12 As shown, the support portion 91 is stepped, with one layer supporting the elastic member 4 and the other layer supporting at least part of the rotating member 2, which can rotate relative to the support portion 91.
[0093] The carrier part 91 can be installed on the drive assembly 1 by means of threaded fastener connection, bonding, post-hole connection, etc., and this application does not make specific limitations in this regard.
[0094] The limiting part 92 protrudes outward in a direction perpendicular to the extension plane of the bearing part 91. The height direction of the limiting part 92 is parallel to the axis of the rotating member 2. The limiting part 92 has limiting structures such as guide rail, slider, hole, and groove. The limiting structure makes the second mating part 32 limited by the limiting hole 921 at least in the height direction of the limiting part 92.
[0095] In this embodiment, during the movement of the floating member 3, the limiting part 92 can limit the extreme position and deflection angle of the floating member 3, preventing the floating member 3 from deflecting excessively and causing misalignment or difficulty in resetting, which is beneficial to improving the stability and consistency of the floating member 3 during movement.
[0096] In some embodiments, there are multiple first mating parts 31 and multiple second mating parts 32, and the multiple first mating parts 31 and multiple second mating parts 32 are arranged opposite each other in a one-to-one correspondence, and the multiple first mating parts 31 and multiple second mating parts 32 are evenly spaced along the circumference of the floating member 3.
[0097] For example Figures 9 to 11 As shown, there are three first mating parts 31 and three second mating parts 32. The three first mating parts 31 and the three second mating parts 32 are evenly distributed along the circumference of the floating member 3. The first mating parts 31 and the second mating parts 32 are located on both sides of the radial direction of the floating member 3. The electric shaver can achieve deflection and floating in three directions.
[0098] By setting multiple first mating parts 31 evenly spaced, the shaving head assembly 5 can achieve uniform floating motion in multiple directions, thereby conforming to the skin surface at multiple angles, adapting to the complex curved surfaces of the face and other areas, and improving the skin contact and shaving efficiency of the shaving head assembly 5. By setting multiple first mating parts 31 and multiple second mating parts 32 in a one-to-one correspondence, the floating part 3 can be limited by the cooperation between the corresponding second mating parts 32 and the limiting hole 921 during the local deflection and floating process of the first mating parts 31 and the floating part 3, avoiding motion interference caused by the first mating parts 31 and the second mating parts 32 being misaligned in the circumferential direction of the floating part 3.
[0099] In some embodiments, the cutter head assembly 5 includes a plurality of blades 51, and the number of blades 51 is the same as the number of first mating portions 31, with each blade 51 corresponding to one of the plurality of first mating portions 31. The first mating portion 31 and the corresponding blade 51 are located on the same side radially of the first mating portion 31, or the first mating portion 31 and the corresponding blade 51 are located on opposite sides radially of the first mating portion 31.
[0100] like Figure 2 As shown, there are three blade meshes 51, and the lines connecting the centers of the three blade meshes 51 roughly form an equilateral triangle.
[0101] When the first mating part 31 and the corresponding blade net 51 are located on the same side radially of the first mating part 31, the deflection and floating of the first mating part 31 directly causes the corresponding blade net 51 to float synchronously. For example, when the first mating part 31 deflects and floats downward, the corresponding blade net 51 also deflects and floats downward. When the first mating part 31 and the corresponding blade net 51 are located on opposite sides radially of the first mating part 31, the deflection and floating of the first mating part 31 directly causes the opposite side of the corresponding blade net 51 to float synchronously. At the same time, the corresponding blade net 51 produces opposite floating motions due to the lever principle. For example, when the first mating part 31 deflects and floats downward, the corresponding blade net 51 deflects and floats upward. Both methods can achieve the deflection and floating motion of the blade net 51.
[0102] In this embodiment, multiple blades 51 are arranged in a one-to-one correspondence with multiple first mating parts 31, realizing the deflection and floating movement of the area where the blades 51 are located on the shaver head assembly 5. This allows the multiple blades 51 to more fully conform to the user's skin through floating, thereby enabling the rotating blades corresponding to the blades 51 to more fully capture and cut hair, effectively improving the shaving efficiency and cleanliness of the electric shaver.
[0103] In some embodiments, the first mating part 31 and the second mating part 32 are coaxially arranged, that is, the central axis of the first mating part 31 and the central axis of the second mating part 32 are collinear.
[0104] For example Figure 9 and Figure 10 As shown, both the first mating part 31 and the second mating part 32 are columnar and have the same radial dimensions. The first mating part 31 and the second mating part 32 can be integrally formed in the floating part 3, that is, the floating part 3 can be processed into an integral part by injection molding or other processes; the first mating part 31 and the second mating part 32 can also be integrally connected as the two ends of the same column structure, and the column structure can be inserted into the through hole in the side wall of the floating part 3, so that the second mating part 32 and the first mating part 31 can be formed on the inner and outer sides of the floating part 3 respectively.
[0105] With this setting, the spatial compatibility of the first mating part 31 and the second mating part 32 is improved. During the process of the first mating part 31 and the floating member 3 undergoing local deflection and floating, the second mating part 32, which is coaxially arranged with the first mating part 31, can more accurately adapt to the positional offset of the first mating part 31. Thus, the cooperation between the second mating part 32 and the limiting hole 921 is used to limit the first mating part 31 and the floating member 3 as a whole, preventing the floating member 3 from deflecting excessively and causing misalignment or difficulty in resetting.
[0106] In some embodiments, the limiting part 92 has a limiting hole 921 extending along its own height direction. There are multiple limiting holes 921, and the multiple limiting holes 921 are provided in a one-to-one correspondence with multiple second mating parts 32. The width of the limiting hole 921 is adapted to the width of the second mating part 32.
[0107] Optionally, the number of limiting portions 92 can be one or more. For example, there may be one limiting portion 92, and multiple limiting holes 921 may be distributed at intervals on the same limiting portion 92; or, for example, the number of limiting portions 92 may be the same as the number of limiting holes 921. Figure 11 As shown, the limiting member 9 has three limiting parts 92, and each limiting part 92 has a limiting hole 921.
[0108] The limiting hole 921 is strip-shaped, such as Figure 14 As shown, the second mating part 32 is inserted into the limiting hole 921.
[0109] The width of the limiting hole 921 is slightly larger than the width of the second mating part 32, so that there is a certain gap in the width direction between the second mating part 32 and the limiting hole 921. This allows the limiting hole 921 to limit the second mating part 32 while preventing the second mating part 32 from getting stuck during movement, thus affecting the normal floating movement of the floating member 3. The value of the gap between the second mating part 32 and the limiting hole 921 can be set according to actual needs, and this application does not impose a specific limitation.
[0110] In this embodiment, by setting the width of the limiting hole 921 to match the width of the second mating part 32, the limiting hole 921 can not only limit the second mating part 32 in its own height direction and limit the deflection angle of the floating member 3, but also limit the second mating part 32 in the circumferential direction of the floating member 3, preventing the second mating part 32 and the floating member 3 from rotating and shaking in the circumferential direction, thus avoiding affecting the stability of the floating member 3 and the cutter head assembly 5 during use.
[0111] In some embodiments, the electric shaver further includes a reduction gear 10, which is connected to the drive assembly 1 and the rotating member 2 respectively.
[0112] The deceleration assembly 10 is disposed between the drive assembly 1 and the limiting member 9, such as Figure 6 As shown, a portion of the reduction assembly 10 is located below the limiting member 9, and the stepped structure of the bearing portion 91 of the limiting member 9 provides partial installation space for the reduction assembly 10. The input end of the reduction assembly 10 is connected to the drive assembly 1, and the output end of the reduction assembly 10 is connected to the rotating member 2.
[0113] The reduction assembly 10 can be a planetary reduction structure including a sun gear, planet gears, and a ring gear, or it can be a micro gear reduction mechanism or other types of reduction mechanisms.
[0114] In this embodiment, by setting the deceleration component 10, the rotation speed of the rotating component 2 is reduced, thereby reducing the floating frequency of the floating component 3 and the cutter head assembly 5, avoiding excessive floating frequency that could cause skin discomfort to the user; at the same time, the torque of the rotating component 2 is increased, thereby increasing the instantaneous strength of the protrusion 21 pushing the first mating part 31, ensuring that the floating action of the floating component 3 and the cutter head assembly 5 is fully completed.
[0115] In some embodiments, such as Figure 5 As shown, the drive assembly 1 includes a drive member 11 and a drive gear 12 connected together. The inner wall of the first end of the rotating member 2 is provided with an internal gear ring 22. The reduction assembly 10 is a gear reduction mechanism, and the reduction assembly 10 meshes with the drive gear 12 and the internal gear ring 22 respectively.
[0116] It is understandable that the first end of the rotating part 2 is the end of the rotating part 2 that is close to the drive assembly 1 in its own axial direction.
[0117] The drive gear 12 is coaxially arranged with the output shaft of the drive component 11, which can be a motor. The rotation of the output shaft of the drive component 11 drives the drive gear 12 to rotate, which in turn drives the gears of the reduction assembly 10 to rotate. Through the meshing between the output gear 101 at the output end of the reduction assembly 10 and the internal gear ring 22 of the rotating component 2, the rotating component 2 is driven to rotate. Figure 6 The location of the output gear 101 at the output end of the reduction assembly 10 is shown.
[0118] In this embodiment, multi-stage gear meshing achieves high torque power transmission, resulting in efficient and compact transmission, reduced space occupation, and facilitates the miniaturization design of electric shavers.
[0119] In some embodiments, the inner wall of the second end of the rotating member 2 is provided with a flange 23, and the protrusion 21 is disposed on the flange 23.
[0120] The second end of the rotating component 2 is the end of the rotating component 2 that is away from the driving assembly 1 in its own circumferential direction, such as... Figure 7 and Figure 8 As shown, the flange 23 extends radially inward from the inner wall of the rotating member 2 to form an annular structure. The protrusion 21 is located on the side of the flange 23 near the second end of the rotating member 2. During the rotation of the rotating member 2, the protrusion 21 can press down on the first mating part 31 to realize the floating movement of the floating member 3 and the cutter head assembly 5.
[0121] The flange 23 can be integrally formed with the protrusion 21 on the rotating part 2, which reduces the difficulty of production and improves the production efficiency. For example, the rotating part 2 can be processed into an integral part by using injection molding or other processes.
[0122] In this embodiment, the flange 23 serves as the base of the protrusion 21, which improves the local structural strength of the rotating part 2, enhances the rigidity and reliability of the protrusion 21, and prevents the protrusion 21 from deforming and shifting. The flange 23 and the protrusion 21 are located at the second end of the rotating part 2, which makes the spatial distribution of each structure in the rotating part 2 more reasonable and prevents the protrusion 21 from being located at the first end of the rotating part 2 and affecting the normal operation of components such as the elastic element 4.
[0123] In some embodiments, the extension length of the protrusion 21 is less than half the circumference of the flange 23. For example Figure 7 As shown, the protrusion 21 extends in a sloping arc shape.
[0124] In this embodiment, the shorter extension length of the protrusion 21 reduces the contact time with the first mating part 31, allowing the floating part 3 and the blade assembly 5 to quickly return to their original position after floating, achieving relatively high-frequency active floating, which is beneficial to improving shaving efficiency. Furthermore, the shorter extension length of the protrusion 21 reduces the mass of the rotating part 2, which helps to reduce start-stop energy consumption, improve drive efficiency, and achieve a lightweight design for the electric shaver. At the same time, the shorter extension length of the protrusion 21 can also prevent the protrusion 21 from interfering with or colliding with other components other than the first mating part 31 when rotating.
[0125] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.
[0126] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.
[0127] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.
Claims
1. An electric shaver, characterized in that, The electric shaver includes: Driver component (1); The rotating part (2) is connected to the driving component (1) and can rotate under the drive of the driving component (1). The interior of the rotating part (2) is hollow, and the inner wall of the rotating part (2) is provided with a protrusion (21). The floating member (3), the elastic member (4), and the cutter head assembly (5) are respectively connected to the elastic member (4) and the cutter head assembly (5). The elastic member (4) is located on the side of the floating member (3) away from the cutter head assembly (5). The floating member (3) is at least partially located inside the rotating member (2) and the floating member (3) is movable relative to the rotating member (2). The outer wall of the floating member (3) is provided with a first mating part (31). The first mating part (31) is used to contact and engage with the protrusion (21) so that the protrusion (21) pushes the first mating part (31) along the axial direction of the rotating member (2).
2. The electric shaver according to claim 1, characterized in that The protrusion (21) extends circumferentially along the rotating member (2), and the thickness of the protrusion (21) gradually increases from both sides to the middle in the direction of extension of the protrusion (21). And / or, the first mating part (31) has guide surfaces on both sides in the width direction, the guide surfaces being used to guide the protrusion (21) to contact or separate from the middle of the first mating part (31).
3. The electric shaver according to claim 2, characterized in that The surface of the protrusion (21) that mates with the first mating part (31) is curved so that the two sides of the protrusion (21) in the extension direction smoothly transition to the middle. And / or, the guide surface is curved, so as to smoothly transition with the middle of the first mating part (31).
4. The electric shaver according to claim 1, characterized in that, The electric shaver also includes a limiting member (9), which includes a connected support part (91) and a limiting part (92). The support part (91) is disposed on one side of the drive assembly (1) and cooperates with the elastic member (4). The inner wall of the floating member (3) is provided with a second mating part (32), which is engaged with the limiting part (92) and can move along the height direction of the limiting part (92).
5. The electric shaver according to claim 4, characterized in that There are multiple first mating parts (31) and multiple second mating parts (32), and the multiple first mating parts (31) and multiple second mating parts (32) are arranged opposite each other in a one-to-one correspondence. The multiple first mating parts (31) and multiple second mating parts (32) are evenly spaced along the circumference of the floating member (3).
6. The electric shaver according to claim 5, characterized in that The cutter head assembly (5) includes a plurality of cutter nets (51), and the number of cutter nets (51) is the same as the number of the first mating parts (31), and the plurality of cutter nets (51) correspond one-to-one with the plurality of the first mating parts (31); Wherein, the first mating part (31) and the corresponding blade net (51) are located on the same side of the first mating part (31) in the radial direction, or the first mating part (31) and the corresponding blade net (51) are located on opposite sides of the first mating part (31) in the radial direction.
7. The electric shaver according to claim 5, characterized in that The first mating part (31) and the second mating part (32) are coaxially arranged.
8. The electric shaver according to claim 7, characterized in that The limiting part (92) has a limiting hole (921) extending along its own height direction. There are multiple limiting holes (921), and the multiple limiting holes (921) are provided in a one-to-one correspondence with the multiple second mating parts (32). The width of the limiting hole (921) is adapted to the width of the second mating part (32).
9. The electric shaver according to any of claims 1 to 8, characterized in that The electric shaver also includes a reduction assembly (10), which is connected to the drive assembly (1) and the rotating component (2) respectively.
10. The electric shaver according to claim 9, characterized in that The drive assembly (1) includes a connected drive member (11) and a drive gear (12). The inner wall of the first end of the rotating member (2) is provided with an internal gear ring (22). The deceleration assembly (10) is a gear reduction mechanism, and the deceleration assembly (10) meshes with the drive gear (12) and the internal gear ring (22) respectively.
11. The electric shaver according to claim 10, characterized in that The inner wall of the second end of the rotating member (2) is provided with a flange (23), and the protrusion (21) is provided on the flange (23).
12. The electric shaver according to claim 11, characterized in that The extension length of the protrusion (21) is less than half the circumference of the flange (23).