The present application claimed priority of Chinese patent application, with Application No. 201911118874.6, filed on Nov. 15, 2019, submitted to CNIPA, the content of which is incorporated herein by reference.
The present application relates to the technical field of shaver, and more particularly to a shaving head assembly, a handle assembly, and an inductive shaver.
The existing electric shaver startup method generally includes a key switch and a toggle switch. The long-term use of the key switch and the toggle switch will cause the metal shrapnel of the internal components of the switch to fatigue and lose elasticity, and the switch will fail, thereby failing to maintain the reliability of the power supply.
An object of embodiments of the present application is to provide a shaving head assembly, a handle assembly, and an inductive shaver, to solve the technical problem that long-term use of the key switch and the toggle switch of the existing electric shaver will affect the reliability.
An embodiment of the present application provides a shaving head assembly, which includes: a head cover; a holder, mounted on the head cover; a cutting unit, mounted on the holder, and the cutting unit comprising cutters mounted on the holder and a rotating cutter head arranged in cutters; and a connecting seat, configured for connecting to a handle assembly, and the connecting seat being electrically connected with the holder;
the holder is served as a first end of a first conductive path, and the first conductive path is configured for receiving a first inductive capacitor between the holder and the ground when the holder approaches or contacts human skin; or
the cutters are served as a first end of a first conductive path, and the first conductive path is configured for receiving a first inductive capacitor between the cutters and the ground when the cutters approach or contact human skin.
Optionally, when the holder is served as the first end of the first conductive path, the holder is configured as a conductor; or an outer surface of the holder is provided with a conductive layer; and
when the cutters are served as the first end of the first conductive path, the cutters are configured as conductors; or an outer surface of the cutters is provided with a conductive layer.
Optionally, the holder is provided with a mounting groove, the cutting unit is arranged in the mounting groove, the holder is mounted with a fixing plate configured for limiting the cutting unit, and the holder is electrically connected to the head cover and serves as a part of the first conductive path.
Optionally, the head cover is provided with a mounting hole, and the holder is swingably arranged in the mounting hole.
Optionally, the shaving head assembly further includes a gear frame aligned with the head cover, a cover plate mounted on one end of the gear frame, and a snap-fit member mounted on the cover plate and engaged with the head cover, the head cover is electrically connected with the snap-fit member and serves as a part of the first conductive path.
Optionally, a middle part of the cover plate is provided a positioning post, the snap-fit member is provided with a positioning hole configured for the positioning post passing through; the snap-fit member is provided with a plurality of positioning buckles circumferentially distributed, and the cover plate is provided with insertion holes configured for the positioning buckles to be inserted.
Optionally, the shaving head assembly further includes a floating pressing plate arranged in the gear frame, and a floating elastic member with two ends respectively abutting against the connecting seat and the floating pressing plate, the snap-fit member and the floating pressing plate are electrically connected through a first conductor, and the floating pressing plate, the floating elastic member, and the connecting seat are electrically connected in sequence and serve as a part of the first conductive path.
Optionally, the floating pressing plate is provided with a connecting post, the first conductor is elastic members, one end of the first conductor is sleeved on the connecting post, and the other end of the first conductor is abutted on the snap-fit member.
Optionally, the connecting seat is provided with a mounting cavity, an inner wall of the connecting seat is provided with a first positioning boss, and the floating pressing plate is provided with a second positioning boss, two ends of the floating elastic member are respectively sleeved on the first positioning boss and the second positioning boss.
An embodiment of the present application provides a handle assembly configured for connecting the shaving head assembly above-mentioned, and the handle assembly includes: a casing; a motor, mounted in the casing and configured for powering the rotating cutter head; and a circuit board assembly, mounted in the casing; the circuit board assembly is electrically connected to a second end of the first conductive path and configured for activating the motor when receiving the first inductive capacitor.
Optionally, the circuit board assembly is provided with a first receiving end electrically connected to the second end of the first conductive path to receive the first inductive capacitor, the circuit board assembly is provided with a first capacitor electrically connected to the first receiving end and configured for determining a reference capacitor, the circuit board assembly comprises a controller configured for activating the motor when the first receiving end obtains the first inductive capacitor.
Optionally, the handle assembly further includes an upper cover mounted at an end port of the casing, the upper cover is provided with an insertion slot configured for the connecting seat to be inserted into, the connecting seat is detachably mounted on the upper cover, and the connecting seat is electrically connected to the upper cover and serves as a part of the first conductive path.
Optionally, a side wall of the insertion slot is provided with a through hole, and the handle assembly further comprises a latch fastener penetrated through the through hole and elastic members configured for pushing the latch fastener, the connecting seat is further provided with a latching position for the latch fastener to be engaged into, and the upper cover, the latch fastener, and the elastic member are electrically connected in sequence and serve as a part of the first conductive path.
Optionally, the handle assembly further includes an inner shell mounted in the casing, a second conductor mounted on the inner shell, and a third conductor mounted on the inner shell and electrically connected to the second conductor, the circuit board assembly is mounted on the inner shell, the second conductor is abutted on one of the elastic members, and the third conductor is electrically connected to the first receiving end.
Optionally, the second conductor is arranged on an upper end of the inner shell; the third conductor is strip-shaped and arranged on an outer surface of the inner shell; the second conductor and the third conductor are electrically connected by screws passing through the inner shell.
Optionally, the handle assembly further includes a wake-up sensor for switching the motor to a standby state.
Optionally, the casing is a conductive casing; the circuit board assembly is provided with a second receiving end configured for receiving a second inductive capacitor between the casing and the ground when the casing approaches or contacts human skin, the circuit board assembly is provided with a second capacitor electrically connected to the second receiving end and configured for determining a reference capacitor; and the controller is further configured for controlling the motor being in a standby state when the second receiving end obtains the second inductive capacitor; and
the wake-up sensor comprises a second conductive path, the casing serves as a first end of the second conductive path, and a second end of the second conductive path is electrically connected to the second receiving end.
Optionally, the handle assembly further includes an inner shell mounted in the casing and a fourth conductor mounted on the inner shell, one end of the fourth conductor is abutted on the casing, and the other end is electrically connected to the second receiving end.
Optionally, the circuit board assembly further includes a touch signal processor, the first receiving end and the second receiving end are both arranged on the touch signal processor, and the controller is electrically connected to the touch signal processor.
An embodiment of the present application provides an inductive shaver, which includes the shaving head assembly above-mentioned and the handle assembly above-mentioned, and the shaving head assembly is connected to the handle assembly.
The above-mentioned one or more technical solutions in the embodiments of the present application have at least one of the following technical effects:
In the shaving head assembly, the connecting base is electrically connected with the holder, and when the connecting base is connected to the handle assembly, the holder or the cutters serves as the first end of the first conductive path. When shaving, the holder or the cutters are arranged approaching the human skin such as the chin and cheeks; because the human skin has a certain electric charge, when the human skin directly contacts or approaches the holder or cutters, the holder or cutters will absorb human skin capacitance formed between the approaching position and the ground, which is the first inductive capacitor, and the signal of the first inductive capacitor is served as the signal to activate the motor.
In the handle assembly, the second end of the first conductive path is connected to the circuit board assembly, and when the circuit board assembly receives the first inductive capacitor, the motor is activated to drive the rotating cutter head in the cutting unit to rotate.
The inductive shaver includes the above-mentioned shaving head assembly and the above-mentioned handle assembly. The shaver is configured with the first conductive path, the first end of the first conductive path is the holder or the cutters in the shaving head assembly, and the second end is connected to the circuit board assembly in the handle assembly. When shaving, the holder or the cutters are arranged approaching the human skin such as the chin and cheeks; because the human skin has a certain electric charge, when the human skin directly contacts or approaches the holder or cutters, the holder or cutters will absorb human skin capacitance formed between the approaching position and the ground, which is the first inductive capacitor. When the circuit board assembly receives the first inductive capacitor, the motor is activated to drive the rotating cutter head in the cutting unit to rotate, so as to achieve the purpose of inductive shaving and ensure long-term reliable use of the shaver.
In order to explain the embodiments of the present application more clearly, a brief introduction regarding the accompanying drawings that need to be used for describing the embodiments of the present application or the prior art is given below; it is obvious that the accompanying drawings described as follows are only some embodiments of the present application, for those skilled in the art, other drawings can also be obtained according to the current drawings on the premise of paying no creative labor.
In order to make the purpose, the technical solution and the advantages of the present application be clearer and more understandable, the present application will be further described in detail below with reference to accompanying figures and embodiments. It should be understood that the specific embodiments described herein are merely intended to illustrate but not to limit the present application.
In the description of the embodiments of the present application, it needs to be understood that, directions or location relationships indicated by terms such as “length”, “width”, “up”, “down”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, and so on are the directions or location relationships shown in the accompanying figures, which are only intended to describe the present application conveniently and simplify the description, but not to indicate or imply that an indicated device or component must have specific locations or be constructed and manipulated according to specific locations; therefore, these terms shouldn't be considered as any limitation to the present application.
In addition, terms “the first” and “the second” are only used in describe purposes, and should not be considered as indicating or implying any relative importance, or impliedly indicating the number of indicated technical features. As such, technical feature(s) restricted by “the first” or “the second” can explicitly or impliedly comprise one or more such technical feature(s). In the description of the present application, “a plurality of” means two or more, unless there is additional explicit and specific limitation.
In the present application, unless there is additional explicit stipulation and limitation, terms such as “mount”, “connect with each other”, “connect”, “fix”, and so on should be generalizedly interpreted, for example, “connect” can be interpreted as being fixedly connected, detachably connected, or connected integrally; “connect” can also be interpreted as being mechanically connected or electrically connected; “connect” can be further interpreted as being directly connected or indirectly connected through intermediary, or being internal communication between two components or an interaction relationship between the two components. For the one of ordinary skill in the art, the specific meanings of the aforementioned terms in the present application can be interpreted according to specific conditions.
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Compared with the prior art, the inductive shaver provided by the present application, referring to
Specifically, when no human skin 1 approaches the holder 120 (or cutters 131), there is no first inductive capacitor Cf1 between the human skin 1 and the ground; when the human skin 1 approaches the holder 120 (or the cutters 131), a first inductive capacitor Cf1 is formed between the holder 120 (or the cutters 131) and the ground. Before and after the human skin 1 approaches the holder 120 (or the cutters 131), the circuit board assembly 210 receives the change signal of the first inductive capacitor Cf1, and at this time, the motor 202 is activated.
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In the shaving head assembly 100, the connecting seat 170 is electrically connected with the holder 120. When the connecting seat 170 is connected to the handle assembly 200, the holder 120 (or the cutters 131) serves as the first end of the first conductive path 300. When shaving, the holder 120 (or the cutters 131) is arranged approaching the human skin 1 such as the chin and cheeks; because the human skin 1 has a certain electric charge, when the human skin 1 directly contacts or approaches the holder 120 (or the cutters 131), the holder 120 (or the cutters 131) will absorb human skin capacitance formed between the approaching position and the ground, which is the first inductive capacitor Cf1, and the signal of the first inductive capacitor Cf1 is served as the signal to activate the motor 202.
In another embodiment of the present application, when the holder 120 or the cutters 131 is (are) served as the first end of the first conductive path 300, the holder 120 is a conductor. It is easy to process the holder 120 by directly using the conductive material. Alternatively, the outer surface of the holder 120 is provided with a conductive layer. By arranging the holder 120 formed by the conductive layer on the outer surface of the plastic member, the weight will be lighter. Similarly, when the cutters 131 are served as the first end of the first conductive path 300, the cutters 131 are conductors. Alternatively, the outer surfaces of the cutters 131 are provided with a conductive layer. Both fabrication methods can be served as the first end of the first conductive path 300, and the holder 120 (or the cutters 131) will absorb the human skin capacitance formed between it and the ground from a position approaching the human skin 1.
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In another embodiment of the present application, the head cover 110 is provided with a mounting hole 111, and the holder 120 is swingably disposed in the mounting hole 111. The holder 120 is swingably arranged on the head cover 110, so that the angle of the holder 120 can be automatically adjusted to fit the human skin 1 during shaving, which provides comfort and better shaving experience. Specifically, the holder 120 is assembled on the head cover 110 by swinging a positioning shaft 112 on the head cover 110, and the positioning shaft 112 is inserted into the connecting hole 122 of the holder 120 to realize the movable mounting of the holder 120 on the head cover 110.
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In another embodiment of the present application, the shaving head assembly 100 further includes a floating pressing plate 180 disposed in the gear frame 140, and a floating elastic member 190 with two ends respectively abutting on the connecting seat 170 and the floating pressing plate 180. The configuration of the connecting seat 170, the floating pressing plate 180 and the floating elastic member 190 can make the cutting unit 130 move in the axial direction, thereby improving the shaving experience of the user. The snap-fit member 150 and the floating pressing plate 180 are electrically connected through the first conductor 101. The floating pressing plate 180, the floating elastic member 190, and the connecting seat 170 are electrically connected in sequence and serve as a part of the first conductive path 300. The snap-fit member 150, the first conductor 101, the floating pressing plate 180, the floating elastic member 190, and the connecting seat 170 are electrically connected in sequence, and the human skin capacitance between the holder 120 (or the cutters 131) and the ground is transmitted to the circuit board assembly 210 in the handle assembly 200. Specifically, the outer edge of the floating pressing plate 180 is provided with a limiting structure 181, the floating pressing plates 180 are fixed together by the positioning grooves 141 on the gear frame 140, and the limiting structure 181 can be engaged in the positioning groove 141. A trim ring pressing plate 102 is assembled on the gear frame 140 by the positioning fit of the connecting seat 170, and then being assembled together with floating elastic member 190 and the floating pressing plate 180 by the connecting seat 170.
In another embodiment of the present application, the floating pressing plate 180 is provided with a connecting post 182, the first conductor 101 is elastic members, one end of the first conductor 101 is sleeved on the connecting post 182, and the other end of the first conductor 101 is abutted on the connecting post 182. By using the elastic first conductor 101, the reliable electrical connection between the floating pressing plate 180 and the snap-fit member 150 can be ensured. The first conductor 101 is positioned and assembled on the floating pressing plate 180 by using the connecting post 182, so that the connection between the first conductor 101 and the floating pressing plate 180 is reliable.
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In the handle assembly 200, the circuit board assembly 210 is electrically connected to the second end of the first conductive path 300. When the circuit board assembly 210 receives the first inductive capacitor Cf1, the motor 202 is activated to drive the rotating cutter head 132 in the cutting unit 130 to rotate.
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When the cutters 131 are served as the first end of the first conductive path 300, the first conductive path 300 of the inductive shaver passes through the cutters 131, the holder 120, the head cover 110, the snap-fit member 150, the first conductor 101, the floating pressing plate 180, the floating elastic member 190, the connecting seat 170, the upper cover 220, the latch fastener 230, the elastic member 231, the second conductor 204, the screws 206, and the third conductor 205 and finally transmitted to the first receiving end 211a of circuit board assembly 210.
Specifically, the surfaces of the above parts are treated with a conductive coating to achieve a conductive state, and are assembled into a complete first conductive path 300 through structural cooperation between the parts.
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Specifically, when there is no human skin 1′ (hand) approaching the casing 201, there is no second inductive capacitor Cf2 between the human skin 1′ and the ground, and only the reference capacitor Cp2 on the circuit board assembly 210; when there is human skin 1′ approaching the casing 201, the second inductive capacitor Cf2 is formed between the casing 201 and the ground. Since Cf2 and Cp2 are connected in parallel, before and after the human skin 1′ approaches the casing 201, the total capacitance produces a capacitance change after entering the second receiving end 211b. That is, the second receiving end 211b obtains the change signal of the second sensing capacitor Cf2, and at this time, the controller 213 controls the motor 202 in a standby state.
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The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the principles of the present application shall be included within the protection scope of the present application.
Number | Date | Country | Kind |
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201911118874.6 | Nov 2019 | CN | national |
Filing Document | Filing Date | Country | Kind |
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PCT/CN2020/128545 | 11/13/2020 | WO |