CN219832473U - Hand-held personal care appliance - Google Patents

Abstract

The embodiment of the utility model discloses a handheld personal care appliance, wherein the handheld personal care appliance comprises a metal shell, a sensor and a controller, wherein the metal shell is partially thinned to form a pressing area; the sensor is arranged in the metal shell and corresponds to the pressing area, and the sensor is used for sending a transmission signal when the pressing area is pressed, deformed and preset to displace; the controller is arranged in the metal shell and is electrically connected with the sensor, so as to be used for receiving the transmission signal and controlling the on-off of the circuit and/or the current. The handheld personal care appliance thoroughly solves the problems that gaps between the traditional mechanical buttons and the metal shell are easy to water and dirty, and can effectively avoid the trouble caused by mistaken touch of a machine to a user.

Description

Hand-held personal care appliance

Technical Field

The present utility model relates to the field of personal care appliances, and in particular to a handheld personal care appliance.

Background

With the increasing level of living, more and more personal care small household appliances are going into people's daily lives. Common personal care appliances include shavers, electric toothbrushes, oral irrigators, beauty instruments, depilatories, hair cutters, hair dryers, and the like. Such personal care appliances control the switching of the machine, gear adjustment, etc. by operating the switch. Currently, there are two general types of operation switches, one of which is a mechanical button, and the switch and gear adjustment of the machine are achieved by a user pressing the mechanical button by providing a through hole in the housing and installing the mechanical button at the through hole of the housing. The mode can have the problem of complex assembly, and the gap between the mechanical button and the shell is easy to enter water and collect dirt, so that the switch is easy to malfunction. The other type is a touch induction type switch, a touch induction piece connected with a control board is stuck in the shell, and the touch induction piece is triggered by touching the shell, so that the switch and gear adjustment of the whole machine are realized. This approach may have a false touch, which may cause great trouble to the user.

The foregoing is merely provided to facilitate an understanding of the principles of the utility model and is not admitted to be prior art.

Disclosure of Invention

In view of the above, the present utility model provides a handheld personal care appliance, which aims to solve the technical problems that an operation switch of the handheld personal care appliance is easy to be failed in water inlet and started by false touch.

To achieve the above objects, the present utility model provides a handheld personal care appliance comprising a metal housing, a sensor, and a controller;

the metal shell part is thinned and arranged to form a pressing area;

the sensor is arranged in the metal shell and corresponds to the pressing area, and the sensor is used for sending a transmission signal when the pressing area is pressed, deformed and preset to displace;

the controller is arranged in the metal shell and is electrically connected with the sensor, so as to be used for receiving the transmission signal and controlling the on-off of the circuit and/or the current.

In an embodiment, an outer wall portion of the metal housing is recessed to form the pressing region.

In an embodiment, the sensor includes a sensing unit, the pressing region includes a central region located directly above the sensing unit, and the central region has a thickness greater than or equal to 0.2mm and less than or equal to 0.4mm.

In an embodiment, the pressing area further includes a transition area surrounding the periphery of the central area, and the thickness of the transition area is gradually increased from the center of the central area to the outside.

In an embodiment, the curvature of the transition region is greater than the curvature of the central region.

In one embodiment, the central region has an equivalent diameter greater than or equal to 7mm and less than or equal to 9mm.

In one embodiment, the transition region has an equivalent outer diameter greater than or equal to 9.5mm and less than or equal to 11mm.

In one embodiment, the central region is circularly arranged and the transition region is circularly arranged.

In an embodiment, the metal shell further comprises a thinning area, and the height of the outer wall surface of the thinning area is lower than the height of the outer wall surface of the rest part of the metal shell; the pressing area is arranged in the thinning area.

In an embodiment, the sensor is a pressure sensor and/or a displacement sensor.

In one embodiment, the metal housing includes a head portion and a handle portion connected to each other; the sensor and the controller are mounted on the handle part; the handheld personal care appliance further includes a battery mounted within the handle portion, the battery being electrically connected to the controller, the pressing area being located at a position of the handle portion between the battery and the head portion.

In one embodiment, the handle portion is provided in a strip shape, and the head portion is connected to one end of the handle portion; the pressing area is arranged at a position of the handle part adjacent to the head part and is arranged side by side with the battery in the length direction of the handle part; the handheld personal care appliance further includes a vibration motor electrically connected to the controller, the vibration motor mounted within the handle portion and located between the battery and the head.

In an embodiment, the handheld personal care appliance is an electric shaver, an electric toothbrush, an oral irrigator, a cosmetic instrument, an epilator, a hair clipper, or a hair dryer.

According to the handheld personal care appliance, the metal shell is thinned to form the pressing area, the sensor is arranged in the metal shell and corresponds to the pressing area, the sensor is used for sending a transmission signal when the pressing area is pressed and deformed to be preset, and the controller is arranged in the metal shell and is used for receiving the transmission signal and controlling the on-off state and/or the current of the circuit. Therefore, compared with the button structure that the through hole is formed in the shell and the mechanical button is arranged in the through hole, the utility model fully utilizes the elasticity of the metal shell, directly integrally forms the button area on the metal shell to replace the traditional mechanical button, can realize the complete consistency of the metal shell, completely eliminates the gap between the traditional mechanical button and the shell, and thoroughly solves the problems that the gap between the traditional mechanical button and the metal shell is easy to water and dirty. Meanwhile, the trigger sensor is realized through deformation of the thinned pressing area on the metal shell, compared with a mechanical button using a spring and other structures, the integral mounting process can be simplified, the service life of the switch button can be effectively prolonged, and the quality of products and the use experience of users are improved finally. Compared with a touch induction type switch, the touch induction type switch can effectively avoid the trouble caused by the fact that a user is started by mistaken touch.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 illustrates a schematic construction of one embodiment of a handheld personal care appliance of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an angled cross-sectional view of the handheld personal care appliance of FIG. 1;

FIG. 4 is a schematic view of the partial enlarged view at B in FIG. 3 rotated 90 degrees clockwise;

FIG. 5 is another angular cross-sectional view of the handheld personal care appliance of FIG. 1;

fig. 6 is a partial enlarged view at C in fig. 5.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name	Reference numerals	Name of the name
						100	Metal shell	120	Thinned region	210	Sensing unit
110	Pressing area	130	Head part	300	Controller for controlling a power supply
						111	Central region	140	Handle portion	400	Battery cell
112	Transition region	200	Sensor for detecting a position of a body	500	Vibration motor

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is involved in the embodiment of the present utility model, the directional indication is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B meet at the same time.

The utility model provides a handheld personal care appliance.

In an embodiment of the present utility model, referring to fig. 1 to 4, the handheld personal care appliance includes a metal housing 100, a sensor 200, and a controller 300. The metal shell 100 is partially thinned to form a pressing region 110. The sensor 200 is installed in the metal casing 100 and is disposed corresponding to the pressing area 110, and the sensor 200 is configured to send a transmission signal when the pressing area 110 is deformed by a preset displacement. The controller 300 is installed in the metal housing 100, and the controller 300 is electrically connected with the sensor 200 for receiving the transmission signal and controlling the on-off of the circuit and/or the current magnitude.

In this embodiment, the handheld personal care appliance may be specifically an electric shaver, a hair clipper, an electric toothbrush, an oral cavity flusher, a depilatory device, a face washer, a massager, a hairdryer, or a small personal care appliance such as a hair dryer, which is not specifically described herein. By using the metal shell 100 for the handheld personal care appliance, the structure strength is high, the handheld personal care appliance is not easy to damage, the texture and the hand feeling of the handheld personal care appliance can be improved, and the product quality is improved. The metal casing 100 may be made of zinc alloy, copper alloy, titanium alloy, or other materials with better elasticity.

The metal shell 100 is partially thinned to form the pressing region 110, and then the outer wall and/or the inner wall of the metal shell 100 may be thinned to form the pressing region 110. By partially thinning the metal case 100 to form the pressing region 110, the thickness of the pressing region 110 is thinner than that of other regions of the metal case 100, so that the pressing region 110 is more easily deformed. The user can manually press the pressing area 110 to enable the pressing area 110 to be concavely deformed inwards, so as to trigger the sensor 200, and realize the switch or gear adjustment of the handheld personal care appliance. That is, the push area 110 on the metal case 100 of the present utility model can realize the function of a button. So, make full use of metal casing 100's elasticity realizes the button function for button and metal casing 100 integrated into one piece need not to set up the extra embedded button of through-hole on metal casing 100, can simplify holistic installation technique, and eliminated the clearance between traditional mechanical button and the metal casing 100 through-hole, guaranteed whole metal casing 100's integrality, realized metal casing 100's button seamless, thoroughly solved the gap between traditional mechanical button and the metal casing 100 and easily intaked and the dirty problem of hiding, effectively promoted product quality and shift knob's life.

The sensor 200 may be specifically a pressure sensor 200, a laser sensor 200, an inductance displacement sensor 200, or the like, and may be capable of sending a transmission signal when detecting that the pressing area 110 is deformed by a preset amount, and the specific type of the sensor 200 is not limited herein. It will be appreciated that when the pressing area 110 is deformed by a preset displacement, the detection threshold of the sensor 200 is reached, at which time the sensor 200 sends a transmission signal. The accuracy and detection threshold of the sensor 200 may be adjusted according to the material of the metal case 100 and the thickness of the pressing area 110, and are not particularly limited herein.

It will be appreciated that after a single pressing of the pressing area 110 by the user, the pressing area 110 is concavely deformed, and only one trigger signal is provided to the sensor 200. When the pressing area 110 is elastically restored, the transmission of the transmission signal of the sensor 200 is not affected. Thus, after the controller 300 receives the transmission signal of the sensor 200, the controller 300 can control the opening, closing or gear number adjustment of the whole machine according to the design of the internal circuit of the controller 300. The handheld personal care appliance also includes a battery 400, internal electrical components, and the like. The controller 300 specifically includes a circuit board that is electrically connected to the sensor 200. The circuit board may be used to receive the transmitted signals from the sensor 200 and control the on-off and/or current levels of the internal circuitry of the handheld personal care appliance. The switch of the whole machine can be realized by controlling the on-off of the internal circuit of the handheld personal care appliance, and the number adjustment of the handheld personal care appliance can be realized by controlling the internal current of the handheld personal care appliance.

The handheld personal care appliance of the utility model is provided with a sensor 200 installed in the metal shell 100 and arranged corresponding to the pressing area 110 by partially thinning the metal shell 100 to form the pressing area 110, wherein the sensor 200 is used for sending a transmission signal when the pressing area 110 is pressed and deformed to be preset, and a controller 300 is installed in the metal shell 100 and used for receiving the transmission signal and controlling the on-off of a circuit and/or the current magnitude. Therefore, compared with the button structure that the through hole is formed in the shell and the mechanical button is arranged in the through hole, the utility model fully utilizes the elasticity of the metal shell 100, directly integrally forms the button area on the metal shell 100 to replace the traditional mechanical button, can realize the complete consistency of the metal shell 100, completely eliminates the gap between the traditional mechanical button and the shell, and thoroughly solves the problems that the gap between the traditional mechanical button and the metal shell 100 is easy to water and dirty. Meanwhile, the trigger sensor 200 is realized through the deformation of the thinned pressing area 110 on the metal shell 100, compared with a mechanical button using a spring and other structures, the integral installation process can be simplified, the service life of the switch button can be effectively prolonged, and the product quality and the user experience are finally improved. Compared with a touch induction type switch, the touch induction type switch can effectively avoid the trouble caused by the fact that a user is started by mistaken touch.

In one embodiment, as shown in fig. 3 to 6, the outer wall portion of the metal case 100 is recessed to form the pressing region 110. By recessing the outer wall portion of the metal case 100 to form the pressing region 110, the outer wall of the pressing region 110 is lower than the outer wall of the remaining region of the metal case 100. In this way, the concave pressing area 110 can guide and position the pressing of the user, so that the user can precisely press the pressing area 110 to operate the whole machine, and no different color coatings or other patterns are required to be additionally arranged to mark the pressing area 110. The outer wall of the pressing area 110 may be a concave arc surface or a convex arc surface.

In an embodiment, referring to fig. 4 and 6, the sensor 200 includes a sensing unit 210, the pressing area 110 includes a central area 111 directly above the sensing unit 210, and the thickness of the central area 111 is greater than or equal to 0.2mm and less than or equal to 0.4mm.

In this embodiment, the thickness of the central region 111 may specifically be 0.2mm, 0.25mm, 0.28mm, 0.3mm, 0.33mm, 0.35mm, 0.37mm, 0.4mm, or the like. If the thickness of the central region 111 is less than 0.2mm, so that the thickness of the central region 111 is too thin, the strength of the central region 111 of the pressing region 110 is too low, breakage or the like is easily generated under a long-term pressing operation, and the deformation degree of the too thin central region 111 is large, and thus, the elastic recovery is difficult, and the switch failure is easily caused. If the thickness of the central region 111 is greater than 0.4mm, so that the thickness of the central region 111 is too thick, so that the pressing force required for the central region 111 is greater under the same deformation amount, the pressing operation difficulty of the user may be increased. By making the thickness of the central region 111 greater than or equal to 0.2mm and less than or equal to 0.4mm, the structural strength of the central region 111 can be effectively ensured, the breakage of the pressing region 110 caused by long-term pressing operation is avoided, and the pressing operation of a user is more convenient and labor-saving. It will be appreciated that the central region 111 is located substantially in the center of the entire compression region 110. The sensing unit 210 of the sensor 200 is used to receive a trigger signal of the pressing area 110. The central area 111 is located right above the sensing unit 210, and the thickness of the central area 111 is greater than or equal to 0.2mm and less than or equal to 0.4mm, so that the sensing unit 210 of the sensor 200 can quickly and accurately detect the compressive deformation of the central area 111, and further the sensitivity and accuracy of the sensor 200 can be improved.

Further, as shown in fig. 3 to 6, the pressing region 110 further includes a transition region 112 surrounding the periphery of the central region 111, and the thickness of the transition region 112 is gradually increased from the center of the central region 111 to the outside.

In the present embodiment, the central region 111 may have a circular shape, an elliptical shape, a racetrack shape, a rectangular shape, a special shape, or the like, and is not particularly limited herein. The transition region 112 surrounds the periphery of the central region 111, and the transition region 112 may be a circular ring, a square ring, or the like. So that the thickness of the transition region 112 is gradually increased from the center of the center region 111 to the outside, that is, the thickness of the junction of the center region 111 and the metal shell 100 located outside the pressing region 110 is uniformly varied, so that the junction strength of the center region 111 and the metal shell 100 located at other positions outside the pressing region 110 can be ensured. Meanwhile, the outer wall of the central area 111 and the outer wall of the metal shell 100 located outside the pressing area 110 are smoothly transited through the transition area 112, so that the pressing hand feeling of the user at the pressing area 110 can be improved.

Specifically, referring to fig. 5 and 6, the curvature of the transition region 112 is greater than the curvature of the central region 111. Such that the curvature of the transition region 112 is greater than the curvature of the central region 111, the central region 111 is closer to a plane. In this way, the user applies less force to deform the central region 111 to a preset displacement, so that the pressing operation of the user is more labor-saving. And when the user applies force to the central region 111, the pulling force of the central region 111 to the transition region 112 can be reduced, so that the structural strength of the whole pressing region 110 can be ensured, and the service life of the pressing region 110 of the metal shell 100 can be prolonged.

In one embodiment, the equivalent diameter of the central region 111 is greater than or equal to 7mm and less than or equal to 9mm. The equivalent diameter of the central region 111 may specifically be 7mm, 7.5mm, 7.7mm, 8mm, 8.3mm, 8.5mm, 8.8mm, 9mm, etc.

It is understood that when the central region 111 is circular, the equivalent diameter of the central region 111 is the diameter of the circular central region 111. When the central region 111 is non-circular, such as rectangular, oval, or irregular, the equivalent diameter of the central region 111 refers to the diameter of the inscribed circle of the non-circular central region 111.

When the equivalent diameter of the central area 111 is smaller than 7mm, the area of the central area 111 is too small to be fit for the fingers of the user to press, so that the pressing operation difficulty of the user is increased. When the equivalent diameter of the central region 111 is greater than 9mm, making the area of the central region 111 excessively large may reduce the structural strength of the entire metal case 100 and may affect the accuracy of the switch button. By making the equivalent diameter of the central region 111 greater than or equal to 7mm and less than or equal to 9mm, the structural strength of the metal housing 100 is ensured while better adapting to the thumb size of the user, improving the convenience of the pressing operation of the user.

In connection with the pressing region 110, the above-described embodiment of the transition region 112 surrounding the periphery of the central region 111 further has an equivalent outer diameter of the transition region 112 of greater than or equal to 9.5mm and less than or equal to 11mm. The equivalent outer diameter of the transition region 112 may specifically be 9.5mm, 9.8mm, 10mm, 10.2mm, 10.5mm, 10.7mm, 11mm, etc.

It is understood that when the transition region 112 is circular, the equivalent outer diameter of the transition region 112 is the outer diameter of the annular transition region 112. When the transition region 112 is non-circular, the equivalent outer diameter of the transition region 112 refers to the diameter of the inscribed circle of the outer contour of the non-circular transition region 112.

When the equivalent outer diameter of the transition region 112 is smaller than 9.5mm, the width of the annular transition region 112 is too narrow, the gradually increased thickness change of the transition region 112 from inside to outside is too large, when the central region 111 is pressed, the deformation difficulty of the transition region 112 is large, the pressed deformation degree of the central region 111 is affected, and the pressing operation difficulty of the pressing region 110 is increased. When the equivalent outer diameter of the transition region 112 is greater than 11mm, making the width of the annular transition region 112 too large reduces the structural strength of the entire metal housing 100 and affects the accuracy of the switch button. By making the equivalent outer diameter of the transition region 112 greater than or equal to 9.5mm and less than or equal to 11mm, the structural strength of the entire metal housing 100 is ensured while reducing the pressing force, ensuring the pressing accuracy, and improving the user's pressing operation comfort.

In one embodiment, as shown in fig. 1-6, the central region 111 is circularly configured and the transition region 112 is circularly configured. Through making central region 111 be circular setting, transition region 112 is the ring shape setting, then whole press region 110 more adaptation human thumb, that is, the design of this press region 110 more accords with ergonomics, and then can effectively promote user's press operation convenience.

In an embodiment, referring to fig. 1 to 6 again, the metal shell 100 further includes a thinned region 120, and the height of the outer wall surface of the thinned region 120 is lower than the height of the outer wall surface of the rest of the metal shell 100; the pressing region 110 is provided in the thinning region 120.

In the present embodiment, the thickness of the thinned region 120 is smaller than the thickness of the metal shell 100 located outside the thinned region 120. The thinned region 120 may be circular, oval, racetrack, rectangular, oblong, etc. By providing the thinned region 120 on the metal shell 100, the mounting region is provided within the thinned region 120. The pressing area 110 realizes secondary thinning through the thinning area 120, on the one hand, the thinning area 120 is easier to elastically deform, and the pressing operation difficulty of the pressing area 110 can be improved; on the other hand, the transition between the pressing area 110 and the rest area of the metal periphery is more gentle, so that the structural strength of the pressing area 110 is ensured.

In an embodiment, the sensor 200 is a pressure sensor 200 and/or a displacement sensor 200. Specifically, the sensor 200 may be a piezoresistive pressure sensor 200. The displacement sensor 200 may be a laser sensor 200. When the sensor 200 is a piezoresistive pressure sensor 200, the piezoresistive pressure sensor 200 can be attached to the inner wall surface of the metal casing 100. The sensing unit 210 of the piezoresistive pressure sensor 200 is triggered when the pressing area 110 is compressively deformed by a preset amount, and then the piezoresistive pressure sensor 200 sends a transmission signal to the controller 300. When the sensor 200 is a laser displacement sensor 200, the laser is fixed on a circuit board, the circuit board is spaced from the inner wall of the metal housing 100, and the laser displacement sensor 200 emits a transmission signal when the pressing area 110 is deformed under pressure to preset displacement. By making the sensor 200 a piezoresistive pressure sensor 200 or a laser sensor 200, it is more reliable for the sensor 200 to receive a trigger signal of the pressing deformation of the pressing area 110.

In one embodiment, as shown in fig. 1, 3 and 5, the metal housing 100 includes a head portion 130 and a handle portion 140 that are connected to each other; the sensor 200 and the controller 300 are mounted on the handle 140; the handheld personal care appliance further includes a battery 400 mounted within the handle portion 140, the battery 400 being electrically connected to the controller 300, the pressing area 110 being provided at a location of the handle portion 140 between the battery 400 and the head portion 130.

In this embodiment, the functional components of the handheld personal care appliance may be mounted to the head portion 130 of the metal shell 100, and the handle portion 140 is for the user to hold. The battery 400 is used to provide power to the internal electrical components of the controller 300 and the handheld personal care appliance. It will be appreciated that, if the metal casing 100 is made of a conductive material, the metal casing 100 contacts the battery 400 and the control board, a leakage phenomenon may occur, and more serious, a circuit breakdown and a short circuit may occur. The pressing area 110 is disposed on the handle 140 and between the battery 400 and the head 130, so that the pressing area 110 and the battery 400 are staggered in the thickness direction of the handle 140, thereby avoiding the false touch between the pressing area 110 and the battery 400 and further ensuring the use safety of the whole machine. In addition, the pressing area 110 is disposed at a position between the battery 400 and the head 130 of the handle 140, and when the user grasps the handle 140, the thumb just corresponds to the pressing area 110, so that the pressing operation of the user is more convenient.

Further, referring to fig. 4 and 6, the handle 140 is provided in a long shape, and the head 130 is connected to one end of the handle 140; the pressing area 110 is arranged at a position of the handle part 140 adjacent to the head part 130 and is arranged side by side with the battery 400 in the length direction of the handle part 140; the handheld personal care appliance further includes a vibration motor 500 electrically connected to the controller 300, the vibration motor 500 being mounted within the handle portion 140 and between the battery 400 and the head portion 130.

In this embodiment, the handle portion 140 is arranged in a strip shape, so that the battery 400 can be arranged along the length direction of the handle portion 140, and the capacity of the battery 400 can be increased, and the cruising ability of the product can be improved. The vibration motor 500 can be used for vibrating when the pressing area 110 is pressed and deformed to preset displacement, so that the pressing operation of a user can be reminded in place, and the product use reliability and the user use experience sense are improved. By positioning the vibration motor 500 between the battery 400 and the head 130, the vibration motor 500 is installed by making full use of the space between the battery 400 and the head 130 in the handle, and the thickness of the handle portion 140 can be effectively reduced. In addition, the pressing area 110 and the battery 400 are disposed side by side in the longitudinal direction of the handle portion 140, and the vibration motor 500 is located between the battery 400 and the head portion 130, the vibration motor 500 is located substantially below the pressing area 110, so that the vibration motor 500 is closer to the sensor, thereby improving the sensitivity of the vibration motor 500.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (13)

1. A handheld personal care appliance comprising:

a metal housing, the metal housing portion being thinned to form a pressing region;

the sensor is arranged in the metal shell and corresponds to the pressing area, and the sensor is used for sending a transmission signal when the pressing area is pressed, deformed and preset to displace; and

and the controller is arranged in the metal shell, and is electrically connected with the sensor and used for receiving the transmission signal and controlling the on-off of the circuit and/or the current.

2. The handheld personal care appliance of claim 1, wherein an outer wall portion of said metal housing is recessed to form said pressing area.

3. The handheld personal care appliance of claim 2, wherein the sensor comprises a sensing unit and the pressing area comprises a central area directly above the sensing unit, the central area having a thickness greater than or equal to 0.2mm and less than or equal to 0.4mm.

4. The handheld personal care appliance of claim 3, wherein said pressing area further comprises a transition area surrounding a periphery of said central area, said transition area having a thickness that increases gradually from a center of said central area outwardly.

5. The handheld personal care appliance of claim 4, wherein the curvature of the transition region is greater than the curvature of the central region.

6. The handheld personal care appliance of claim 4, wherein the central region has an equivalent diameter of greater than or equal to 7mm and less than or equal to 9mm.

7. The handheld personal care appliance of claim 6, wherein the transition region has an equivalent outer diameter greater than or equal to 9.5mm and less than or equal to 11mm.

8. The handheld personal care appliance of claim 7, wherein said central region is circularly disposed and said transition region is circularly disposed.

9. The handheld personal care appliance of claim 1, wherein said metal shell further comprises a thinned region, said thinned region having an outer wall surface that is lower in height than an outer wall surface of a remainder of said metal shell; the pressing area is arranged in the thinning area.

10. The handheld personal care appliance of any one of claims 1 to 9, wherein said sensor is a pressure sensor and/or a displacement sensor.

11. The handheld personal care appliance of any one of claims 1 to 9, wherein said metal housing comprises a head portion and a handle portion connected to each other; the sensor and the controller are mounted on the handle part; the handheld personal care appliance further includes a battery mounted within the handle portion, the battery being electrically connected to the controller, the pressing area being located at a position of the handle portion between the battery and the head portion.

12. The handheld personal care appliance of claim 11, wherein said handle portion is provided in an elongated configuration, said head portion being connected to one end of said handle portion; the pressing area is arranged at a position of the handle part adjacent to the head part and is arranged side by side with the battery in the length direction of the handle part; the handheld personal care appliance further includes a vibration motor electrically connected to the controller, the vibration motor mounted within the handle portion and located between the battery and the head.

13. The handheld personal care appliance of claim 1, wherein the handheld personal care appliance is an electric shaver, an electric toothbrush, an oral irrigator, a cosmetic instrument, an epilator, a hair clipper, or a hair dryer.