Personal care device with sliding screen touch inductive switch

Abstract

A personal care device of a sliding screen touch inductive switch is provided with a holding part and an action part, the surface of the holding part is provided with a touch area, the personal care device comprises a main control board, the main control board is provided with N metal electrodes, the metal electrodes are arranged at intervals in the linear direction and located in the projection area of the touch area, and the N is larger than or equal to 1 and smaller than or equal to 1. A human hand sequentially passes through the metal electrodes located on a moving path along the moving path of the touch area, and a trigger signal is formed; and the control chip U2 is used for outputting a control signal for controlling the processing action of the action part after receiving the trigger signal. A plurality of metal electrodes are arranged, the adjacent metal electrodes are triggered in sequence by sliding a finger to form a control signal, the operation mode is unique, and meanwhile, the duration time of a touch action is remarkably different from that of a generally set touch action capable of responsively executing a corresponding function. Therefore, false touch actions can be effectively screened out by setting the duration of touch.

Description

Technical Field

[0001] This utility model relates to personal care devices, specifically to a personal care device with a sliding touch-sensitive switch. Background Technology

[0002] Personal care devices, such as razors, hair clippers, nose hair trimmers, hair dryers, dental care appliances such as electric or manual toothbrushes, interdental cleaners or gum massagers, or skin care devices such as massagers or vibrators, now come in a wide variety of control methods, from the initial physical buttons to today's buttonless controls such as voice control, touch, vibration, and electrostatic induction. Control methods are constantly being updated to meet consumers' pursuit of technology. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a personal care device with a sliding touch sensor switch.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A personal care device with a sliding touch-sensitive switch includes a grip portion for holding by hand and an action portion for handling the human body. The surface of the grip portion is provided with a touch area, and it includes a main control board disposed inside the grip portion. The main control board has:

[0006] There are N metal electrodes, where N is greater than or equal to 2, and each metal electrode is arranged at intervals along a straight line. Each metal electrode is located within the projected area of ​​the touch area, and the human hand passes through the metal electrodes located on the movement path along the touch area in sequence, thus forming a trigger signal.

[0007] After receiving the trigger signal, the control chip U2 outputs a control signal to control the processing action of the action unit.

[0008] One end of the metal electrode is electrically connected to the main control board, and the other end is in contact with the inner wall of the grip portion.

[0009] The metal electrode is a spring.

[0010] The main control board is also equipped with a detection chip U3, and the metal electrodes are electrically connected to different detection terminals of the detection chip U3.

[0011] The detection chip U3 outputs a trigger signal based on the change in capacitance generated by the sequentially touched metal electrodes.

[0012] There are three metal electrodes, and the generation of the trigger signal depends on the movement path covering any two adjacent metal electrodes.

[0013] An indicator area is provided on either side of the touch area.

[0014] The indicator area is provided with several indicator light groups, and each indicator light group is arranged sequentially along the arrangement direction of the metal electrodes.

[0015] The indicator light group includes two LEDs of different colors connected in parallel.

[0016] The beneficial effects of this utility model are as follows: Multiple metal electrodes are set up, and adjacent metal electrodes are triggered sequentially by sliding the finger to form a control signal. Its operation method is quite unique. At the same time, the duration of the touch action is significantly different from that of a generally set touch action that can responsively perform the corresponding function. Therefore, the accidental touch action can be effectively screened out by setting the duration of the touch. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0018] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present invention.

[0019] Figure 3 This is an internal schematic diagram of an embodiment of the present invention.

[0020] Figure 4 The circuit diagram of the monitoring chip and metal electrode is shown in the embodiment.

[0021] Figure 5 The circuit schematic of the control chip in this embodiment is shown.

[0022] Figure 6 The circuit diagram of the motor drive circuit is shown in the embodiment.

[0023] Figure 7 The circuit diagram of the indicator light group is shown in the embodiment. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] This utility model discloses a personal care device with a sliding touch-sensitive switch, comprising a grip part to be held by hand and an action part for handling the human body. The surface of the grip part is provided with a touch area, and it includes a main control board disposed inside the grip part. The main control board is provided with:

[0027] There are N metal electrodes, where N is greater than or equal to 2, and each metal electrode is arranged at intervals along a straight line. Each metal electrode is located within the projected area of ​​the touch area, and the human hand passes through the metal electrodes located on the movement path along the touch area in sequence, thus forming a trigger signal.

[0028] After receiving the trigger signal, the control chip U2 outputs a control signal to control the processing action of the action unit.

[0029] The metal electrodes are arranged in a straight line, either along the width of the grip or along the length of the grip, so that the operation can be sliding along the width of the grip or along the length of the grip, and the sliding direction is not limited.

[0030] The control method of this application relies on the movement path covering adjacent metal electrodes. That is, by sliding the finger to touch the area, the adjacent metal electrodes are sequentially subjected to capacitance changes. By detecting the capacitance changes, a trigger signal is generated, which causes the control chip U2 to output a corresponding control signal, thereby driving the action unit to move.

[0031] The human body carries a weak static charge (usually accumulated due to friction or environmental factors). When it comes into contact with a metal electrode, the surface charge redistributes, creating transient current or voltage changes. Based on this principle, by using a finger to slide across the touch area, the change in capacitance between the metal electrode and the hand is detected, generating a trigger signal that serves as a condition for waking up or controlling the personal care device.

[0032] The electrostatic capacitance of the metal electrodes, that is, the amount of charge that can be stored between the metal electrodes and the hand, is used when the hand slides across the touch area. Specifically, as the hand slides, it contacts the metal electrodes in sequence, causing changes in the capacitance between each metal electrode and the hand. By sequentially detecting these changes in capacitance, the movement path is identified, thereby controlling the personal care device.

[0033] Meanwhile, the movement path covers at least two adjacent metal electrodes, thus avoiding accidental activation.

[0034] The actuating unit may be one of the following: a shaving working component, a hair dryer working component, a hair clipper working component, a lint remover working component, a beauty device working component, a moisturizing device working component, a hair styling tool working component, a curling and straightening tool working component, an electric toothbrush working component, a manual shaver working component, and an epilator working component.

[0035] The shaving working component is generally the razor head, while the hair clipper working component, lint remover working component, manual shaver working component, and epilator working component is generally the blade head assembly.

[0036] One end of the metal electrode 600 is electrically connected to the main control board 500, and the other end is in contact with the inner wall of the housing of the grip part 100.

[0037] The metal electrode 600 is a spring, which can be a disc spring, a tower spring, or a metal spring sheet. The metal electrode is placed as close as possible to the housing of the grip part, and the housing of the grip part is made of insulating material.

[0038] This application uses a razor as an example for specific illustration:

[0039] like Figure 1 and Figure 2 and Figure 3 As shown, a razor includes a grip portion 100 for being held by hand and an action portion 200 for handling the human body. The surface of the grip portion 100 is provided with a touch area 300, which includes a main control board 500 disposed inside the grip portion 100. The grip portion includes a housing and a razor inner tube inserted into the housing. The main control board is provided on one side of the razor inner tube. After the razor inner tube is inserted into the housing, a gap is formed between the side of the razor inner tube with the main control board and the inner wall of the housing. The main control board 500 is provided with:

[0040] Three metal electrodes 600 are arranged at intervals along a straight line, and each metal electrode 600 is located within the projected area of ​​the touch area 300. When a person's hand moves along the movement path of the touch area 300, it passes through the metal electrodes 600 located on the movement path in sequence, and a trigger signal is generated.

[0041] Control chip U2, such as Figure 5 As shown, after receiving the trigger signal, a control signal is output to control the processing action of the action unit 200.

[0042] The metal electrode is fixed on the main control board, with its entire body positioned between the gaps and its other end in contact with the housing. When a finger touches the surface of the housing, it generates capacitance with the corresponding metal electrode inside. The capacitance change when the finger approaches and moves away is used for motion recognition. The change in capacitance value of adjacent metal electrodes is used to recognize the movement path, thereby generating a trigger signal.

[0043] like Figure 3 As shown, the metal electrodes are divided into metal electrode A, metal electrode B, and metal electrode C, arranged sequentially along the axis of the touch area. The principle is that when a finger slides between adjacent metal electrodes, a trigger signal is generated, such as the path AB, BC, CB, or BA. This means at least two metal electrodes are triggered, or three metal electrodes can be triggered sequentially, such as the path ABC or CBA. It is preferred to set it to trigger with two metal electrodes, as this is simpler. Using a movement path for control also avoids accidental touches. In practice, the duration of each metal electrode's activation needs to be set; that is, triggering the adjacent second metal electrode must occur within a certain time after triggering the first metal electrode for it to be recognized as a valid signal. Furthermore, using the recognition of metal electrodes in a set order as a valid signal avoids the point-touch control method of AC.

[0044] The main control board 500 is also equipped with a detection chip U3. The metal electrodes 600 are electrically connected to different detection terminals of the detection chip U3. The detection chip U3 uses an NY8TM52D touch chip. Figure 4 As shown, the detection chip U3 has at least three input terminals, which are electrically connected to each metal electrode, and can generate trigger signals based on the changes in the capacitance value of each metal electrode.

[0045] The detection chip U3 outputs a trigger signal based on the capacitance changes generated by the sequentially touched metal electrodes 600. In this embodiment, the capacitance changes of the metal electrodes 600 passed sequentially along the movement path are used as the basis for generating the trigger signal.

[0046] An indicator area 400 is provided on either side of the touch area 300. In this embodiment, the indicator area is located above the touch area 300, and the indicator area can also be used for indicating the sliding path.

[0047] The indicator area 400 is provided with several indicator light groups, and each indicator light group is arranged sequentially along the arrangement direction of the metal electrodes.

[0048] The indicator light group includes two LEDs 700 of different colors connected in parallel.

[0049] like Figure 7As shown, in this embodiment, three LEDs are grouped together, and each group of LEDs corresponds to a metal electrode. The LEDs in this application are dual-color LEDs. Different colors are indicated by turning on different pins. For example, red and white dual-color LEDs are used in this application. Different colors can be indicated by controlling chip U2. By setting up a carousel, each LED is lit up sequentially according to the direction of the finger slide, so as to indicate the path of the finger slide.

[0050] The main control board also includes a motor drive circuit to control the motor's movement. This circuit is controlled by the control chip U2. This motor drive circuit is commonly used in shavers and will not be described in detail here; please refer to [link to circuit diagram]. Figure 6 .

[0051] The main control board also includes a power supply circuit, which comprises a voltage regulator circuit and a charging management circuit. The voltage regulator circuit, based on a voltage regulator chip, converts the input voltage into the operating voltage, while the charging management circuit manages battery charging and discharging. This power supply circuit uses a conventional charging management circuit, so it will not be described in detail.

[0052] The embodiments should not be regarded as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A personal care device with a sliding touch-sensitive switch, comprising a grip portion (100) to be held by hand and an action portion (200) for handling the human body, wherein the surface of the grip portion (100) is provided with a touch area (300), characterized in that: It includes a main control board (500) disposed inside the grip (100), and the main control board (500) is provided with: There are N metal electrodes (600), where N is greater than or equal to 2, and each metal electrode (600) is arranged at intervals along a straight line. Each metal electrode (600) is located within the projected area of ​​the touch area (300), and the human hand passes through the metal electrodes (600) located on the movement path along the touch area (300) in sequence, thus forming a trigger signal. After receiving the trigger signal, the control chip U2 outputs a control signal to control the processing action of the action unit (200).

2. The personal care device of claim 1, wherein: One end of the metal electrode (600) is electrically connected to the main control board (500), and the other end is in contact with the inner wall of the housing of the grip part (100).

3. A personal care device according to claim 1 or 2, characterized in that: The metal electrode (600) is a spring.

4. The personal care device of claim 1, wherein: The main control board (500) is also equipped with a detection chip U3, and the metal electrodes (600) are electrically connected to different detection terminals of the detection chip U3 respectively.

5. The personal care device of claim 4, wherein: The detection chip U3 outputs a trigger signal based on the change in capacitance generated by the sequentially touched metal electrodes (600).

6. The personal care device of claim 1, wherein: There are three metal electrodes (600), and the generation of the trigger signal depends on the movement path covering any two adjacent metal electrodes (600).

7. The personal care device of claim 1, wherein: An indicator area (400) is provided on either side of the touch area (300).

8. The personal care device of claim 7, wherein: The indicator area (400) is provided with several indicator light groups, and each indicator light group is arranged sequentially along the arrangement direction of the metal electrodes.

9. The personal care device of claim 8, wherein: The indicator light group includes two LEDs (700) of different colors connected in parallel.

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