A shaver based on hall induction control

Abstract

A shaver based on Hall induction control, comprising a shaver body, a head assembly arranged at one end of the shaver body, and a control board for controlling the action of the head assembly, further comprising: a rotatable protective frame sleeved outside the shaver body, one side of the protective frame being provided with a cover body for covering or exposing the head assembly; a Hall switch arranged inside the shaver body, a magnet corresponding to the position of the Hall switch being arranged on the protective frame, when the cover body is away from the head assembly by rotating the protective frame, the magnet triggers the Hall switch to generate a control signal, and the control board responds to the control signal to make the head assembly act. Directly using the relative rotation of the protective frame to realize the protection of the head assembly of the shaver, and using the Hall switch as a signal source for triggering the action of the head assembly, has the effects of no physical wear, long service life, and high reliability, and the protective cover is not easy to lose.

Description

Technical Field

[0001] This utility model relates to the field of facial contouring technology, specifically to a shaver based on Hall effect sensor control. Background Technology

[0002] Most existing shavers have protective caps to protect the shaver head. The conventional protective cap design is completely detachable, which means that the protective cap needs to be removed for storage during use, making it easy for the protective cap to be lost. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a shaver based on Hall effect sensor control.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A shaver based on Hall effect sensor control includes a shaver body, a shaver head assembly disposed at one end of the shaver body, and a control board for controlling the movement of the shaver head assembly, and further includes: A rotatable protective frame is fitted onto the outside of the shaver body, one side of which is configured as a cover for covering or exposing the blade assembly; Hall effect switch located inside the shaver body The protective frame is provided with a magnet corresponding to the position of the Hall switch. When the protective frame is rotated so that the cover is away from the cutter head assembly, the magnet triggers the Hall switch to generate a control signal. The control board responds to the control signal to make the cutter head assembly move.

[0005] The protective frame is connected to the shaver body via a pivot structure or a retaining ring structure, and can rotate 360 ​​degrees or reciprocate around the axis of the shaver body at a limited angle.

[0006] The protective frame is a ring-shaped, semi-ring-shaped, or U-shaped frame structure.

[0007] The magnet is embedded inside the cover. When the cover is rotated to a position that completely covers the blade assembly, the distance between the magnet and the Hall switch is greater than the sensing distance. When the cover is rotated away from the blade assembly, the magnet enters the sensing distance of the Hall switch.

[0008] The control board is arranged along the axis of the shaver body, and the Hall switch is fixedly arranged at the end of the control board away from the shaver head assembly.

[0009] The control board includes a main control unit and a drive unit. The signal output terminal of the Hall switch is electrically connected to the input terminal of the main control unit. The output terminal of the main control unit is electrically connected to the control terminal of the drive unit. The main control unit is configured to send a drive command to the drive unit only when it receives a control signal generated by the Hall switch, and to make the drive unit control the cutter head assembly to move.

[0010] The protective frame is equipped with a gear indicator at the junction with the shaver body.

[0011] The gear indicator mechanism includes: The first positioning element is set on the surface of the shaver body, and a positioning block is provided on its inner side; The second positioning component is located at the connection between the protective frame and the shaver body. It is inserted into the first positioning component and can rotate relative to it. It has several position slots facing the positioning block.

[0012] The razor body surface is provided with an indicator component.

[0013] The beneficial effects of this utility model are: the protection of the shaver head assembly is achieved by directly utilizing the relative rotation of the protective frame, and the Hall switch is used as the signal source to trigger the action of the shaver head assembly. This has the effects of no physical wear, long life and high reliability, and the protective cover is not easy to lose. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0016] Figure 3 This is a cross-sectional schematic diagram of the present invention (thickness direction).

[0017] Figure 4 for Figure 3 An enlarged diagram of point A in the diagram.

[0018] Figure 5 This is a schematic diagram of the structure of the light-transmitting area of ​​this utility model.

[0019] Figure 6 This is an exploded view of the indicator component of this utility model.

[0020] Figure 7 This is a schematic diagram of the gear indicator mechanism of this utility model.

[0021] Figure 8 This is a schematic diagram of the shell structure of this utility model.

[0022] Figure 9This is a schematic diagram of the structure of the protective frame of this utility model. Detailed Implementation

[0023] 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.

[0024] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.

[0025] like Figure 1 and Figure 2 As shown, this utility model provides a shaver, which includes a shaver body 100, a blade assembly 300 disposed at one end of the shaver body 100, and a control board 600 for controlling the movement of the blade assembly 300. The shaver body 100 includes a shell, which can be made of plastic or metal. The blade assembly and the shell are detachably connected by a snap-fit ​​or magnetic attraction method. The shell is hollow inside, and its upper end is provided with a bracket for supporting a gear set. This bracket encloses the shell to form a sealed space, which can prevent water or stubble from entering the shell. The bottom of the bracket extends to form a mounting bracket. A motor 400 is also provided inside the shell. A battery is disposed on one side of the motor 400 and the control board 600 on the other side. The control board 600 is fixedly mounted on the mounting bracket. When the control board 600 receives a control signal, it drives the blade assembly to move through the motor. This control signal can be triggered by a control switch disposed at any position on the shell. The control switch can be a touch chip, a tactile switch, a Hall sensor, etc.

[0026] In this embodiment, a Hall sensor is used as a control switch to check whether the start signal has been detected. Preferably, a protective frame 200 is provided on the outside of the housing. This protective frame 200 is a ring, semi-ring, or U-shaped frame structure. In this embodiment, a U-shaped frame structure is used. That is, the protective frame is rotatably fitted onto the outside of the shaver body through symmetrically arranged retaining rings or pivots. The structure arranged along the width direction of the shaver body is the cover 220. Its projected area on the horizontal plane covers the entire shaver head assembly, thus protecting the shaver head assembly in the first position. By rotating the protective frame, it can be rotated to a certain angle. By setting a Hall switch at a specific angle, when it is rotated to the set angle, the magnet embedded in the protective frame triggers the Hall switch, thereby driving the shaver head assembly to work.

[0027] In this embodiment, the control board 600 is arranged along the axial direction of the shaver body 100, and the Hall switch 610 is fixedly arranged at the end of the control board 600 away from the shaver head assembly 300. That is, the rotation angle is 180 degrees, which means the protective frame is moved to the other end of the shaver body.

[0028] like Figure 9 As shown, the protective frame 200 is provided with a magnet 210 corresponding to the position of the Hall switch 610. When the protective frame 200 is rotated so that the cover 220 leaves the cutter head assembly 300, the magnet 210 triggers the Hall switch 610 to generate a control signal. The control board 600 responds to the control signal to make the cutter head assembly 300 move.

[0029] The protective frame 200 is connected to the shaver body 100 via a pivot structure or a retaining ring structure, and can rotate 360 ​​degrees or reciprocate at a limited angle around the axis of the shaver body 100. In this embodiment, 360-degree rotation is used, meaning that the angle of the protective frame is not limited.

[0030] The magnet 210 is embedded inside the cover 220. When the cover 220 rotates to completely cover the blade assembly 300, the distance between the magnet 210 and the Hall switch 610 is greater than the sensing distance. When the cover 220 rotates away from the blade assembly 300, the magnet 210 enters the sensing distance of the Hall switch 610. In this embodiment, the sensing distance is defined as the magnet and the Hall switch being directly opposite each other, thus clearly defining a single position to activate the blade assembly and avoiding misoperation caused by external force rotating the protective frame during transport.

[0031] The control board 600 includes a main control unit and a drive unit. The signal output terminal of the Hall switch 610 is electrically connected to the input terminal of the main control unit; the output terminal of the main control unit is electrically connected to the control terminal of the drive unit. The main control unit is configured to send a drive command to the drive unit only when it receives a control signal generated by the Hall switch 610, thereby causing the drive unit to control the blade assembly 300 to operate. When the Hall switch 610 is triggered, it outputs a high-level or low-level control signal to the main control unit. Upon receiving this signal, the main control unit outputs a command to the drive unit, causing the drive unit to drive the blade assembly to work. The main control unit can be a microcontroller unit (MCU), such as the common STM32 series or Arduino. The drive unit is a simple drive circuit used to control the motor to receive power, and the related circuit is a common circuit for shavers, so it will not be described in detail in this application.

[0032] like Figure 7 and Figure 8 As shown, a gear indicator mechanism is provided at the interface between the protective frame 200 and the shaver body 100.

[0033] The gear indicator mechanism includes: The first positioning element 700 is disposed on the surface of the shaver body 100, and a positioning block 740 is provided on its inner side. The second positioning member 800 is located at the connection between the protective frame 200 and the shaver body 100. It is inserted into the first positioning member 700 and can rotate relative to it. It is provided with several position grooves 810 facing the positioning block 740.

[0034] The second positioning component 800 is inserted into and mates with the first positioning component, and the two can rotate relative to each other. Rotation can be achieved through a snap-fit ​​mechanism, or it can be fixed by bolts. In this embodiment, bolts are used for fixing. The rotating component is fixed to the main body using bolts, and due to the smooth surface design between the rotating component and the bolt, the rotating component can rotate relative to the main body. In this embodiment, it is mainly used in a shaver, so the main body can be the shaver body, and the rotating component is a U-shaped or ring-shaped protective frame, mainly serving to protect the shaver head assembly.

[0035] The first positioning member 700 has a slot 710 with a positioning block 740, i.e., the positioning block is disposed inside the slot.

[0036] The second positioning member 800 is inserted into the first positioning member 700 and forms a rotatable engagement, and is provided with a plurality of stop slots 810; that is, the outer surface of the second positioning member is rotatably engaged with the first positioning member, and the inner surface of the second positioning member is provided with a plurality of stop slots, which are four in this embodiment, and are distributed at 0°, 90°, 180° and 270°, thereby realizing the indication of different rotation angles of the protective frame.

[0037] Two positioning blocks are arranged opposite each other. The slot 710 is provided with a U-shaped elastic element 730 fixed to one side, and its two elastic arms respectively overlap with the positioning block 740, so that the positioning block 740 and the positioning groove 810 form a positioning position. The U-shaped elastic element plays the role of supporting the positioning block. At the same time, when the protective frame rotates relative to each other, it can be driven to compress the U-shaped elastic element to form an elastic force, and after the external force is released, it drives the positioning block to return to its original position.

[0038] In this embodiment, the U-shaped elastic element is a U-shaped retaining spring or a U-shaped spring sheet. A fixing groove 770 is provided on one side of the slot 710, and the U-shaped elastic element 730 is embedded in the fixing groove 770. That is, the middle section is locked in the fixing groove 770, while the two elastic arms extend to the bottom of the positioning block and apply an outward force to it.

[0039] The rotating component and the main body are rotatably coupled via a rotating shaft assembly, which consists of a copper sleeve 750 embedded in the slot 710 and a bolt 720 for fixing the rotating component and the main body. The bolt is locked to the copper sleeve to ensure a reliable connection between the rotating component and the main body.

[0040] The slot 710 is provided with a first positioning member 760 having a through hole. The positioning block 740 is slidably disposed within the first positioning member 760. One end of the positioning block 740 has a protrusion 741 that can pass through the through hole. The first positioning member serves to restrict the positioning block. The positioning block is pressed against the first positioning member by a U-shaped elastic member, and its protrusion passes through the through hole and contacts the inner surface of the outer second positioning member. When the inner surface contacts the protrusion, it causes the positioning block to move inward against the elastic force. When the gear slot contacts the protrusion, the pressure is released, the U-shaped elastic member returns to its original position, and the protrusion enters the gear slot. The movement of the protrusion along the inner surface of the second positioning member achieves the gear shifting design. At the same time, the U-shaped elastic member allows the positioning block to be pre-installed in the first positioning member, making assembly more convenient and improving production efficiency.

[0041] The other end of the positioning block 740 is provided with a limiting groove for limiting the elastic arm. The limiting groove accommodates the elastic arm, thereby preventing the positioning block from being ejected. It can always ensure that the positioning block is limited in the slot of the first positioning member by the U-shaped elastic member and will not fall out.

[0042] The bottom of the slot 710 is provided with a guide groove 780 that is adapted to the positioning block 740, which serves to guide the sliding of the positioning block.

[0043] The razor body 100 has an indicator component on its surface.

[0044] like Figure 5 As shown, the indicator component includes a light-transmitting area 110 disposed on the surface of the housing. The light-transmitting area 110 is provided with a plurality of light-transmitting holes 170 distributed in a circular shape, forming two spaced-apart circular structures. The light-transmitting area is located at the center of the entire housing, and it is provided with two circular structures of the same size. The circular structures are both composed of light-transmitting holes distributed circumferentially.

[0045] Meanwhile, the inner side of the housing is provided with a number of LEDs 630 corresponding to the light-transmitting holes 170. The arrangement of the LEDs 630 corresponds to the ring structure formed by the light-transmitting holes 170. The number of LEDs is the same as the number of light-transmitting holes, and the LEDs are also divided into two groups, which are respectively set to correspond to the two ring structures, so that the two ring structures can present the light effect of the tape running.

[0046] The control board 600 is electrically connected to multiple LEDs 630, and the control board 600 is configured to control the multiple LEDs 630 to light up and turn off sequentially in a carousel-like manner, thereby creating a dynamic light and shadow effect simulating the rotation of a magnetic tape on the surface of the housing through the light-transmitting hole 170. The main control unit of the control board can be a microcontroller unit (MCU), such as the common STM32 series or Arduino, which stores the control program to implement the carousel effect.

[0047] The main control unit of the control board 600 controls the LEDs to achieve the carousel effect through pre-programming. The carousel design uses conventional programming methods and can be used directly. When the LEDs are triggered sequentially, their light shines through the corresponding light-transmitting holes and forms a discrete or continuous light spot moving along a circular trajectory on the surface of the housing, thereby dynamically simulating the classic animation effect of a magnetic tape continuously rotating on a guide wheel.

[0048] like Figure 3 and Figure 4 As shown, a flexible circuit board 620 is provided inside the housing, and the LEDs 630 are distributed in a ring on the flexible circuit board 620. The flexible circuit board 620 is electrically connected to the control board 600. Using a flexible circuit board allows for a thinner design, better utilization of the gap between the motor mounting bracket and the housing, and without increasing the overall thickness of the shaver body.

[0049] Each ring structure has at least six LEDs 630, evenly spaced and corresponding one-to-one with the light-transmitting holes to ensure light emission efficiency and directional accuracy. The maximum number of LEDs in each ring structure is 12. This range balances animation smoothness with cost and control complexity; too many LEDs would negatively impact the overall tape playback.

[0050] The light-transmitting hole is an elongated hole, with its length 170 positioned radially or tangentially along the annulus, making it visually resemble the shape of a magnetic tape passing through guide rollers. The length of the light-transmitting hole 170 is greater than its width, forming a narrow, elongated light spot similar to the guide rollers of a magnetic tape. This shape closely resembles the exposed magnetic stripe or gaps between guide rollers in a traditional magnetic tape, and is key to creating the visual symbol of a "magnetic tape." Simultaneously, the control board controls the LEDs to illuminate in a manner where only a single LED or a few adjacent LEDs are lit at a time, and this illumination state moves sequentially along the circumference of the annulus at a constant or near-constant speed, creating a chasing effect. To make the transition between light and shadow smoother and more natural, simulating the motion blur effect of real objects, the control board is also configured to control the illuminated LEDs to have a gradual brightening (e.g., PWM dimming from 0% to 100%) and / or gradual dimming (from 100% to 0%) brightness change process.

[0051] like Figure 6 As shown, the light-transmitting area 110 is provided with a light-transmitting plate 140, which is used to close the light-transmitting hole.

[0052] The light-transmitting plate 140 has a first decorative layer 150 on its outer side to simulate a magnetic tape reel. The first decorative layer has two magnetic tape reel patterns, which are located on the outer periphery of the circular structure to simulate magnetic tape reels. At the same time, the two magnetic tape reels have different diameters to simulate the receiving and sending magnetic tape reels, respectively.

[0053] Meanwhile, the outer side is sealed with a waterproof layer by ultrasonic welding, which seals the first decorative layer 150 and the light-transmitting plate to ensure the sealing of the light-transmitting area and improve the waterproof performance.

[0054] The light-transmitting area 110 is surrounded by a second decorative layer 130 for simulating a magnetic tape compartment. The second decorative layer simulates the external shape of a magnetic tape and works in conjunction with the first decorative layer to achieve the state of a magnetic tape stored in a tape recorder.

[0055] The lower right side of the housing is provided with an analog button 120, which is used to simulate the buttons of a tape recorder. In some embodiments, it can also be used as a control switch.

[0056] 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 shaver based on Hall effect sensor control, comprising a shaver body (100), a shaver head assembly (300) disposed at one end of the shaver body (100), and a control board (600) for controlling the movement of the shaver head assembly (300), characterized in that: Also includes: A rotatable protective frame (200) is fitted on the outside of the shaver body (100), one side of which is configured as a cover (220) for covering or exposing the blade assembly (300). Hall switch (610) is disposed inside the shaver body (100). The protective frame (200) is provided with a magnet (210) corresponding to the position of the Hall switch (610). When the protective frame (200) is rotated so that the cover (220) leaves the cutter head assembly (300), the magnet (210) triggers the Hall switch (610) to generate a control signal. The control board (600) responds to the control signal to make the cutter head assembly (300) move.

2. The shaver based on Hall effect sensor control according to claim 1, characterized in that: The protective frame (200) is connected to the shaver body (100) via a pivot structure or a retaining ring structure, and can rotate 360 ​​degrees or reciprocate within a limited angle around the axis of the shaver body (100).

3. A shaver based on Hall effect sensor control according to claim 1 or 2, characterized in that: The protective frame (200) is a ring, semi-ring or U-shaped frame structure.

4. A shaver based on Hall effect sensor control according to claim 1, characterized in that: The magnet (210) is embedded inside the cover (220). When the cover (220) rotates to a position that completely covers the blade assembly (300), the distance between the magnet (210) and the Hall switch (610) is greater than the sensing distance. When the cover (220) rotates away from the blade assembly (300), the magnet (210) enters the sensing distance of the Hall switch (610).

5. A shaver based on Hall effect sensor control according to claim 1 or 4, characterized in that: The control board (600) is arranged along the axis of the shaver body (100), and the Hall switch (610) is fixedly arranged at the end of the control board (600) away from the head assembly (300).

6. A shaver based on Hall effect sensor control according to claim 5, characterized in that: The control board (600) includes a main control unit and a drive unit. The signal output terminal of the Hall switch (610) is electrically connected to the input terminal of the main control unit. The output terminal of the main control unit is electrically connected to the control terminal of the drive unit. The main control unit is configured to send a drive command to the drive unit only when it receives the control signal generated by the Hall switch (610), and cause the drive unit to control the cutter head assembly (300) to move.

7. A shaver based on Hall effect sensor control according to claim 1, characterized in that: The protective frame (200) is provided with a gear indicator at the junction with the shaver body (100).

8. A shaver based on Hall effect sensor control according to claim 7, characterized in that: The gear indicator mechanism includes: The first positioning element (700) is disposed on the surface of the shaver body (100), and a positioning block (740) is provided on its inner side. The second positioning member (800) is located at the connection between the protective frame (200) and the shaver body (100). It is inserted into the first positioning member (700) and can rotate relative to it. It has several position grooves (810) facing the positioning block (740).

9. A shaver based on Hall effect sensor control according to claim 1, characterized in that: The razor body (100) has an indicator component on its surface.

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