A light chasing hair clipper

Abstract

The utility model discloses a kind of hairdressing apparatuss of outer rotor motor light chasing screen flashing, it is related to hairdressing apparatus technical field, including shell body, inner casing, hairdressing apparatus cutter head, inner casing inside fixed outer rotor motor and lamp holder, outer rotor motor outer rotor surface is equipped with pattern, lamp holder top and bottom are equipped with more than six LED lamp beads, inner casing outside is equipped with transparent shell, inner casing corresponding transparent shell place opens window, power supply and circuit board are also equipped in inner casing, circuit board integrated contact switch and USB charging interface, shell body is equipped with light switch, it is matched with the rotational speed frequency of outer rotor 7500rpm by outer rotor light chasing technology, the pattern is clearly seen by consumer through window, increase interactivity, give window design meaning, while retaining the advantages of outer rotor motor torsion, good hairdressing effect.

Description

Technical Field

[0001] This utility model relates to the field of hair clipper technology, and in particular to an external rotor motor-driven light-following screen hair clipper. Background Technology

[0002] In the field of hair clipper technology, external rotor motors, due to their greater torque than traditional internal rotor motors, can significantly improve the smoothness and cutting effect of electric hair clippers, and are gradually being adapted and applied to external rotor hair clipper products.

[0003] To optimize product appearance and meet consumers' needs for observing the internal structure, some external rotor hair clippers have a viewing window on the housing. However, existing external rotor hair clippers only achieve basic compatibility between the external rotor motor and the clippers, without being specifically designed for the high-speed operation characteristics of the motor. When the external rotor motor is working, the speed can usually reach more than 6000 rpm. Under this high-speed rotation, consumers cannot clearly observe the pattern on the surface of the motor through the viewing window, but can only see a blurry dynamic image.

[0004] This problem not only leads to a lack of effective interaction between consumers and products, making it impossible to obtain the expected visual experience through the viewing window, but also renders the windowed appearance design on the hair clippers meaningless and fails to fully realize its design value, becoming the main shortcoming of current external rotor hair clipper products in terms of user experience and the integration of appearance and function. Utility Model Content

[0005] To address the technical problems existing in the background art, this utility model proposes an external rotor motor chasing screen flashing hair clipper.

[0006] This utility model proposes an external rotor motor-driven light-flashing hair clipper, comprising an outer shell, an inner shell fixed inside the outer shell, and a hair clipper head installed at the end of the inner shell. An external rotor motor is fixedly installed inside the inner shell, and the surface of the outer rotor of the external rotor motor is decorated with several patterns. A lamp holder is also fixedly installed inside the inner shell, and several LED beads are installed at the top and bottom of the lamp holder to illuminate the patterns. A transparent shell is fixedly installed outside the inner shell and between the outer shell and the hair clipper head to create a flashing effect when the patterns are illuminated and rotate at high speed.

[0007] Furthermore, a power supply and a circuit board are installed inside the inner housing. The circuit board integrates at least one contact switch for controlling the light to turn on and off. A light switch is movably connected to the surface of the outer housing, and the light switch corresponds to the contact switch.

[0008] Furthermore, the inner shell has symmetrically placed windows on its surface corresponding to the transparent shell to facilitate viewing the screen flicker effect.

[0009] Furthermore, a gap is reserved between the inner shell and the LED beads to allow the light emitted by the LED beads to illuminate the surface of the pattern.

[0010] Furthermore, the driving end of the external rotor motor is connected to the driven end of the hair clipper head to drive the hair clipper head to work.

[0011] Furthermore, the transparent shell is made of transparent acrylic sheet material, and both ends of the transparent shell are engaged with the outer shell and the hair clipper head.

[0012] Furthermore, the external rotor motor is configured as any one or more combinations of letters, words, and graphics.

[0013] Furthermore, a USB charging interface is integrated on the circuit board, and a through hole is provided at the tail end of the outer casing. The USB charging interface extends to the outside of the outer casing through the through hole to facilitate charging of the hair clipper.

[0014] The beneficial effects of this utility model are as follows: By adopting external rotor light-tracking technology, six or more LED beads are arranged directly above or below the high-speed rotating external rotor motor, and the flashing frequency of the LED beads is precisely matched with the rotational speed frequency of the external rotor. This effectively solves the problem that existing external rotor hair clippers, due to motor speeds exceeding 6000 rpm, prevent consumers from clearly observing the patterns on the motor surface through the viewing window. This not only allows consumers to clearly see the patterns on the motor, significantly increasing the interaction between consumers and the product, but also makes the windowed appearance design of the hair clippers more than just a formality, truly possessing practical function and significance. At the same time, it retains the advantages of the external rotor motor's high torque and good hair-cutting effect, achieving a synergistic improvement in practical function and user experience. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the disassembled structure of this utility model; Figure 2 This is a schematic diagram of the structure of the present invention in which a pattern is set around the surface of the outer rotor motor; Figure 3 This is a schematic diagram of the structure of the lamp holder for installing LED beads in this utility model; Figure 4 This is a schematic diagram of the assembly structure of this utility model; Figure 5 This is a half-sectional view of the assembled version of this utility model.

[0016] In the diagram: 1. Outer shell; 11. Light switch; 2. Inner shell; 21. Viewing window; 3. Hair clipper blade; 4. Outer rotor motor; 41. Pattern; 5. Lamp holder; 51. LED beads; 6. Transparent shell; 7. Power supply; 8. Circuit board. Detailed Implementation

[0017] Reference Figure 1-5 This utility model proposes an external rotor motor-driven light-flash hair clipper, which consists of three basic components: an outer shell 1, an inner shell 2, and a hair clipper head 3. A light switch 11 is movably connected to the surface of the outer shell 1. This switch directly corresponds to the contact switch on the internal circuit board 8 and is the core operating component for the user to control the flashing function. A through hole is reserved at the tail end of the outer shell 1 to allow the USB charging interface on the circuit board 8 to extend to the outside, so that the user can charge the hair clipper at any time. At the same time, the interior of the outer shell 1 provides a stable installation space for the inner shell 2, ensuring that the internal components do not shift during use. The inner shell 2 is fixed inside the outer shell 1. The hair clipper head 3 is installed at the end of the inner shell 2. The outer rotor motor 4 is fixedly installed inside. The driving end of the outer rotor motor 4 is directly connected to the driven end of the hair clipper head 3. When the outer rotor motor 4 is started, it can drive the hair clipper head 3 to rotate at high speed, realizing the core function of cutting hair (this function is the inherent structure of the existing hair clipper, and the specific structure and principle will not be detailed here). Moreover, the torque of the outer rotor motor 4 is greater than that of the traditional inner rotor motor, which can improve the smoothness of the hair cutting effect. To achieve the screen flashing effect, the structural design of the inner housing 2 has several targeted optimizations. First, viewing windows 21 are symmetrically opened on the surface of the inner housing 2 at positions corresponding to the transparent shell 6. These viewing windows 21 serve as a "window" for users to observe the screen flashing effect, ensuring that the pattern 41 on the surface of the outer rotor motor 4 can be clearly transmitted to the outside under light illumination. Second, a lamp holder 5 is fixedly installed inside the inner housing 2. The top and bottom of the lamp holder 5 are equipped with more than six LED beads 51, and a gap is reserved between the inner housing 2 and the LED beads 51. This gap can prevent the light from being blocked, ensuring that the light emitted by the LED beads 51 can accurately illuminate the surface of the outer rotor motor 4. Third, a pattern 41 is set around the outer rotor surface of the outer rotor motor 4. The pattern 41 can be any one or more combinations of letters, text, and graphics, providing rich visual materials for the screen flashing effect. The transparent shell 6 is fixed to the outside of the inner shell 2 and is located between the outer shell 1 and the hair clipper head 3. It is made of transparent acrylic sheet material, which has the characteristics of good light transmission and high hardness. It can protect the viewing window 21 and internal components on the inner shell 2 without affecting the observation of the screen flashing effect, and prevent dust and hair from entering. The two ends of the transparent shell 6 are respectively engaged with the outer shell 1 and the hair clipper head 3. The installation method is simple and stable, ensuring that it will not fall off during use.

[0018] The inner casing 2 also houses a power supply 7 and a circuit board 8. The power supply 7 provides power for the operation of the entire hair clipper, including driving the external rotor motor 4 and lighting the LED beads 51. In addition to the integrated contact switch for controlling the light to turn on and off, the circuit board 8 also integrates a USB charging interface, which not only realizes convenient control of the light but also meets the charging needs.

[0019] In addition, the technical principle of screen flicker is explained as follows: 1. Displaying rapidly rotating patterns through screen flicker is based on the principle of using the persistence of vision and strobe synchronization to precisely match the screen flicker frequency with the pattern rotation frequency, thereby "freezing" the dynamic pattern and presenting a clear static or continuous animation effect.

[0020] 2. This phenomenon is essentially a clever combination of the characteristics of the human visual system and physical motion. It is commonly seen in scenarios such as "strobe turntables" and "rotating LED screens," and there is clear scientific logic supporting it.

[0021] 3. Core Principle: Visual Persistence and Frequency Synchronization 3.1 Visual Persistence Effect: Images seen by the human eye remain on the retina for approximately 0.1-0.4 seconds. If rapid, continuous images appear within this time interval, the brain fuses them into a coherent picture (the principle behind movies and animations). Conversely, if the flickering "viewpoint" (screen) is aligned with the rhythm of the rotating pattern, motion blur can be counteracted, making the pattern appear "still."

[0022] 3.2 Key to Frequency Synchronization: For the pattern to be displayed clearly, the screen flicker frequency must be consistent with the pattern rotation frequency (or an integer multiple / approximation thereof).

[0023] 3.3 Assuming the pattern rotates 10 times per second (frequency 10Hz), if the screen flickers 10 times per second, and the pattern returns to the same position each time it flickers, the human eye will see a clear pattern that appears "stationary".

[0024] 3.4 If the flashing frequency is twice the rotation frequency (20Hz), the pattern will appear alternately in two fixed positions, forming a "double image"; if the frequency is slightly off, the pattern will appear to rotate slowly.

[0025] 4. Common application scenarios 4.1 This principle is widely used in entertainment, education, and display technologies. Typical examples include: 4.1.1. Strobe Turntable Toy: The turntable is printed with misaligned static patterns (such as "running little people" or "rotating gears"). When the strobe light shines on the rotating turntable, you can see the little people "running" or the gears "meshing and rotating".

[0026] 4.1.2 Rotating LED Display: A high-speed rotating LED light strip, combined with LED beads that flash at a specific frequency, can "draw" text and patterns in the air (such as rotating LED bars at concerts and outdoor rotating advertising screens).

[0027] 4.1.3 Physics teaching demonstration: Used to visually demonstrate physical concepts such as "persistence of vision" and "relationship between frequency and motion", helping to understand the imaging principles of movies and television.

[0028] 4.2 Implementation conditions and precautions 4.2.1 Precise Frequency Matching: This is the most crucial condition. If the screen flicker frequency deviates from the pattern rotation frequency by more than 5%, the pattern may become blurry, jittery, or fail to display properly. Precise control of both frequencies is required through equipment (such as an adjustable speed motor or a programmable strobe light).

[0029] 4.2.2 Ambient Light Control: Excessive ambient light can interfere with the screen's "contrast" and weaken the persistence of vision, making it difficult to clearly display images. This effect is usually more noticeable in dimly lit environments.

[0030] 4.2.3 Pattern Design Requirements: The rotating pattern must be designed according to the expected display effect. For example, if it is to present an "animation", the continuous action must be broken down into multiple "frames" and distributed on the rotating carrier at a specific angle (e.g., 8 "running postures" are printed around the turntable, and a continuous running action will be seen when it flashes).

[0031] 4.2.4 Risk of visual fatigue: Staring at a high-frequency flickering screen or pattern for a long time may cause eye fatigue, dizziness and other discomfort. It is recommended to control the observation time and avoid prolonged use in bright light or dim light environments.

[0032] Finally, the flicker effect of this hair clipper is achieved based on the principle of "visual persistence effect + frequency synchronization", and its specific workflow is as follows: Start-up and frequency matching: When the user presses the light switch 11 on the surface of the outer casing 1, the contact switch on the circuit board 8 is triggered, and the LED bead 51 starts to flash. At this time, the speed of the external rotor motor 4 is stabilized at 7500 rpm, and the flashing frequency of the LED bead 51 is precisely controlled at 14000-15000 rpm. This frequency is matched with the speed frequency of the external rotor motor 4, which can counteract the blurring caused by the high-speed rotation of the pattern 41. Effect presentation: The light emitted by the LED beads 51 shines on the pattern 41 on the surface of the outer rotor motor 4 through the reserved gap. Since the flashing frequency of the light is synchronized with the rotation frequency of the motor, combined with the visual persistence effect of 0.1-0.4 seconds of the human eye, the dynamic movement of the pattern 41 is "frozen". The user can clearly observe the pattern 41, which was originally blurred due to high speed rotation, through the viewing window 21 of the inner shell 2 and the transparent shell 6, to achieve the screen flashing effect, increase the interactivity between the user and the product, and make the window appearance design of the hair clipper more meaningful. Function switching: If the user does not need the screen flashing effect, pressing the light switch 11 again will turn off the LED light bead 51. At this time, the external rotor motor 4 can still drive the hair clipper head 3 to work normally, without affecting the normal use of the hair cutting function.

[0033] During use, attention should be paid to the effect of ambient light on the screen flicker effect: Since excessively bright ambient light will interfere with the light contrast of LED beads 51, it may cause the pattern 41 to be displayed blurry. Therefore, it is better to observe the screen flicker effect in a darker environment. At the same time, staring at the high-frequency flickering pattern 41 for a long time may cause eye fatigue. It is recommended to control the observation time and avoid overuse of the screen flicker function.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A type of external rotor motor-driven light-flash hair clipper, comprising an outer shell (1), an inner shell (2) fixed inside the outer shell (1), and a hair clipper head (3) installed at the end of the inner shell (2), characterized in that, An external rotor motor (4) is fixedly installed inside the inner housing (2). Several patterns (41) are arranged around the surface of the external rotor of the external rotor motor (4). A lamp holder (5) is also fixedly installed inside the inner housing (2). Several LED beads (51) are installed on the top and bottom of the lamp holder (5) to illuminate the patterns (41). A transparent shell (6) is fixedly installed outside the inner housing (2) and between the outer shell (1) and the hair clipper head (3) to create a screen flashing effect when the pattern (41) is illuminated and rotates at high speed.

2. The external rotor motor-guided light-flash hair clipper according to claim 1, characterized in that, The inner housing (2) is also equipped with a power supply (7) and a circuit board (8). The circuit board (8) is equipped with at least one contact switch for controlling the light to turn on and off. The outer housing (1) is movably connected to a light switch (11), which corresponds to the contact switch.

3. The external rotor motor-guided light-flash hair clipper according to claim 1, characterized in that, The inner shell (2) has symmetrically opened windows (21) on its surface and at the position corresponding to the transparent shell (6) to facilitate viewing the screen flashing effect.

4. The external rotor motor-guided light-flash hair clipper according to claim 1, characterized in that, A gap is reserved between the inner shell (2) and the LED beads (51) so that the light emitted by the LED beads (51) can illuminate the surface of the pattern (41).

5. The external rotor motor-guided light-flash hair clipper according to claim 1, characterized in that, The driving end of the external rotor motor (4) is connected to the driven end of the hair clipper head (3) to drive the hair clipper head (3) to work.

6. The external rotor motor-guided light-flash hair clipper according to claim 1, characterized in that, The transparent shell (6) is made of transparent acrylic sheet, and the two ends of the transparent shell (6) are engaged with the outer shell (1) and the hair clipper head (3).

7. The external rotor motor-guided light-flash hair clipper according to claim 1, characterized in that, The external rotor motor (4) is configured as any one or more combinations of letters, words, and graphics.

8. The external rotor motor-guided light-flash hair clipper according to claim 1, characterized in that, The circuit board (8) also integrates a USB charging interface. A through hole is reserved at the tail end of the outer shell (1). The USB charging interface extends to the outside of the outer shell (1) through the through hole to facilitate charging of the hair clipper.

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