A beauty and hair styling control circuit and a beauty and hair styling device

Abstract

This utility model proposes a beauty and hairdressing control circuit and a beauty and hairdressing device, including a control unit, a switching unit, an ultrasonic transducer, and an LED module. The input terminal of the switching unit is electrically connected to a power supply, the controlled terminal of the switching unit is electrically connected to the driving terminal of the control unit, and the output terminal of the switching unit is electrically connected to the positive terminal of the ultrasonic transducer and the positive terminal of the LED module. The negative terminals of the ultrasonic transducer and the LED module are grounded. It also includes a first diode, the anode of which is electrically connected to the negative terminal of the ultrasonic transducer and the negative terminal of the LED module, and the cathode of which is electrically connected to the positive terminal of the ultrasonic transducer and the positive terminal of the LED module. The beauty and hairdressing control circuit provided by this technical solution only needs one drive serial port to complete the operation of the ultrasonic transducer and the LED module, thus occupying less PCB space and reducing manufacturing costs.

Description

Technical Field

[0001] This utility model relates to the field of electronic technology, specifically to a beauty and hairdressing control circuit and a beauty and hairdressing device. Background Technology

[0002] Beauty and hairdressing control circuits typically include ultrasonic transducers and LED module lights, which need to be driven by a control unit to operate.

[0003] However, in the existing technology, the ultrasonic transducer and LED module lights are controlled by the control unit outputting signals separately, which occupies a lot of serial ports of the microcontroller and results in a large PCB space. Therefore, the cost of this driving circuit is relatively high. Utility Model Content

[0004] To solve the above problems, this utility model proposes a beauty and hairdressing control circuit and a beauty and hairdressing device.

[0005] This utility model provides a beauty and hairdressing control circuit, including a control unit, a switching unit, an ultrasonic transducer, and an LED module. The input terminal of the switching unit is electrically connected to a power supply, the controlled terminal of the switching unit is electrically connected to the driving terminal of the control unit, and the output terminal of the switching unit is electrically connected to the positive terminal of the ultrasonic transducer and the positive terminal of the LED module. The negative terminals of the ultrasonic transducer and the LED module are grounded. The circuit also includes a first diode, the anode of which is electrically connected to the negative terminal of the ultrasonic transducer and the negative terminal of the LED module, and the cathode of which is electrically connected to the positive terminal of the ultrasonic transducer and the positive terminal of the LED module.

[0006] The beauty and hairdressing control circuit described in this utility model has the following advantages compared with the prior art:

[0007] This utility model's beauty and hairdressing control circuit includes a switching unit and a first diode. Firstly, a drive signal is output from the control unit's drive terminal to the controlled terminal of the switching unit, thereby supplying the power supply voltage to the ultrasonic transducer and LED module. Simultaneously, the first diode acts as a voltage clamp in the circuit, providing a suitable DC operating voltage to the LED module. Therefore, the beauty and hairdressing control circuit provided by this technical solution only requires a single drive serial port to drive the ultrasonic transducer and LED module, resulting in a smaller PCB space footprint and reduced manufacturing costs.

[0008] Furthermore, the switching unit includes a MOSFET, a first inductor, and a first capacitor. The first terminal of the first inductor is electrically connected to the power supply, the second terminal of the first inductor is electrically connected to the first terminal of the first capacitor, the second terminal of the first capacitor is electrically connected to the negative terminal of the first diode, the positive terminal of the ultrasonic transducer, and the positive terminal of the LED module, the gate of the MOSFET is electrically connected to the driving terminal of the control unit, the drain of the MOSFET is electrically connected to the third terminal of the first inductor, the source of the MOSFET is grounded, and the third terminal of the first inductor is located between the first terminal and the second terminal of the first inductor.

[0009] Furthermore, the switching unit also includes a first resistor and a second resistor. The first end of the first resistor is electrically connected to the driving end of the control unit, the second end of the first resistor is electrically connected to the gate of the MOS transistor, the first end of the second resistor is electrically connected to the second end of the first resistor, and the second end of the second resistor is electrically connected to the source of the MOS transistor.

[0010] Furthermore, the detection unit includes a fourth resistor and a seventh resistor. The first end of the fourth resistor is electrically connected to the detection end of the control unit. The second end of the fourth resistor is electrically connected to the source of the MOS transistor, the anode of the first diode, the cathode of the ultrasonic transducer, the cathode of the LED module, and the first end of the seventh resistor. The second end of the seventh resistor is grounded.

[0011] Furthermore, the detection unit also includes a third resistor, a second capacitor, a third capacitor, and a fourth capacitor. The first end of the third resistor is electrically connected to the detection end of the control unit, the second end of the third resistor is electrically connected to the first end of the fourth resistor, the first ends of the second capacitor and the first ends of the third capacitor are electrically connected to the first end of the third resistor, the first end of the fourth capacitor is electrically connected to the second end of the third resistor, and the second ends of the second capacitor, the second ends of the third capacitor, and the third ends of the fourth capacitor are grounded.

[0012] Furthermore, the LED module includes multiple light-emitting diodes.

[0013] Furthermore, the LED module includes multiple LED light components connected in parallel.

[0014] Furthermore, the LED light assembly includes multiple light-emitting diodes connected in series.

[0015] This utility model also provides a beauty and hairdressing control circuit, including a control unit, a switching unit, an ultrasonic transducer, and an LED module. The input terminal of the switching unit is electrically connected to a power supply, the controlled terminal of the switching unit is electrically connected to the driving terminal of the control unit, the output terminal of the switching unit is electrically connected to the first positive terminal of the ultrasonic transducer and the second positive terminal of the LED module, the first negative terminal of the ultrasonic transducer and the second negative terminal of the LED module are grounded, and the LED module is connected in parallel with the ultrasonic transducer.

[0016] The LED module includes multiple LED light components connected in parallel. Each LED light component includes a light-emitting diode. In one of the multiple LED light components, the positive terminal of the light-emitting diode is electrically connected to the first negative terminal of the ultrasonic transducer, and the negative terminal is electrically connected to the first positive terminal of the ultrasonic transducer.

[0017] The beauty and hairdressing control circuit described in this utility model has the following advantages compared with the prior art:

[0018] This utility model's beauty and hairdressing control circuit includes a switching unit and an LED assembly. The positive terminal of the LED in the LED assembly is electrically connected to the first negative terminal of the ultrasonic transducer, and the negative terminal is electrically connected to the first positive terminal of the ultrasonic transducer. Firstly, a drive signal is output from the control unit's drive terminal to the controlled terminal of the switching unit, thereby supplying voltage to the ultrasonic transducer and LED module. Simultaneously, due to the LED connection, a voltage clamping effect is achieved in the circuit, providing a suitable DC operating voltage to the LED module. Therefore, the beauty and hairdressing control circuit provided by this technical solution only requires one drive serial port to drive the ultrasonic transducer and LED module, thus occupying less PCB space and reducing manufacturing costs.

[0019] This utility model also provides a beauty and hair styling device, which has the beauty and hair styling control circuit described in any of the above embodiments. The beauty and hair styling device is at least one of a hair straightener, a hair dryer, a curling iron, and a straightening comb. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This utility model provides a schematic diagram of a beauty and hairdressing control circuit module;

[0022] Figure 2 Circuit diagrams of various modules of another beauty and hairdressing control circuit provided by this utility model;

[0023] Figure 3The circuit diagram of each module of another beauty and hairdressing control circuit provided by this utility model.

[0024] Label Explanation:

[0025] 1. Control unit; 2. Switching unit; 21. Controlled end; 22. Input end; 23. Output end; 3. Ultrasonic transducer; 31. First positive electrode; 32. First negative electrode; 4. LED module; 41. First positive electrode; 42. Second negative electrode; 5. Detection unit; 10. Power supply. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0029] In this specification, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] like Figure 1 As shown, this utility model provides a beauty and hairdressing control circuit, including a control unit 1, a switching unit 2, an ultrasonic transducer 3, and an LED module 4. The input terminal 22 of the switching unit 2 is electrically connected to a power supply 10, the controlled terminal 21 of the switching unit 2 is electrically connected to the driving terminal of the control unit 1, the output terminal 23 of the switching unit 2 is electrically connected to the first positive terminal 31 of the ultrasonic transducer 3 and the second positive terminal 41 of the LED module 4, and the first negative terminal 32 of the ultrasonic transducer 3 and the second negative terminal 42 of the LED module 4 are grounded. It also includes a first diode, the anode of the first diode is electrically connected to the first negative terminal 32 of the ultrasonic transducer 3 and the second negative terminal 42 of the LED module 4, and the cathode of the first diode is electrically connected to the first positive terminal 31 of the ultrasonic transducer 3 and the second positive terminal 41 of the LED module 4.

[0032] The beauty and hairdressing control circuit of this embodiment includes a switching unit 2 and a first diode. First, a drive signal is output from the drive terminal of the control unit 1 to the controlled terminal 21 of the switching unit 2, thereby causing the voltage of the power supply 10 to be output to the ultrasonic transducer 3 and the LED module 4. At the same time, due to the connection of the first diode, the circuit acts as a voltage clamp, providing a suitable DC operating voltage for the LED module 4. Therefore, the beauty and hairdressing control circuit provided by this technical solution only needs to set up a single drive serial port to complete the operation of the ultrasonic transducer 3 and the LED module 4, thus occupying less PCB space and reducing manufacturing costs.

[0033] It should be noted that the first diode is Figure 1 The "D1" in the text.

[0034] Preferably, such as Figure 2As shown, the switching unit 2 includes a MOSFET, a first inductor, and a first capacitor. The first terminal of the first inductor is electrically connected to the power supply 10, and the second terminal of the first inductor is electrically connected to the first terminal of the first capacitor. The second terminal of the first capacitor is electrically connected to the negative terminal of the first diode, the first positive terminal 31 of the ultrasonic transducer 3, and the second positive terminal 41 of the LED module 4. The gate of the MOSFET is electrically connected to the driving terminal of the control unit 1, and the drain of the MOSFET is electrically connected to the third terminal of the first inductor. The source of the MOSFET is grounded, and the third terminal of the first inductor is located between the first terminal and the second terminal of the first inductor. Thus, the control unit 1 outputs a PWM signal at the driving terminal to turn on the MOSFET, enabling the power supply 10 to provide operating power to the ultrasonic transducer 3 and the LED module 4 through the resonant circuit composed of the first inductor and the first capacitor.

[0035] It should be noted that, as an optional solution, the driver is... Figure 2 The "T" in the text represents the power supply. Figure 2 In the "VDD", the first inductor is Figure 2 In the figure, "L1" refers to the first capacitor. Figure 2 In the diagram, "C1" refers to the first terminal of the first inductor. Figure 2 In the diagram, the "1" position of "L1" indicates that the second terminal of the first inductor is... Figure 2 In the diagram, the "2" position of "L1" indicates that the third terminal of the first inductor is... Figure 2 The "3" position of "L1" in the text.

[0036] Preferably, the switching unit 2 further includes a first resistor and a second resistor. The first end of the first resistor is electrically connected to the driving end of the control unit 1, the second end of the first resistor is electrically connected to the gate of the MOS transistor, the first end of the second resistor is electrically connected to the second end of the first resistor, and the second end of the second resistor is electrically connected to the source of the MOS transistor.

[0037] It should be noted that, as an optional solution, the first resistor is... Figure 2 In the text, "R1" refers to the second resistor. Figure 2 The “R2” in the text.

[0038] Preferably, such as Figure 2As shown, the beauty and hairdressing control circuit also includes a detection unit 5. The detection unit 5 includes a fourth resistor and a seventh resistor. The first end of the fourth resistor is electrically connected to the detection end of the control unit 1. The second end of the fourth resistor is electrically connected to the source of the MOS transistor, the anode of the first diode, the first cathode 32 of the ultrasonic transducer 3, the second cathode 42 of the LED module 4, and the first end of the seventh resistor. The second end of the seventh resistor is grounded. Thus, the control unit 1 acquires the voltage of the seventh resistor at the detection end, and through data processing, determines the operating frequency of the ultrasonic transducer 3, achieving real-time automatic frequency tracking. This allows the control unit 1 to output a suitable frequency PWM signal for the ultrasonic transducer 3 at the drive end, causing a specific frequency oscillation voltage across the ultrasonic transducer 3 to enable its operation.

[0039] It should be noted that, as an optional solution, the detection end is... Figure 2 In the figure, "A" represents the fourth resistor. Figure 2 In the text, "R4" refers to the seventh resistor. Figure 2 The "R7" in it.

[0040] Preferably, the detection unit 5 further includes a third resistor, a second capacitor, a third capacitor, and a fourth capacitor. The first end of the third resistor is electrically connected to the detection end of the control unit 1, the second end of the third resistor is electrically connected to the first end of the fourth resistor, the first ends of the second capacitor and the first ends of the third capacitor are electrically connected to the first end of the third resistor, the first end of the fourth capacitor is electrically connected to the second end of the third resistor, and the second ends of the second capacitor, the second ends of the third capacitor, and the third ends of the fourth capacitor are grounded.

[0041] It should be noted that, as an optional solution, the third resistor is... Figure 2 In the diagram, "R3" refers to the second capacitor. Figure 2 In the text, "C2" refers to the third capacitor. Figure 2 In the text, "C3" refers to the fourth capacitor. Figure 2 The "C4" in the text.

[0042] Preferably, the LED module 4 includes multiple light-emitting diodes. This results in better light emission.

[0043] Preferably, the LED module 4 includes multiple LED light components connected in parallel.

[0044] Preferably, as an optional embodiment, the LED lamp assembly includes a plurality of light-emitting diodes connected in series.

[0045] like Figure 3As shown, this embodiment provides a beauty and hairdressing control circuit, including a control unit 1, a switching unit 2, an ultrasonic transducer 3, and an LED module 4. The circuit is characterized in that: the input terminal 22 of the switching unit 2 is electrically connected to a power supply 10; the controlled terminal 21 of the switching unit 2 is electrically connected to the driving terminal of the control unit 1; the output terminal 23 of the switching unit 2 is electrically connected to the first positive electrode 31 of the ultrasonic transducer 3 and the second positive electrode 41 of the LED module 4; the first negative electrode 32 of the ultrasonic transducer 3 and the second negative electrode 42 of the LED module 4 are grounded; and the LED module 4 is connected in parallel with the ultrasonic transducer 3.

[0046] The LED module 4 includes multiple LED light components connected in parallel. Each LED light component includes a light-emitting diode. In one of the multiple LED light components, the positive terminal of the light-emitting diode is electrically connected to the first negative terminal 32 of the ultrasonic transducer 3, and the negative terminal is electrically connected to the first positive terminal 31 of the ultrasonic transducer 3.

[0047] The beauty and hairdressing control circuit of this embodiment includes a switching unit 2. The positive terminal of a light-emitting diode (LED) in an LED assembly is electrically connected to the first negative terminal of the ultrasonic transducer, and the negative terminal is electrically connected to the first positive terminal of the ultrasonic transducer. First, a drive signal is output from the drive terminal of the control unit 1 to the controlled terminal 21 of the switching unit 2, thereby causing the power supply 10 to output voltage to the ultrasonic transducer 3 and the LED module 4. Simultaneously, due to the connection of the LED, a voltage clamping effect is achieved in the circuit, providing a suitable DC operating voltage to the LED module 4. Therefore, the beauty and hairdressing control circuit provided by this technical solution only requires one drive serial port to complete the operation of the ultrasonic transducer 3 and the LED module 4, thus occupying less PCB space and reducing manufacturing costs.

[0048] In this embodiment, one LED light assembly is equivalent to the first diode in the previous embodiment. However, due to the need for standardization in production, this embodiment does not require additional materials for the first diode. It is only necessary to install and connect one LED light assembly in reverse to other LED light assemblies to achieve the same purpose and save materials.

[0049] This utility model also provides a beauty and hair styling device, which has the beauty and hair styling control circuit described in any of the above embodiments. The beauty and hair styling device is at least one of a hair straightener, a hair dryer, a curling iron, and a straightening comb.

[0050] It should be noted that the terms "horizontal" and "vertical" do not imply that the components must be absolutely horizontal or vertical, but rather that they can be slightly tilted. Similarly, the terms "parallel" and "perpendicular" do not imply that the components are absolutely parallel or perpendicular, but rather that they can have a certain angular deviation. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but rather that it can be slightly tilted. Furthermore, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0051] It is understood that the term "multiple" in this document means at least two, such as two, three, etc., unless otherwise specified. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices. The term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0052] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A beauty and hairdressing control circuit, comprising a control unit (1), a switching unit (2), an ultrasonic transducer (3), and an LED module (4), characterized in that: The input terminal (22) of the switching unit (2) is electrically connected to the power supply (10), the controlled terminal (21) of the switching unit (2) is electrically connected to the driving terminal of the control unit (1), the output terminal (23) of the switching unit (2) is electrically connected to the first positive terminal (31) of the ultrasonic transducer (3) and the second positive terminal (41) of the LED module (4), and the first negative terminal (32) of the ultrasonic transducer (3) and the second negative terminal (42) of the LED module (4) are grounded; it also includes a first diode, the positive terminal of the first diode is electrically connected to the first negative terminal (32) of the ultrasonic transducer (3) and the second negative terminal (42) of the LED module (4), and the negative terminal of the first diode is electrically connected to the first positive terminal (31) of the ultrasonic transducer (3) and the second positive terminal (41) of the LED module (4).

2. The beauty and hairdressing control circuit according to claim 1, characterized in that, The switching unit (2) includes a MOS transistor, a first inductor and a first capacitor. The first end of the first inductor is electrically connected to the power supply (10). The second end of the first inductor is electrically connected to the first end of the first capacitor. The second end of the first capacitor is electrically connected to the negative terminal of the first diode, the first positive terminal (31) of the ultrasonic transducer (3) and the second positive terminal (41) of the LED module (4). The gate of the MOS transistor is electrically connected to the driving terminal of the control unit (1). The drain of the MOS transistor is electrically connected to the third end of the first inductor. The source of the MOS transistor is grounded. The third end of the first inductor is located between the first end and the second end of the first inductor.

3. The beauty and hairdressing control circuit according to claim 2, characterized in that, The switching unit (2) further includes a first resistor and a second resistor. The first end of the first resistor is electrically connected to the driving end of the control unit (1), the second end of the first resistor is electrically connected to the gate of the MOS transistor, the first end of the second resistor is electrically connected to the second end of the first resistor, and the second end of the second resistor is electrically connected to the source of the MOS transistor.

4. A beauty and hairdressing control circuit according to claim 2, characterized in that, It also includes a detection unit (5), which includes a fourth resistor and a seventh resistor. The first end of the fourth resistor is electrically connected to the detection end of the control unit (1), and the second end of the fourth resistor is electrically connected to the source of the MOS transistor, the positive terminal of the first diode, the first negative terminal (32) of the ultrasonic transducer (3), the second negative terminal (42) of the LED module (4) and the first end of the seventh resistor. The second end of the seventh resistor is grounded.

5. A beauty and hairdressing control circuit according to claim 4, characterized in that, The detection unit (5) further includes a third resistor, a second capacitor, a third capacitor and a fourth capacitor. The first end of the third resistor is electrically connected to the detection end of the control unit (1). The second end of the third resistor is electrically connected to the first end of the fourth resistor. The first ends of the second capacitor and the third capacitor are electrically connected to the first end of the third resistor. The first end of the fourth capacitor is electrically connected to the second end of the third resistor. The second end of the second capacitor, the second end of the third capacitor and the third end of the fourth capacitor are grounded.

6. A beauty and hairdressing control circuit according to claim 1, characterized in that, The LED module (4) includes multiple light-emitting diodes.

7. A beauty and hairdressing control circuit according to claim 1, characterized in that, The LED module (4) includes multiple LED light components, which are connected in parallel.

8. A beauty and hairdressing control circuit according to claim 7, characterized in that, The LED light assembly includes multiple light-emitting diodes, which are connected in series.

9. A beauty and hairdressing control circuit, comprising a control unit (1), a switching unit (2), an ultrasonic transducer (3), and an LED module (4), characterized in that: The input terminal (22) of the switching unit (2) is electrically connected to the power supply (10), the controlled terminal (21) of the switching unit (2) is electrically connected to the driving terminal of the control unit (1), the output terminal (23) of the switching unit (2) is electrically connected to the first positive terminal (31) of the ultrasonic transducer (3) and the second positive terminal (41) of the LED module (4), the first negative terminal (32) of the ultrasonic transducer (3) and the second negative terminal (42) of the LED module (4) are grounded, and the LED module (4) is connected in parallel with the ultrasonic transducer (3); The LED module (4) includes multiple LED light components connected in parallel. Each LED light component includes a light-emitting diode. In one of the multiple LED light components, the positive terminal of the light-emitting diode in one LED light component is electrically connected to the first negative terminal (32) of the ultrasonic transducer (3), and the negative terminal is electrically connected to the first positive terminal (31) of the ultrasonic transducer (3).

10. A beauty and hair styling tool, characterized in that, The device has a beauty and hair styling control circuit according to any one of claims 1 to 8, wherein the beauty and hair styling device is at least one of a hair straightener, a hair dryer, a curling iron, and a straightening comb.

Images