Method for controlling the self-release of negative ions from a hair styling tool

Abstract

The application discloses a method for controlling the self-release of negative ions of a hairdressing tool, and comprises the following steps: starting the hairdressing tool by power, and driving the heating assembly to preheat by a main control module; after the preheating is completed, continuously collecting the action signals of the hairdressing tool by a sensing module, and judging whether the hairdressing tool is in a use state or an idle state according to the action signals in real time by the main control module; when the use state is judged, enabling the negative ion generator to release negative ions by the main control module; and when the idle state is judged, disabling the negative ion generator by the main control module. Effects: The application is suitable for electric heating hairdressing equipment such as a straightening iron, a curling iron, a straightening comb, a hot air comb and a hair dryer, can intelligently start and stop the negative ion generator, saves energy and protects hair, reduces the accumulation of metal charges, improves the use comfort and safety, does not start the negative ion generator in the preheating stage, can avoid the invalid consumption at low temperature, distinguishes the use state and the idle state by relying on the action sensing, synchronously controls the start and stop of the negative ion indicator light, and makes the man-machine interaction intuitive and clear.

Description

Technical Field

[0001] This invention relates to the field of intelligent control technology for hair styling tools, and in particular to a method for controlling the self-release of negative ions from hair styling tools. Background Technology

[0002] In existing technologies, various hair styling tools are usually equipped with negative ion generators to neutralize the static electricity generated during the hair drying process, reduce frizz, and make the hair smoother and more manageable.

[0003] However, as is the case, the configured negative ion generators usually only have a normally open or normally closed negative ion function.

[0004] The drawbacks of the always-on negative ion function are as follows: Firstly, after prolonged use, the released negative ions will accumulate in large quantities on the surface of the metal parts (such as the heating plate) of the hair styling tool, leading to the accumulation of high-voltage static electricity. Secondly, when the user accidentally touches the metal parts of the hair styling tool that are carrying high-voltage static electricity, a discharge circuit will be formed, causing the user to experience a noticeable tingling or electric shock sensation, which may pose a safety hazard during use.

[0005] The drawback of the normally closed negative ion function is that the negative ion generator set during the normally closed period cannot produce a negative ion hair care effect.

[0006] Therefore, how to accurately identify the user's actual usage intention and realize the "on-demand release" of negative ions is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0007] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, the objective of this invention is to propose a method for controlling the self-release of negative ions in hair styling tools.

[0008] To achieve one of the above objectives, the hair styling tool negative ion self-release control method according to an embodiment of the present invention is applicable to hair styling tools configured with a main control module, a heating component, a sensing module, and a negative ion generator, and includes the following steps: When the hair styling tool is powered on, the main control module drives the heating component to heat up and complete preheating. After preheating, the sensing module continuously collects the motion signals of the hair styling tool, and the main control module determines in real time whether the hair styling tool is in use or idle based on the motion signals. When the device is determined to be in use, the main control module enables the negative ion generator to continuously release negative ions; when the device is determined to be in an idle or static state, the main control module disables the negative ion generator to stop releasing negative ions.

[0009] In addition, the hair styling tool negative ion self-release control method according to the above embodiments of the present invention may also have the following additional technical features: According to one embodiment of the present invention, when the main control module enables the negative ion generator, it simultaneously controls the negative ion indicator light to illuminate; when the main control module disables the negative ion generator, it simultaneously controls the negative ion indicator light to extinguish.

[0010] According to one embodiment of the present invention, the hair styling tool is configured with a single sensor module; The main control module has a built-in idle timer. The main control module's determination mechanism is as follows: the sensor module collects the action signals of the hair styling tool in real time. When a valid action signal is collected, the idle timer is cleared and the timing is restarted. If the cumulative duration of the idle timer is less than the preset idle timer duration, the hair styling tool is determined to be in use. If the cumulative duration of the idle timer reaches the preset idle timer duration and no valid action signal is collected during the period, the hair styling tool is determined to be in an idle and static state.

[0011] According to one embodiment of the present invention, the hair styling tool is configured with a plurality of different types of the sensing modules; The main control module has a built-in idle timer. The determination mechanism of the main control module is as follows: each of the sensor modules independently and cyclically collects the action signals of the hair styling tool. When any of the sensor modules collects a valid action signal, the idle timer is triggered to be cleared and restarted. If the cumulative duration of the idle timer is less than the preset idle timer duration, the hair styling tool is determined to be in use. The hair styling tool is determined to be in an idle state only when all the sensor modules fail to collect a valid action signal within the preset idle time, and the cumulative duration of the idle timer reaches the preset idle time.

[0012] According to one embodiment of the present invention, the preset duration of the idle timer is 0s to 5s.

[0013] According to one embodiment of the present invention, the criterion for determining that the heating component has completed preheating is: the temperature of the heating component reaches a preset minimum hair care temperature threshold, wherein the preset minimum hair care temperature threshold is 120℃~200℃.

[0014] According to one embodiment of the present invention, the hair styling tool is a hair straightener, a curling iron, a straightening comb, a hot air comb, or a hair dryer.

[0015] According to one embodiment of the present invention, the sensing module includes one or more of the following: Hall sensor, gyroscope, tilt sensor, vibration sensor, ultrasonic sensor, pressure sensor, capacitive touch sensor, contact sensor, and limit switch.

[0016] According to one embodiment of the present invention, the method further includes the step of: During the entire process from the completion of the preheating of the hair styling tool to the power-off shutdown of the entire hair styling tool, each control step after the completion of preheating is executed in a loop, and the action signals of the hair styling tool are continuously collected. The output working state of the negative ion generator is dynamically switched according to the action signals.

[0017] According to one embodiment of the present invention, the method further includes the step of: When the hair styling tool is powered off and stopped, the main control module clears the timing data of the working timer and the idle timer.

[0018] The beneficial effects of this invention are: Firstly, the negative ion self-release control method for hair styling tools provided in this application, when implemented, involves operating the hair styling tool according to the method described above. This method can be applied to electric hair styling devices such as straighteners, curling irons, straightening combs, hot air combs, and hair dryers. During the user's hair styling process, this application will achieve good technical results: it can effectively and intelligently start and stop the release of negative ions from the negative ion generator, thereby achieving energy saving, reducing consumption, and improving hair care effects. It also reduces the on-time of the negative ion generator, thus reducing the accumulation of negative ions on the surface of the metal parts of the hair styling tool, thereby reducing charge accumulation and improving user comfort and safety.

[0019] Secondly, by not turning on the negative ion generator during the preheating stage of the heating component, it is possible to avoid the release of negative ions during low-temperature styling, which would fail to smooth frizz and close hair cuticles, thus improving the effectiveness of negative ion use. Furthermore, by using temperature as the standard for preheating completion, the control logic is precise, preventing the waste of negative ions before the hair care temperature is reached.

[0020] Thirdly, when the user operates the hair styling tool, the sensing module collects valid action signals, and the main control module determines that the hair styling tool is in use. It then activates the negative ion generator to release negative ions and simultaneously illuminates the negative ion indicator light. The user can intuitively confirm that the negative ion function is working normally through the illuminated negative ion indicator light, clearly knowing that negative ions are neutralizing static electricity and smoothing frizz in the hair, without needing additional operation to determine whether negative ions are being released, making the human-computer interaction intuitive and clear. When the user has not operated the tool for a long time, and the idle timer reaches a threshold, the main control module determines that the hair styling tool has entered an idle state, disables the negative ion generator to stop releasing negative ions, and simultaneously turns off the negative ion indicator light. The extinguishing of the negative ion indicator light quickly alerts the user that the negative ion release function has been turned off, allowing for a direct distinction between the idle and stopped states of the negative ion generator.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 The present invention describes the steps of the negative ion self-release control method for hair styling tools. Figure 1 ; Figure 2 The present invention describes the steps of the negative ion self-release control method for hair styling tools. Figure 2 ; Figure 3 The present invention describes the steps of the negative ion self-release control method for hair styling tools. Figure 3 ; Figure 4 The present invention describes the steps of the negative ion self-release control method for hair styling tools. Figure 4 ; The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "circumferential," and "radial," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0026] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the 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 the second feature includes the first feature 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" the second feature includes the first feature 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.

[0029] The following describes in detail, with reference to the accompanying drawings, the negative ion self-release control method for hair styling tools according to embodiments of the present invention. The present invention is applicable to hair styling tools configured with a main control module, a heating component, a sensing module, and a negative ion generator. The hair styling tools mentioned are common types of electric hair styling appliances such as hair straighteners, curling irons, straightening combs, hot air combs, or hair dryers.

[0030] Furthermore, the heating element, the sensing module, and the negative ion generator are all connected to the main control module via signal connections.

[0031] The heating element is used to heat the working surface of the hair styling tool that contacts the hair strands, so that it is preheated to a preset minimum hair care temperature threshold, and the hair strands are straightened or curled by relying on a constant high temperature. At the same time, the completion of preheating is a prerequisite for starting the automatic control logic of the negative ion generator, so as to avoid the release of negative ions at low temperature from affecting the hair care effect.

[0032] The sensing module is a sensor element used to capture the user's actions of operating hair styling tools. For example, it is used to capture the action signals generated by the user's actions such as holding the hair styling tool, opening and closing the hair straightener, swinging the hair styling tool, pressing the hair styling tool, and touching the hair styling tool in real time. It converts mechanical, posture, pressure, distance, capacitance changes, etc. into electrical signals and sends them to the main control module. This provides the main control module with a basis for judging whether the hair styling tool is in the user's use state or in an unattended and idle state.

[0033] The negative ion generator is controlled by the main control module to intermittently release negative ions; when the hair styling tool is determined to be in use, the negative ion generator continuously releases negative ions to neutralize static electricity in the hair and smooth frizz; when the hair styling tool is determined to be in an idle or resting state, the negative ion generator stops releasing negative ions.

[0034] Based on the above, referring to Figure 1 As shown, the self-release control method for negative ions in hair styling tools according to an embodiment of the present invention includes the following steps: S1. The hair styling tool is powered on and started, and the main control module drives the heating component to heat up and complete preheating; In step S1 described above, according to an embodiment of the present invention, the criterion for determining whether the heating component has completed preheating is: the temperature of the heating component reaches a preset minimum hair care temperature threshold, which is 120℃~200℃, and the preset minimum hair care temperature threshold is also the preheating completion temperature threshold. Within this temperature range, the hair cuticles open, and the penetration and absorption of negative ions are optimal.

[0035] In this preferred embodiment, the preset minimum temperature threshold for hair care is set to four levels: 120℃, 150℃, 170℃, or 200℃.

[0036] In some preferred embodiments, the preset minimum temperature threshold for hair care of the heating components of the hot air comb, curling iron, straightener, and high-power hair dryer used as hair styling tools is preferably set to 150°C.

[0037] Of course, the preset minimum temperature threshold for hair care of the heating component is not limited to 150℃. In specific implementation, it can be selected and changed according to actual usage needs. The setting of the preset minimum temperature threshold for hair care is feasible as long as it is in the temperature range of 120℃ to 200℃.

[0038] S2. After preheating, the sensing module continuously collects the motion signals of the hair styling tool, and the main control module determines in real time whether the hair styling tool is currently in use or idle based on the motion signals. It should be noted that the sensing module will only continuously collect the motion signals of the hair styling tool after the preheating is completed, so that the main control module can determine in real time whether the hair styling tool is currently in use or idle based on the motion signals.

[0039] In other words, during the preheating phase of the heating component, the negative ion generator is in a non-working state, and the main control module controls the negative ion generator to remain off during the preheating phase.

[0040] S3. When the hair styling tool is determined to be in use, the main control module enables the negative ion generator to continuously release negative ions; when the hair styling tool is determined to be in an idle state, the main control module disables the negative ion generator to stop releasing negative ions.

[0041] In other words, in step S3, when the hair styling tool is determined to be in use, the main control module will output a drive signal to turn on the negative ion generator so that the negative ion generator continuously releases negative ions; when the hair styling tool is determined to be in an idle state, the main control module will cut off the power supply circuit of the negative ion generator or turn off its high voltage output enable so that the negative ion generator stops releasing negative ions.

[0042] Based on the above, it is clear that in specific implementation, this application is mainly used as a method for controlling the self-release of negative ions in hair styling tools.

[0043] Specifically, when applying this application, the hair styling tools to be used are operated according to the method described above, such as hair straighteners, curling irons, straightening combs, hot air combs, and hair dryers. During the user's hair styling process, this application will have better technical effects: that is, it can better realize the intelligent start and stop of the negative ion generator's release of negative ions, so as to achieve energy saving and consumption reduction and improve hair care effect, and reduce the turn-on time of the negative ion generator, thereby reducing the large accumulation of negative ions on the surface of the metal parts of the hair styling tools, so as to reduce charge accumulation and improve the user's physical comfort and safety during use.

[0044] Furthermore, by not turning on the negative ion generator during the preheating stage of the heating component, the release of negative ions during low-temperature styling can be prevented from failing to smooth frizz and close hair cuticles, thus improving the effectiveness of negative ion use. The temperature is used as the standard for preheating completion, and the control logic is precise, preventing the waste of negative ions when the hair care temperature is not reached. The 120℃~200℃ range is a universally effective temperature range for hair styling, which meets the hair styling and care needs of the human body. The preset minimum hair care temperature threshold range is compatible with all hot styling tools.

[0045] Furthermore, through the above-mentioned optimized design, the whole constituted by this application is highly practical and has a good effect in use.

[0046] Furthermore, in a specific implementation according to an embodiment of the present invention, the hair styling tool is also equipped with a negative ion indicator light that is signal-connected to the main control module; when the main control module outputs a drive signal to turn on the negative ion generator, the negative ion indicator light is lit synchronously; when the main control module cuts off the power supply circuit of the negative ion generator or turns off its high-voltage output enable, the negative ion indicator light is turned off synchronously.

[0047] In other words, in this application, the comparison Figure 2 As shown, step S3 can also be replaced by step S3', that is: S3' When the hair styling tool is determined to be in use, the main control module enables the negative ion generator to continuously release negative ions and simultaneously controls the negative ion indicator light to illuminate; when the hair styling tool is determined to be in an idle state, the main control module disables the negative ion generator to stop releasing negative ions and simultaneously controls the negative ion indicator light to turn off.

[0048] Therefore, it can be clearly seen that the above-described steps can achieve the following technical effects: On one hand, when the user operates the hair styling tool, the sensing module collects valid action signals, and the main control module determines that the hair styling tool is in use. Then, the negative ion generator releases negative ions and simultaneously lights up the negative ion indicator light. The user can intuitively confirm that the negative ion function is working normally through the lit negative ion indicator light, and can clearly know that there are negative ions in the hair to neutralize static electricity and smooth frizz. There is no need for additional operation to determine whether negative ions are released, making the human-computer interaction intuitive and clear.

[0049] On the other hand, when the user does not operate for a long time and the idle timer reaches the threshold, the main control module determines that the hair styling tool has entered an idle state, disables the negative ion generator to stop it from releasing negative ions, and simultaneously turns off the negative ion indicator light. The turning off of the negative ion indicator light can quickly remind the user that the negative ion release function has been turned off. This can not only intuitively distinguish the idle and stopped state, but also make it easy for the user to notice in time that the negative ion generator has stopped working. At the same time, it can prevent the hair styling tool from continuously releasing negative ions when idle, causing the accumulation of negative ions and ozone, and greatly reduce power consumption.

[0050] Furthermore, through the above-mentioned optimized design, the overall performance of this application can be effectively improved.

[0051] Furthermore, in a specific implementation, as a first embodiment, the hair styling tool is configured with a single sensing module; The main control module has a built-in idle timer. The main control module's determination mechanism is as follows: the sensor module collects the action signals of the hair styling tool in real time. When a valid action signal is collected, the idle timer is cleared and the timing is restarted. If the cumulative duration of the idle timer is less than the preset idle timer duration, the hair styling tool is determined to be in use. If the cumulative duration of the idle timer reaches the preset idle timer duration and no valid action signal is collected during the period, the hair styling tool is determined to be in an idle and static state.

[0052] Regarding the above, this first embodiment is adapted to hair styling tools with only a single sensor module. The main control module integrates the idle timer, and the complete determination process is as follows: After preheating, each of the sensor modules continuously and cyclically collects the overall motion signals of the hair styling tool and uploads them to the main control module in real time. Each time the main control module receives a valid action signal (the valid action signal refers to a sensing signal that reaches the signal threshold and is determined to be a user operating the hair styling tool), it will immediately reset the idle timer value to zero, and the idle timer will start accumulating time again from zero. The timing determination logic is as follows: When the accumulated idle timer duration is less than the preset idle timer duration, the hair styling tool is determined to be in use, and the negative ion generator is continuously turned on. If the accumulated idle timer reaches the preset idle timer duration and no valid action signal is collected during the entire period, the hair styling tool is determined to be in an idle and static state, and the negative ion generator is immediately turned off.

[0053] Clearly, the technical effect of the first embodiment described above is as follows: On the one hand, using a single sensor module can be adapted to low-cost entry-level hair styling tools, the control logic is simple, which can reduce the computing load of the main control module and reduce the hardware cost of the hair styling tool-related products.

[0054] On the other hand, the idle time preset duration is used as the idle judgment standard, the recognition logic is stable, the timer can be reset with a single action, and the negative ion generator can be kept on with slight operation, which is suitable for users' intermittent hair styling habits.

[0055] Furthermore, in a specific implementation, as a second embodiment, the hair styling tool is configured with multiple different types of the aforementioned sensing modules; The main control module has a built-in idle timer. The determination mechanism of the main control module is as follows: each of the sensor modules independently and cyclically collects the action signals of the hair styling tool. When any of the sensor modules collects a valid action signal, the idle timer is triggered to be cleared and restarted. If the cumulative duration of the idle timer is less than the preset idle timer duration, the hair styling tool is determined to be in use. The hair styling tool is determined to be in an idle state only when all the sensor modules fail to collect a valid action signal within the preset idle time, and the cumulative duration of the idle timer reaches the preset idle time.

[0056] Regarding the above, this second embodiment is adapted to mid-to-high-end hair styling tools equipped with two or more different types of sensor modules. The idle timer determination logic is upgraded to joint identification by multiple sensor modules. The complete determination process is as follows: After preheating, all the sensor modules independently and in parallel collect the overall motion signals of the hair styling tool and upload them to the main control module in real time. When any of the sensor modules acquires a valid action signal, the idle timer will be immediately reset to start accumulating time again. The timing determination logic is as follows: When the accumulated idle timer duration is less than the preset idle timer duration, the hair styling tool is determined to be in use, and the negative ion generator is continuously turned on. If none of the sensor modules collect a valid action signal within the full idle time preset duration, and the cumulative duration of the idle timer reaches the idle time preset duration, then the hair styling tool is determined to be in an idle state, and the negative ion generator is immediately turned off.

[0057] Clearly, the technical effect of the second embodiment described above is as follows: On the one hand, the complementary acquisition of motion signals by multiple sensor modules can eliminate the blind spots of a single sensor module: for example, when the gyroscope fails to recognize tilt, the handle touch sensor, vibration sensor, etc. can all independently identify user operations, greatly reducing the probability of misjudgment. On the other hand, the idle condition is strict. The negative ion generator is only turned off when the hair styling tool is completely still and without any operation, which avoids accidentally turning off the negative ion generator during a brief pause in the styling process, so that the hair care function is continuously stable. In addition, the multi-action signal redundancy recognition can also improve the reliability of the status detection of the hair styling tool and adapt to the high-precision use requirements of high-end hair styling tools.

[0058] Furthermore, in this technical solution, for the first embodiment and the second embodiment, the idle time preset duration is set to 0s to 5s, and preferably set to three levels: 0s, 2s and 5s. Manufacturers can burn this information into the main control module according to the hair styling tool product model.

[0059] For example, in a small, portable hair straightener used as a hair styling tool, the idle timer preset duration can preferably be set to 2 seconds to quickly shut off the negative ion generator during idle periods, making it suitable for short-term, intermittent use scenarios. For example, in the case of a high-powered hot air comb and hair dryer used as hair styling tools, the idle timer preset duration can preferably be set to 5 seconds to allow sufficient rest buffer time so that the negative ion generator will not be turned off immediately when hair styling is paused.

[0060] Of course, the preset idle timer duration set above is not limited to 0s, 2s or 5s. In specific implementation, it can be selected and changed according to actual usage needs. The setting of the relevant idle timer preset duration is feasible as long as it is within the time range of 0s to 5s.

[0061] In this regard, it can be clearly stated that the preset idle time duration within this range can be used to filter out momentary hand tremors or short pauses by the user, in order to ensure the stability of the judgment.

[0062] Furthermore, in the technical solution of this application, according to an embodiment of the present invention, the sensing module includes one or more of the following: Hall sensor, gyroscope, tilt sensor, vibration sensor, ultrasonic sensor, pressure sensor, capacitive touch sensor, contact sensor, and limit switch.

[0063] If the hair styling tool is equipped with a single sensor module, the determination mechanism described in the first embodiment is used to identify whether the hair styling tool is in use or idle. If the hair styling tool is equipped with two or more different types of the sensing modules, the determination mechanism described in the second embodiment is used to identify whether the hair styling tool is in use or idle. Furthermore, the installation locations of each type of sensor module, the types of action signals acquired, and the compatible models are as follows: The Hall sensor is adapted to the hair straightener and installed on the hair straightener's straightener plate pivot or hair straightener plate clip position to collect the mechanical displacement magnetic signal of the straightener plate opening and closing. The gyroscope and tilt sensor are built into the hair styling tool and are used to collect spatial posture change signals of the hair styling tool as it swings up and down, flips, and tilts to create a style. The vibration sensor is built into the hair styling tool and is used to collect minute vibration signals generated by the machine body during combing, pulling or curling of hair. The ultrasonic sensor is located at the front end of the hair styling tool and is used to detect distance sensing signals generated when the hair in front of the hair styling tool or when a person approaches. The pressure sensor is installed in two ways: one is in the handle grip area of ​​the hair styling tool to collect the pressure change signal generated by the user's hand pressing, and it is compatible with hair straighteners, curling irons, straightening combs, hot air combs and hair dryers; the other is only compatible with hair straighteners and is installed on the clamping surface of the straightener plate to collect the pressure change signal of the straightener plate clamping the hair. The capacitive touch sensor and contact sensor are set in the handle grip area of ​​the hair styling tool to collect capacitive sensing signals generated by human skin touch and grip contact, and are compatible with hair straighteners, curling irons, straightening combs, hot air combs and hair dryers. The limit switch is adapted to the hair straightener and installed on the hair straightener's straightener plate pivot or hair straightener plate clip position to collect mechanical trigger on / off signals when the hair straightener plate opens and closes.

[0064] Therefore, in both the first and second embodiments described above, the determination of valid action signals can be performed according to the following implementation examples: 1) Hall sensor (adapted to the hair straightener used as the hair styling tool); The Hall sensor is installed on the hair straightener's hair straightener plate pivot or hair straightener plate clip position to collect the mechanical displacement magnetic signal of the hair straightener plate opening and closing.

[0065] In this embodiment, the valid action signal can be defined as: a jump in the output level of the Hall sensor (from high to low or from low to high), and a change in magnetic field strength ΔB ≥ 5mT (milltesla), or a corresponding change in the opening / closing angle of the hair straightener ≥ 3°, with the duration of this state ≥ 20ms (confirmed by software debouncing). When the main control module detects a valid action signal that meets the above conditions, it determines that a valid opening / closing action of the hair straightener has occurred, indicating that the hair styling tool is in use. The main control module then triggers the idle timer to be reset to restart the timing.

[0066] 2) Gyroscope and tilt sensor (universally applicable to all types of hair styling tools); The gyroscope and tilt sensor are built into the hair styling tool to collect spatial posture change signals of the hair styling tool as it swings up and down, flips, and tilts to create a style.

[0067] In this embodiment, the effective action signal can be defined as: the angular velocity of the hair styling tool around any of the X, Y, and Z axes is ≥15° / s, or the tilt angle change of the hair styling tool relative to the direction of gravity is ≥5°, and the duration of this attitude change is ≥100ms. The main control module samples the attitude data at a frequency of 50Hz. When three consecutive sampling points meet the above threshold conditions, it is determined to be an effective action signal, that is, the hair styling tool is determined to be in use. The main control module then triggers the idle timer to be reset to start accumulating time again.

[0068] 3) Vibration sensor (universally applicable to all types of hair styling tools); The vibration sensor is built into the hair styling tool and is used to collect minute vibration signals generated by the machine body during combing, pulling, or curling of hair.

[0069] In this embodiment, the effective motion signal can be defined as: the acceleration amplitude detected by the vibration sensor is ≥0.5g (gravitational acceleration), and the main frequency of the vibration signal falls within the range of 20Hz to 500Hz (this frequency band covers typical combing / strapping vibrations), while the width of the vibration pulse is ≥50ms. The main control module identifies such effective vibrations by performing high-pass filtering and peak detection on the vibration signal.

[0070] Upon confirmation of the aforementioned valid action signal, the hair styling tool is determined to be in use, and the main control module immediately triggers the idle timer to be reset to start accumulating time again.

[0071] 4) Ultrasonic sensor; Method 1 (Universal to all types of hair styling tools): The ultrasonic sensor is set at the front end of the hair styling tool to detect the distance sensing signal generated when the hair in front of the hair styling tool or the human body approaches.

[0072] In this embodiment, the effective motion signal can be defined as: a detected distance change Δd ≥ 3cm, or a detection distance changing from greater than 10cm to less than 10cm (approaching a hair / human body), or changing from less than 10cm to greater than 10cm (moving away), and the distance value maintaining the same trend in three consecutive samples. This setting is used to distinguish between the state of the hair styling tool being moved in the hand and being stationary on the table.

[0073] Method 2 (for hair straighteners only): The ultrasonic sensor is installed on the clamping surface of the hair straightener plate to detect the opening and closing of the hair straightener plate. When the hair straightener plate is detected to be clamping the hair bundle, it is also determined to be a valid action signal.

[0074] The moment the above-mentioned valid action signal is confirmed, the hair styling tool is determined to be in use, and the main control module immediately triggers the idle timer to be reset to start accumulating time again.

[0075] 5) Pressure sensor (dual-mode deployment); The pressure sensor is deployed in two ways: Method 1 (Universal for all types of hair styling tools): Located in the handle grip area of ​​the hair styling tool, it is used to collect the pressure change signal generated by the user's hand gripping and pressing, and is compatible with hair straighteners, curling irons, straightening combs, hot air combs and hair dryers.

[0076] In this embodiment, the effective action signal can be defined as: the detected change in hand grip pressure ΔP ≥ 50g, or the stable pressure value ≥ 100g, and the duration ≥ 200ms.

[0077] This signal is used to confirm whether the user is holding the hair styling tool. The moment the above valid action signal is confirmed, the hair styling tool is determined to be in use, and the main control module then triggers the idle timer to be reset to start accumulating time again.

[0078] Method 2 (for hair straighteners only): This method is set on the clamping surface of the hair straightener's plates to collect the pressure change signal when the straightener clamps the hair strands.

[0079] In this embodiment, the effective action signal can be defined as: the detected clamping pressure is ≥200g, the pressure rise rate dP / dt is ≥50g / ms, and the clamping state lasts for ≥300ms.

[0080] This signal is used to directly confirm whether there are hair strands between the hair straightener plates. The moment the above effective action signal is confirmed, the hair styling tool is determined to be in use, and the main control module then triggers the idle timer to be reset to start accumulating time again.

[0081] 6) Capacitive touch sensors and contact sensors (universally applicable to all types of hair styling tools) The capacitive touch sensor and contact sensor are set in the handle grip area of ​​the hair styling tool to collect capacitive sensing signals generated by human skin touch and grip contact, and are compatible with hair straighteners, curling irons, straightening combs, hot air combs and hair dryers. In this embodiment, the effective action signal can be defined as: a detected capacitance change ΔC ≥ 2pF, and a capacitance value deviating from the baseline value by more than 5pF, while the touch state lasts for ≥ 100ms. This design can effectively eliminate false triggering caused by water droplets splashing or contact with insulating objects.

[0082] Upon confirmation of the aforementioned valid action signal, the hair styling tool is determined to be in use, and the main control module immediately triggers the idle timer to be reset to start accumulating time again.

[0083] 7) Limit switch (for hair straighteners only) The limit switch is adapted to the hair straightener and installed on the hair straightener's straightener plate pivot or hair straightener plate clip position to collect mechanical trigger on / off signals when the hair straightener plate opens and closes.

[0084] In this embodiment, the effective action signal can be defined as: the mechanical contact of the limit switch undergoes a state transition (from closed to open, or from open to closed), and this state is stably maintained for ≥30ms after software debouncing. This signal serves as a low-cost alternative to Hall sensors or a redundant backup solution.

[0085] Upon confirmation of the aforementioned valid action signal, the hair styling tool is determined to be in use, and the main control module immediately triggers the idle timer to be reset to start accumulating time again.

[0086] Therefore, it can be clarified that the comprehensive judgment logic of the main control module for each of the aforementioned sensing modules is as follows: The main control module filters, compares thresholds, and determines durations of the raw signals collected by each sensor module according to the aforementioned quantification standards. Only when the signal is confirmed to meet the definition of a "valid action signal" is the idle timer reset. Especially in the fusion judgment mode of multiple sensor modules, if any sensor module detects the corresponding valid action signal, it is sufficient to maintain the system's determination of the "usage status," thereby significantly improving the system's anti-interference capability and judgment reliability in complex usage environments.

[0087] Furthermore, according to one embodiment of the present invention, in contrast... Figure 3 and Figure 4 As shown, step S3 or step S3' is followed by the following step: S4. During the entire process from the completion of the preheating of the hair styling tool to the power-off shutdown of the entire hair styling tool, the control steps of step S2 and step S3 (or step S3') after the completion of preheating are executed cyclically, and the action signals of the hair styling tool are continuously collected, and the output working state of the negative ion generator is dynamically switched according to the action signals.

[0088] Therefore, it can be understood that through the optimized design of the above steps, the hair styling tool described in this application can monitor the action signal of the hair styling tool in real time throughout the entire working process, and the negative ion generator can be started and stopped at any time during the hair styling process, with no detection time interval and no response delay. Furthermore, the above-mentioned loop logic simplifies the segmented control program of the main control module, eliminating the need for multiple triggers of the start-up detection, thus ensuring stable operation of the entire program. As long as the hair styling tool is powered on and heated, it continuously possesses the automatic negative ion release control function, enabling the entire hair styling cycle to effectively achieve energy saving and protect the entire hair styling tool.

[0089] Furthermore, according to one embodiment of the present invention, the comparison continues. Figure 3 and Figure 4 As shown, step S4 is followed by the following step: S5. When the hair styling tool is powered off and stopped, the main control module clears the timing data of the idle timer.

[0090] Therefore, by resetting the idle timer when the hair styling tool is powered off, this invention effectively prevents the possibility of data corruption in the idle timer after abnormal power outages or prolonged storage. This ensures that each startup of the hair styling tool represents a completely new negative ion release control cycle, thus guaranteeing the rigor and repeatability of the control logic.

[0091] Other embodiments, etc., will not be described here.

[0092] In summary, the negative ion self-release control method for hair styling tools provided in this application, when implemented, allows for the operation of the hair styling tools according to the aforementioned method. For example, when applied to electric hair styling devices such as straighteners, curling irons, straightening combs, hot air combs, and hair dryers, this method provides good technical results during the user's hair styling process. Specifically, it effectively enables intelligent start-stop of the negative ion generator's release of negative ions, achieving energy saving, reduced consumption, and improved hair care effects. It also reduces the on-time of the negative ion generator, thereby reducing the accumulation of negative ions on the surface of the metal parts of the hair styling tool, thus reducing charge accumulation and improving user comfort and safety.

[0093] Furthermore, by not turning on the negative ion generator during the preheating stage of the heating component, the release of negative ions during low-temperature styling can be prevented from failing to smooth frizz and close hair cuticles, thus improving the effectiveness of negative ion use. Moreover, by using temperature as the standard for preheating completion, the control logic is precise, preventing the waste of negative ions when the hair care temperature has not been reached.

[0094] Simultaneously, when the user operates the hair styling tool, the sensing module collects valid action signals, and the main control module determines that the hair styling tool is in use. It then activates the negative ion generator to release negative ions and simultaneously illuminates the negative ion indicator light. The user can intuitively confirm that the negative ion function is working normally through the illuminated negative ion indicator light, clearly knowing that negative ions are neutralizing static electricity and smoothing frizz in the hair, without needing additional operation to determine whether negative ions are being released, making the human-computer interaction intuitive and clear. When the user has not operated the tool for a long time, and the idle timer reaches a threshold, the main control module determines that the hair styling tool has entered an idle state, disables the negative ion generator to stop releasing negative ions, and simultaneously turns off the negative ion indicator light. The extinguishing of the negative ion indicator light quickly alerts the user that the negative ion release function has been turned off, allowing for a direct distinction between the idle and stopped states of the negative ion generator.

[0095] Furthermore, the negative ion self-release control method for hair styling tools provided in this application is indeed highly practical and has excellent effects, which makes this application inherently valuable for market promotion and will certainly be very popular and effectively popularized.

[0096] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0097] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A method for controlling the self-release of negative ions in hair styling tools, applicable to hair styling tools equipped with a main control module, a heating element, a sensing module, and a negative ion generator, characterized in that, Includes the following steps: When the hair styling tool is powered on, the main control module drives the heating component to heat up and complete preheating. After preheating, the sensing module continuously collects the motion signals of the hair styling tool, and the main control module determines in real time whether the hair styling tool is in use or idle based on the motion signals. When the device is determined to be in use, the main control module enables the negative ion generator to continuously release negative ions; when the device is determined to be in an idle or static state, the main control module disables the negative ion generator to stop releasing negative ions.

2. The method for controlling the self-release of negative ions in hair styling tools according to claim 1, characterized in that, When the main control module enables the negative ion generator, it simultaneously controls the negative ion indicator light to illuminate; when the main control module disables the negative ion generator, it simultaneously controls the negative ion indicator light to turn off.

3. The method for controlling the self-release of negative ions in hair styling tools according to claim 1, characterized in that, The hair styling tool is equipped with a single sensor module; The main control module has a built-in idle timer. The main control module's determination mechanism is as follows: the sensor module collects the action signals of the hair styling tool in real time. When a valid action signal is collected, the idle timer is cleared and the timing is restarted. If the cumulative duration of the idle timer is less than the preset idle timer duration, the hair styling tool is determined to be in use. If the cumulative duration of the idle timer reaches the preset idle timer duration and no valid action signal is collected during the period, the hair styling tool is determined to be in an idle and static state.

4. The method for controlling the self-release of negative ions in hair styling tools according to claim 1, characterized in that, The hair styling tool is equipped with multiple different types of the aforementioned sensor modules; The main control module has a built-in idle timer. The determination mechanism of the main control module is as follows: each of the sensor modules independently and cyclically collects the action signals of the hair styling tool. When any of the sensor modules collects a valid action signal, the idle timer is triggered to be cleared and restarted. If the cumulative duration of the idle timer is less than the preset idle timer duration, the hair styling tool is determined to be in use. The hair styling tool is determined to be in an idle state only when all the sensor modules fail to collect a valid action signal within the preset idle time, and the cumulative duration of the idle timer reaches the preset idle time.

5. The method for controlling the self-release of negative ions in hair styling tools according to claim 3 or 4, characterized in that, The preset duration of the idle timer is 0s to 5s.

6. The method for controlling the self-release of negative ions in hair styling tools according to claim 1, characterized in that, The criterion for determining whether the heating component has completed preheating is that the temperature of the heating component reaches the preset minimum temperature threshold for hair care, which is 120℃~200℃.

7. The method for controlling the self-release of negative ions in hair styling tools according to claim 1, characterized in that, The hair styling tools mentioned are hair straighteners, curling irons, straightening combs, hot air combs, or hair dryers.

8. The method for controlling the self-release of negative ions in hair styling tools according to claim 1, characterized in that, The sensing module includes one or more of the following: Hall sensor, gyroscope, tilt sensor, vibration sensor, ultrasonic sensor, pressure sensor, capacitive touch sensor, contact sensor, and limit switch.

9. The method for controlling the self-release of negative ions in hair styling tools according to claim 3 or 4, characterized in that, It also includes the following steps: During the entire process from the completion of the preheating of the hair styling tool to the power-off shutdown of the entire hair styling tool, each control step after the completion of preheating is executed in a loop, and the action signals of the hair styling tool are continuously collected. The output working state of the negative ion generator is dynamically switched according to the action signals.

10. The method for controlling the self-release of negative ions in hair styling tools according to claim 9, characterized in that, It also includes the following steps: When the hair styling tool is powered off and stopped, the main control module clears the timing data of the idle timer.

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