Anti-overheat control method and system of hair dryer
Patent Information
- Application Number
- CN202510377998.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-09-29
AI Technical Summary
传统的吹风机在使用过程中逐渐暴露出一些问题，尤其是与过热相关的安全隐患和发质损伤问题，在使用吹风机过程中容易使头发受到高温和强风的双重损伤，高温会使头发的毛鳞片受损，导致头发干枯、分叉、失去光泽，长期使用还会加剧脱发问题
[0020]本发明有益效果：本吹风机的防过热控制系统通过实时监测吹风机的吹风位置与障碍物（如头发、头皮）之间的距离以及吹风机的运动状态，系统能够根据这些信息动态调整吹风风速和加热温度，例如，当吹风机距离头发过近时，第一风速调节计算系统会根据安全距离标准与实际距离的差值计算出第一防过热吹风风速，并将其与预设吹风风速等进行比较，选择最小的风速作为最终的防过热吹风风速执行，这样可以避免局部头发因长时间暴露在高温下而受损，减少头发干枯、分叉、断裂等问题，同时也能降低对头皮的热刺激，防止头皮烫伤，当吹风机在某一位置静置时间过长时，第二风速调节计算系统会根据静置时间与安全时间标准的差值计算第二防过热吹风风速，并将其与第一防过热吹风风速和预设吹风风速进行比较，选择最小的风速作为最终的防过热吹风风速执行，进一步预防局部过热，这种动态调整机制能够确保吹风过程中的热量分布更加均匀，有效保护头发和头皮的健康。
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Figure CN122837538A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of hair dryer control system technology, and in particular to a method and system for preventing overheating in a hair dryer. Background Technology
[0002] Hair dryers, as a common household appliance, are widely used in daily life to quickly dry hair or perform simple styling. Their basic principle is to use a motor to drive the fan blades to rotate, while using an electric heating wire to heat the air, thereby generating hot air to accelerate the evaporation of moisture. However, with the improvement of people's living standards and the increase in demand for hair care. Traditional hair dryers have gradually revealed some problems during use, especially safety hazards and hair damage related to overheating. Hair dryers can easily cause hair to suffer from the dual damage of high temperature and strong airflow. High temperature can damage the hair cuticle, leading to dry, split, and dull hair. Long-term use can also exacerbate hair loss problems. Summary of the Invention
[0003] Based on the technical problems existing in the background art mentioned above, the present invention proposes a method and system for preventing overheating of a hair dryer, and the technical solution adopted is as follows: An overheat protection control system for a hair dryer, the system comprising: Command system: Executes the preset state command of the hair dryer, the preset state command of the hair dryer includes at least the preset airflow speed and the preset heating temperature of the hair dryer; Data acquisition system: acquires the real-time status information of the hair dryer, the real-time status information including at least the real-time motion status of the hair dryer and the distance between the real-time blowing position of the hair dryer and the obstacle; Temperature and speed feedback system: Based on the real-time movement status of the hair dryer and the distance between the real-time blowing position of the hair dryer and the obstacle, the system performs anti-overheating adjustment on the basis of the preset blowing speed and preset heating temperature of the hair dryer. The anti-overheating adjustment method is at least to coordinate and change the blowing speed and heating temperature of the hair dryer.
[0004] Preferably, the temperature and velocity feedback system includes: First wind speed adjustment calculation system: If the drying distance of the hair dryer exceeds the limit, the first anti-overheating wind speed of the hair dryer is calculated based on the difference between the safety distance standard and the distance between the real-time blowing position of the hair dryer and the obstacle. Second wind speed adjustment calculation system: If the drying time of the hair dryer exceeds the limit, the second anti-overheating wind speed of the hair dryer is calculated based on the difference between the static time of the real-time motion state of the hair dryer and the safe time standard. Wind speed coordination system: Select the option with the lowest wind speed among the preset blowing wind speed, the first anti-overheat blowing wind speed and the second anti-overheat blowing wind speed of the hair dryer as the final anti-overheat blowing wind speed and execute it. Temperature and speed coordination system: Substitute the final anti-overheating blower speed into the first function to obtain the anti-overheating heating temperature and execute it. The first function is:
[0005] Where v is the final anti-overheating blower speed; T represents the overheat protection heating temperature; This is the preset heating temperature for the hair dryer; The ambient temperature; k is the proportionality coefficient between wind speed and temperature; α is the nonlinear coefficient of wind speed; β is the safety factor.
[0006] Preferably, the first wind speed regulation calculation system includes: Distance measurement system: compares the distance between the real-time blowing position of the hair dryer and the obstacle with the size of the safe distance standard; First temperature and speed direct control system: If the distance between the real-time blowing position of the blower and the obstacle is greater than the safe distance standard, then the preset blowing speed and preset heating temperature of the blower are executed. First wind speed calculation system: If the distance between the real-time blowing position of the blower and the obstacle is less than the safe distance standard, then the difference between the real-time safe distance standard and the distance between the real-time blowing position of the blower and the obstacle is substituted into the second function to obtain the first anti-overheating blower wind speed. The second function is:
[0007] in, The primary airflow speed is set to prevent overheating. d represents the distance between the real-time blowing position of the hair dryer and the obstacle; As a standard for safe distance; The preset airflow speed for the hair dryer; This is the linear proportionality coefficient between distance and wind speed; α is a non-linear adjustment coefficient; This represents the minimum wind speed. This represents the upper limit of wind speed; γ represents the environmental factor.
[0008] Preferably, the second wind speed regulation calculation system includes: Time measurement system: compares the static time of the real-time motion state of the hair dryer with the magnitude of the safe time standard; Second temperature and speed direct control system: If the static time of the real-time blowing state of the hair dryer is less than the safety time standard, then the preset blowing speed and preset heating temperature of the hair dryer are executed. First wind speed calculation system: If the static time of the real-time blowing state of the hair dryer is greater than the safety time standard, then the difference between the static time of the real-time blowing state of the hair dryer and the safety time standard is substituted into the third function to obtain the second anti-overheating blowing wind speed, wherein the third function is:
[0009] in, The second anti-overheating airflow speed; t represents the real-time settling time of the hair dryer; For safe time standards; The preset airflow speed for the hair dryer; This is the linear proportionality coefficient between settling time and wind speed; β is a nonlinear adjustment coefficient; This represents the minimum wind speed. This represents the upper limit of wind speed; γ represents the environmental factor.
[0010] Preferably, S3 further includes issuing an overheating warning if either the drying distance or the drying time of the hair dryer exceeds the limit, wherein the overheating warning is any one or more of vibration prompts, display prompts, or sound prompts.
[0011] A method corresponding to an overheat protection control system for a hair dryer, the method comprising: S1: Execute the preset state command of the hair dryer, the preset state command of the hair dryer includes at least the preset airflow speed and the preset heating temperature of the hair dryer; S2: Obtain the real-time status information of the hair dryer, the real-time status information including at least the real-time motion status of the hair dryer and the distance between the real-time blowing position of the hair dryer and the obstacle; S3: Based on the real-time movement state of the hair dryer and the distance between the real-time blowing position of the hair dryer and the obstacle, anti-overheating adjustment is performed on the basis of the preset blowing speed and preset heating temperature of the hair dryer. The anti-overheating adjustment method is at least to coordinately change the blowing speed and heating temperature of the hair dryer.
[0012] Preferably, S3 includes: S31: If the drying distance of the hair dryer exceeds the limit, the first anti-overheating blowing speed of the hair dryer is calculated based on the difference between the safety distance standard and the distance between the real-time blowing position of the hair dryer and the obstacle. S32: If the drying time of the hair dryer exceeds the limit, the second anti-overheating airflow speed of the hair dryer is calculated based on the difference between the static time of the real-time motion state of the hair dryer and the safe time standard. S33: Select the option with the lowest wind speed among the preset wind speed of the hair dryer, the first anti-overheating wind speed, and the second anti-overheating wind speed as the final anti-overheating wind speed and execute it. S34: Substitute the final anti-overheating blower speed into the first function to obtain the anti-overheating heating temperature and execute it. The first function is:
[0013] Where v is the final anti-overheating blower speed; T represents the overheat protection heating temperature; This is the preset heating temperature for the hair dryer; The ambient temperature; k is the proportionality coefficient between wind speed and temperature; α is the nonlinear coefficient of wind speed; β is the safety factor.
[0014] Preferably, the 31 includes: S311: Compare the distance between the real-time blowing position of the hair dryer and the obstacle with the size of the safe distance standard; S312: If the distance between the real-time blowing position of the hair dryer and the obstacle is greater than the safe distance standard, then the preset blowing speed and preset heating temperature of the hair dryer are executed. S313: If the distance between the real-time blowing position of the hair dryer and the obstacle is less than the safety distance standard, then the difference between the real-time safety distance standard and the distance between the real-time blowing position of the hair dryer and the obstacle is substituted into the second function to obtain the first anti-overheating blowing speed. The second function is:
[0015] in, The primary airflow speed is set to prevent overheating. d represents the distance between the real-time blowing position of the hair dryer and the obstacle; As a standard for safe distance; The preset airflow speed for the hair dryer; This is the linear proportionality coefficient between distance and wind speed; α is a non-linear adjustment coefficient; This represents the minimum wind speed. This represents the upper limit of wind speed; γ represents the environmental factor.
[0016] Preferably, S32 includes: S321: Compare the static time of the real-time motion state of the hair dryer with the magnitude of the safe time standard; S322: If the static time of the real-time blowing state of the hair dryer is less than the safe time standard, then the preset blowing speed and preset heating temperature of the hair dryer are executed.
[0017] S323: If the static time of the real-time blowing state of the hair dryer is greater than the safety time standard, then the difference between the static time of the real-time blowing state of the hair dryer and the safety time standard is substituted into the third function to obtain the second anti-overheating blowing speed, wherein the third function is:
[0018] in, The second anti-overheating airflow speed; t represents the real-time settling time of the hair dryer; For safe time standards; The preset airflow speed for the hair dryer; This is the linear proportionality coefficient between settling time and wind speed; β is a nonlinear adjustment coefficient; This represents the minimum wind speed. This represents the upper limit of wind speed; γ represents the environmental factor.
[0019] Preferably, S3 further includes issuing an overheating warning if either the drying distance or the drying time of the hair dryer exceeds the limit, wherein the overheating warning is any one or more of vibration prompts, display prompts, or sound prompts.
[0020] The beneficial effects of this invention are as follows: The overheat protection control system of this hair dryer monitors the distance between the hair dryer's blowing position and obstacles (such as hair or scalp) and the hair dryer's movement status in real time. Based on this information, the system can dynamically adjust the blowing speed and heating temperature. For example, when the hair dryer is too close to the hair, the first wind speed adjustment calculation system calculates a first anti-overheat blowing speed based on the difference between the safe distance standard and the actual distance, compares it with preset blowing speeds, and selects the minimum wind speed as the final anti-overheat blowing speed. This prevents localized hair from being exposed to heat for extended periods. Damage caused by high temperatures is reduced, minimizing problems such as dryness, split ends, and breakage. It also reduces heat stimulation to the scalp, preventing burns. When the hairdryer remains stationary in one position for too long, the second wind speed adjustment calculation system calculates a second anti-overheating wind speed based on the difference between the stationary time and the safe time standard. This second speed is compared with the first anti-overheating wind speed and the preset wind speed, selecting the minimum speed as the final anti-overheating wind speed to further prevent localized overheating. This dynamic adjustment mechanism ensures more even heat distribution during the drying process, effectively protecting the health of the hair and scalp. Attached Figure Description
[0021] Figure 1 This refers to the method corresponding to the overheat protection control system for a hair dryer described in this invention. Detailed Implementation
[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0023] An embodiment of the present invention provides an overheat protection control system for a hair dryer, the system comprising: Command system: Executes the preset state command of the hair dryer, the preset state command of the hair dryer includes at least the preset airflow speed and the preset heating temperature of the hair dryer; Data acquisition system: acquires the real-time status information of the hair dryer, the real-time status information including at least the real-time motion status of the hair dryer and the distance between the real-time blowing position of the hair dryer and the obstacle; Temperature and speed feedback system: Based on the real-time movement status of the hair dryer and the distance between the real-time blowing position of the hair dryer and the obstacle, the system performs anti-overheating adjustment on the basis of the preset blowing speed and preset heating temperature of the hair dryer. The anti-overheating adjustment method is at least to coordinate and change the blowing speed and heating temperature of the hair dryer.
[0024] The working principle and effect of the above technical solution are as follows: Before using the hair dryer, the user can set the preset airflow speed and preset heating temperature through settings or system defaults. These preset values serve as the initial parameters for the hair dryer to operate normally. The instruction system is responsible for executing these preset state commands, causing the hair dryer to start working according to the preset airflow speed and temperature. During the operation of the hair dryer, the acquisition system acquires the hair dryer's status information in real time. This information includes the real-time motion status of the hair dryer (e.g., whether the hair dryer is stationary, its speed, etc.) and the distance between the hair dryer's real-time blowing position and obstacles (e.g., hair, scalp, etc.). It is worth noting that the real-time motion status of the hair dryer is achieved using a vibration sensor or gyroscope, and the real-time distance between the hair dryer's real-time blowing position and obstacles is achieved using any one of an infrared ranging sensor, photoelectric ranging sensor, or visual ranging sensor. Through the above sensors and other devices, the system can accurately monitor this dynamic information, providing data support for subsequent adjustments. Then, based on the real-time motion status and distance information between the blowing position and obstacles acquired by the acquisition system, the preset airflow speed and preset heating temperature of the hair dryer are dynamically adjusted. Specifically, when the hair dryer is too close to an obstacle (drying distance exceeds the limit) or remains stationary in a certain position for too long (drying time exceeds the limit), the temperature feedback system calculates a new anti-overheating airflow speed and heating temperature based on preset safety standards and real-time data, and executes these adjustments. This adjustment method includes at least coordinating changes in the hair dryer's airflow speed and heating temperature to ensure that localized overheating does not damage the hair or scalp during the drying process. For example, when the hair dryer is too close to the hair, the system reduces the airflow speed and temperature to prevent damage to localized hair from prolonged exposure to high temperatures, reducing problems such as dryness, split ends, and breakage. It also reduces heat stimulation to the scalp, preventing burns. When the hair dryer remains stationary in a certain position for too long, the system calculates a new anti-overheating airflow speed based on the difference between the stationary time and the safe time standard, and selects the minimum airflow speed as the final anti-overheating airflow speed. This dynamic adjustment mechanism ensures more even heat distribution during the drying process, effectively protecting the health of the hair and scalp. This system can dynamically adjust the working parameters of the hair dryer according to different usage scenarios and user needs, so as to achieve an intelligent and personalized hair drying experience.
[0025] In one embodiment of the present invention, the temperature rate feedback system includes: First wind speed adjustment calculation system: If the drying distance of the hair dryer exceeds the limit, the first anti-overheating wind speed of the hair dryer is calculated based on the difference between the safety distance standard and the distance between the real-time blowing position of the hair dryer and the obstacle. Second wind speed adjustment calculation system: If the drying time of the hair dryer exceeds the limit, the second anti-overheating wind speed of the hair dryer is calculated based on the difference between the static time of the real-time motion state of the hair dryer and the safe time standard. Wind speed coordination system: Select the option with the lowest wind speed among the preset blowing wind speed, the first anti-overheat blowing wind speed and the second anti-overheat blowing wind speed of the hair dryer as the final anti-overheat blowing wind speed and execute it. Temperature and speed coordination system: Substitute the final anti-overheating blower speed into the first function to obtain the anti-overheating heating temperature and execute it. The first function is:
[0026] Where v is the final anti-overheating blower speed; T represents the overheat protection heating temperature; This is the preset heating temperature for the hair dryer; The ambient temperature; k is the proportionality coefficient between wind speed and temperature; α is the nonlinear coefficient of wind speed; β is the safety factor.
[0027] The working principle and effect of the above technical solution are as follows: When the drying distance of the hair dryer exceeds the limit (i.e., the distance between the hair dryer's blowing position and the obstacle is less than the safe distance standard), the system will calculate the first anti-overheating blowing speed based on the difference between the safe distance standard and the actual distance. Specifically, the difference is substituted into a relevant function or formula to obtain an adjusted wind speed value. This wind speed value aims to reduce the output wind speed of the hair dryer to reduce localized high temperatures caused by excessively close proximity. When the drying time of the hair dryer exceeds the limit (i.e., the time the hair dryer remains stationary in a certain position exceeds the safe time standard), the system will calculate the second anti-overheating blowing speed based on the difference between the stationary time and the safe time standard. Similarly, by substituting the difference into a relevant function or formula, an adjusted wind speed value is obtained. This wind speed value is used to reduce the output wind speed of the hair dryer to avoid localized overheating caused by prolonged stationary position in the same location. The system comprehensively considers the hair dryer's preset blowing speed, the first anti-overheating blowing speed, and the second anti-overheating blowing speed. Of the three wind speed values, the lowest wind speed is selected as the final anti-overheating wind speed and executed. This ensures that the hair dryer will not output excessively high wind speeds under any circumstances, effectively preventing overheating. Simultaneously, by adjusting the heating temperature, heat damage to the hair and scalp can be further reduced, improving the safety and reliability of the hair dryer. The first function is used to calculate the anti-overheating heating temperature T of the hair dryer, where T is the anti-overheating heating temperature, i.e., the actual heating temperature output by the hair dryer in anti-overheating mode. is the preset heating temperature of the hair dryer, which is the initial heating temperature set by the user or the system. v is the final anti-overheating airflow speed, which is the airflow speed adjusted by the first and second airflow adjustment calculation systems. The ambient temperature is the current temperature in the environment where the hair dryer is used. `k` is the proportionality coefficient between wind speed and temperature, used to adjust the degree of influence of wind speed on temperature. `α` is the nonlinear coefficient of wind speed, used to describe the nonlinear effect of wind speed on temperature. For example, when `α>1`, the effect of wind speed on temperature accelerates with increasing wind speed; when `α<1`, the effect is relatively gradual. `β` is the safety factor, used to adjust the influence of ambient temperature on the final heating temperature to ensure safety. This allows the first function to dynamically adjust the temperature according to changes in wind speed, ensuring that the temperature is appropriately increased to compensate for heat loss when the wind speed is higher, and dynamically adjusts the temperature according to changes in ambient temperature, ensuring that the heating temperature is reduced when the ambient temperature is high and appropriately increased when the ambient temperature is low.
[0028] In one embodiment of the present invention, the first wind speed regulation calculation system includes: Distance measurement system: compares the distance between the real-time blowing position of the hair dryer and the obstacle with the size of the safe distance standard; First temperature and speed direct control system: If the distance between the real-time blowing position of the blower and the obstacle is greater than the safe distance standard, then the preset blowing speed and preset heating temperature of the blower are executed. First wind speed calculation system: If the distance between the real-time blowing position of the blower and the obstacle is less than the safety distance standard, then the difference between the real-time safety distance standard and the distance between the real-time blowing position of the blower and the obstacle is substituted into the second function to obtain the first anti-overheating blower wind speed. The second function is:
[0029] in, The primary airflow speed is set to prevent overheating. d represents the distance between the real-time blowing position of the hair dryer and the obstacle; As a standard for safe distance; The preset airflow speed for the hair dryer; This is the linear proportionality coefficient between distance and wind speed; α is a non-linear adjustment coefficient; This represents the minimum wind speed. This represents the upper limit of wind speed; γ represents the environmental factor.
[0030] The working principle and effect of the above technical solution are as follows: compare the distance d between the real-time blowing position of the blower and the obstacle with the safety distance standard. When the distance is greater than the safety distance standard, execute the preset blowing speed and heating temperature. When the distance is less than the safety distance standard, calculate the first anti-overheat blowing speed based on the distance difference. The second function is used to calculate the first anti-overheating blower speed. of, The first anti-overheating airflow speed is the adjusted airflow speed based on the distance difference. d represents the real-time distance between the blower's blowing position and the obstacle. The safety distance standard refers to the minimum safe distance that should be maintained between the hair dryer and the obstacle. The preset airflow speed for the hair dryer, i.e., the initial airflow speed set by the user or the system. α is the linear scaling factor between distance and wind speed, used to adjust the degree of influence of distance difference on wind speed. α is a nonlinear adjustment factor used to describe the nonlinear effect of distance difference on wind speed. For example, when α > 1, the effect of distance difference on wind speed will accelerate as the distance decreases; when α < 1, the effect will be relatively gradual. This is the minimum wind speed, ensuring that the wind speed does not fall below a certain safety threshold. This represents the upper limit of wind speed, ensuring that the wind speed does not exceed a certain maximum value. γ: Environmental factor, used to consider the impact of environmental conditions on wind speed adjustment. When the distance between the hair dryer and an obstacle is too close, the wind speed will automatically decrease to reduce heat output and prevent localized overheating, thereby protecting the hair and scalp from high-temperature damage. Furthermore, when the distance d between the hair dryer and the obstacle is less than the safe distance standard... The wind speed adjusts based on the distance difference; the closer the distance, the greater the reduction in wind speed. By introducing an environmental factor γ, the system can consider the impact of environmental conditions (such as humidity and temperature) on wind speed adjustment, further improving the system's adaptability and reliability. The dynamic adjustment of the environmental factor γ can be based on various factors such as ambient temperature, humidity, and user settings. In this way, the hair dryer can better adapt to different usage environments, ensuring safe and effective operation under various conditions while protecting the health of hair and scalp.
[0031] In one embodiment of the present invention, the second wind speed regulation calculation system includes: Time measurement system: compares the static time of the real-time motion state of the hair dryer with the magnitude of the safe time standard; Second temperature and speed direct control system: If the static time of the real-time blowing state of the hair dryer is less than the safety time standard, then the preset blowing speed and preset heating temperature of the hair dryer are executed. First wind speed calculation system: If the static time of the real-time blowing state of the hair dryer is greater than the safety time standard, then the difference between the static time of the real-time blowing state of the hair dryer and the safety time standard is substituted into the third function to obtain the second anti-overheating blowing wind speed, wherein the third function is:
[0032] in, The second anti-overheating airflow speed; t represents the real-time settling time of the hair dryer; For safe time standards; The preset airflow speed for the hair dryer; This is the linear proportionality coefficient between settling time and wind speed; β is a nonlinear adjustment coefficient; This represents the minimum wind speed. This represents the upper limit of wind speed; γ represents the environmental factor.
[0033] The working principle and effect of the above technical solution are as follows: compare the real-time static time t of the hair dryer with the safety time standard. When the settling time is less than the safe time standard, the preset blowing speed and heating temperature are executed. When the settling time is greater than the safe time standard, the second anti-overheat blowing speed is calculated based on the difference in settling time. The third function is used to calculate the second anti-overheating blower speed. of, This is the second anti-overheating airflow speed, which is the airflow speed adjusted based on the difference in resting time. t is the real-time resting time of the hair dryer. The safe time standard is the maximum safe time for a hair dryer to remain stationary in a certain position. The preset airflow speed for the hair dryer, i.e., the initial airflow speed set by the user or the system. β is the linear proportionality coefficient between settling time and wind speed, used to adjust the degree of influence of the settling time difference on wind speed. β is a nonlinear adjustment coefficient used to describe the nonlinear effect of the settling time difference on wind speed. For example, when β > 1, the effect of the settling time difference on wind speed will accelerate with the increase of settling time; when β < 1, the effect will be relatively mild. This is the minimum wind speed, ensuring that the wind speed does not fall below a certain safety threshold. γ represents the upper limit of wind speed, ensuring that the wind speed does not exceed a certain maximum value. γ is an environmental factor used to account for the impact of environmental conditions on wind speed adjustment. When the hair dryer remains stationary in a certain position for too long, the wind speed will automatically decrease to reduce heat output and prevent localized overheating, thereby protecting the hair and scalp from high-temperature damage. Furthermore, if the hair dryer remains stationary in a certain position for a time t greater than the safe time standard... During operation, the fan speed adjusts based on the time difference between resting periods. The longer the resting period, the greater the reduction in fan speed. By introducing an environmental factor γ, the system can consider the impact of environmental conditions (such as humidity and temperature) on fan speed adjustment, further improving the system's adaptability and reliability. The dynamic adjustment of the environmental factor γ can be based on various factors such as ambient temperature, humidity, and user settings. In this way, the hair dryer can better adapt to different usage environments, ensuring safe and effective operation under various conditions while protecting the health of hair and scalp.
[0034] In one embodiment of the present invention, step S3 further includes issuing an overheating warning if either the drying distance or the drying time of the hair dryer exceeds the limit, wherein the overheating warning is any one or more of vibration prompts, display prompts, or sound prompts.
[0035] The working principle and effect of the above technical solution are as follows: When either the drying distance or drying time exceeds the limit, the system triggers an overheating warning. The warning method can be any one or more of the following: Vibration alert: The hair dryer emits a vibration signal through a built-in vibration device to remind the user (a miniature vibration motor is installed inside the hair dryer; when the drying distance or drying time exceeds the limit, the system controls the vibration motor to start, so the user can feel the vibration when holding the hair dryer, thus realizing that the hair dryer needs to be used correctly). Display alert: The display screen on the hair dryer displays a warning message to remind the user (a small display screen is equipped on the hair dryer; when the drying distance or drying time exceeds the limit, the system displays a warning message on the display screen, allowing the user to understand the specific problem and take appropriate measures by viewing the information on the display screen). Sound alerts: The hair dryer emits an audible alarm to remind the user (a miniature speaker is installed inside the hair dryer; when the drying distance or drying time exceeds the limit, the system controls the speaker to emit an audible alarm, and the user realizes that the hair dryer needs to be used in a way that can be heard). Through various methods such as vibration alerts, display alerts, or audible alerts, users can adjust the way the hair dryer is used in a timely manner to avoid potential overheating risks and ensure that the hair dryer operates within a safe range.
[0036] One embodiment of the present invention provides a method corresponding to an overheat protection control system for a hair dryer, the method comprising: S1: Execute the preset state command of the hair dryer, the preset state command of the hair dryer includes at least the preset airflow speed and the preset heating temperature of the hair dryer; S2: Obtain the real-time status information of the hair dryer, the real-time status information including at least the real-time motion status of the hair dryer and the distance between the real-time blowing position of the hair dryer and the obstacle; S3: Based on the real-time movement state of the hair dryer and the distance between the real-time blowing position of the hair dryer and the obstacle, anti-overheating adjustment is performed on the basis of the preset blowing speed and preset heating temperature of the hair dryer. The anti-overheating adjustment method is at least to coordinately change the blowing speed and heating temperature of the hair dryer.
[0037] The working principle and effect of the above technical solution are as follows: Before using the hair dryer, the user can set the preset airflow speed and preset heating temperature through settings or system defaults. These preset values serve as the initial parameters for the hair dryer to operate normally. The instruction system is responsible for executing these preset state commands, causing the hair dryer to start working according to the preset airflow speed and temperature. During the operation of the hair dryer, the acquisition system acquires the hair dryer's status information in real time. This information includes the real-time motion status of the hair dryer (e.g., whether the hair dryer is stationary, its speed, etc.) and the distance between the hair dryer's real-time blowing position and obstacles (e.g., hair, scalp, etc.). It is worth noting that the real-time motion status of the hair dryer is achieved using a vibration sensor or gyroscope, and the real-time distance between the hair dryer's real-time blowing position and obstacles is achieved using any one of an infrared ranging sensor, photoelectric ranging sensor, or visual ranging sensor. Through the above sensors and other devices, the system can accurately monitor this dynamic information, providing data support for subsequent adjustments. Then, based on the real-time motion status and distance information between the blowing position and obstacles acquired by the acquisition system, the preset airflow speed and preset heating temperature of the hair dryer are dynamically adjusted. Specifically, when the hair dryer is too close to an obstacle (drying distance exceeds the limit) or remains stationary in a certain position for too long (drying time exceeds the limit), the temperature feedback system calculates a new anti-overheating airflow speed and heating temperature based on preset safety standards and real-time data, and executes these adjustments. This adjustment method includes at least coordinating changes in the hair dryer's airflow speed and heating temperature to ensure that localized overheating does not damage the hair or scalp during the drying process. For example, when the hair dryer is too close to the hair, the system reduces the airflow speed and temperature to prevent damage to localized hair from prolonged exposure to high temperatures, reducing problems such as dryness, split ends, and breakage. It also reduces heat stimulation to the scalp, preventing burns. When the hair dryer remains stationary in a certain position for too long, the system calculates a new anti-overheating airflow speed based on the difference between the stationary time and the safe time standard, and selects the minimum airflow speed as the final anti-overheating airflow speed. This dynamic adjustment mechanism ensures more even heat distribution during the drying process, effectively protecting the health of the hair and scalp. This system can dynamically adjust the working parameters of the hair dryer according to different usage scenarios and user needs, so as to achieve an intelligent and personalized hair drying experience.
[0038] Preferably, S3 includes: S31: If the drying distance of the hair dryer exceeds the limit, the first anti-overheating blowing speed of the hair dryer is calculated based on the difference between the safety distance standard and the distance between the real-time blowing position of the hair dryer and the obstacle. S32: If the drying time of the hair dryer exceeds the limit, the second anti-overheating airflow speed of the hair dryer is calculated based on the difference between the static time of the real-time motion state of the hair dryer and the safe time standard. S33: Select the option with the lowest wind speed among the preset wind speed of the hair dryer, the first anti-overheating wind speed, and the second anti-overheating wind speed as the final anti-overheating wind speed and execute it. S34: Substitute the final anti-overheating blower speed into the first function to obtain the anti-overheating heating temperature and execute it. The first function is:
[0039] Where v is the final anti-overheating blower speed; T represents the overheat protection heating temperature; This is the preset heating temperature for the hair dryer; The ambient temperature; k is the proportionality coefficient between wind speed and temperature; α is the nonlinear coefficient of wind speed; β is the safety factor.
[0040] The working principle and effect of the above technical solution are as follows: When the drying distance of the hair dryer exceeds the limit (i.e., the distance between the hair dryer's blowing position and the obstacle is less than the safe distance standard), the system will calculate the first anti-overheating blowing speed based on the difference between the safe distance standard and the actual distance. Specifically, the difference is substituted into a relevant function or formula to obtain an adjusted wind speed value. This wind speed value aims to reduce the output wind speed of the hair dryer to reduce localized high temperatures caused by excessively close proximity. When the drying time of the hair dryer exceeds the limit (i.e., the time the hair dryer remains stationary in a certain position exceeds the safe time standard), the system will calculate the second anti-overheating blowing speed based on the difference between the stationary time and the safe time standard. Similarly, by substituting the difference into a relevant function or formula, an adjusted wind speed value is obtained. This wind speed value is used to reduce the output wind speed of the hair dryer to avoid localized overheating caused by prolonged stationary position in the same location. The system comprehensively considers the hair dryer's preset blowing speed, the first anti-overheating blowing speed, and the second anti-overheating blowing speed. Of the three wind speed values, the lowest wind speed is selected as the final anti-overheating wind speed and executed. This ensures that the hair dryer will not output excessively high wind speeds under any circumstances, effectively preventing overheating. Simultaneously, by adjusting the heating temperature, heat damage to the hair and scalp can be further reduced, improving the safety and reliability of the hair dryer. The first function is used to calculate the anti-overheating heating temperature T of the hair dryer, where T is the anti-overheating heating temperature, i.e., the actual heating temperature output by the hair dryer in anti-overheating mode. is the preset heating temperature of the hair dryer, which is the initial heating temperature set by the user or the system. v is the final anti-overheating airflow speed, which is the airflow speed adjusted by the first and second airflow adjustment calculation systems. The ambient temperature is the current temperature in the environment where the hair dryer is used. `k` is the proportionality coefficient between wind speed and temperature, used to adjust the degree of influence of wind speed on temperature. `α` is the nonlinear coefficient of wind speed, used to describe the nonlinear effect of wind speed on temperature. For example, when `α>1`, the effect of wind speed on temperature accelerates with increasing wind speed; when `α<1`, the effect is relatively gradual. `β` is the safety factor, used to adjust the influence of ambient temperature on the final heating temperature to ensure safety. This allows the first function to dynamically adjust the temperature according to changes in wind speed, ensuring that the temperature is appropriately increased to compensate for heat loss when the wind speed is higher, and dynamically adjusts the temperature according to changes in ambient temperature, ensuring that the heating temperature is reduced when the ambient temperature is high and appropriately increased when the ambient temperature is low.
[0041] Preferably, the 31 includes: S311: Compare the distance between the real-time blowing position of the hair dryer and the obstacle with the size of the safe distance standard; S312: If the distance between the real-time blowing position of the hair dryer and the obstacle is greater than the safe distance standard, then the preset blowing speed and preset heating temperature of the hair dryer are executed. S313: If the distance between the real-time blowing position of the hair dryer and the obstacle is less than the safety distance standard, then the difference between the real-time safety distance standard and the distance between the real-time blowing position of the hair dryer and the obstacle is substituted into the second function to obtain the first anti-overheating blowing speed. The second function is:
[0042] in, The primary airflow speed is set to prevent overheating. d represents the distance between the real-time blowing position of the hair dryer and the obstacle; As a standard for safe distance; The preset airflow speed for the hair dryer; This is the linear proportionality coefficient between distance and wind speed; α is a non-linear adjustment coefficient; This represents the minimum wind speed. This represents the upper limit of wind speed; γ represents the environmental factor.
[0043] The working principle and effect of the above technical solution are as follows: compare the distance d between the real-time blowing position of the blower and the obstacle with the safety distance standard. When the distance is greater than the safety distance standard, execute the preset blowing speed and heating temperature. When the distance is less than the safety distance standard, calculate the first anti-overheat blowing speed based on the distance difference. The second function is used to calculate the first anti-overheating blower speed. of, The first anti-overheating airflow speed is the adjusted airflow speed based on the distance difference. d represents the real-time distance between the blower's blowing position and the obstacle. The safety distance standard refers to the minimum safe distance that should be maintained between the hair dryer and the obstacle. The preset airflow speed for the hair dryer, i.e., the initial airflow speed set by the user or the system. α is the linear scaling factor between distance and wind speed, used to adjust the degree of influence of distance difference on wind speed. α is a nonlinear adjustment factor used to describe the nonlinear effect of distance difference on wind speed. For example, when α > 1, the effect of distance difference on wind speed will accelerate as the distance decreases; when α < 1, the effect will be relatively gradual. This is the minimum wind speed, ensuring that the wind speed does not fall below a certain safety threshold. This represents the upper limit of wind speed, ensuring that the wind speed does not exceed a certain maximum value. γ: Environmental factor, used to consider the impact of environmental conditions on wind speed adjustment. When the distance between the hair dryer and an obstacle is too close, the wind speed will automatically decrease to reduce heat output and prevent localized overheating, thereby protecting the hair and scalp from high-temperature damage. Furthermore, when the distance d between the hair dryer and the obstacle is less than the safe distance standard... The wind speed adjusts based on the distance difference; the closer the distance, the greater the reduction in wind speed. By introducing an environmental factor γ, the system can consider the impact of environmental conditions (such as humidity and temperature) on wind speed adjustment, further improving the system's adaptability and reliability. The dynamic adjustment of the environmental factor γ can be based on various factors such as ambient temperature, humidity, and user settings. In this way, the hair dryer can better adapt to different usage environments, ensuring safe and effective operation under various conditions while protecting the health of hair and scalp.
[0044] Preferably, S32 includes: S321: Compare the static time of the real-time motion state of the hair dryer with the magnitude of the safe time standard; S322: If the static time of the real-time blowing state of the hair dryer is less than the safe time standard, then the preset blowing speed and preset heating temperature of the hair dryer are executed.
[0045] S323: If the static time of the real-time blowing state of the hair dryer is greater than the safety time standard, then the difference between the static time of the real-time blowing state of the hair dryer and the safety time standard is substituted into the third function to obtain the second anti-overheating blowing speed, wherein the third function is:
[0046] in, The second anti-overheating airflow speed; t represents the real-time settling time of the hair dryer; For safe time standards; The preset airflow speed for the hair dryer; This is the linear proportionality coefficient between settling time and wind speed; β is a nonlinear adjustment coefficient; This represents the minimum wind speed. This represents the upper limit of wind speed; γ represents the environmental factor.
[0047] The working principle and effect of the above technical solution are as follows: compare the real-time static time t of the hair dryer with the safety time standard. When the settling time is less than the safe time standard, the preset blowing speed and heating temperature are executed. When the settling time is greater than the safe time standard, the second anti-overheat blowing speed is calculated based on the difference in settling time. The third function is used to calculate the second anti-overheating blower speed. of, This is the second anti-overheating airflow speed, which is the airflow speed adjusted based on the difference in resting time. t is the real-time resting time of the hair dryer. The safe time standard is the maximum safe time for a hair dryer to remain stationary in a certain position. The preset airflow speed for the hair dryer, i.e., the initial airflow speed set by the user or the system. β is the linear proportionality coefficient between settling time and wind speed, used to adjust the degree of influence of the settling time difference on wind speed. β is a nonlinear adjustment coefficient used to describe the nonlinear effect of the settling time difference on wind speed. For example, when β > 1, the effect of the settling time difference on wind speed will accelerate with the increase of settling time; when β < 1, the effect will be relatively mild. This is the minimum wind speed, ensuring that the wind speed does not fall below a certain safety threshold. γ represents the upper limit of wind speed, ensuring that the wind speed does not exceed a certain maximum value. γ is an environmental factor used to account for the impact of environmental conditions on wind speed adjustment. When the hair dryer remains stationary in a certain position for too long, the wind speed will automatically decrease to reduce heat output and prevent localized overheating, thereby protecting the hair and scalp from high-temperature damage. Furthermore, if the hair dryer remains stationary in a certain position for a time t greater than the safe time standard... During operation, the fan speed adjusts based on the time difference between resting periods. The longer the resting period, the greater the reduction in fan speed. By introducing an environmental factor γ, the system can consider the impact of environmental conditions (such as humidity and temperature) on fan speed adjustment, further improving the system's adaptability and reliability. The dynamic adjustment of the environmental factor γ can be based on various factors such as ambient temperature, humidity, and user settings. In this way, the hair dryer can better adapt to different usage environments, ensuring safe and effective operation under various conditions while protecting the health of hair and scalp.
[0048] Preferably, S3 further includes issuing an overheating warning if either the drying distance or the drying time of the hair dryer exceeds the limit, wherein the overheating warning is any one or more of vibration prompts, display prompts, or sound prompts.
[0049] The working principle and effect of the above technical solution are as follows: When either the drying distance or drying time exceeds the limit, the system triggers an overheating warning. The warning method can be any one or more of the following: Vibration alert: The hair dryer emits a vibration signal through a built-in vibration device to remind the user (a miniature vibration motor is installed inside the hair dryer; when the drying distance or drying time exceeds the limit, the system controls the vibration motor to start, so the user can feel the vibration when holding the hair dryer, thus realizing that the hair dryer needs to be used correctly). Display alert: The display screen on the hair dryer displays a warning message to remind the user (a small display screen is equipped on the hair dryer; when the drying distance or drying time exceeds the limit, the system displays a warning message on the display screen, allowing the user to understand the specific problem and take appropriate measures by viewing the information on the display screen). Sound alerts: The hair dryer emits an audible alarm to remind the user (a miniature speaker is installed inside the hair dryer; when the drying distance or drying time exceeds the limit, the system controls the speaker to emit an audible alarm, and the user realizes that the hair dryer needs to be used in a way that can be heard). Through various methods such as vibration alerts, display alerts, or audible alerts, users can adjust the way the hair dryer is used in a timely manner to avoid potential overheating risks and ensure that the hair dryer operates within a safe range.
[0050] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.
Claims
1. An overheat protection control system for a hair dryer, characterized in that, The system includes: Command system: Executes the preset state command of the hair dryer, the preset state command of the hair dryer includes at least the preset airflow speed and the preset heating temperature of the hair dryer; Data acquisition system: acquires the real-time status information of the hair dryer, the real-time status information including at least the real-time motion status of the hair dryer and the distance between the real-time blowing position of the hair dryer and the obstacle; Temperature and speed feedback system: Based on the real-time movement status of the hair dryer and the distance between the real-time blowing position of the hair dryer and the obstacle, the system performs anti-overheating adjustment on the basis of the preset blowing speed and preset heating temperature of the hair dryer. The anti-overheating adjustment method is at least to coordinate and change the blowing speed and heating temperature of the hair dryer.
2. The overheat protection control system for a hair dryer according to claim 1, characterized in that, The temperature rate feedback system includes: First wind speed adjustment calculation system: If the drying distance of the hair dryer exceeds the limit, the first anti-overheating wind speed of the hair dryer is calculated based on the difference between the safety distance standard and the distance between the real-time blowing position of the hair dryer and the obstacle. Second wind speed adjustment calculation system: If the drying time of the hair dryer exceeds the limit, the second anti-overheating wind speed of the hair dryer is calculated based on the difference between the static time of the real-time motion state of the hair dryer and the safe time standard. Wind speed coordination system: Select the option with the lowest wind speed among the preset blowing wind speed, the first anti-overheat blowing wind speed and the second anti-overheat blowing wind speed of the hair dryer as the final anti-overheat blowing wind speed and execute it. Temperature and speed coordination system: Substitute the final anti-overheating blower speed into the first function to obtain the anti-overheating heating temperature and execute it. The first function is: Where v is the final anti-overheating blower speed; T represents the overheat protection heating temperature; This is the preset heating temperature for the hair dryer; The ambient temperature; k is the proportionality coefficient between wind speed and temperature; α is the nonlinear coefficient of wind speed; β is the safety factor.
3. The overheat protection control system for a hair dryer according to claim 2, characterized in that, The first wind speed regulation calculation system includes: Distance measurement system: compares the distance between the real-time blowing position of the hair dryer and the obstacle with the size of the safe distance standard; First temperature and speed direct control system: If the distance between the real-time blowing position of the blower and the obstacle is greater than the safe distance standard, then the preset blowing speed and preset heating temperature of the blower are executed. First wind speed calculation system: If the distance between the real-time blowing position of the blower and the obstacle is less than the safe distance standard, then the difference between the real-time safe distance standard and the distance between the real-time blowing position of the blower and the obstacle is substituted into the second function to obtain the first anti-overheating blower wind speed. The second function is: in, The primary airflow speed is set to prevent overheating. d represents the distance between the real-time blowing position of the hair dryer and the obstacle; As a standard for safe distance; The preset airflow speed for the hair dryer; This is the linear proportionality coefficient between distance and wind speed; α is a non-linear adjustment coefficient; This represents the minimum wind speed. This represents the upper limit of wind speed; γ represents the environmental factor.
4. The overheat protection control system for a hair dryer according to claim 2, characterized in that, The second wind speed regulation calculation system includes: Time measurement system: compares the static time of the real-time motion state of the hair dryer with the magnitude of the safe time standard; Second temperature and speed direct control system: If the static time of the real-time blowing state of the hair dryer is less than the safety time standard, then the preset blowing speed and preset heating temperature of the hair dryer are executed. First wind speed calculation system: If the static time of the real-time blowing state of the hair dryer is greater than the safe time standard, then the difference between the static time of the real-time blowing state of the hair dryer and the safe time standard is substituted into the third function to obtain the second anti-overheating blowing wind speed, wherein the third function is: in, The second anti-overheating airflow speed; t represents the real-time settling time of the hair dryer; For safe time standards; The preset airflow speed for the hair dryer; This is the linear proportionality coefficient between settling time and wind speed; β is a nonlinear adjustment coefficient; This represents the minimum wind speed. This represents the upper limit of wind speed; γ represents the environmental factor.
5. The overheat protection control system for a hair dryer according to claim 1, characterized in that, The S3 further includes issuing an overheating warning if either the drying distance or the drying time of the hair dryer exceeds the limit, wherein the overheating warning is any one or more of vibration prompts, display prompts, or sound prompts.
6. A method corresponding to an overheat protection control system for a hair dryer, characterized in that, The method includes: S1: Execute the preset state command of the hair dryer, the preset state command of the hair dryer includes at least the preset airflow speed and the preset heating temperature of the hair dryer; S2: Obtain the real-time status information of the hair dryer, the real-time status information including at least the real-time motion status of the hair dryer and the distance between the real-time blowing position of the hair dryer and the obstacle; S3: Based on the real-time movement state of the hair dryer and the distance between the real-time blowing position of the hair dryer and the obstacle, anti-overheating adjustment is performed on the basis of the preset blowing speed and preset heating temperature of the hair dryer. The anti-overheating adjustment method is at least to coordinately change the blowing speed and heating temperature of the hair dryer.
7. The method corresponding to the anti-overheating control system for a hair dryer according to claim 6, characterized in that, S3 includes: S31: If the drying distance of the hair dryer exceeds the limit, the first anti-overheating blowing speed of the hair dryer is calculated based on the difference between the safety distance standard and the distance between the real-time blowing position of the hair dryer and the obstacle. S32: If the drying time of the hair dryer exceeds the limit, the second anti-overheating airflow speed of the hair dryer is calculated based on the difference between the static time of the real-time motion state of the hair dryer and the safe time standard. S33: Select the option with the lowest wind speed among the preset wind speed of the hair dryer, the first anti-overheating wind speed, and the second anti-overheating wind speed as the final anti-overheating wind speed and execute it. S34: Substitute the final anti-overheating blower speed into the first function to obtain the anti-overheating heating temperature and execute it. The first function is: Where v is the final anti-overheating blower speed; T represents the overheat protection heating temperature; This is the preset heating temperature for the hair dryer; The ambient temperature; k is the proportionality coefficient between wind speed and temperature; α is the nonlinear coefficient of wind speed; β is the safety factor.
8. The method corresponding to the overheat protection control system for a hair dryer according to claim 7, characterized in that, The 31 includes: S311: Compare the distance between the real-time blowing position of the hair dryer and the obstacle with the size of the safe distance standard; S312: If the distance between the real-time blowing position of the hair dryer and the obstacle is greater than the safe distance standard, then the preset blowing speed and preset heating temperature of the hair dryer are executed. S313: If the distance between the real-time blowing position of the hair dryer and the obstacle is less than the safety distance standard, then the difference between the real-time safety distance standard and the distance between the real-time blowing position of the hair dryer and the obstacle is substituted into the second function to obtain the first anti-overheating blowing speed. The second function is: in, The primary airflow speed is set to prevent overheating. d represents the distance between the real-time blowing position of the hair dryer and the obstacle; As a standard for safe distance; The preset airflow speed for the hair dryer; This is the linear proportionality coefficient between distance and wind speed; α is a non-linear adjustment coefficient; This represents the minimum wind speed. This represents the upper limit of wind speed; γ represents the environmental factor.
9. The method corresponding to the overheat protection control system for a hair dryer according to claim 7, characterized in that, S32 includes: S321: Compare the static time of the real-time motion state of the hair dryer with the magnitude of the safe time standard; S322: If the static time of the real-time blowing state of the hair dryer is less than the safety time standard, then the preset blowing speed and preset heating temperature of the hair dryer are executed. S323: If the static time of the real-time blowing state of the hair dryer is greater than the safety time standard, then the difference between the static time of the real-time blowing state of the hair dryer and the safety time standard is substituted into the third function to obtain the second anti-overheating blowing speed, wherein the third function is: in, The second anti-overheating airflow speed; t represents the real-time settling time of the hair dryer; For safe time standards; The preset airflow speed for the hair dryer; This is the linear proportionality coefficient between settling time and wind speed; β is a nonlinear adjustment coefficient; This represents the minimum wind speed. This represents the upper limit of wind speed; γ represents the environmental factor.
10. The method corresponding to the overheat protection control system for a hair dryer according to claim 6, characterized in that, The S3 further includes issuing an overheating warning if either the drying distance or the drying time of the hair dryer exceeds the limit, wherein the overheating warning is any one or more of vibration prompts, display prompts, or sound prompts.