Constant-temperature hair care device based on zooming
By using a zoom-controlled constant temperature design, the hair dryer temperature is adjusted in real time using distance and temperature sensors, solving the burn problem caused by the fixed airflow temperature of existing hair dryers. It achieves rapid response and constant temperature, making it suitable for people of multiple ages.
Patent Information
- Application Number
- CN202520808750.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-04-25
AI Technical Summary
Existing hair dryers have a fixed airflow temperature, which may cause burns when close to the scalp, and they are not suitable for use by the elderly and children.
It adopts a zoom constant temperature design, which uses distance and temperature sensors to detect the distance and temperature between the hair and the hair dryer. The main control chip calculates and adjusts the power of the heating element based on the data to achieve real-time temperature regulation and ensure a constant temperature.
It responds and adjusts the temperature quickly within 0.5 seconds, and reaches a stable constant temperature within 2.6 seconds to avoid burns, making it suitable for different users.
Smart Images

Figure CN223968783U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hair care devices, specifically a hair care device based on zoom constant temperature. Background Technology
[0002] The temperature of the air outlet of existing hair dryers is fixed, and the temperature is the same whether the air is close to the hair or far away from the hair. This can cause the scalp to be burned when the hair dryer is close to the hair.
[0003] Existing hair dryers cannot achieve a consistent temperature when blowing on the scalp. For example, if the fan is at 2mm or 200mm, the temperature felt on the scalp will be different. Furthermore, the temperature lag of existing hair dryers may cause burns, making them unsuitable for the elderly and children. Utility Model Content
[0004] The purpose of this invention is to provide a zoom-based constant temperature hair care device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a hair care device based on zoom constant temperature, comprising: a hair dryer body, a hair dryer handle fixedly installed at the lower end of the hair dryer body, an air inlet provided at one end of the hair dryer body, an air outlet provided at the other end, a fan assembly fixedly installed on the inner side of the hair dryer body near the air inlet, a heating element fixedly installed on the inner side of the end of the hair dryer body near the air outlet, and a distance sensor fixedly installed at the outer port of the heating element;
[0006] A sensor cover is fixed to the outer end of the heating element with screws. A rectangular sensing window is opened in the middle of the sensor cover. The main control chip is fixed to the handle of the hair dryer.
[0007] Preferably, the main control chip has a built-in microprocessor and control program, and the main control chip is electrically connected to the distance sensor, the heating component, and the fan component.
[0008] Preferably, a temperature sensor is fixedly installed on the inner side of the end of the hair dryer body near the air outlet.
[0009] Preferably, a filter cover is installed on the outside of the air inlet of the blower body.
[0010] Preferably, a power switch and a heating button are installed sequentially from top to bottom on one side wall of the hair dryer handle.
[0011] Preferably, the switch button and the heating button are electrically connected to the main control chip.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention utilizes a fan assembly to draw in external air through the inlet and expel it through the outlet. The heating element, powered on, generates high temperatures that heat the passing air. A distance sensor collects the actual distance between the hair dryer and the hair via a sensing window and transmits this information to the main control chip. Simultaneously, a temperature sensor collects the temperature information at the hair dryer's outlet and transmits it to the main control chip. Based on the data collected by the distance and temperature sensors, the main control chip calculates the relationship between temperature and distance using a preset algorithm and outputs corresponding control signals to the heating element. The heating element adjusts its power according to the control signals, thus rapidly responding and adjusting the outlet temperature within 0.5 seconds. When the distance decreases, the temperature decreases; when the distance increases, the temperature increases. Finally, a stable temperature is reached within 2.6 seconds and maintained at a constant temperature. Attached Figure Description
[0014] Figure 1 This is a front view of the structure of this utility model;
[0015] Figure 2 This is a three-dimensional view of the structure of this utility model;
[0016] Figure 3 This is a schematic cross-sectional view of the structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the heating component, distance sensor, and sensor transparent cover of this utility model;
[0018] Figure 5 This is a flowchart of the present invention.
[0019] In the picture: 1. Hair dryer body; 2. Hair dryer handle; 3. Air inlet; 4. Air outlet; 5. Heating element; 6. Fan assembly; 7. Distance sensor; 8. Sensor transparent cover; 9. Sensor window; 10. Main control chip; 11. Power switch button; 12. Heating button. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] Please see Figures 1-5This utility model provides a technical solution: a zoom-based constant temperature hair care device, comprising: a hair dryer body 1, a hair dryer handle 2 fixedly installed at the lower end of the hair dryer body 1, an air inlet 3 at one end of the hair dryer body 1 and an air outlet 4 at the other end, a fan assembly 6 fixedly installed on the inner side of the hair dryer body 1 near the air inlet 3, the fan assembly 6 including a fan, which blows air towards the air outlet 4 when the fan is started, and external air enters through the air inlet 3 and is blown out from the air outlet 4, and a heating component 5 fixedly installed on the inner side of the end of the hair dryer body 1 near the air outlet 4, the heating component 5 including a heating resistance wire, which generates high temperature after being energized, heating the passing air and turning the air blown out from the air outlet 4 into hot air.
[0022] A temperature sensor (not shown in the figure) is fixedly installed on the inner side of the hair dryer body 1 near the air outlet 4. A distance sensor 7 is fixedly installed at the outer port of the heating element 5. A sensor transparent cover 8 is fixedly installed on the outer end of the heating element 5 by screws. A rectangular sensing window 9 is opened in the middle of the sensor transparent cover 8. The sensor transparent cover 8 is located outside the distance sensor 7 and protects the distance sensor 7. The distance sensor 7 detects the distance between the hair dryer and the user's hair and transmits the detected data to the main control chip 10. The main control chip 10 is fixedly installed on the hair dryer handle 2. The main control chip 10 is electrically connected to the distance sensor 7, the heating element 5, and the fan assembly 6. The main control chip 10 has a built-in microprocessor and control program and is responsible for processing the distance sensing data. The distance sensor 7 and the temperature sensor collect data and output control signals. The distance sensor 7 collects the actual distance information between the hair dryer and the hair through the sensing window 9 and transmits this information to the main control chip 10. At the same time, the temperature sensor collects the temperature information at the air outlet 4 of the hair dryer and transmits it to the main control chip 10. The main control chip 10 calculates the relationship between temperature and distance according to the data collected by the distance sensor 7 and the temperature sensor through a preset program algorithm and outputs corresponding control signals to the heating component 5. The heating component 5 adjusts the power according to the control signals, thereby responding quickly within 0.5 seconds and adjusting the temperature at the air outlet 4. When the distance is closer, the temperature is lowered; when the distance is farther, the temperature is raised. Finally, a stable temperature is reached within 2.6 seconds and maintained in a constant temperature state.
[0023] like Figure 1 As shown, in some embodiments, a filter cover is installed on the outside of the air inlet 3 of the hair dryer body 1. More specifically, the filter cover filters the air entering the hair dryer to prevent foreign objects from entering the hair dryer and increase the service life of the hair dryer.
[0024] like Figure 2As shown, in some embodiments, a switch button 11 and a heating button 12 are installed sequentially from top to bottom on one side wall of the hair dryer handle 2. The switch button 11 and the heating button 12 are electrically connected to the main control chip 10. More specifically, when the switch button 11 is pushed upward, the switch button 11 sends a signal to the main control chip 10, the main control chip 10 sends a signal to the fan assembly 6 and starts the fan assembly 6, and the hair dryer blows out air at room temperature. When the heating button 12 is pressed, the heating button 12 sends a signal to the main control chip 10, and the main control chip 10 controls the heating component 5 to heat the air passing through it.
[0025] In actual use, the fan assembly 6 blows air towards the air outlet 4. External air enters through the air inlet 3 and exits through the air outlet 4. The heating assembly 5 generates high temperature after being powered on, heating the passing air. The distance sensor 7 collects the actual distance information between the hair dryer and the hair through the sensing window 9 and transmits this information to the main control chip 10. At the same time, the temperature sensor collects the temperature information at the air outlet 4 of the hair dryer and transmits it to the main control chip 10. The main control chip 10 calculates the relationship between temperature and distance based on the data collected by the distance sensor 7 and the temperature sensor through a preset program algorithm and outputs a corresponding control signal to the heating assembly 5. The heating assembly 5 adjusts its power according to the control signal, thereby responding quickly within 0.5 seconds and adjusting the temperature at the air outlet 4. When the distance gets closer, the temperature decreases; when the distance gets farther, the temperature increases. Finally, a stable temperature is reached within 2.6 seconds and maintained at a constant temperature.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A variable focus constant temperature head hair care device comprising: Hair dryer body (1), the lower end of hair dryer body (1) is fixedly installed with hair dryer handle (2), characterized in that: one end of hair dryer body (1) is provided with air inlet (3), the other end is provided with air outlet (4), the inner side of hair dryer body (1) close to air inlet (3) is fixedly installed with fan assembly (6), the inner side of one end of hair dryer body (1) close to air outlet (4) is fixedly installed with heating assembly (5), the outer end of heating assembly (5) is fixedly installed with distance sensor (7); The outer end of heating assembly (5) is fixedly installed with inductor transparent cover (8) through screw, the middle of inductor transparent cover (8) is provided with rectangular induction window (9), hair dryer handle (2) is fixedly installed with main control chip (10).
2. A variable focus constant temperature head hair care device according to claim 1, characterized in that: The main control chip (10) is built-in microprocessor and control program, and the main control chip (10) is electrically connected with distance sensor (7), heating assembly (5) and fan assembly.
3. A variable focus constant temperature head hair care device according to claim 1, characterized in that: The inner side of one end of hair dryer body (1) close to air outlet (4) is fixedly installed with temperature sensor.
4. A variable focus constant temperature head hair care device according to claim 1, characterized in that: The outer side of air inlet (3) of hair dryer body (1) is installed with filter cover.
5. A variable focus constant temperature head hair care device according to claim 1, characterized in that: The side wall of one end of hair dryer handle (2) is sequentially installed with switch button (11) and heating button (12) from top to bottom.
6. A variable focus constant temperature head hair care device according to claim 5, wherein: The switch button (11) and heating button (12) are electrically connected with main control chip (10).