Hair drier with temperature sensing module

Abstract

The hair drier with the temperature sensing module comprises a hair drier body, the hair drier body is provided with an electric control board, the electric control board is electrically connected with a color changing lamp set, a first infrared sensor and a second infrared sensor, and the first infrared sensor and the second infrared sensor are matched to be used for detecting temperature. And the light display color of the color-changing lamp group is changed under the control of the electric control board. The detection range of a hair area can be enlarged in a large area, so that missing detection is avoided, and meanwhile, a user can be reminded of too high temperature of the hair surface in time by changing the color of the color-changing lamp set, so that scalding is prevented.

Description

Technical Field

[0001] This utility model relates to the field of hair dryer technology, and in particular to a hair dryer with a temperature sensing module. Background Technology

[0002] A Chinese patent with publication number CN218682629U discloses an automatic temperature-adjustable ion hair dryer, comprising a shell, a heating element, a fan assembly, and a temperature control circuit assembly. The shell is characterized by comprising an air outlet shell for mounting the heating element and the fan assembly, and a handle extending downwards from the air outlet shell. The temperature control circuit assembly comprises a temperature control circuit, an infrared sensor, and a fixing component. The fixing component has a receiving cavity, with a probe hole at the upper part facing the air outlet of the air outlet shell, and an opening at the lower end facing the outer wall of the air outlet shell. The probe hole communicates with the receiving cavity. The infrared sensor is installed within the receiving cavity, with its sensing end facing the probe hole. The output end of the infrared sensor is electrically connected to the temperature control circuit and transmits the measured hair temperature information to the temperature control circuit. The temperature control circuit controls the heating power of the heating element based on the hair temperature. The lower end of the fixing component is snapped onto the outer wall of the air outlet shell near its air outlet.

[0003] However, the aforementioned hair dryer has the following drawbacks: like most hair dryers on the market, it uses a single infrared sensor to detect hair temperature. However, a single infrared sensor has a limited detection range for hair and is prone to false detections, which urgently needs improvement. Utility Model Content

[0004] The purpose of this invention is to provide a hair dryer with a temperature sensing module, which can greatly improve the detection range of the hair area to avoid missed detections, and can also promptly remind the user that the hair surface temperature is too high by changing the color of the color-changing light group to prevent burns.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a hair dryer with a temperature sensing module, comprising a hair dryer body, wherein the hair dryer body is provided with an electronic control board, and the electronic control board is electrically connected to a color-changing lamp group, a first infrared sensor and a second infrared sensor, wherein the first infrared sensor and the second infrared sensor cooperate to detect temperature, and the electronic control board controls the change of the light display color of the color-changing lamp group.

[0006] By adopting the above technical solution, the hot air blown by the hair dryer acts on the hair for drying. The first infrared sensor and the second infrared sensor work together to achieve large-area temperature detection of the hair, avoiding missed detections and improving the safety of use. When the first infrared sensor or the second infrared sensor detects that the surface temperature of a local hair area is too high, the electronic control board controls the color-changing light group to change color and illuminate the hair surface with the corresponding light color, making it easier for the user to observe the color change more intuitively and turn off the hair dryer or move it away from the head in time. In addition, if one of the first infrared sensor and the second infrared sensor is damaged, it will not affect the basic function of the hair dryer. It can greatly improve the detection range of the hair area to avoid missed detections, and can also promptly remind the user that the hair surface temperature is too high by changing the color of the color-changing light group, thereby preventing burns.

[0007] A further feature of this invention is that the hair dryer body has an air outlet, and the hair dryer body has an air outlet panel corresponding to the air outlet. The air outlet panel has a light-transmitting hole, a first receiving hole, and a second receiving hole. The color-changing light group is installed in the light-transmitting hole, the first infrared sensor is installed in the first receiving hole, and the second infrared sensor is installed in the second receiving hole.

[0008] By adopting the above technical solution, the color-changing light group, the first infrared sensor and the second sensor are firmly mounted on the air outlet panel, and the first infrared sensor and the second sensor are exposed on the surface of the blower panel through the corresponding first receiving hole and second receiving hole, which improves the accuracy of hair temperature detection and reduces the possibility of missed detection and false detection.

[0009] A further feature of this invention is that the air outlet panel is a disc structure, the light-transmitting hole is located at the center of the air outlet panel, and the first receiving hole and the second receiving hole are arranged around the light-transmitting hole along the radial direction of the air outlet panel.

[0010] By adopting the above technical solution, the light emitted by the color-changing light group can be directly shone on the hair surface through the light-transmitting hole in the center of the air outlet panel, thereby clearly indicating to the user whether the temperature of the hair surface is within a safe range.

[0011] A further feature of this invention is that the hair dryer body is provided with a handle, and the light-transmitting hole, the first receiving hole and the second receiving hole are arranged in a straight line along the length of the handle on the air outlet panel, and the first receiving hole is located between the light-transmitting hole and the second receiving hole.

[0012] By adopting the above technical solution, the light-transmitting hole, the first receiving hole, and the second receiving hole are arranged in a straight line in a concentrated area on the air outlet panel, making the functional modules more concentrated and the structure more aesthetically pleasing.

[0013] A further feature of this invention is that the center of the air outlet panel is recessed towards the electronic control board to form a funnel-shaped light-gathering port.

[0014] By adopting the above technical solution, the focusing port can concentrate the light emitted by the color-changing light group, thereby increasing the brightness of the light emitted by the color-changing light group on the surface of the hair.

[0015] A further feature of this invention is that the edge of the air outlet panel is provided with a plurality of air blowing holes that communicate with the air outlet, and a connecting rib is formed between adjacent air blowing holes.

[0016] By adopting the above technical solution, the airflow blown towards the air outlet is concentrated and compressed in the air blowing hole to form a higher wind speed, which improves the drying efficiency of hair in this utility model. The connecting rib can improve the structural strength of the air outlet panel at the air blowing hole position and extend the service life of the hair dryer.

[0017] A further feature of this invention is that the infrared receiving area of ​​the first infrared sensor and the infrared receiving area of ​​the second infrared sensor partially overlap.

[0018] By adopting the above technical solution, the infrared detection areas of the first infrared sensor and the second infrared sensor partially overlap, which can improve the detection accuracy of the overlapping area and avoid false detections by a single infrared sensor.

[0019] A further feature of this invention is that a sealing ring is provided between the edge of the air outlet panel and the inner wall of the air outlet.

[0020] By adopting the above technical solution, the sealing ring can prevent air leakage from the side of the hair dryer.

[0021] A further feature of this invention is that the air outlet panel is detachably installed at the air outlet position, the side wall of the air outlet panel is provided with a locking tongue, the blower body is provided with a locking engagement part on the inner wall of the air outlet, the locking engagement part is provided with a locking groove corresponding to the locking tongue, and the locking tongue and the corresponding locking groove are locked together to limit the axial movement of the air outlet panel.

[0022] By adopting the above technical solution, the air outlet panel can be detachably connected to the main body of the hair dryer, which facilitates the disassembly, replacement or cleaning of the air outlet panel.

[0023] In summary, this utility model has the following beneficial effects:

[0024] This hairdryer features a detachable air outlet panel at the air outlet of the main body. Air holes are formed along the edge of the air outlet panel. The main body includes an electronic control board and electrically connected color-changing light groups, a first infrared sensor, and a second infrared sensor. A light-transmitting hole is formed in the center of the air outlet panel corresponding to the color-changing light groups. First and second receiving holes are also formed on the air outlet panel corresponding to the first and second infrared sensors. The hot air blown by the hairdryer dries the hair. The first and second infrared sensors work together to achieve large-area temperature detection of the hair, avoiding missed detections and improving the safety of use. When either the first or second infrared sensor detects that the surface temperature of a localized area of ​​hair is too high, the electronic control board controls the color-changing light group to change color, simultaneously illuminating the hair surface with the corresponding light color. This allows the user to more intuitively observe the color change and promptly turn off the hairdryer or move it away from their head. Furthermore, even if one of the first or second infrared sensors is damaged, it does not affect the basic functions of the hairdryer. This design significantly improves the detection range of the hair area, preventing missed detections, and also promptly alerts the user to excessively high hair surface temperature by changing the color of the light group, thus preventing burns. Attached Figure Description

[0025] Figure 1 This is an overall structural diagram of the present invention.

[0026] Figure 2 This is a longitudinal sectional view of the present invention.

[0027] Figure 3 This is a utility model Figure 2 A magnified view of a portion of region A in the middle.

[0028] Figure 4 This is an exploded view of this utility model.

[0029] Figure 5 This is the control flowchart of this utility model.

[0030] In the diagram: 1. Hair dryer body; 10. Air outlet; 11. Handle; 12. Locking mating part; 121. Locking groove; 13. Motor; 14. Heating element; 2. Air outlet panel; 21. Light transmission hole; 22. First receiving hole; 23. Second receiving hole; 24. Focusing port; 25. Air blowing hole; 26. Connecting rib; 27. Locking tongue; 3. Electronic control board; 4. Color changing light group; 5. First infrared sensor; 6. Second infrared sensor; 7. Sealing ring. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings.

[0032] A hair dryer with a temperature sensing module, such as Figures 1-5As shown, the device includes a hair dryer body 1, which is equipped with an electronic control board 3. The electronic control board 3 is electrically connected to a color-changing light group 4, a first infrared sensor 5, and a second infrared sensor 6. The first infrared sensor 5 and the second infrared sensor 6 work together to detect temperature and control the color display of the light group 4 by the electronic control board 3. The infrared receiving areas of the first infrared sensor 5 and the second infrared sensor 6 partially overlap, which improves the detection accuracy of the overlapping area and avoids false detection by a single infrared sensor.

[0033] like Figures 2-4 As shown, the hair dryer body 1 has an air outlet 10, and an air outlet panel 2 corresponding to the air outlet 10. The air outlet panel 2 has a light-transmitting hole 21, a first receiving hole 22, and a second receiving hole 23. The color-changing light group 4 is installed in the light-transmitting hole 21, the first infrared sensor 5 is installed in the first receiving hole 22, and the second infrared sensor 6 is installed in the second receiving hole 23, so that the color-changing light group 4, the first infrared sensor 5, and the second sensor are firmly mounted on the air outlet panel 2, and the first infrared sensor 5 and the second sensor are exposed on the surface of the hair dryer panel through the corresponding first receiving hole 22 and second receiving hole 23, which improves the accuracy of hair temperature detection and reduces the possibility of missed detection and false detection. The air outlet panel 2 is designed as a disc structure, with the light-transmitting hole 21 located at the center of the air outlet panel 2. The first receiving hole 22 and the second receiving hole 23 are arranged radially around the light-transmitting hole 21, so that the light emitted by the color-changing light group 4 can directly illuminate the hair surface through the light-transmitting hole 21 at the center of the air outlet panel 2, thereby clearly indicating to the user whether the hair surface temperature is appropriate. The hair dryer body 1 is equipped with a handle 11. A light-transmitting hole 21, a first receiving hole 22, and a second receiving hole 23 are arranged in a straight line along the length of the handle 11 on the air outlet panel 2. The first receiving hole 22 is located between the light-transmitting hole 21 and the second receiving hole 23, making the light-transmitting hole 21, the first receiving hole 22, and the second receiving hole 23 linearly distributed in a concentrated area on the air outlet panel 2. This results in a more concentrated functional module and a more aesthetically pleasing structure. The center of the air outlet panel 2 is recessed towards the electronic control board 3 to form a funnel-shaped light-concentrating opening. 24. The focusing port 24 can concentrate the light emitted by the color-changing light group 4, thereby increasing the brightness of the light emitted by the color-changing light group 4 on the hair surface; the edge of the air outlet panel 2 is provided with a number of air blowing holes 25 that are connected to the air outlet 10, and a connecting rib 26 is formed between adjacent air blowing holes 25. The airflow blown towards the air outlet 10 is concentrated and compressed in the air blowing holes 25 to form a higher wind speed, thereby improving the drying efficiency of the hair in this utility model. The connecting rib 26 can improve the structural strength of the air outlet panel 2 at the air blowing hole 25 position and extend the service life of the hair dryer.

[0034] like Figures 1-4 As shown, a sealing ring 7 is provided between the edge of the air outlet panel 2 and the inner wall of the air outlet 10. The sealing ring 7 can prevent air leakage from the side of the hair dryer. The air outlet panel 2 is detachably installed at the air outlet 10. The side wall of the air outlet panel 2 is provided with a locking tongue 27. The hair dryer body 1 is provided with a locking engagement part 12 on the inner wall of the air outlet 10. The locking engagement part 12 is provided with a locking groove 121 corresponding to the locking tongue 27. The locking tongue 27 and the corresponding locking groove 121 lock and engage to limit the axial movement of the air outlet panel 2, so that the air outlet panel 2 can be detachably connected to the hair dryer body 1, which facilitates the disassembly, replacement or cleaning of the air outlet panel 2.

[0035] It should also be noted that in this embodiment, the hair dryer body 1 and handle 11 form an air duct. The bottom of the handle 11 is provided with an air inlet, and the two ends of the air duct are respectively connected to the air inlet and the air outlet 10. A motor 13, fan blades, and a heating element 14 are provided inside the air duct. The motor 13 drives the fan blades to rotate at high speed and drives airflow to be drawn into the air duct from the air inlet, heated by the heating element, and then blown out from the air outlet 10. Figure 5 As shown, the electronic control board 3 receives temperature signals from the first infrared sensor 5 and the second infrared sensor 6, and feeds back to control the rotation speed of the motor 13 of the hair dryer body 1 and the heating power of the heating component 14.

[0036] The basic working principle of this utility model is as follows: An air outlet panel 2 is detachably connected to the air outlet 10 of the hair dryer body 1. Air outlet holes 25 are opened along the edge of the air outlet panel 2. The hair dryer body 1 is equipped with an electronic control board 3 and a color-changing lamp group 4, a first infrared sensor 5, and a second infrared sensor 6 electrically connected to the electronic control board 3. A light-transmitting hole 21 is opened in the center of the air outlet panel 2 corresponding to the color-changing lamp group 4. A first receiving hole 22 and a second receiving hole 23 are opened on the air outlet panel 2 corresponding to the first infrared sensor 5 and the second infrared sensor 6. The hot air blown out by the hair dryer acts on the hair for drying. The first infrared sensor 5 and the second infrared sensor 6 cooperate to achieve large-area temperature detection of the hair, avoiding missed detections. To improve the safety of this invention, when the first infrared sensor 5 or the second infrared sensor 6 detects that the surface temperature of a local hair area is too high, the electronic control board 3 controls the color-changing light group 4 to change color and illuminate the hair surface with the corresponding light color, making it easier for the user to observe the color change more intuitively and turn off the hair dryer or move it away from the head in time. In addition, if one of the first infrared sensor 5 and the second infrared sensor 6 is damaged, it will not affect the basic function of the hair dryer. It can greatly improve the detection range of the hair area to avoid missed detection, and can also promptly remind the user that the hair surface temperature is too high by changing the color of the color-changing light group to prevent burns.

[0037] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A hair dryer with a temperature sensing module, comprising a hair dryer body (1), characterized in that: The main body (1) of the hair dryer is provided with an electronic control board (3). The electronic control board (3) is electrically connected to a color-changing lamp group (4), a first infrared sensor (5) and a second infrared sensor (6). The first infrared sensor (5) and the second infrared sensor (6) work together to detect the temperature and control the color of the light display of the color-changing lamp group (4) through the electronic control board (3).

2. A hair dryer with a temperature sensing module according to claim 1, characterized in that: The hair dryer body (1) is provided with an air outlet (10). The hair dryer body (1) is provided with an air outlet panel (2) corresponding to the air outlet (10). The air outlet panel (2) is provided with a light-transmitting hole (21), a first receiving hole (22) and a second receiving hole (23). The color-changing light group (4) is installed in the light-transmitting hole (21). The first infrared sensor (5) is installed in the first receiving hole (22). The second infrared sensor (6) is installed in the second receiving hole (23).

3. A hair dryer with a temperature sensing module according to claim 2, characterized in that: The air outlet panel (2) is configured as a disc structure, and the light-transmitting hole (21) is opened at the center of the air outlet panel (2). The first receiving hole (22) and the second receiving hole (23) are arranged around the light-transmitting hole (21) along the radial direction of the air outlet panel (2).

4. A hair dryer with a temperature sensing module according to claim 2, characterized in that: The hair dryer body (1) is provided with a handle (11). The light-transmitting hole (21), the first receiving hole (22) and the second receiving hole (23) are arranged in a straight line on the air outlet panel (2) along the length extension direction of the handle (11), and the first receiving hole (22) is located between the light-transmitting hole (21) and the second receiving hole (23).

5. A hair dryer with a temperature sensing module according to claim 2, characterized in that: The air outlet panel (2) is recessed in the middle towards the electronic control panel (3) to form a funnel-shaped light-concentrating port (24).

6. A hair dryer with a temperature sensing module according to claim 2, characterized in that: The air outlet panel (2) has several air holes (25) that connect to the air outlet (10) on its edge, and connecting ribs (26) are formed between adjacent air holes (25).

7. A hair dryer with a temperature sensing module according to claim 1, characterized in that: The infrared receiving area of ​​the first infrared sensor (5) and the infrared receiving area of ​​the second infrared sensor (6) partially overlap.

8. A hair dryer with a temperature sensing module according to claim 2, characterized in that: A sealing ring (7) is provided between the edge of the air outlet panel (2) and the inner wall of the air outlet (10).

9. A hair dryer with a temperature sensing module according to claim 2, characterized in that: The air outlet panel (2) is detachably installed at the air outlet (10). The side wall of the air outlet panel (2) is provided with a locking tongue (27). The blower body (1) is provided with a locking engagement part (12) on the inner wall of the air outlet (10). The locking engagement part (12) is provided with a locking groove (121) corresponding to the locking tongue (27). The locking tongue (27) and the corresponding locking groove (121) are locked together to limit the axial movement of the air outlet panel (2).

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