Hair drier with cooling structure

Abstract

The utility model provides a hair dryer with a cooling structure. The hair dryer comprises a fan, a cooling structure and a cooling structure, which are arranged in a shell of the hair dryer, a distance sensor is mounted on one side, close to an air nozzle of the air blower, of the first fixing frame or in the first fixing frame; the air channel comprises a first air channel arranged in the first fixing frame and a second air channel formed outside the first fixing frame, the first air channel and the second air channel are both communicated with the air outlet end of the fan, and airflow in the first air channel is used for cooling the distance sensor; the air outlet is formed in the air nozzle, and the air outlet communicates with the first air duct and the second air duct. According to the blower with the cooling structure, the technical problem that the measurement precision is influenced by the large temperature rise of the distance sensor of the blower in the related technology is solved.

Description

Technical Field

[0001] This utility model relates to the field of automatic constant temperature hair dryer technology, specifically to a hair dryer with a cooling structure. Background Technology

[0002] An automatic thermostatic hair dryer is a hair dryer with a distance sensor that automatically maintains a constant temperature when blowing onto the scalp. Automatic thermostatic hair dryers usually use a distance sensor to detect the distance between the hair dryer and the scalp. The operating temperature of the distance sensor chip is generally required to be below 75℃. If the temperature is too high, it will cause the sensor to deviate or the measurement data to be inaccurate.

[0003] In existing technologies, distance sensors are typically installed at the front end or inside the heating wire. However, when the hair dryer is working normally, the high temperature generated by the heating wire can cause a significant temperature rise in the sensor, which can affect its measurement accuracy. This can lead to inaccurate sensor data and consequently affect the temperature control performance of the automatic thermostatic hair dryer.

[0004] Therefore, existing technologies need further development. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a hair dryer with a cooling structure to solve the technical problem in related technologies where the large temperature rise of the distance sensor in the hair dryer affects the measurement accuracy.

[0006] To achieve the above technical objectives, the present invention adopts the following technical solution: a hair dryer with a cooling structure is provided, comprising: a fan disposed within the hair dryer housing; a first fixing frame, wherein a distance sensor is installed on the side of the first fixing frame near the nozzle of the hair dryer or inside the first fixing frame; an air duct, comprising a first air duct disposed within the first fixing frame and a second air duct formed outside the first fixing frame, both the first air duct and the second air duct being connected to the air outlet of the fan, the airflow in the first air duct being used to cool the distance sensor; and an air outlet disposed at the nozzle, the air outlet being connected to the first air duct and the second air duct respectively.

[0007] Furthermore, the first air duct includes a cooling air inlet and a cooling air outlet. The cooling air inlet is located on the side of the first fixed frame away from the air nozzle, and the cooling air outlet is located on the side of the first fixed frame closer to the air nozzle.

[0008] Furthermore, the first fixed frame includes a base plate, which is located on the side of the first fixed frame away from the air nozzle. The base plate is positioned opposite to the distance sensor, and a cooling air inlet is provided on the base plate.

[0009] Furthermore, the axis of the cooling air inlet is collinear with the axis of the first fixed frame.

[0010] Furthermore, the first fixing frame includes a side wall that surrounds the first air duct, and a cooling air inlet is provided on the side of the side wall away from the air nozzle.

[0011] Furthermore, an air guide plate is connected to one end of the first fixed frame near the air nozzle, an air outlet is provided on the air guide plate, and a cooling air outlet is provided at the connection between the air guide plate and the first fixed frame.

[0012] Furthermore, the cooling air outlets include multiple outlets, which are arranged in a circular array around the axis of the first fixed frame.

[0013] Furthermore, the hair dryer includes a second fixed frame fitted onto the first fixed frame, a heating wire wound around the second fixed frame, and a second air duct formed between the outer surface of the second fixed frame and the hair dryer housing.

[0014] Furthermore, a cold air inlet is provided on the side of the second mounting bracket away from the air nozzle. The interior of the second mounting bracket is hollow, and the cold air inlet is connected to the cooling air inlet.

[0015] Beneficial effects:

[0016] 1. In this embodiment of the hair dryer, the airflow in the first air duct can flow through the distance sensor and is used to cool the distance sensor. The second air duct can heat the airflow to meet the hot air requirements of the hair dryer. By completely separating the first and second air ducts, a cold air duct is formed inside the first air duct and a hot air duct is formed inside the second air duct, forming a dual air duct path. This avoids the influence of high-temperature hot air on the airflow in the first air duct and further ensures that the airflow in the first air duct always maintains a low temperature. This allows the airflow in the first air duct to effectively remove the heat generated around the distance sensor and prevent its temperature from rising too high. The cold and hot air output from the first and second air ducts mix at the air outlet and are blown onto the scalp. Compared with traditional constant temperature hair dryers, a cold air path is specially added to cool the distance sensor, avoiding the distance sensor temperature from rising during the operation of the hair dryer and affecting the measurement accuracy. This solves the technical problem in related technologies where the distance sensor of the hair dryer experiences a large temperature rise, affecting the measurement accuracy.

[0017] 2. In the hair dryer with a cooling structure in this embodiment, the air entering the hair dryer housing is divided into two parts. One part of the airflow enters the inner cavity of the first fixed frame after passing through the cooling air inlet at the rear end of the first fixed frame, and then flows out from the cooling air outlet at the front end, forming a first air duct inside the first fixed frame. The airflow in the first air duct is relatively cool air, which cools the distance sensor located at the front end or inside the first fixed frame. The other part of the airflow passes through the second air duct path between the second fixed frame and the hair dryer housing. After being heated by the heating wire, hot air is formed in the second channel. The hot air and the cool air flowing out of the cooling air outlet mix at the outlet and are then blown out, working together on the scalp surface. The hair dryer with a cooling structure in this embodiment, through the optimized design of the hair dryer's air outlet structure, achieves a dedicated cool air circulation path for the sensor location while ensuring the normal heating and air outlet functions of the main air duct. This effectively reduces the temperature around the sensor. This structure not only improves the stability of the sensor's working environment but also ensures its detection accuracy and operational reliability during long-term use, fully leveraging the role of cooling protection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the internal structure of a hair dryer with a cooling structure used in an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the first fixing frame of the hair dryer with a cooling structure used in an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the first fixing frame of the hair dryer with a cooling structure used in this embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the first fixing bracket of the hair dryer with a cooling structure used in an embodiment of this utility model from another perspective;

[0022] Figure 5 This is a schematic diagram of the air duct principle of a hair dryer with a cooling structure used in an embodiment of this utility model.

[0023] The above figures include the following reference numerals:

[0024] 10. Hair dryer housing; 20. Nozzle; 1. First fixing bracket; 11. Base plate; 12. Air guide plate; 13. Side wall; 2. Distance sensor; 3. First air duct; 31. Cooling air inlet; 32. Cooling air outlet; 4. Second air duct; 5. Air outlet; 6. Second fixing bracket; 61. Cold air inlet. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0026] According to an embodiment of this utility model, a hair dryer with a cooling structure is provided. Please refer to [link / reference]. Figures 1 to 5 The device includes: a fan disposed within the hair dryer housing 10; a first fixing frame 1, wherein a distance sensor 2 is installed on the side of the first fixing frame 1 near the nozzle 20 of the hair dryer or inside the first fixing frame 1; an air duct, comprising a first air duct 3 disposed within the first fixing frame 1 and a second air duct 4 formed outside the first fixing frame 1, both the first air duct 3 and the second air duct 4 being connected to the air outlet of the fan, and the airflow in the first air duct 3 being used to cool the distance sensor 2; and an air outlet 5 disposed at the nozzle 20, the air outlet 5 being connected to the first air duct 3 and the second air duct 4 respectively.

[0027] In this embodiment, the airflow in the first air duct 3 can flow through the distance sensor 2, and the airflow in the first air duct 3 is used to cool the distance sensor 2. The second air duct 4 can heat the airflow to meet the hot air requirements of the hair dryer. By completely separating the first air duct 3 and the second air duct 4, a cold air duct is formed inside the first air duct 3 and a hot air duct is formed inside the second air duct 4, forming a dual air duct path. This avoids the influence of high-temperature hot air on the airflow in the first air duct 3, and further ensures that the airflow in the first air duct 3 always maintains a low temperature. This allows the airflow in the first air duct 3 to effectively remove the heat generated around the distance sensor 2, preventing its temperature from rising too high. The first air duct 3 and the second air duct 4, along with the output cold and hot air, mix at the air outlet 5 and blow it onto the scalp. Compared with traditional constant temperature hair dryers, a dedicated cold air path is added to cool the distance sensor 2, preventing the temperature of the distance sensor 2 from rising during the operation of the hair dryer and affecting the measurement accuracy. This solves the technical problem in related technologies where the distance sensor of the hair dryer experiences a large temperature rise, affecting the measurement accuracy.

[0028] In the hair dryer with a cooling structure in this embodiment, see... Figure 1The first air duct 3 includes a cooling air inlet 31 and a cooling air outlet 32. The cooling air inlet 31 is located on the side of the first fixed frame 1 away from the nozzle 20, and the cooling air outlet 32 ​​is located on the side of the first fixed frame 1 closer to the nozzle 20. In order to form a first air duct inside the first fixed frame 1 so that the airflow in the first air duct can pass through the distance sensor, a cooling air inlet 31 and a cooling air outlet 32 ​​are opened in the first fixed frame 1, so that unheated airflow can enter the first air duct.

[0029] In the hair dryer with a cooling structure in this embodiment, see... Figure 2 The first mounting bracket 1 includes a base plate 11, which is located on the side of the first mounting bracket 1 away from the air nozzle 20. The base plate 11 is positioned opposite to the distance sensor 2, and a cooling air inlet 31 is provided on the base plate 11. In this way, cold air enters the first mounting bracket 1 through the cooling air inlet 31, so that the cold air is directed as directly as possible towards the distance sensor 2, thereby improving the cooling effect of the distance sensor.

[0030] In the hair dryer with a cooling structure in this embodiment, see... Figure 3 The axis of the cooling air inlet 31 is collinear with the axis of the first fixed frame 1. In order to ensure the measurement effect, the distance sensor 2 is generally set on the axis of the first fixed frame 1, and the axis of the cooling air inlet 31 is also collinear with the axis of the first fixed frame 1, so that the cold air is as directly as possible to the distance sensor 2, thereby further improving the cooling efficiency.

[0031] In other embodiments of the hair dryer with a cooling structure, the first mounting bracket 1 includes a side wall 13, which surrounds the first air duct 3. A cooling air inlet 31 is provided on the side of the side wall 13 away from the nozzle 20. Thus, the position of the cooling air inlet 31 can be adjusted according to the internal structure of the hair dryer. For example, the cooling air inlet 31 can be placed on the side wall 13 of the first mounting bracket 1, or at the connection between the side wall 13 and the base plate 11. Both arrangements allow cold air to enter the first mounting bracket 1 from the cooling air inlet 31 and blow towards the distance sensor 2, thereby improving the cooling effect of the distance sensor.

[0032] In the hair dryer with a cooling structure in this embodiment, see... Figure 1The first fixed frame 1 is connected to an air guide plate 12 near the air nozzle 20. An air outlet 5 is provided on the air guide plate 12, and a cooling air outlet 32 ​​is provided at the connection between the air guide plate 12 and the first fixed frame 1. In this way, the cooling air outlet 32 ​​is located at the connection between the air guide plate 12 and the first fixed frame 1, and the air inlet and outlet of the cold air are located at the two ends of the first fixed frame 1, thereby increasing the flow path of the cold air in the first fixed frame 1, further improving the cooling effect of the distance sensor, and improving the cooling effect of the distance sensor 2. Both cold air and hot air can flow along the air guide plate 12 to the air outlet 5.

[0033] In the hair dryer with a cooling structure in this embodiment, see... Figure 1 The cooling air outlet 32 ​​includes multiple outlets, which are arranged in a circular array around the axis of the first fixed frame 1. In this way, cool air can be output to the air outlet 5 through any one of the cooling air outlets 32.

[0034] In some embodiments, the cooling air outlet 32 ​​is a single slot, and the cooling air outlet 32 ​​can also be an annular structure or a semi-annular structure, both of which can complete the function of cooling air outlet.

[0035] In the hair dryer with a cooling structure in this embodiment, see... Figure 1 The hair dryer includes a second fixed frame 6 fitted onto a first fixed frame 1. A heating wire is wound around the second fixed frame 6, and a second air duct 4 is formed between the outer surface of the second fixed frame 6 and the hair dryer housing 10. In this way, the airflow entering the second air duct is heated by the heating wire to generate hot air. By setting the first fixed frame 1 and the second fixed frame 6, the first air duct and the second air duct can be separated, avoiding excessively high temperatures in the first air duct that would affect the cooling effect.

[0036] In the hair dryer with a cooling structure in this embodiment, see... Figure 1 A cold air inlet 61 is provided on the side of the second fixed frame 6 away from the air nozzle 20. The interior of the second fixed frame 6 is hollow, and the cold air inlet 61 is connected to the cooling air inlet 31. In order to allow the airflow to reach the first air duct, a cold air inlet 61 is provided on the second fixed frame 6, and the interior of the second fixed frame 6 is hollow, thereby forming a cold air flow path, allowing the airflow to pass through the second fixed frame 6 to reach the first air duct.

[0037] Understandably, ventilation channels can be created or made to avoid these channels on other internal parts, depending on the internal structure of the hair dryer.

[0038] In the hair dryer with a cooling structure in this embodiment, see... Figure 5The air entering the hair dryer housing is divided into two parts. One part of the airflow enters the inner cavity of the first fixed frame 1 after passing through the cooling air inlet 31 at the rear end of the first fixed frame 1, and then flows out from the cooling air outlet 32 ​​at the front end, forming a first air duct inside the first fixed frame 1. The airflow in the first air duct is relatively cold air at a low temperature. The airflow in the first air duct cools the distance sensor 2 located at the front end of the first fixed frame 1 or inside the first fixed frame 1. The other part of the airflow passes through the second air duct path between the second fixed frame 6 and the hair dryer housing. After being heated by the heating wire, hot air is formed in the second air duct 4. The hot air and the cold air flowing out of the cooling air outlet 32 ​​mix at the air outlet 5 and are then blown out of the air outlet 5, working together on the scalp surface. The hair dryer with a cooling structure in this embodiment optimizes the airflow path structure of the hair dryer. While ensuring the normal heating and airflow functions of the main air duct, it achieves a cold air circulation path specifically for the sensor location, thereby effectively reducing the temperature around the sensor. This structure not only improves the stability of the sensor's working environment, but also ensures its detection accuracy and operational reliability during long-term use, fully leveraging the role of cooling protection.

[0039] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0040] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0041] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0042] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0043] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A hair dryer with a cooling structure, characterized in that, Including those disposed within the hair dryer housing (10): Fan; A first fixing bracket (1) is installed on the side of the first fixing bracket (1) near the nozzle (20) of the blower or inside the first fixing bracket (1). The air duct includes a first air duct (3) disposed in the first fixed frame (1) and a second air duct (4) formed outside the first fixed frame (1). Both the first air duct (3) and the second air duct (4) are connected to the air outlet of the fan. The airflow in the first air duct (3) is used to cool the distance sensor (2). Air outlet (5) is located at the nozzle (20) and is connected to the first air duct (3) and the second air duct (4) respectively.

2. The hair dryer with a cooling structure according to claim 1, characterized in that, The first air duct (3) includes a cooling air inlet (31) and a cooling air outlet (32). The cooling air inlet (31) is located on the side of the first fixed frame (1) away from the air nozzle (20), and the cooling air outlet (32) is located on the side of the first fixed frame (1) close to the air nozzle (20).

3. The hair dryer with a cooling structure according to claim 2, characterized in that, The first fixing frame (1) includes a base plate (11), which is located on the side of the first fixing frame (1) away from the air nozzle (20). The base plate (11) is arranged opposite to the distance sensor (2), and the cooling air inlet (31) is provided on the base plate (11).

4. The hair dryer with a cooling structure according to claim 3, characterized in that, The axis of the cooling air inlet (31) is collinear with the axis of the first fixing frame (1).

5. The hair dryer with a cooling structure according to claim 2, characterized in that, The first fixing frame (1) includes a side wall (13) which is arranged around the first air duct (3). The cooling air inlet (31) is provided on the side of the side wall (13) away from the air nozzle (20).

6. The hair dryer with a cooling structure according to claim 2, characterized in that, The first fixed frame (1) is connected to a guide plate (12) at one end near the nozzle (20). The guide plate (12) has an air outlet (5) and a cooling air outlet (32) is provided at the connection between the guide plate (12) and the first fixed frame (1).

7. The hair dryer with a cooling structure according to claim 2, characterized in that, The cooling air outlet (32) includes multiple outlets, which are arranged in a circular array around the axis of the first fixed frame (1).

8. The hair dryer with a cooling structure according to claim 2, characterized in that, The hair dryer includes a second fixing frame (6) sleeved on the first fixing frame (1), a heating wire is wound on the second fixing frame (6), and a second air duct (4) is formed between the outer surface of the second fixing frame (6) and the hair dryer housing (10).

9. The hair dryer with a cooling structure according to claim 8, characterized in that, The second fixing frame (6) has a cold air inlet (61) on the side away from the air nozzle (20). The second fixing frame (6) is hollow inside, and the cold air inlet (61) is connected to the cooling air inlet (31).

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