Hair dryer

Abstract

The utility model relates to a hair dryer which comprises a dryer body, a fixing seat is arranged at an air nozzle of the dryer body, the fixing seat is provided with an annular air outlet communicated with an air channel in the dryer body, a distance measuring module is arranged at the axis of the annular air outlet of the fixing seat, and the distance measuring direction of the distance measuring module is the same as the air outlet direction of the annular air outlet. The fixing base is provided with a light-transmitting baffle in the distance measuring direction of the distance measuring module, and the baffle is arranged close to one side of the annular air outlet so that the distance measuring module can be separated from the outer space of the machine body. The distance between the annular air outlet and hair and scalp can be measured through the distance measuring module arranged at the axis of the annular air outlet, the heating power of the hair drier is adjusted in real time according to the distance, constant temperature is achieved, and the safety of the distance measuring module is protected through the baffle. Meanwhile, objects such as hair tips of hair are prevented from flying near the distance measuring module in the using process of the hair drier, and the distance measuring effect is prevented from being affected; when the hair drier is used, red light and blue light are irradiated to hair and scalp through the red and blue light lamp beads.

Description

Technical Field

[0001] The utility model relates to the technical field of hair dryers, and particularly relates to a hair dryer. Background Art

[0002] A hair dryer can generate an air flow for drying hair by using the principle of electric heating. If you want to quickly dry your hair, you need to use hot air at a higher temperature. However, too high a temperature may damage the hair and scalp. Therefore, there are products of constant-temperature hair dryers on the market, which achieve precise adjustment of the hot air temperature by adjusting the internal heat generation.

[0003] The constant-temperature principle of the existing constant-temperature hair dryers is to adjust the heat generation according to the air flow temperature sensed by the thermostat inside the hair dryer, so that the air flow blown out by the hair dryer reaches the set range. This method can only control the temperature of the air flow blown out by the hair dryer to be constant. However, the distance between the air outlet of the hair dryer and the scalp and hair changes during use. When the air outlet of the hair dryer is close to the scalp and hair, the temperature of the air flow blown onto the scalp and hair is also higher. When the air outlet of the hair dryer is far from the scalp and hair, the temperature of the air flow blown onto the scalp and hair is also lower, thus affecting the use experience of the constant-temperature hair dryer. Summary of the Utility Model

[0004] In order to solve the deficiencies of the existing technology, the utility model provides a hair dryer, which senses the distance between the annular air outlet and the hair through a ranging module at the annular air outlet, so as to more precisely control the heat generation of the hair dryer.

[0005] The utility model provides a hair dryer, which includes a body. A fixed seat is arranged at the nozzle of the body. The fixed seat is provided with an annular air outlet communicated with the internal air duct of the body. A ranging module is arranged at the axis center of the annular air outlet of the fixed seat. The ranging direction of the ranging module is the same as the air outlet direction of the annular air outlet. A light-transmitting baffle is arranged on the fixed seat in the ranging direction of the ranging module. The baffle is arranged on the side close to the annular air outlet to separate the ranging module from the external space of the body.

[0006] In some embodiments, the ranging module includes a laser ranging element, and the laser ranging element is fixed on the fixed seat.

[0007] In some embodiments, the fixed seat is provided with a fixed groove, and an installation groove is arranged at the bottom of the fixed groove. The laser ranging element is fixed in the installation groove. The baffle is installed in the middle of the installation groove and is lower than the annular air outlet.

[0008] In some of these embodiments, an annular light-emitting module is provided in the fixing groove. The annular light-emitting module is located between the bottom of the fixing groove and the baffle. The annular light-emitting module includes a lamp holder and red and blue light beads. The lamp holder is annular, and the lamp holder is fixedly connected to the fixing groove. The laser ranging element is located at the circular hole in the center of the lamp holder. A plurality of red and blue light beads are provided on the lamp holder, and the plurality of red and blue light beads are arranged at equal angles in the circumferential direction of the ranging module. The irradiation directions of the plurality of red and blue light beads are the same as the air outlet direction of the annular air outlet.

[0009] In some of these embodiments, the height of the lamp holder in the fixing groove is higher than the height of the laser ranging element in the fixing groove.

[0010] In some of these embodiments, a lamp board is provided on one side of the lamp holder near the bottom of the fixing groove. The plurality of red and blue light beads are mounted on the lamp board. A shaped hole for the red and blue light beads to expose is opened on the lamp holder. An avoidance hole is provided at the axis center of the lamp board, and the laser ranging element is located at the avoidance hole.

[0011] In some of these embodiments, the inner diameter of the fixing groove gradually increases from the bottom of the groove to the opening direction.

[0012] In some of these embodiments, the red light wavelength of the red and blue light beads is 660nm, and the blue light wavelength is 440nm.

[0013] In some of these embodiments, the baffle includes a first light-transmitting part and a second light-transmitting part. The first light-transmitting part is located in the center of the baffle, and the second light-transmitting part is arranged in the circumferential direction of the first light-transmitting part. The light of the laser ranging element passes through from the first light-transmitting part, and the light of the red and blue light beads passes through from the second light-transmitting part. A partition part is provided between the first light-transmitting part and the second light-transmitting part, and the partition part blocks the light transmission between the first light-transmitting part and the second light-transmitting part.

[0014] In some of these embodiments, the fixing base is provided with an annular air-gathering groove, and the annular air-gathering groove is communicated with the annular air outlet and the internal air duct of the machine body.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The ranging module provided at the axis center of the annular air outlet can measure the distance between the annular air outlet and the hair and scalp, and adjust the heating power of the hair dryer in real time according to the distance to achieve constant temperature. The baffle separates the ranging module from the external space of the machine body to protect the safety of the ranging module, and at the same time avoids objects such as the tips of hair from floating near the ranging module during the use of the hair dryer, affecting the ranging effect; when the hair dryer is in use, red and blue light are irradiated onto the hair and scalp through the red and blue light beads. Description of the Drawings

[0016] Figure 1It is a schematic perspective view of the hair dryer according to an embodiment of the present application.

[0017] Figure 2 It is an exploded schematic view of the hair dryer according to an embodiment of the present application.

[0018] Figure 3 It is a schematic internal structure view of the hair dryer according to an embodiment of the present application.

[0019] Figure 4 It is one of the schematic perspective views of the fixing base according to an embodiment of the present application.

[0020] Figure 5 It is the second schematic perspective view of the fixing base according to an embodiment of the present application.

[0021] Reference numerals: 101, body; 102, nozzle; 103, handle; 104, annular air outlet;

[0022] 1, fixing base; 11, fixing groove; 12, mounting groove; 13, annular air collecting groove;

[0023] 2, ranging module; 21, laser ranging element;

[0024] 3, baffle; 31, first light-transmitting part; 32, second light-transmitting part; 33, partition part; 34, retaining ring;

[0025] 4, annular light-emitting module; 41, lamp holder; 411, shaped hole; 412, round hole; 413, pillar; 414, sinking groove; 42, lamp board; 421, avoidance hole; 43, red and blue light beads. Detailed implementation manners

[0026] The detailed implementation manners of the present utility model are introduced with reference to the accompanying drawings.

[0027] Refer to Figure 1 , in the figure is a schematic perspective view of the hair dryer. The upper part is the nozzle 102 of the hair dryer, and the lower part is the handle 103 of the hair dryer. An annular air outlet 104 is provided at the nozzle 102 of the hair dryer. A ranging module 2 is arranged at the axis of the annular air outlet 104. This ranging module 2 is protected by a light-transmitting baffle 3, isolating the ranging module 2 from the external environment.

[0028] Refer to Figures 1 to 5, a hair dryer, comprising a body 101. A fixing base 1 is provided at the nozzle 102 of the body 101. The fixing base 1 is provided with an annular air outlet 104 communicating with the internal air duct of the body 101. A ranging module 2 is provided at the axis of the annular air outlet 104 of the fixing base 1. The ranging direction of the ranging module 2 is the same as the air outlet direction of the annular air outlet 104. A light-transmitting baffle 3 is provided on the fixing base 1 in the ranging direction of the ranging module 2. The baffle 3 is arranged on the side close to the annular air outlet 104 to separate the ranging module 2 from the external space of the body 101.

[0029] In the hair dryer according to the embodiment of the present application, the ranging module 2 provided at the axis of the annular air outlet 104 can measure the distance between the annular air outlet 104 and the hair and scalp. According to the distance, the heating power of the hair dryer is adjusted in real time to achieve constant temperature. The ranging module 2 is separated from the external space of the body 101 by the baffle 3 to protect the safety of the ranging module 2. At the same time, it is avoided that objects such as the tips of the hair float close to the ranging module 2 during the use of the hair dryer, affecting the ranging effect.

[0030] In order to accurately measure the distance between the annular air outlet 104 and the hair and scalp, in this embodiment, refer to Figure 3 , the ranging module 2 includes a laser ranging element 21, and the laser ranging element 21 is fixed on the fixing base 1.

[0031] It can be understood that with such a setting, the laser ranging element 21 is small in volume and high in accuracy. The emitted laser irradiates the object in a straight line and then directly reflects back to the receiver. The measured value obtained has a small error and high accuracy, and can accurately measure the distance between the annular air outlet 104 and the hair and scalp. The irradiation direction of the laser ranging element 21 is perpendicular to the baffle 3, so that the laser emitted by the laser ranging element 21 can directly penetrate the baffle 3, and the laser reflected from the object also directly penetrates the baffle 3, so that the baffle 3 does not affect the ranging work of the laser ranging element 21.

[0032] In order to install the laser ranging element 21, in this embodiment, refer to Figures 1 to 4 , the fixing base 1 is provided with a fixing groove 11, and an installation groove 12 is provided at the bottom of the fixing groove 11. The laser ranging element 21 is fixed in the installation groove 12, and the baffle 3 is installed in the middle of the installation groove 12 and is lower than the annular air outlet 104.

[0033] It can be understood that with such a setting, the fixing base 1 is integrally injection-molded, integrally formed with the annular air outlet 104 and the fixing groove 11, and the installation groove 12 is integrally formed at the bottom of the fixing groove 11. Fixing the laser ranging element 21 in the installation groove 12 can ensure that the position and distance between the laser ranging element 21 and the annular air outlet 104 are fixed, thereby ensuring the accuracy of the measurement by the laser ranging element 21. At the same time, it is convenient for the installation of the laser ranging element 21.

[0034] In order to irradiate red and blue light onto the hair and scalp, in this embodiment, referring to Figures 1 to 4 , a ring-shaped light-emitting module 4 is provided in the fixing groove 11. The ring-shaped light-emitting module 4 is located between the bottom of the fixing groove 11 and the baffle 3. The ring-shaped light-emitting module 4 includes a lamp holder 41 and red and blue light beads 43. The lamp holder 41 is ring-shaped and fixedly connected to the fixing groove 11. The laser ranging element 21 is located at the circular hole 412 in the center of the lamp holder 41. A plurality of red and blue light beads 43 are provided on the lamp holder 41. The plurality of red and blue light beads 43 are arranged at equal angles in the circumferential direction of the ranging module 2. The irradiation directions of the plurality of red and blue light beads 43 are the same as the air outlet direction of the annular air outlet 104.

[0035] It can be understood that with such a setting, through the ring-shaped light-emitting module 4 inside the annular air outlet 104, red and blue light is irradiated onto the hair and scalp during the use of the hair dryer. Red and blue light has a certain auxiliary effect on the care of hair and scalp. Combined with the constant temperature function of the hair dryer, the user experience can be improved.

[0036] In order to prevent the red and blue light irradiated by the ring-shaped light-emitting module 4 from affecting the ranging function of the laser ranging element 21, in this embodiment, referring to Figure 3 , the height of the lamp holder 41 in the fixing groove 11 is higher than the height of the laser ranging element 21 in the fixing groove 11.

[0037] It can be understood that with such a setting, both the red and blue light beads 43 and the laser ranging element 21 irradiate in the same direction. The laser ranging element 21 is located behind the red and blue light beads 43, so that the red and blue light beads 43 do not irradiate light in the direction of the laser ranging element 21, avoiding affecting the ranging function of the laser ranging element 21.

[0038] In order to further prevent the red and blue light irradiated by the ring-shaped light-emitting module 4 from affecting the ranging function of the laser ranging element 21, in this embodiment, referring to Figure 2 and Figure 3 , a lamp board 42 is provided on one side of the lamp holder 41 near the bottom of the fixing groove 11. A plurality of red and blue light beads 43 are installed on the lamp board 42. A shaped hole 411 for the red and blue light beads 43 to expose is opened on the lamp holder 41. An avoidance hole 421 is provided at the axis center of the lamp board 42. The laser ranging element 21 is located at the avoidance hole 421.

[0039] It should be further noted that the outer wall of the lamp holder 41 is in contact with the inner wall of the fixing groove 11. The lamp holder 41 is provided with three support columns 413, and the three support columns 413 are in contact with the bottom of the fixing groove 11 and are fixed by screws, so that the lamp holder 41 can be stably installed in the fixing groove 11. The lamp holder 41 is provided with a sunk groove 414 on the side close to the annular air outlet 104, and the baffle 3 is fixed in the sunk groove 414, and the baffle 3 is fixed to the fixing groove 11 through the lamp holder 41.

[0040] It can be understood that with such a setting, the lamp board 42 is behind the lamp holder 41, and the shaped hole 411 of the lamp holder 41 serves as the light-emitting hole of the red and blue light beads 43. Under the limitation of the inner wall of the shaped hole 411, the red light and blue light emitted by the red and blue light beads 43 can only be irradiated forward and irradiated out through the baffle 3, and will not be transmitted to the laser ranging element 21, thereby avoiding the red light and blue light irradiated by the red and blue light beads 43 from affecting the ranging function of the laser ranging element 21.

[0041] In order to expand the irradiation range of the red and blue light beads 43, in this embodiment, referring to Figure 3 , the inner diameter of the fixing groove 11 gradually increases from the bottom of the groove to the opening direction.

[0042] It can be understood that with such a setting, the fixing groove 11 has a flared opening. The larger opening can prevent the inner wall of the fixing groove 11 from blocking the red light and blue light, avoiding affecting the irradiation of the red light and blue light, thereby increasing the range of the red light and blue light irradiated by the red and blue light beads 43, so that the red light and blue light can irradiate a larger area of hair and scalp.

[0043] In order to avoid the red light and blue light from being too irritating to the hair and scalp, in this embodiment, the red light wavelength of the red and blue light beads 43 is 660nm, and the blue light wavelength is 440nm.

[0044] It can be understood that with such a setting, the wavelength range of red light is usually between 620 and 780nm. Red light is in the longer wavelength band in the visible spectrum and has lower energy; the wavelength range of blue light is usually between 385 and 505nm, and blue light has the characteristics of short wavelength, high energy and strong penetration. Using red light with a wavelength of 660nm

[0045] In order to make the red light, blue light and the laser of the laser ranging element 21 not interfere with each other at the baffle 3, in this embodiment, referring to Figure 2 and Figure 3, the baffle 3 includes a first light-transmitting part 31 and a second light-transmitting part 32. The first light-transmitting part 31 is located at the center of the baffle 3, and the second light-transmitting part 32 is arranged in the circumferential direction outside the first light-transmitting part 31. The light of the laser ranging element 21 passes through the first light-transmitting part 31, and the light of the red and blue light beads 43 passes through the second light-transmitting part 32. A partition part 33 is arranged between the first light-transmitting part 31 and the second light-transmitting part 32, and the partition part 33 blocks the light transmission between the first light-transmitting part 31 and the second light-transmitting part 32.

[0046] It can be understood that with such a setting, the baffle 3 integrally forms the first light-transmitting part 31 and the second light-transmitting part 32. The first light-transmitting part 31 and the second light-transmitting part 32 are partitioned by an annular partition part 33. The partition part 33 is composed of two concentric retaining rings 34, and these two retaining rings 34 can be metal rings, which can completely block the propagation of light.

[0047] In order to guide the air flow in the hair dryer to be ejected from the annular air outlet 104, in this embodiment, refer to Figure 5 , the fixing base 1 is provided with an annular air gathering groove 13, and the annular air gathering groove 13 communicates with the annular air outlet 104 and the internal air duct of the body 101.

[0048] It can be understood that with such a setting, the groove width of the annular air gathering groove 13 gradually decreases in the direction from the internal air duct of the body 101 to the annular air outlet 104, guiding the air flow to gradually gather and compress, so that the air flow is ejected from the annular air outlet 104, and the air flow speed blown out by the hair dryer is increased.

[0049] The hair dryer in the embodiment of the present application protects the red and blue light beads 43 and the laser ranging element 21 through the light-transmitting baffle 3 without affecting the laser irradiation of the red light, blue light and the laser ranging element 21, improves the use safety, ensures accurate ranging, and is convenient for users to clean; measures the distance between the annular air outlet 104 and the hair and scalp through the laser ranging element 21, and adjusts the heating power of the hair dryer in real time according to the distance to realize constant temperature drying of the hair, and cooperates with the red light and blue light irradiated by the red and blue light beads 43 to care for the hair and scalp, improving the user experience.

[0050] The above does not impose any limitation on the technical scope of the present invention. Any modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A hair dryer, characterized in that: The invention comprises a machine body, wherein a fixing seat is arranged at the air nozzle of the machine body, the fixing seat is arranged with an annular air outlet connected with the air duct inside the machine body, the fixing seat is arranged with a ranging module at the axis center of the annular air outlet, the ranging direction of the ranging module is the same as the air outlet direction of the annular air outlet, the fixing seat is arranged with a light-transmitting baffle in the ranging direction of the ranging module, and the baffle is arranged close to one side of the annular air outlet to separate the ranging module from the external space of the machine body.

2. The hair dryer according to claim 1, characterized in that: The distance measuring module comprises a laser distance measuring element, and the laser distance measuring element is fixed on a fixing seat.

3. The hair dryer according to claim 2, characterized in that: The fixing seat is provided with a fixing groove, the bottom of the fixing groove is provided with a mounting groove, the laser ranging element is fixed in the mounting groove, and the baffle is installed in the middle of the mounting groove and is lower than the annular air outlet.

4. The hair dryer according to claim 3, characterized in that: An annular light-emitting module is arranged in the fixing groove, and the annular light-emitting module is located between the bottom of the fixing groove and the baffle. The annular light-emitting module includes a lamp holder and red and blue light lamp beads. The lamp holder is annular and fixedly connected to the fixing groove. The laser ranging element is located at the circular hole in the center of the lamp holder. A plurality of red and blue light lamp beads are arranged on the lamp holder at equal angles in the outer circumferential direction of the ranging module, and the irradiation direction of the plurality of red and blue light lamp beads is the same as the air outlet direction of the annular air outlet.

5. The hair dryer according to claim 4, characterized in that: The height of the lamp holder in the fixing groove is higher than the height of the laser distance measuring element in the fixing groove.

6. The hair dryer according to claim 4, characterized in that: The lamp holder is provided with a lamp board on one side near the bottom of the fixed groove, the multiple red and blue light lamp beads are installed on the lamp board, the lamp holder is provided with a shaped hole for exposing the red and blue light lamp beads, the axis of the lamp board is provided with a avoidance hole, and the laser ranging element is located at the avoidance hole.

7. The hair dryer according to claim 6, characterized in that: The inner diameter of the fixing groove gradually increases from the groove bottom to the opening direction.

8. The hair dryer according to claim 4, characterized in that: The red light wavelength of the red and blue light lamp beads is 660nm, and the blue light wavelength is 440nm.

9. The hair dryer according to claim 4, characterized in that: The baffle includes a first light-transmitting portion and a second light-transmitting portion, the first light-transmitting portion is located in the center of the baffle, and the second light-transmitting portion is arranged in the outer circumferential direction of the first light-transmitting portion. The light of the laser ranging element passes through the first light-transmitting portion, and the light of the red and blue light beads passes through the second light-transmitting portion. A partition portion is arranged between the first light-transmitting portion and the second light-transmitting portion, and the partition portion blocks the transmission of light between the first light-transmitting portion and the second light-transmitting portion.

10. The hair dryer according to claim 1, characterized in that: The fixing seat is provided with an annular wind gathering groove, and the annular wind gathering groove is communicated with the annular air outlet and the air duct inside the machine body.

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