Optical heat type wind comb

Abstract

The application relates to a photo-thermal hair dryer, which comprises a shell, a main control board and a fan installed in the shell; the photo-thermal hair dryer comprises a comb head and a handle, and the shell is correspondingly divided into a comb head shell and a handle shell; one or more lamp tubes electrically connected with the main control board are installed in the comb head shell; the lamp tubes are tungsten filament lamp tubes and / or carbon filament lamp tubes, and the light waves emitted by the lamp tubes contain near-infrared light; the comb head shell is provided with a group of comb teeth, the comb teeth are used for dividing hair into small parts and suspending the hair to form a hair area; the comb head shell is provided with one or more ventilation channels; the fan, the outer part of the lamp tubes and the ventilation channels are in air flow communication; and the ventilation channels are in air flow communication with the hair area during use; under the action of the fan, cold air flows to the lamp tubes and is heated into hot air, the hot air passes through the hair area to perform hot air drying or blows away the moisture on the surface of the hair and then flows into the ventilation channels; the near-infrared light emitted by the lamp tubes irradiates the hair area at a short distance to perform near-infrared auxiliary drying.

Description

Technical Field

[0001] This application relates to the field of hair styling tools technology, and in particular to a photothermal comb. Background Technology

[0002] Traditional hair dryers work by drawing in cold air through a fan and blowing it out through a high-power heating element. The cold air is then heated and blown rapidly onto the hair through the outlet. The moisture in the hair is either heated and evaporated or carried away by the rapidly flowing hot air, thus achieving the purpose of drying the hair. However, traditional hair dryers have high power consumption and high heating wire / plate temperatures, increasing the risk of burns and hair damage during use. The higher the power and temperature of the hair dryer, the more likely it is to damage the hair and scalp. When hair is wet, its outer layer, the cuticle, is open (the cuticle protects the nutrients inside the hair). When the cuticle is open, the high temperature directly acts on the hair fiber and hair core, causing the medulla to evaporate moisture quickly (the medulla affects the shine and color of hair, and high temperature changes its dyes), resulting in dullness, yellowing, and split ends. The higher the power and temperature of the hair dryer, the higher the required fan speed is when hot air is applied to the hair, resulting in greater noise and increased cost. To meet the power requirements of high-power heating and high-speed fans, the device cannot be wirelessly powered, increasing storage inconvenience and significantly reducing ease of use.

[0003] Hot air combs are an improved version of hair dryers. These hair care tools not only dry hair but also comb it and massage the scalp, making them an essential hair styling tool. However, current hot air combs connect the comb head and body via an interference fit and heat setting. This interference fit requires high precision in the machining tolerances of both the comb head and body, making relative rotation difficult and hard to control, resulting in low efficiency and cumbersome operation. Some existing hot air combs also use infrared lamps in the body for sterilization, but the light illuminating the comb head is too diffused to be effective. Furthermore, existing hot air combs have a complex structure and are not convenient to carry. Summary of the Invention

[0004] The purpose of this application is to provide a photothermal hair comb that features low power consumption, high efficiency, hair care function, and portability.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] A photothermal comb includes a housing, a main control board installed inside or on the housing, and a fan electrically connected to the main control board. The photothermal comb includes a comb head and a handle. The housing is divided into a comb head housing and a handle housing. One or more lamps electrically connected to the main control board are installed inside the comb head housing. The lamps are tungsten filament lamps and / or carbon filament lamps, emitting near-infrared light. The comb head housing has a set of comb teeth for dividing hair into smaller sections and suspending the hair to form hair zones. The comb head housing has one or more ventilation channels. The fan, the outside of the lamps, and the ventilation channels are interconnected. During use, the ventilation channels are connected to the airflow in the hair zones. During use, under the action of the fan, cold air flows towards the lamps and is heated into hot air. The hot air passes through the hair zones for hot air drying or blows away moisture from the hair surface before flowing into the ventilation channels. The near-infrared light emitted by the lamps irradiates the hair zones at close range for near-infrared assisted hair drying.

[0007] Furthermore, a battery electrically connected to the main control board is installed in the internal cavity of the outer shell; the light generated by the lamp tube includes near-infrared light of 900-2500nm, which is used to irradiate hair at close range; the photothermal comb is generally in the shape of a straight rod, with the comb head located at the front end of the straight rod and the handle located at the rear end of the straight rod.

[0008] In some embodiments, the main control board and battery are installed inside the handle; the fan is installed inside the handle or comb; the fan includes a fan housing and rotating blades inside the fan housing; the fan housing forms a vent or vents are formed at both ends of the fan, the vents serve as the air inlet and outlet of the fan and are connected to the airflow inside the fan housing to form the air duct of the fan; the air duct of the fan is connected to the airflow outside the lamp tube surface and the ventilation channel.

[0009] In some embodiments, the comb housing is provided with one or more lamp slots, and one lamp is installed in each lamp slot; each lamp slot has a side opening, which serves as a ventilation port and a light outlet for the lamp; in use, the heat energy of the lamp's light field heats the cold air flowing through the lamp to form hot air, which is blown from the side opening of the lamp slot toward the hair area and enters the ventilation channel, and the light emitted by the lamp illuminates the hair area through the side opening.

[0010] In some embodiments, the side opening of the lamp tube groove is provided along the length direction of the lamp tube; the side opening of the lamp tube groove is adapted to the length of the ventilation channel; the lamp tube groove or the side opening is provided parallel to the ventilation channel.

[0011] The comb housing is provided with two lamp tube slots; the comb housing forms one or more ventilation channels between the two lamp tube slots; the lamp tube slots or the lamp tubes are parallel to each other.

[0012] In some embodiments, the ventilation channel is an inclined groove that is tilted toward the lamp tube so that the air heated by the lamp tube can flow smoothly into the ventilation channel after passing through the hair area.

[0013] In some embodiments, the fan is installed inside the handle; an air inlet is provided on the handle housing, and one vent of the fan is located at the air inlet of the handle housing; the fan is coaxially installed inside the handle housing; in use, under the action of the fan, ambient air is drawn into the fan from the air inlet on the handle housing and the vent of the fan, and flows from the other vent of the fan to the lamp tube to be heated into hot air; the hot air is blown towards and passes through the hair area into the ventilation channel, and flows out of the ventilation channel to the external environment.

[0014] In some embodiments, the fan is installed inside the comb housing, the fan inlet is located at the ventilation channel and the airflow is connected to the ventilation channel, and the fan outlet is connected to the external airflow of the lamp tube. In use, ambient air is drawn into the fan from the hair area through the ventilation channel and the fan inlet, and discharged from the fan outlet to the lamp tube where it is heated into hot air. The hot air is blown towards and passes through the hair area and then flows into the ventilation channel. It is drawn into the fan again from the ventilation channel and the fan inlet to complete one cycle. This cycle continues, and the air circulates to the lamp tube to circulate heating and act on the hair area.

[0015] In some embodiments, the comb housing is provided with an air guide shroud, which covers the fan and the lamp tube, and guides the air flowing out of the fan's outlet to the lamp tube.

[0016] In some embodiments, the comb housing is provided with an auxiliary ventilation port, which connects the external environment with the air inlet of the fan; in use, under the action of the fan, ambient cold air is drawn into the fan from the auxiliary ventilation port and the air inlet of the fan; the fan is installed perpendicular to the axial direction of the photothermal comb.

[0017] The beneficial effects of this application are:

[0018] This application's photothermal hair dryer boasts low power consumption and high efficiency: Due to the dual energy sources (light energy + heat energy), the heat source can get infinitely close to the hair, and its temperature is lower than that of traditional hair dryers. This eliminates heat and power losses caused by the distance between the hair and the hair, achieving the dual benefits of low power consumption and high-efficiency hair drying. This application's photothermal hair dryer is also portable: With the dual benefits of reduced power consumption and increased efficiency, a wireless battery design is possible, greatly increasing the product's convenience and storage capacity. Furthermore, this application's photothermal hair dryer has hair care functions: Due to the effect of near-infrared light energy, the external heat energy required for hair moisture evaporation is greatly reduced; this prevents nutrient loss from the hair cuticle and medulla caused by high temperatures, effectively protecting the hair structure. Attached Figure Description

[0019] Figure 1-2 These are perspective views of the photothermal comb of the first embodiment of this application from different angles.

[0020] Figure 3 This is an exploded view of the photothermal air comb according to the first embodiment of this application.

[0021] Figure 4 This is a cross-sectional view of the photothermal air comb according to the first embodiment of this application.

[0022] Figure 5 This is a perspective view of the structure of the photothermal comb section of the first embodiment of this application.

[0023] Figure 6-7 This is a cross-sectional view of the photothermal air comb head according to the first embodiment of this application.

[0024] Figure 8-9 These are perspective views of the photothermal comb of the second embodiment of this application from different angles.

[0025] Figure 10 This is a cross-sectional view of the photothermal air comb according to the second embodiment of this application.

[0026] Figure 11 This is a cross-sectional view of the photothermal air comb head according to the second embodiment of this application.

[0027] Figure 12 This is an exploded view of the photothermal air comb according to the second embodiment of this application. Detailed Implementation

[0028] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0029] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0030] Although terms such as "first," "second," etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the elements, components, regions, layers, or segments discussed below may be referred to as second elements, components, regions, layers, or segments without departing from the teachings of the exemplary embodiments.

[0031] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "rear," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0032] The endpoints and any values ​​disclosed in this application are not limited to the precise range or value, and such ranges or values ​​should be understood to include values ​​close to such ranges or values. For numerical ranges, the endpoint values ​​of the various ranges, the endpoint values ​​of the various ranges and individual point values, and individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed herein.

[0033] Reference Figure 1-12 This application relates to a photothermal comb 100, which is a straight rod-shaped whole consisting of a comb head 1 and a handle 10. It includes a housing, a main control board 20 installed in the internal cavity of the housing, and a lamp tube 30, a fan 40, and a battery 50 electrically connected to the main control board 20. The housing is divided into a comb head housing and a handle housing. A through hole 14 is provided on the housing to install a power interface 21. The charging interface 21 is located on or electrically connected to the main control board 20. The power interface 21 passes through the through hole in the housing to connect to an external power source for charging the battery 50 or supplying power to the main control board 20. The photothermal comb 100 also includes a button group (not shown) electrically connected to the main control board 20 for operating the photothermal comb 100 or setting functions. The comb head 1 has a lamp tube slot 15, in which a lamp tube 30 is installed. The comb 1 is also equipped with a set of comb teeth 13 for dividing the hair into small sections. The hair hangs on the comb teeth or in the gaps between the comb teeth to form hair zones, and the gaps between the hairs are ventilated. The side of the lamp tube slot facing the comb teeth is set with an opening 150, which serves as a ventilation port and a light outlet. Hot air heated by the lamp tube 30 is blown through the opening 150 onto the hair zones on the comb teeth and passes through the gaps between the hairs. The light emitted by the lamp tube 30 illuminates the hair zones through the opening 150. The lamp tube 30 is a tungsten filament lamp tube or a carbon fiber lamp tube, and there is at least one lamp tube. The heat and light energy of the lamp tube 30 are used for drying hair. A set of comb teeth 13 can be arranged in multiple rows, with intervals between the rows of comb teeth. The intervals between the comb teeth include the intervals between adjacent single comb teeth and the intervals between two adjacent rows of comb teeth. The light generated by the lamp tube 30 is emitted from the side opening 150 of the lamp tube slot 15 to irradiate the hair area for light drying. Hot air flowing out from the side opening 150 inside the lamp tube slot 15 blows onto the hair area for hot air drying. The comb head housing is provided with a ventilation channel 11, which can be configured to correspond to the intervals between each row of comb teeth and is connected to the lamp tube slot 15 through the opening 150, the intervals between the comb teeth, and the air passages in the hair area on the comb teeth.

[0034] The tungsten filament lamp tube or carbon fiber lamp tube 30 uses tungsten filament or carbon fiber as the filament, i.e., the light-emitting material. The filament is installed inside a transparent lamp cover and emits light when electricity is applied. The lamp cover is kept in a vacuum or filled with a low-pressure inert gas or halogen gas to prevent the filament from oxidizing at high temperatures. When the transparent lamp cover of the tungsten filament lamp tube or carbon fiber lamp tube is filled with halogen gases such as iodine or bromine, a halogen lamp (also known as a tungsten halogen lamp) is obtained. The tungsten filament lamp tube or carbon fiber lamp tube belongs to incandescent lamp tubes and adopts the structure of an incandescent lamp. Using tungsten filament and / or carbon fiber as the light-emitting material, i.e., the filament, and filling the transparent lamp cover with a certain proportion of inert gas or halogen gas can increase the life of the lamp tube. The spectral distribution of the tungsten filament and / or carbon fiber lamp tube can be changed by adjusting the gas pressure, gas ratio, current pulse, or supply voltage. Preferably, the carbon tungsten filament lamp tube and / or carbon filament lamp tube 30 of the photothermal comb 100 of this application uses a halogen lamp tube.

[0035] The heat generated by the tungsten filament lamp or carbon fiber lamp 30 can heat the cold air drawn in by the fan 40 into hot air. When the hot air is blown onto the hair, it evaporates or removes moisture, thus drying the hair. On the other hand, the light generated by the tungsten filament lamp or carbon fiber lamp 30, which contains 900-2500nm near-infrared light, can be absorbed by water molecules and cause them to vibrate at high frequency, generating internal heat and causing the water to evaporate. By using its near-infrared light waves to irradiate the wet hair, the water molecules on the surface of the hair generate internal heat and evaporate, thus achieving the effect of assisting in drying the hair.

[0036] The photothermal comb 100 of this application uses one or more tungsten filament lamps or carbon fiber lamps 30 installed in the comb head 1. Specifically, the comb head housing is provided with a lamp slot 15, and the lamps 30 are installed in the lamp slot 15. The side of the lamp slot 15 is provided with an opening 150 along the length of the lamp, the opening 150 facing the comb teeth 13 to communicate with the airflow between the comb teeth and the hair area, and to allow the light emitted by the lamps 30 in the lamp slot 15 to illuminate the hair area on the comb teeth. The opening 150 serves as a ventilation port and also as a light outlet for the lamps 30, allowing the light from the tungsten filament lamps or carbon fiber lamps 30 to shine out from the opening 150 to illuminate the hair area at close range. The principle of lamp 30 setting is that the lamps 30 can be infinitely close to the hair when drying. The comb head 1 can be equipped with multiple carbon tungsten filament lamps and / or carbon filament lamps 30, and multiple lamp slots 15 can be provided, with one lamp 30 installed in each lamp slot 15. Each lamp tube slot 15 has an opening 150 along its length on its sidewall. It can be understood that the opening 150 can take many forms; for example, it can be a long slot or an open opening, or it can be a set of through holes.

[0037] The main control board 20 and battery 50 are installed inside the handle 10 (handle housing). A partition 17 can be installed inside the handle housing to separate the main control board 20 and battery 50 from the fan 40, so as to seal and protect the main control board 20 and battery 50.

[0038] The fan 40 can be installed inside the handle 10 or inside the comb 1. The fan 40 includes a housing and rotating blades inside the housing. Ventilation openings 42 and 43 are located at both ends of the fan housing (i.e., the top and bottom ends along the fan's rotation axis), serving as the fan's air inlet and outlet, respectively, and communicating with the internal cavity of the fan housing to form the fan's air duct. In other embodiments, the ventilation openings 42 and 43 are also located on the side facade of the fan housing.

[0039] In some embodiments, the outer casing of the photothermal comb 100 may also be provided with ventilation holes 12. The ventilation holes 12 may be provided in the comb housing or the handle housing. External air flows into the photothermal comb 100 through the ventilation holes 12. In this case, the ventilation holes 12 serve as air inlets, and the ventilation channels 11 provided in the comb housing serve as air outlets. In other embodiments, the ventilation holes 12 may not be provided. In this case, the ventilation channels 11 may serve as circulating ventilation outlets for both air intake and exhaust.

[0040] Battery 50 can be a rechargeable battery or a removable, replaceable primary battery. It can be connected to an external power source via power interface 21 to directly power the photothermal comb 100 or charge battery 50.

[0041] In some embodiments, one end of the lamp tube groove 15 can be formed as an air inlet 151, which is connected to the air duct of the fan 40. The lamp tube groove 15, by providing the air inlet 151 and the side opening 150, allows the airflow of the lamp tube groove (i.e., the space outside the lamp tube) 15 to be connected to the air duct of the fan 40, the spacing of the comb teeth, and the hair area on the comb teeth. The air inlet 151 and the opening 150 of the lamp tube groove 15 can be ventilation holes set in different positions, or they can be shared, for example, the opening 150 can serve as both an air inlet and an air outlet. The airflow path 200 of the photothermal comb 100 is formed by the air passage 12, the fan 40, the lamp tube groove 15 (the space outside the lamp tube 30), the spacing of the comb teeth and the hair area on the comb teeth, and the ventilation channel 11. In other embodiments, the spacing between the comb teeth and the hair area on the comb teeth, the ventilation channel 11, the air duct of the fan 40, and the lamp slot 15 form a circulating air path as the hair drying airflow path 200 of the photothermal comb 100. The hair on the comb teeth is dried by the hot air flowing out of the side opening 150 of the lamp slot 15, and at the same time, the hair area is irradiated by the light generated by the lamp 30 from the side opening 150 of the lamp slot for light-assisted hair drying. Figure 4-6 as well as Figure 10-11 The middle arrow indicates the airflow path 200. Figure 7 The arrows in the diagram represent a schematic of light illuminating the hair area produced by the light source (lamp tube 30).

[0042] Reference Figure 1-7The photothermal comb 100 of the first embodiment of this application includes a comb head 1 and a handle 10. The comb head is generally rod-shaped, and its outer shell is formed by assembling an upper shell 101 and a lower shell 102, correspondingly divided into a comb head shell and a handle shell. The handle is cylindrical (but not limited to cylindrical), and the comb head is cuboid (but not limited to cuboid). Correspondingly, the upper shell 101 and lower shell 102 are semi-cylinders (but not limited to semi-cylinders) separated along their length for the handle portion, and the corresponding comb head portion is cuboid (but not limited to cuboid). The comb head 1 is equipped with three rows (but not limited to three rows) of comb teeth 13 for dividing hair into small sections. The hair hangs on the comb teeth or in the gaps between the comb teeth to form hair zones, which are ventilated by the gaps between the hairs.

[0043] The upper shell 101 has an annular shell in the comb section. The lower shell 102 has two slots (lamp tube slots 15) formed on both sides of the comb section (in the length direction). When the upper shell 101 is closed onto the lower shell 102, the top of the slots is sealed. Each of the two lamp tube slots 15 is equipped with a lamp tube 30. The side of the lamp tube slot 15 has an opening 150 along the length direction of the lamp tube, which serves as the light outlet for the lamp tube 30 and the air outlet for the lamp tube slot 15. The lower shell 102 has two through slots in the middle shell of the comb section to form ventilation channels 11, which are connected to the side openings 150 of the lamp tube slots through the spacing of the comb teeth and the air passages in the hair area on the comb teeth. When the upper shell 101 and the lower shell 102 are fastened together, a cuboid (not limited to a cuboid) comb shell is formed in the comb section. The two lamp tube slots 15 are arranged parallel to each other in the length direction inside the comb shell. The lower shell 102 has three rows of comb teeth 13 on the bottom surface of the comb section, with the outer two rows of comb teeth inclined outwards. Two through slots are formed between adjacent rows of comb teeth 13 to create ventilation channels 11. The ventilation channels 11 are inclined slots and are inclined toward the side opening 150 of the lamp tube slot 15, so that the airflow in the lamp tube slot 15 can flow smoothly through the gaps between the comb teeth and the hair area on the comb teeth to the ventilation channels 11, and then be blown out through the ventilation channels 11. In this embodiment, the airflow blown out of the ventilation channels 11 is upward (towards the side opposite to the comb teeth) and blown out of the comb. Referring to the reference Figure 6 The arrows indicate the light-emitting area. Because low-power tungsten carbide filament lamps and / or carbon filament lamps 30 are used, the lamps 30 are in very close contact with the hair on the comb teeth during use. The heat energy from the lamps heats the airflow into the hair area, and the near-infrared light contained in the light source irradiates the hair at close range, achieving efficient hair drying without causing hair damage as is common with high-power photothermal hair dryers.

[0044] After the upper shell 101 and lower shell 102 are assembled, a cylindrical handle housing is formed correspondingly in the handle portion. A vibration damping ring 41 is fitted around the outside of the fan 40 and is installed inside the handle housing. The fan 40 is coaxially installed inside the handle housing. The fan vent 42 is in airflow communication with the ventilation hole 12 of the photothermal comb 100. (Refer to reference...) Figure 5The fan vent 42 is located at the ventilation hole 12 of the solar-heated comb 100. When ambient cold air is drawn into the housing through the ventilation hole 12, it is drawn into the fan duct through the fan vent 42 and discharged through the other fan vent 43. The fan vent 43 is located at the air guide channel 16 formed inside the housing at the connection between the comb head 1 and the handle 10, and the airflow is connected. The air guide channel 16 formed inside the housing at the connection between the comb head 1 and the handle 10 is connected to the lamp tube slot 15. The size of the fan 40 is adapted to the size of the cavity inside the housing of the solar-heated comb 100, specifically to the cavity inside the handle housing, and is coaxially installed inside the handle 10 along the axis (or length) of the solar-heated comb 100.

[0045] The main control board 20 and battery 50 are installed at the rear of the handle housing. A partition 17 is provided on one side of the ventilation hole 12 (opposite to the fan 40). Another partition 17 is provided inside the handle housing near the tail end. The two partitions 17 install the main control board 20 and battery 50 inside the handle housing and separate them from the fan 40 and comb 1.

[0046] Combined with reference Figure 4-6 As shown by the arrows in the diagram, the airflow path 200 of the photothermal comb 100 in this embodiment is as follows: Under the suction / exhaust action of the fan 40, ambient air (cold air) is drawn in through the ventilation hole 12, into the fan 40 through the fan vent 42, and then flows into the lamp tube slot 15 through the air guide channel 16 from the air inlet 151 of the lamp tube slot 15 via the other ventilation hole 43 of the fan. The heat generated by the lamp tube 30 heats the air to form hot air, which flows out from the opening 150 of the lamp tube slot 15 and acts on the hair area on the comb teeth. After passing through the gaps of the comb teeth 13 and the hair area on the comb teeth, it flows out through the inclined ventilation channel 11, drying the hair with hot air as it passes through the hair area. In this embodiment, the airflow path 200 for drying the hair enters at the handle and flows into the comb head 1 along the length of the handle.

[0047] Combined with reference Figure 7 The arrows indicate the direction of light illumination. The middle area corresponding to the two arrow lines originating from the lamp tube 30 in the figure represents the range of light illumination. The light emitted by the lamp tube 30 illuminates the hair area on the comb teeth 13 from the side opening 150 of the lamp tube slot 15, realizing near-infrared light-assisted hair drying.

[0048] The hair drying principle of the photothermal comb 100 in this embodiment is as follows:

[0049] 1) Near-infrared light effect: Near-infrared light (900-2500nm) can be absorbed by water molecules and generate high-frequency vibrations to produce internal heat and evaporate water; using tungsten filament lamps or carbon fiber lamps (such as halogen lamps) 30 and using the near-infrared light waves emitted by them to irradiate wet hair, the light waves generate internal heat with the water molecules on the hair surface, promoting the evaporation of moisture on the hair surface, thus achieving the effect of assisting in drying hair.

[0050] 2) Thermal effect: The fan 40 draws in cold air, which flows through the fan vent to the space outside the tungsten filament lamp or carbon fiber lamp (e.g., halogen lamp) 30, i.e., the lamp slot 15. The thermal effect of the light field emitted by the tungsten filament lamp or carbon fiber lamp (e.g., halogen lamp) 30 heats the flowing cold air into hot air, which then flows to the hair area for hot air drying or blowing away moisture. At the same time, the comb teeth divide the hair into several small sections to increase the contact area between the hot air and the hair and the flow speed of the hot air. After the hot air flows through the hair area, it flows out through the ventilation channel 11.

[0051] Reference Figure 8-12 The photothermal comb 100 of the second embodiment of this application includes a comb head 1 and a handle 10. The comb head is generally rod-shaped, and its outer shell is formed by assembling an upper shell 101 and a lower shell 102, correspondingly divided into a comb head shell and a handle shell. The handle is cylindrical (but not limited to cylindrical), and the comb head is cuboid (but not limited to cuboid). Correspondingly, the upper shell 101 and lower shell 102 are semi-cylinders separated along their length for the handle portion, and are cuboid for the comb head portion. The comb head 1 is equipped with three rows (not limited to three rows) of comb teeth 13, with intervals between the comb teeth. The comb teeth 13 are used to divide the hair into small sections, and the hair hangs on the comb teeth or within the intervals between the comb teeth to form a hair area. The gaps between the hair sections allow for ventilation. The comb head 1 is provided with a ventilation channel 11, which corresponds to the intervals between each row of comb teeth and is connected to the lamp tube slot 15 through an opening 150, the intervals between the comb teeth, and the air passage of the hair area.

[0052] The upper shell 101 forms a cavity inside the comb section housing. A fan bracket 19 is installed at the bottom of the cavity, and the fan 40 is mounted on the fan bracket 19. An air guide shroud 103 is installed at the top of the cavity. The air guide shroud 103 covers the top of the upper shell 101, sealing the fan 40 inside the cavity of the upper shell 101. The air guide shroud 103 is adapted to the comb housing, that is, it is adapted to the upper shell 101 in the comb section housing. In the orientation shown in the figure, when the upper shell 101 is placed horizontally, the fan 40 is installed vertically, that is, the fan 40 is installed perpendicular to the axis (length) of the wind-light-heat comb 100. An air guide channel is formed inside the air guide shroud 103, allowing airflow to circulate between the ventilation port of the fan 40 and the lamp tube slot 150.

[0053] The lower shell 102 has two slots on both sides of the comb section (in the length direction) to serve as lamp tube slots 15, and each lamp tube 30 is installed in each lamp tube slot 15. After the air guide cover 103, the upper shell 101, and the lower shell 102 are assembled, the lamp tube slots 15 (i.e., the space outside the lamp tubes 30) are connected to the airflow in the cavity inside the upper shell 101 and inside the air guide cover 103. An opening 150 is formed on the side of the lamp tube slot 15 along the length direction of the lamp tube, which serves as the light outlet of the lamp tube 30 and the ventilation opening of the lamp tube slot 15. The lower shell 102 has two through slots in the middle shell of the comb section along the length direction to form ventilation channels 11, which are connected to the side openings 150 of the lamp tube slots through the spacing of the comb teeth and the air passage of the hair area on the comb teeth, and are also connected to the airflow of the fan 40. When the upper shell 101 and the lower shell 102 are assembled, a cuboid (not limited to cuboid) comb housing is formed in the comb section. Two lamp tube slots 15 are arranged parallel to each other along the length direction inside the comb housing. The lower shell 102 has three rows of comb teeth 13 on the bottom surface of the comb section, with the outer two rows of comb teeth inclined outward. Two through slots are opened between adjacent rows of comb teeth 13 to form ventilation channels 11. Each row of comb teeth includes multiple single teeth. The spacing between the comb teeth and the hair area on the comb teeth are in airflow communication with the ventilation channels 11 and with the openings 150 on the side walls of the lamp tube slots. The ventilation channel 11 is an inclined groove, sloping towards the side opening 150 of the lamp tube slot 15. This allows the airflow within the lamp tube slot 15 to flow smoothly into the ventilation channel 11 through the gaps between the comb teeth and the hair area (ventilation between the hairs), and then through the ventilation channel 11 and the fan's vent 43 into the fan 40. The airflow then exits through another vent 42 of the fan 40 and is guided by the guide channel within the air guide shroud 103 to the surface of the lamp tube 30 within the lamp tube slot 15. The hot airflow then re-enters the ventilation channel 11 through the gaps between the comb teeth and the hair area via the outlet 150, thus circulating and drying the hair area on the comb teeth. In this embodiment, when the upper shell 101 and lower shell 102 are assembled, the gaps formed in the comb head serve as auxiliary ventilation ports 18. External cold air is drawn into the fan 40's air duct through the auxiliary ventilation ports 18. When the fan 40 is operating, it simultaneously draws in external cold air from the auxiliary ventilation ports 18 and the gaps / hair area between the comb teeth. In this embodiment, the airflow for drying hair circulates only within the comb head, and there is no airflow within the handle. The air passage between the inside of the comb head housing and the inside of the handle housing can be blocked by the side wall of the housing. For example, the upper shell 102 is provided with a partition 17 in the tail of the comb head part to further block the airflow in the comb head 1 and the handle 10, as well as to protect the main control board 20 and the battery 50.

[0054] After the upper shell 101 and the lower shell 102 are assembled, a cylindrical handle housing is formed on the handle portion. The main control board 20 and the battery 50 are installed in the handle housing. The main control board and the battery can be installed inside the handle by setting a partition 17 inside the handle housing. A through hole 14 is provided on the handle housing, and the charging interface 21 is electrically connected to an external power source through the through hole 14.

[0055] Combined with reference Figure 10-11 The airflow path 200 for drying hair, as shown by the arrow in the diagram, is as follows: Under the action of the fan 40, external cold air is drawn in from the gaps between the comb teeth and the hair area on the comb teeth, enters the fan 40 through the ventilation channel 11, and flows to the two lamps 30 through the fan vent 42. The heat energy effect of the light field of the lamps 30 (tungsten filament or carbon filament light source such as halogen lamp light source) heats the cold air flowing through the surface of the lamps 30 (i.e., inside the lamp slot 150) into hot air. The hot air flows through the hair area, and the airflow completes the first cycle and enters the next cycle. After the hot air flows through the hair area, it flows out through the ventilation channel 11 and is drawn back into the fan 40. It flows through the fan vent 42 to the two lamps 30 for a second heating and becomes hot air again. The hot air flows through the hair area again and flows out through the ventilation channel 11 to enter the next internal cycle. This cycle is repeated, which makes the heating time of the flowing air short, the heat stability high, and removes more moisture.

[0056] Specifically, under the fan 40, external cold air is drawn in from the gaps inside the hair area on the comb teeth and the intervals inside the comb teeth. The cold air is drawn into the fan 40 through the ventilation channel 11 and the fan vent 43, and then guided through the fan vent 42 into the lamp tube slot 15 from the guide shroud 103. The cold air flowing over the surface of the lamp tube 30 is heated into hot air by the thermal energy effect of the light field of the lamp tube 30 (tungsten filament or carbon filament light source such as halogen lamp light source). The hot air then flows into the hair area from the side opening 150 of the lamp tube slot 15. The comb teeth 13 divide the hair into several small parts to increase the contact area between the hot air and the hair and the flow speed of the hot air. After the hot air flows through the hair area and exits through the ventilation channel 11, it is drawn back into the fan 40 through the fan vent 43 (at this time, the airflow in the first cycle is slightly warmer than the initial ambient airflow). It then flows through the fan vent 42 to the tungsten or carbon filament light source tube 30 for a second heating, forming hot air. The hot air then flows through the hair area again (at this time, due to the effect of near-red light, the surface moisture of the hair is reduced compared to the first cycle, and the external heat energy required by the hair is correspondingly reduced). After that, it flows out through the ventilation channel 11 and enters the next internal cycle (this cycle repeats, resulting in a short heating time for the flowing air, high thermal stability, and more moisture carried away).

[0057] The photothermal comb 100 of this embodiment is provided with an auxiliary airflow path for drying hair, as shown in the reference... Figure 10 Under the action of the fan 40, external cold air is drawn in from the auxiliary ventilation port 18 of the comb housing, and then drawn into the fan 40 through the ventilation channel 11 to participate in the above-mentioned airflow circulation to dry the hair.

[0058] The principle behind the photothermal hair dryer comb in this embodiment is as follows:

[0059] 1) Near-infrared light effect: Near-infrared light (900-2500nm) can be absorbed by water molecules and generate high-frequency vibration to produce internal heat and evaporate water; the lamp tube 30 uses tungsten or carbon filament light source and uses its near-infrared light wave to irradiate the wet hair, so that the light wave generates internal heat with the water molecules on the hair surface to promote the evaporation of water on the hair surface. The light generated by the light source irradiates the hair hanging on the comb teeth through the side opening 15 of the lamp tube groove 15 to achieve the effect of assisting in drying hair.

[0060] 2) Thermal Energy Effect: Cold air is drawn in by the fan 40 and flows through the fan vent 4 to the lamp tube (tungsten filament or carbon filament light source) 30. The thermal energy effect of the light field emitted by the lamp tube 30 heats the flowing cold air into hot air, which then flows into the hair area. At the same time, the comb teeth divide the hair into several small parts, which increases the contact area between the hot air and the hair and the flow speed of the hot air. After the hot air flows through the hair area, it flows out through the ventilation channel 11 (as a circulating air outlet) and is drawn back into the fan through the fan vent. It then flows through the fan vent to the tungsten filament or carbon filament light source for a second heating, forming hot air that flows through the hair area again. This cycle is repeated, which makes the heating time of the flowing air short, the heat stability high, and removes more moisture.

[0061] 3) Circulating air intake: Because traditional hair dryers need to be suspended at a certain distance from the head when in use, the heat dissipation of the air during the drying process causes some hot air to be lost into the ambient space and not effectively applied to the hair. In addition, traditional hair dryers need to draw in cold air from the environment throughout the drying process, heat it into hot air with the heating wire, and then apply it to the hair through spatial radiation. The loss of heat and the continuous input of cold air greatly increase the power consumption of the product and reduce the drying efficiency.

[0062] In this embodiment, a circulating heating air is used, which increases the timeliness of hair drying. The beneficial effect of circulating heating is that in the later stage of the hair drying process, as the moisture in the hair decreases and the hair becomes drier, the heat consumed when the hot air acts on the hair decreases. Therefore, the power consumption required in the later stage of the hair drying process is smaller, the heat retention is high, and the heating time is short, which effectively improves the utilization rate of heat energy and reduces the waste of heat energy.

[0063] In the above embodiments, the comb head 1 is not limited to a cuboid shape. For example, it can be a cylinder perpendicular to the handle axis. Correspondingly, the lamp tube 30 can be installed on the comb head 1 along the diameter direction or in a direction parallel to the diameter.

[0064] It is understood that the lamp tube 30 can be installed on both sides of the comb housing, in the diameter direction, in the axial direction, or in other suitable positions.

[0065] The photothermal comb 100 of this application has the following advantages:

[0066] 1) Low power consumption and high efficiency: Due to the dual energy source (light energy + heat energy) of the tungsten filament or carbon filament light source, the heat source (using tungsten filament or carbon filament light source tube 30) can get infinitely close to the hair. Its temperature is lower than that of traditional hair dryers, eliminating the heat loss and power loss caused by the distance between the traditional hair dryer and the hair, and achieving the dual benefits of low power consumption and high efficiency in drying hair.

[0067] 2) Portability: With the dual benefits of reduced power consumption and improved efficiency, the product can be designed with a wireless battery, greatly increasing the convenience and storage of the product during use.

[0068] 3) Hair care: Due to the near-infrared light energy generated by the tungsten or carbon filament light source, the external heat energy required for hair moisture evaporation is greatly reduced; the loss of nutrients in the hair cuticle and medulla due to high temperature is avoided, effectively protecting the hair structure.

[0069] Although embodiments of this application 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 this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A photothermal comb, comprising a housing, a main control board mounted inside or on the housing, and a fan electrically connected to the main control board; the photothermal comb includes comb heads and a handle, and the housing is correspondingly divided into a comb head housing and a handle housing; characterized in that: The comb housing contains one or more lamp tubes electrically connected to the main control board. The lamp tubes are tungsten filament lamp tubes and / or carbon filament lamp tubes, and the light emitted by the lamp tubes includes near-infrared light. The comb housing is equipped with a set of comb teeth, which are used to divide the hair into small sections and hang the hair to form hair zones. The comb housing is provided with one or more ventilation channels; the airflow between the fan, the outside of the lamp tube, and the ventilation channels is connected; and during use, the ventilation channels are connected to the airflow in the hair area; The comb housing is provided with one or more lamp slots, and one lamp is installed in each lamp slot; Each lamp slot has a side opening, which serves as a ventilation opening and a light outlet for the lamp. In use, under the action of the fan, cold air flows towards the lamp tube. The heat energy of the lamp tube's luminous field heats the cold air flowing through the lamp tube, forming hot air. The hot air is blown from the side opening of the lamp tube slot towards the hair area and passes through the hair area to perform hot air drying or blow away the moisture on the hair surface, and then flows into the ventilation channel. The light emitted by the lamp tube illuminates the hair area through the side opening, and the near-infrared light emitted by the lamp tube illuminates the hair area at close range for near-infrared assisted hair drying.

2. The photothermal comb as described in claim 1, characterized in that: A battery electrically connected to the main control board is also installed in the internal cavity of the outer casing. The light produced by the lamp tube includes near-infrared light of 900-2500nm, which is used to irradiate hair at close range; The photothermal comb is shaped like a straight rod, with the comb head located at the front end of the straight rod and the handle located at the rear end of the straight rod.

3. The photothermal comb as described in claim 2, characterized in that: The main control board and battery are installed inside the handle; The fan is installed inside the handle or comb head; The fan includes a fan housing and rotating blades inside the fan housing; the fan housing forms a ventilation opening or forms ventilation openings at both ends of the fan, the ventilation openings serve as the air inlet and outlet of the fan and are connected to the airflow inside the fan housing to form the air duct of the fan; the air duct of the fan is connected to the external surface of the lamp tube and the airflow of the ventilation channel.

4. The photothermal comb as described in claim 3, characterized in that: The side opening of the lamp tube slot is provided along the length of the lamp tube; The side opening of the lamp tube slot is adapted to the length of the ventilation channel; The lamp tube slot or side opening is arranged parallel to the ventilation channel; The comb housing is provided with two lamp tube slots; The comb housing forms one or more ventilation channels between the two lamp slots; The lamp slots or the lamps are parallel to each other.

5. The photothermal comb as described in claim 1, characterized in that: The ventilation channel is an inclined groove, tilted towards the direction of the lamp tube, so that the air heated by the lamp tube can smoothly flow into the ventilation channel after passing through the hair area.

6. The photothermal comb as described in any one of claims 1-5, characterized in that: The fan is installed inside the handle; An air inlet is provided on the handle housing, and one of the ventilation openings of the fan is located at the air inlet of the handle housing; The fan is coaxially mounted inside the handle housing; When in use, under the action of the fan, ambient air is drawn into the fan through the air inlet on the handle housing and the fan vent, and flows to the lamp tube through another vent of the fan to be heated into hot air; the hot air is blown towards and through the hair area into the ventilation channel, and flows out of the ventilation channel to the external environment.

7. The photothermal comb as described in any one of claims 1-5, characterized in that: The fan is installed inside the comb housing, the air inlet of the fan is located at the ventilation channel and the airflow is connected to the ventilation channel, and the air outlet of the fan is connected to the external airflow of the lamp tube. In use, ambient air is drawn into the fan from the hair area through the ventilation channel and the fan inlet, and discharged from the fan outlet. It flows towards the lamp tube and is heated into hot air. The hot air is blown towards and passes through the hair area and flows into the ventilation channel. It is then drawn into the fan again from the ventilation channel and the fan inlet to complete one cycle. This cycle continues, with the air circulating to the lamp tube and heating the hair area.

8. The photothermal comb as described in claim 7, characterized in that: The comb housing is equipped with an air guide cover, which covers the fan and the lamp tube, and guides the air flowing out of the fan outlet to the lamp tube.

9. The photothermal comb as described in claim 7, characterized in that: The comb housing is provided with an auxiliary ventilation port, which connects the external environment with the air inlet of the fan. In use, under the action of the fan, ambient cold air is drawn into the fan from the auxiliary ventilation port and the air inlet of the fan. The fan is installed perpendicular to the axis of the solar thermal air comb.

Images