Air duct structure and hair styling device thereof

Abstract

The utility model discloses an air duct structure which at least comprises a first shell, a fan cover is arranged on the inner side of the first shell, the fan cover and the first shell form an airflow cavity for guiding airflow, one end of the fan cover is provided with a main air duct, the main air duct is used for arranging a heating piece for generating hot airflow and a motor, and the fan cover is provided with a temperature measuring assembly. The temperature measuring assembly is used for detecting the temperature of airflow in the fan cover, at least one air outlet is formed in the first shell and used for outputting the guided airflow in the fan cover, the hair styling device comprises a main arm part and an auxiliary arm part hinged to one end of the first wall part, at least the main arm part comprises the air channel structure, and the auxiliary arm part is hinged to the other end of the main arm part. According to the air duct structure, heat loss is reduced, the heating and air supply efficiency of a product is improved, hair can be prevented from scattering towards the side edge, the combed and dried hair is more fluffy and more natural, the combing and drying effect on the hair is improved, and the use body feeling of hair styling of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hairdressing appliance, especially to an air duct structure and hair styling device. BACKGROUND

[0002] Traditional hair straightener, also known as electric clipper, is heated by electric current to heat the heating body MCH or PTC or heating wire of the hair straightener, and the heat is conducted to the aluminum plate or ceramic plate, and the user holds the aluminum plate or ceramic plate to style the hair; however, this styling method is likely to cause damage to the hair because it styles the hair by high temperature.

[0003] With the development of science and technology, the emergence of air heating type styler has solved the above problems to some extent, such as the hair styling appliance disclosed in publication No. CN213096653U, which comprises a first arm part and a second arm part hingedly connected to each other, and the first arm part and the second arm part at least contain an air chamber, and an air flow is sent to the air chamber by a motor, a heater is arranged in the air chamber to heat the incoming air flow, and the heated air is output from the air outlet; however, in this structure, the motor is arranged in the first arm part and / or the second arm part, and the heater is arranged in the first air chamber and the second air chamber respectively, and the distance between the motor and the heater is large, so that the heating of the air flow sent by the motor is relatively lagging, and the heated hot air is directly output from the "air outlet", although a humidity and / or temperature detection element is arranged, the temperature of the air flow heated by the heater cannot be reasonably adjusted in the first time, which reduces the comfort of the product in use and affects the use feeling of the user in hair styling. SUMMARY

[0004] The utility model aims at overcoming the defects in the prior art and providing an air duct structure and hair styling device, which simplifies the product structure, saves the assembly time, greatly saves the heating time of the air flow, shortens the conveying distance and heating distance of the hot air flow into the air flow chamber, greatly utilizes the heat generated by the heating element, reduces the heat loss, improves the heating and air supply efficiency of the product, more effectively ensures the consistency of the temperature of the hot air flow output from the air outlet, makes the hot air flow in the air duct structure more uniformly output from each position of the air outlet, prevents the hair from flying to the side, and effectively improves the hair styling effect; the hair styling device can simulate the smoothing of the human hand, makes the combed and dried hair more fluffy and natural, improves the combed and dried effect of the hair, ensures the comfort of the hot air flow output, and improves the use feeling of the user in hair styling.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of air duct structure, at least including first shell, the inside of the first shell is equipped with wind cover, the wind cover and first shell form a airflow guide airflow cavity, one end of the wind cover is equipped with main air duct, the main air duct is used to set up heat generating component generating hot airflow and motor and transports airflow to wind cover inside, the temperature measuring component is used to detect the temperature of airflow in wind cover, at least one air outlet is provided on the first shell, and the air outlet is used to output the airflow guided in wind cover.

[0007] Wherein, the inside of the other end of the wind cover is equipped with at least one air deflector, the air deflector forms shunt air duct in the inside of wind cover at the airflow output end of main air duct, and each shunt air duct is used to send hot airflow entering airflow cavity in partition.

[0008] Wherein, the inside of the air outlet of the first shell is equipped with at least one septum, the septum is used to cooperate air deflector and distribute hot airflow to each place of air outlet, the septum separates air outlet into two or more air outlet holes, at least one septum is provided with a side tilt towards main air duct, and the end face of the end of air outlet close to the septum of tilt setting is provided with a same direction tilt setting as the septum of tilt setting.

[0009] Wherein, the main air duct is composed of heating section and air inlet section connected with the heating section, the heating section is used to set up heat generating component, and the air inlet section is used to connect motor, the heating section extends to the inside of wind cover, and the main air duct and the wind cover are integrally formed.

[0010] Wherein, the temperature measuring component includes at least one temperature detecting element and temperature measuring circuit board electrically connected with the temperature detecting element, each temperature detecting element is arranged outside through the inside of wind cover, and the temperature measuring circuit board is installed on the outside of wind cover, wherein each temperature detecting element is arranged in corresponding shunt air duct, and each temperature detecting element is used to detect the temperature of hot airflow in shunt air duct.

[0011] Also disclosed is a kind of hair styling device, including main arm part and sub-arm part articulated to one end of first wall part, at least the main arm part includes the air duct structure described above, the heating section of the main air duct of the air duct structure is equipped with heat generating component, the air inlet section of the main air duct of the air duct structure is equipped with motor at one end, and the heat generating component, motor and temperature measuring component of the air duct structure are electrically connected with control part respectively.

[0012] Wherein, the main arm part is equipped with at least one hair clamping part at air outlet, and the sub-arm part is equipped with hair smoothing element at the mounting position corresponding to hair clamping part, the hair smoothing element is used to cooperate hair clamping part and press together and smooth hair, one end of the hair smoothing element is extended to one side with tilt, to form smoothing section.

[0013] The negative ion emitting element is arranged in the branch air duct.

[0014] When the main arm portion comprises the air duct structure, the first shell of the air duct structure and the second shell clamped on the first shell constitute the main arm portion, one end of the main arm portion is sleeved with the end cover, the control portion is mounted on the inner side of the first shell, one end of the auxiliary arm portion is hinged to the main arm portion, and the hinge between the auxiliary arm portion and the main arm portion is provided with the elastic element for keeping the main arm portion and the auxiliary arm portion in the open state.

[0015] 1. The air duct structure is formed by the air cover and the first shell to form an airflow cavity, and the heating section and the air inlet section of the main air duct of the air cover are designed as a whole, so that the heating element and the motor are combined, the distance between the heating element and the motor is compressed, the heating element can heat the high-pressure air flow entering the main air duct (the high-pressure air flow is generated by the motor) for the first time, and the hot air flow is output from the air outlet in the shortest time, thereby greatly saving the heating time of the air flow, shortening the conveying distance and heating distance of the hot air flow into the airflow cavity, greatly utilizing the heat generated by the heating element, reducing heat loss, improving the heating and air supply efficiency of the product, and more effectively ensuring the consistency of the temperature of the hot air flow output from the air outlet. At the same time, the air duct structure simplifies the product structure and saves the assembly time.

[0016] 2. The temperature detection elements of the air duct structure extend into the airflow cavity, and in particular, the temperature detection elements are arranged in the corresponding branch air ducts to detect the temperature in each branch air duct, so that the temperature detection elements can more directly detect the temperature of the air flow in each branch air duct, the temperature detection data is more direct and accurate, the temperature detection accuracy is improved, and the temperature detection circuit board is arranged outside the air cover, which is separated from the airflow cavity. The influence of the hot air flow on the temperature detection circuit board can be effectively avoided to ensure the normal operation of the temperature detection circuit board. In addition, since the hot air flow output by the main air duct still needs to flow through each branch air duct and then be output from the air outlet, the direct output of the air flow just after heating can be effectively avoided, and the temperature detection elements can monitor the temperature in the airflow cavity to more reasonably adjust the temperature of the hot air flow, so as to ensure the comfort of the hot air flow output and improve the use of the user's hair styling.

[0017] 3. The air duct structure of the air duct structure is designed to divide the air cover into air ducts, and the hot air flow output by the main air duct is more uniformly guided to each position of the air outlet, so that the hot air flow in the air duct structure is more uniformly output from each position of the air outlet.

[0018] 4. The baffle at the air outlet can effectively work with the guide plate to evenly distribute the hot airflow to each air outlet hole. The inclined baffle, especially the baffle inclined towards the main air duct, can make the airflow output from the air outlet near the inclined baffle flow towards the main air duct. It works in conjunction with the airflow output from other air outlet holes to gather the hair being combed, prevent the hair from flying to the side, and effectively improve the hair combing effect.

[0019] 5. The hair styling device incorporates the aforementioned air duct structure. In addition to the advantages of the air duct structure, the smoothing section of the hair smoothing component on the secondary arm is designed with an arc shape, allowing the flexible smoothing section to extend in the opposite direction of combing the hair. This works in conjunction with the hair clamping part to simulate the smoothing of hair by hand. Specifically, when the main arm and secondary arm are clamped, the smoothing section of the hair smoothing component forms an angle with the hair clamping part, allowing the smoothing section to fit closely to the hair clamping part. This ensures that the smoothing section and the hair clamping part press against the combed hair, while avoiding excessive fixation of the combed hair by the smoothing section and the hair clamping part. Combined with the flexibility of the smoothing section, when the main arm and secondary arm clamp the hair and comb it downwards, the smoothing section and the hair clamping part press against the combed hair, and the hot airflow from the air outlet dries and blows away the combed hair, achieving the effect of smoothing hair by hand.

[0020] 6. The negative ion emitter in the air hood of the hair styling device adds negative ions to the hot airflow entering the airflow chamber, so that the hot airflow with negative ions is output from the air outlet and acts on the hair being combed, thereby neutralizing the static electricity between the hair strands, making the combed and dried hair more fluffy and natural, and improving the combing and drying effect of this utility model on hair. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the air duct structure of this utility model.

[0022] Figure 2 This is a three-dimensional structural diagram of the wind shield of this utility model.

[0023] Figure 3 This is a three-dimensional structural diagram of the first shell of this utility model.

[0024] Figure 4 This is a three-dimensional structural diagram of the hair styling device of this utility model.

[0025] Figure 5 This is a partial exploded structural diagram of the main arm of this utility model.

[0026] Figure 6 This is a three-dimensional structural diagram of the auxiliary arm of this utility model.

[0027] Figure 7 Figure 1 is a schematic diagram of the connection relationship of the hair combing member, the hair straightening member and the auxiliary fixing member of the utility model.

[0028] Figure 8 Figure 2 is a schematic diagram of the structure of the utility model without the hair combing member, the hair straightening member and the auxiliary fixing member of the auxiliary arm part.

[0029] Figure 9 Figure 4 Figure 3 is a schematic diagram of the local section structure of the utility model without the hair combing member state of A in the middle.

[0030] BRIEF DESCRIPTION OF DRAWINGS

[0031] 1- first shell; 11- air outlet; 111- air outlet hole; 12- convex edge; 13- partition; 14- connecting groove; 141- fixed block; 2- wind cover; 21- main air duct; 211- heating section; 212- air inlet section; 22- groove; 23- air guide piece; 24- temperature measurement assembly; 241- temperature detection element; 242- temperature measurement circuit board; 25- negative ion emitting member; 2a- shunt air duct; 3- heating member; 4- motor; 5- control part; 6- hair clamping part; 7- hair straightening member; 71- smoothing section; 72- connecting part; 8- hair combing member; 81- mounting groove; 9- hair binding member; 1'- main arm part; 2'- auxiliary arm part; 21'- plug-in part; 22'- auxiliary fixing member; 23'- connecting seat; 231'- connecting groove; 3'- indicator light; 4'- power button; 5'- function switching button; 6'- power cord; 7'- end cover; 71'- second air inlet hole; 8'- second shell; 81'- first air inlet hole. DETAILED DESCRIPTION

[0032] The utility model is further described below in combination with the drawings of the specification: DETAILED EMBODIMENTS

[0033] For example, Figures 1-9 ​As shown, the utility model relates to a kind of air duct structure, at least including first shell 1, the inside of this first shell 1 is equipped with wind cover 2, the wind cover 2 and first shell 1 constitute a airflow cavity (not shown) of airflow guide, one end of the wind cover 2 is equipped with main air duct 21, the main air duct 21 is used to set up the heating element 3 of generating hot airflow and motor 4 and transports airflow to the inside of wind cover 2, the temperature measuring assembly 24 is used to detect the airflow temperature in wind cover 2, at least one air outlet 11 is equipped on the first shell 1, the air outlet 11 is used to output the airflow of being guided in wind cover 2;Wherein, one side of the wind cover 2 is equipped with groove 22 along edge ring, the position of the first shell 1 installation wind cover 2 is equipped with convex edge 12, the convex edge 12 is inserted in groove 22, the air tightness between wind cover 2 and first shell 1 is strengthened, ensure that hot airflow in airflow cavity is exported, greatly reduce that hot airflow leaks in airflow cavity, simultaneously, to ensure that the connection between wind cover 2 and first shell 1 is stable, wind cover 2 is also locked on first shell 1 with screw.

[0034] As Figure 2 Shown, the inside of another end of wind cover 2 is equipped with at least one air deflector 23, the air deflector 23 forms shunt air duct 2a in the inside of wind cover 2 at the airflow output end of main air duct 21, and each shunt air duct 2a is used for partitioned air supply to hot airflow entering the airflow cavity;The setting of the air deflector 23, in addition to the air duct zoning of wind cover 2, can also guide the hot airflow output by air inlet portion to each place of air outlet 11, so that the hot airflow in the air duct structure is more evenly exported from each position of air outlet 11.

[0035] As Figure 3 Shown, the inside of air outlet 11 of first shell 1 is equipped with at least one septum 13, the septum 13 is used to cooperate with air deflector 23 to distribute hot airflow to each place of air outlet 11, the septum 13 is separated into two or more air outlet holes 111, wherein, at least one septum 13 is inclined to one side of main air duct 21, and the end face 112 of the end of air outlet 11 close to the inclined septum 13 is inclined in the same direction as the inclined septum 13;It should be noted that the inclined septum 13, especially the septum 13 inclined to one side of main air duct 21, can make the airflow direction of the air outlet hole 111 near the inclined septum 13 flow to one side of main air duct 21, and cooperate with the airflow output by other air outlet holes 111 to gather the combed hair, prevent the hair from flying to the side, effectively improve the hair combing effect, and the inclination of the end face 112 is conducive to cooperating with the inclined septum 13 to guide the hot airflow to the inside of the utility model for output, thereby improving the gathering effect of the inclined septum 13 on the hair.

[0036] As Figures 1-2As shown in Figure 5, the main air duct 21 consists of a heating section 211 and an air intake section 212 connected to the heating section 211. The heating section 211 is used to house the heating element 3, and the air intake section 212 is used to connect the motor 4. The heating section 211 extends to the inner side of the fan shroud 2. The main air duct 21 and the fan shroud 2 are integrally formed. The design of the main air duct 21 integrates the heating element 3 and the motor 4, compressing the distance between the heating element 3 and the motor 4, so that the heating element 3 can handle the high-pressure airflow entering the main air duct 21 (this... The high-pressure airflow (generated by motor 4) is heated immediately and output from outlet 11 through airflow cavity in the shortest time. This greatly saves the heating time of the airflow, shortens the delivery distance and heating distance of the hot airflow into the airflow cavity, makes full use of the heat generated by heating element 3, reduces heat loss, improves the heating and air delivery efficiency of the product, and more effectively ensures the consistency of the temperature of the hot airflow output from outlet 11. At the same time, this air duct structure simplifies the product structure and saves assembly time.

[0037] like Figures 1-2 As shown in Figure 5, the temperature measuring assembly 24 includes at least one temperature sensing element 241 and a temperature measuring circuit board 242 electrically connected to the temperature sensing element 241. Each temperature sensing element 241 extends outward from the inside of the fan shroud 2, and the temperature measuring circuit board 242 is installed on the outside of the fan shroud 2. Each temperature sensing element 241 is respectively located in a corresponding air duct 2a, and each temperature sensing element 241 is used to detect the temperature of the hot airflow in the air duct 2a. By setting the temperature measuring assembly 24, the airflow temperature in each air duct 2a is detected, and the circuit on / off of the heating element 3 is controlled based on the detected temperature, making the temperature detection data more direct and accurate, and improving the temperature monitoring accuracy.

[0038] In addition, it should be noted that since the hot airflow output from the main air duct 21 also needs to flow through each branch air duct 2a before being output from the air outlet 11, it can effectively avoid the direct output of the airflow that has just finished heating. In addition, with the temperature detection element 241 monitoring the temperature inside the airflow cavity, the temperature of the hot airflow can be adjusted more reasonably to ensure the comfort of the hot airflow output and improve the user's hair styling experience. Specific Implementation Example 2:

[0040] like Figures 1-9The utility model discloses still disclose a hair styling device, including main arm department 1' and the sub-arm department 2' of hinging in one end of first wall department, at least main arm department 1' contains above-mentioned air duct structure, the heating section 211 of main air channel 21 of this air duct structure is equipped with heating element 3, the one end of admission section 212 of main air channel 21 of this air duct structure is installed with motor 4, and the connection of admission section 212 and motor 4 is wound with adhesive tape (not shown in drawing), to ensure the air tightness between admission section 212 and motor 4, heating element 3, motor 4 and temperature measuring assembly 24 of this air duct structure are electrically connected with control portion 5 respectively, in particular, the temperature measuring circuit board 242 of temperature measuring assembly 24 is electrically connected with control portion 5, and temperature measuring assembly 24 carries out monitoring to the temperature in airflow cavity through temperature detecting element 241, and the temperature data that is monitored is converted into real-time temperature signal, is transmitted to control portion 5 through temperature measuring circuit board 242, and control portion 5 according to the real-time temperature signal received, the working state of heating element 3 is started and stopped, wherein, control portion 5 is electrically connected with indicator light 3', power button 4' and function switch button 5' respectively, the on-off power situation of user equipment is indicated through indicator light 3', the hair styling device is opened and closed through power button 4', and the function mode (such as wind force gear, cold and hot air mode etc.) of hair styling device is switched through switch button.

[0041] As Figures 5-7 , 9 shows, and the at least one hair clamping part 6 is provided at the air outlet 11 of the main arm part 1', and the hair smoothing part 7 is provided at the installation position corresponding to the hair clamping part 6 on the sub-arm part 2', the hair smoothing part 7 is used to press and smooth the hair together with the hair clamping part 6, one end of the hair smoothing part 7 extends to one side in an inclined manner to form a smoothing section 71, it should be noted that the hair smoothing part 7 is preferably made of silica gel, the smoothing section 71 of the hair smoothing part 7 extends in a reverse arc shape towards the direction of combing the hair to form a smoothing section 71 which can simulate the human hand to smooth the hair and has flexibility, when the main arm part 1' and the sub-arm part 2' are clamped together, the smoothing section 71 of the hair smoothing part 7 forms an angle with the hair clamping part 6 on the hair clamping part 6, so that part of the smoothing section 71 is attached to the hair clamping part 6, which not only ensures that the smoothing section 71 and the hair clamping part 6 press the hair to be combed, but also avoids excessive fixation of the smoothing section 71 and the hair clamping part 6 to the hair to be combed, and the flexibility of the smoothing section 71 enables the main arm part 1' and the sub-arm part 2' of the utility model to press the hair to be combed through the smoothing section 71 and the hair clamping part 6 when the hair to be combed is combed downwards, and the hot air flow output by the air outlet 11 dries and blows away the hair to be combed, achieving the effect of smoothing the hair like a human hand.

[0042] As Figures 1-2As shown in FIGS. 5, a negative ion generating element 25 is further arranged on the wind cover 2 of the air duct structure, and the negative ion generating element 25 is arranged in the branch air duct 2a; the negative ion generating element 25 is electrically connected with the control unit 5 through a negative ion generator (not shown), when the control unit 5 wants to send a heating instruction to the heating element 3, the negative ion generator is started at the same time, the negative ion generator adds negative ions to the hot air flow entering each branch air duct 2a through the negative ion generating element 25, so that the hot air flow with negative ions output from the air outlet 11 acts on the combed hair, thereby neutralizing the static electricity between the hair, making the combed and dried hair more fluffy and natural, and improving the combing and drying effect of the utility model on the hair.

[0043] As Figures 1-9As shown, when the main arm part 1' contains the air duct structure, the first shell 1 of the air duct structure and a second shell 8' buckled on the first shell 1 constitute the main arm part 1', the second shell 8' is provided with at least one first air inlet hole 81', which provides a channel for the airflow into the main arm part 1' and is beneficial to the airflow supplement of the main air duct 21; one end of the main arm part 1' is sleeved with an end cover 7', the end cover 7' is provided with at least one second air inlet hole 71', which provides a channel for the airflow into the main arm part 1' and is beneficial to the airflow supplement of the main air duct 21; the control part 5 is installed inside the first shell 1, and one end of the auxiliary arm part 2' is hinged to the main arm part 1', wherein the hinge part of the auxiliary arm part 2' and the main arm part 1' is provided with an elastic element (not shown), which is used to keep the main arm part 1' and the auxiliary arm part 2' in an open state in normal state, and the elastic element is preferably a spring; it should be noted that the first shell 1 of the main arm part 1' is provided with a connecting groove 14, a fixed block 141 is protruded in the connecting groove 14, the fixed block 141 is connected with the elastic element, the auxiliary arm part 2' is provided with a connecting seat 23' corresponding to the position of the connecting groove 14, and the connecting seat 23' is hinged with the connecting groove 14 through a latch (not shown); specifically, the connecting seat 23' is further provided with a connecting groove 231', which is used to set the elastic element; further, the straightening element 7 is fixedly connected with the auxiliary arm part 2' through a combing element 8; specifically, one end of the auxiliary arm part 2' installed the combing element 8 is provided with a plug-in part 21', one end of the combing element 8 is plugged into the plug-in part 21', the other end of the combing element 8 is clamped with an auxiliary fixing element 22', and the auxiliary fixing element 22' is locked on the auxiliary arm part 2' through screw cooperation, the combing element 8 is fixed on the auxiliary arm part 2' through the clamping cooperation of the plug-in part 21' and the auxiliary fixing element 22', and the wear resistance of the contact surface between the auxiliary arm part 2' and the hair is improved through the combing element 8; one side of the combing element 8 is provided with a mounting groove 81, the straightening element 7 further comprises a connecting part 72 connected with the smoothing section 71, the connecting part 72 is inserted into the mounting groove 81, and the straightening element 7 is fixed through the mounting groove 81, which can effectively improve the stable connection between the straightening element 7 and the auxiliary arm part 2', thereby ensuring the combing effect of the hair of the utility model; wherein the smoothing section 71 and the connecting part 72 of the combing element 8 are integrally formed.

[0044] Or, when the main arm part 1' and the auxiliary arm part 2' are provided with the aforementioned air duct structure, the first shell 1 of the air duct structure is buckled with another second shell 8', which respectively constitutes the main arm part 1' and the auxiliary arm part 2', and at least one first air inlet hole 81' is arranged on the second shell 8', which provides a channel for the airflow to enter the main arm part 1' or the auxiliary arm part 2', and is beneficial to the airflow supplement of the main air duct 21 of the main arm part 1' or the auxiliary arm part 2'; one end of the main arm part 1' and the auxiliary arm part 2' are hingedly connected with each other through an end cover 7', and at least one second air inlet hole 71' is arranged on the end cover 7', which provides a channel for the airflow to enter the main arm part 1', and is beneficial to the airflow supplement of the main air duct 21; the air duct structure is respectively provided with an independent motor 4 and a heating element 3, and each motor 4 and heating element 3 are electrically connected with the same control part 5; the hair smoothing element 7 is arranged on one long edge side of the air outlet 11 of the auxiliary arm part 2', and a hair combing element 8 is arranged on the other long edge side of the air outlet 11, and the wear resistance of the contact surface between the auxiliary arm part 2' and the hair is improved through the hair combing element 8; the hair combing element 8 is locked on the auxiliary arm part 2' through screws; specifically, the hair smoothing element 7 further comprises a connecting part 72 connected with the hair smoothing section 71, and a mounting groove 81 is arranged on the auxiliary arm part 2', and the connecting part 72 is fixedly inserted into the mounting groove 81; wherein the hair smoothing section 71 and the connecting part 72 of the hair combing element 8 are integrally formed; it should be noted that this embodiment is not shown.

[0045] The utility model discloses a kind of hair styling devices, magnetic induction assembly (not shown) is further provided between main arm part 1' and auxiliary arm part 2', and the magnetic induction assembly is electrically connected with control part 5;Magnetic induction assembly includes the magnet (not shown) arranged on first shell 1 and the magnet (not shown) arranged on auxiliary arm part 2', and the magnet is electrically connected with control part 5, the magnet preferably adopts Hall element.

[0046] The utility model discloses a kind of hair styling devices, and heating element 3 is further electrically connected with thermal switch (not shown), and the thermal switch is used to when the temperature of heating element 3 reaches the temperature protection threshold of thermal switch temporarily power off heating element 3;Specifically, the thermal switch is arranged on one end of heating element 3, when temperature rises, the deformation of active layer of bimetallic strip in thermal switch is greater than the deformation of passive layer, the whole bimetallic strip will bend to passive layer side, and the circuit path of heating element 3 is disconnected, the temperature change in airflow cavity is monitored by thermal switch, and heating element 3 is real-time on-off, effectively avoid the damage of electrical element in the utility model due to overheat of heating element 3, both ensure the stability of hair styling device work and the safety of use, and improve the comfort of hot airflow output by hair styling device.

[0047] And / or, the heating element 3 is also electrically connected with a temperature control fuse (not shown), which is used to cut off the power supply of the heating element 3 when the working temperature of the heating element 3 exceeds the rated temperature of the temperature control fuse; Specifically, the temperature control fuse is arranged at the other end of the heating element 3, and when the working environment temperature exceeds the rated temperature of the temperature control fuse, the temperature control fuse generates high temperature to quickly interrupt the circuit, thereby effectively avoiding the damage of other electrical elements of the hair styling device and improving the safety of product use.

[0048] The embodiment is used to explain the technical features, and the technical features of the specific embodiment 1 are explained, which will not be repeated here.

[0049] In use, the power cord 6' is connected to the socket connected to the mains, the power button 4' is pressed to start the hair styling device, and the motor 4 is pre-rotated at low speed; when the user moves the main arm part 1' and the auxiliary arm part 2' close to each other to fit, the magnet of the magnetic induction assembly acts on the magnetic sensor, the magnetic sensor converts the change of the magnetic field into a pulse signal, and transmits the pulse signal to the control part 5; the control part 5 sends an acceleration command to the motor 4 according to the received pulse signal, and sends a heating command to the heating element 3; the heating element 3 heats the airflow sent into the main air duct 21, and under the action of the motor 4, the hot airflow is delivered to the airflow cavity; at this time, the motor 4 continuously delivers hot airflow to the airflow cavity through the main air duct 21, which promotes the hot airflow to be output through the air outlet 11, and in the process of outputting the hot airflow, the hot airflow is conducted and distributed through the air guide piece 23, and is uniformly output from each air outlet hole 111 separated by the partition piece 13; after the hot airflow is output, the user only needs to clamp and comb the part of the hair to be styled by opening and closing the main arm part 1' and the auxiliary arm part 2'; after use, the hair styling device is turned off by the power button 4', the power plug is pulled out, and the hair styling device is stored.

[0050] In addition, as shown in Figure 4 In order to facilitate the storage of the hair styling device, a bundle closing part 9 can be used to fix the closed state of the main arm part 1' and the auxiliary arm part 2' after they are closed, so as to reduce the occupied space of the hair styling device.

[0051] The above description is only a preferred embodiment of the present application, and does not limit the scope of the present application, so equivalent changes or decorations made by ordinary engineering technicians to the structure, features and principles described in the present application without departing from the design spirit of the present application shall fall within the protection scope of the patent application of the present application.

Claims

1. An air duct structure comprising at least a first housing, characterized by: The first shell is internally provided with a wind cover which forms a airflow guiding cavity with the first shell. One end of the wind cover is provided with a main air duct for arranging a heating element for generating hot airflow and a motor and for conveying the airflow into the wind cover. A temperature measuring assembly is arranged for detecting the temperature of the airflow in the wind cover. The first shell is provided with at least one air outlet for outputting the guided airflow in the wind cover.

2. The air duct structure according to claim 1, wherein: The other end of the wind cover is internally provided with at least one air guiding sheet which forms a shunt air duct inside the wind cover at the airflow output end of the main air duct. Each shunt air duct is arranged for partitioned air supply of the hot airflow entering the airflow guiding cavity.

3. The air duct structure according to claim 1, wherein: The air outlet of the first shell is internally provided with at least one partition sheet which is arranged for distributing the hot airflow to each part of the air outlet in cooperation with the air guiding sheet. The partition sheet separates the air outlet into two or more air outlet holes. At least one partition sheet is arranged to be obliquely arranged to one side of the main air duct. The end face of the air outlet near one end of the obliquely arranged partition sheet is obliquely arranged in the same direction as the obliquely arranged partition sheet.

4. The air duct structure according to claim 1, wherein: The main air duct is composed of a heating section for arranging the heating element and an air inlet section for connecting the motor. The heating section extends to the inside of the wind cover. The main air duct and the wind cover are integrally formed.

5. The air duct structure according to claim 2, wherein: The temperature measuring assembly comprises at least one temperature detecting element and a temperature measuring circuit board electrically connected with the temperature detecting element. Each temperature detecting element is externally arranged through the inside of the wind cover. The temperature measuring circuit board is arranged on the outside of the wind cover. Each temperature detecting element is arranged in the corresponding shunt air duct. Each temperature detecting element is arranged for detecting the temperature of the hot airflow in the shunt air duct.

6. A hair styling device comprising a main arm portion and a sub-arm portion hingedly connected to one end of a first wall portion, characterised in that: At least the main arm portion comprises the air duct structure according to any one of claims 1-5. The heating element is arranged in the heating section of the main air duct of the air duct structure. The motor is arranged at one end of the air inlet section of the main air duct of the air duct structure. The heating element, the motor and the temperature measuring assembly of the air duct structure are electrically connected with the control portion.

7. A hair styling device according to claim 6, wherein: The main arm portion is provided with at least one hair clamping portion at the air outlet. The secondary arm portion is provided with a hair smoothing element at the mounting position corresponding to the hair clamping portion. The hair smoothing element is arranged for pressing and smoothing the hair in cooperation with the hair clamping portion. One end of the hair smoothing element is obliquely extended to one side to form a hair smoothing section.

8. A hair styling device according to claim 6, wherein: The wind cover of the air duct structure is further provided with a negative ion generating element arranged in the shunt air duct.

9. A hair styling device according to claim 6, wherein: When the main arm portion comprises the air duct structure, the first shell of the air duct structure and a second shell clamped on the first shell form the main arm portion. One end of the main arm portion is sleeved with an end cover. The control portion is arranged inside the first shell. One end of the secondary arm portion is hingedly connected to the main arm portion. The hinge connection between the secondary arm portion and the main arm portion is provided with an elastic element for keeping the main arm portion and the secondary arm portion in an open state in normal state.

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