A dual duct hair dryer

Abstract

The present application relates to the field of hair dryer, especially to a double air channel hair dryer, the present application provides a double air channel hair dryer, the double air channel hair dryer includes the hollow shell unit, and the control unit and the main unit arranged in the shell unit;The main unit includes fuselage shell, heating assembly and fan assembly, at least two airflow channels are provided in the fuselage shell, and the two ends of the airflow channel are respectively provided with the second air inlet and the second air outlet communicated with the outside;The fan assembly is arranged close to the second air inlet;The control unit includes the control panel, the control panel is arranged between the first air inlet and the fan assembly, the control panel is electrically connected with the fan assembly, and the control panel is provided with the avoiding hole;The heating assembly includes the heating element, the heating element is electrically connected with the control unit, a plurality of containing spaces are arranged in the heating assembly, and the heating element is arranged in the containing space.The present application further reduces the volume of the double air channel hair dryer, and improves the heating efficiency of the double air channel hair dryer.

Description

[Technical Field]

[0001] This invention relates to the field of hair dryers, and particularly to a dual-channel hair dryer. [Background Technology]

[0002] Hair dryers are a common household appliance. Traditional hair dryers use a single motor, fan, and heating element to generate hot air for drying and styling hair. This simple structure limits the efficiency of hair dryers. The main way to improve the efficiency of traditional hair dryers is to increase the size and power of the motor and heating element. This method of using more energy to improve efficiency greatly increases the manufacturing cost of hair dryers and wastes energy. At the same time, adding high-power components will increase the size of the hair dryer, making it more inconvenient for users.

[0003] To address the aforementioned issues, a dual-channel hair dryer has been developed. This type of hair dryer consists of two independent air channels, typically located on either side of the hairdryer. Each channel has its own independent fan and heating system, providing independent airflow and temperature control. This design increases the hair dryer's power and drying effect. The dual-channel hair dryer generates dual airflow through two independent fans, resulting in stronger airflow. This allows for faster hair drying and reduces drying time.

[0004] Dual-channel hair dryers not only have powerful airflow but also provide higher heating temperatures. Two independent heating systems ensure more even and rapid heating, resulting in faster drying.

[0005] However, existing dual-channel hair dryers are more complex in structure and require more components compared to traditional single-channel hair dryers, resulting in a larger size. Furthermore, current dual-channel hair dryers have insufficient heating efficiency, leading to energy waste. [Summary of the Invention]

[0006] To address the issues of the large size and insufficient heating efficiency of dual-channel hair dryers.

[0007] The present invention provides a dual-channel hair dryer, which includes a hollow outer shell unit, and a control unit and a main unit disposed within the outer shell unit; the outer shell unit includes a first air inlet and a first air outlet communicating with the outside.

[0008] The main unit includes a housing, a heating element, and a fan assembly. The housing has at least two airflow channels, with a second air inlet and a second air outlet at each end of the airflow channels, which are connected to the outside. The fan assembly is located near the second air inlet.

[0009] The control unit includes a control board, which is located between the first air inlet and the fan assembly. The control board is electrically connected to the fan assembly. The control board is provided with clearance holes. There is a first gap between the edge of the control board and the inner sidewall of the outer casing unit. There is a second gap between the control board and the main unit. The first gap and the second gap are interconnected.

[0010] The first air inlet and the second air inlet are connected, and the first air outlet and the second air outlet are connected.

[0011] The heating element is installed inside the airflow channel, and is positioned close to the second air outlet.

[0012] The heating assembly includes a heating element, which is electrically connected to a control unit. The heating assembly has multiple receiving spaces, and the heating element is disposed within each receiving space.

[0013] Preferably, the dual-duct blower further includes a hollow air outlet unit, with a third air inlet and a third air outlet connected at both ends. The third air inlet is connected to the first air outlet. The air outlet unit also includes a first air guide, which is disposed between the third air inlet and the first air outlet.

[0014] Preferably, the housing unit further includes a rotating component and a handle. The handle is connected to the side of the housing unit, and the housing unit and the handle are rotatably connected by the rotating component. The handle can be folded after rotating at a certain angle relative to the housing unit.

[0015] Preferably, the housing unit further includes an air inlet rear housing, which is disposed on the side of the housing where the second air inlet is located, and the control board is located between the fan assembly and the air inlet rear housing.

[0016] Preferably, the heating element includes a mounting bracket and a sleeve, which form a plurality of receiving spaces. The end of the mounting bracket near the second air inlet is recessed in a direction away from the fan assembly to form a recess, and the fan assembly is partially received in the recess.

[0017] Preferably, the heating component further includes a second air guide, which is detachably connected to the mounting bracket and is positioned near the recess.

[0018] Preferably, the mounting bracket of the heating element is provided with a first slot at one end near the second air outlet, and the mounting bracket is snapped onto the sleeve through the first slot.

[0019] Preferably, the heating element further includes a connector, and a second slot is provided at one end of the mounting bracket of the heating element near the first air outlet and the second air outlet. The connector is connected to the sleeve and passes through the second slot.

[0020] Preferably, a temperature sensor and a fuse are provided at one end of the mounting bracket of the heating element near the second air outlet, and the temperature sensor and the fuse are electrically connected to the control unit and the heating element.

[0021] Compared with the prior art, the dual-duct hair dryer of the present invention has the following advantages:

[0022] 1. The main unit of the dual-channel blower of the present invention includes a housing, a heating element, and a fan assembly. The housing has at least two airflow channels, and the two ends of the airflow channels are respectively provided with a second air inlet and a second air outlet that connect to the outside. The fan assembly is located near the second air inlet. The heating element is located in the airflow channels and near the second air outlet. The heating element includes a heating element, which is electrically connected to the control unit. The heating element has multiple receiving spaces, and the heating element is located in the receiving spaces.

[0023] The present invention controls the fan assembly to rotate through the control unit, so that the external airflow enters the blower body through the first air inlet, the airflow enters the main unit through the second air inlet, and the airflow is heated by the heating element in the main unit before flowing out through the first air outlet.

[0024] This invention heats the circulating airflow by setting up a heating element. The heating element has multiple receiving spaces, each containing a heating component, which achieves a more uniform heating effect. Because the heating components are distributed in multiple receiving spaces, heat can be transferred more evenly to the air outlet of the dual-channel blower, avoiding the problem of heat concentration in a certain area.

[0025] By incorporating multiple heating chambers, the total surface area of ​​the heating element can be increased, thereby improving the heating efficiency of the dual-channel hair dryer. Each chamber can provide independent heating capacity, fully utilizing the heat output of the heating element and accelerating the heating speed of the dual-channel hair dryer.

[0026] The multiple compartments provide a larger surface area for heat dissipation, which improves heat dissipation. This effectively prevents overheating of the heating elements, extends their lifespan, and reduces heat dissipation issues in dual-channel blowers.

[0027] The control unit of the present invention includes a control board, which is disposed between the first air inlet and the fan assembly. The control board is electrically connected to the fan assembly, and the control board is provided with clearance holes.

[0028] When the fan assembly is operating, the outside airflow passes sequentially through the first air inlet, the clearance hole, and the fan assembly. The control board can dissipate heat by relying on the air intake of the fan assembly, while the clearance hole ensures that the air intake of the fan assembly is not affected.

[0029] 2. The dual-duct blower of the present invention further includes a hollow air outlet unit. The air outlet unit has a third air inlet and a third air outlet connected at both ends. The third air inlet is connected to the first air outlet. The air outlet unit also includes a first air guide, which is disposed between the third air inlet and the first air outlet. The airflow from the first air outlet must pass through the first air guide to reach the third air outlet. The first air guide further pressurizes the heated airflow and makes the airflow more uniform.

[0030] 3. The outer shell unit of the dual-channel hair dryer of the present invention further includes a rotating component and a handle. The handle is connected to the side of the outer shell unit. The hollow shell and the handle are rotatably connected by the rotating component. The handle can be folded after rotating at a certain angle relative to the outer shell unit. The handle can be selected to meet the user's needs in more scenarios. At the same time, the handle can be folded, making the dual-channel hair dryer of the present invention more convenient to carry and store.

[0031] 4. The outer casing unit of the dual-airflow hair dryer of the present invention further includes an air inlet rear shell, which is disposed on the side of the main body housing where the second air inlet is located. The air inlet rear shell can prevent debris from entering the main body and protect the user from injury caused by the fan assembly. The control board is located between the fan assembly and the air inlet rear shell. The placement of the control board between the air inlet rear shell and the main body housing can further utilize the space in the main body and reduce the overall size of the dual-airflow hair dryer.

[0032] There is a first gap between the edge of the control board and the inner wall of the housing unit, and a second gap between the control board and the main unit. The first and second gaps are interconnected. The first and second gaps provide more airflow channels for the fan assembly.

[0033] 5. The dual-channel blower heating unit of the present invention includes a mounting bracket and a sleeve, which form multiple receiving spaces. One end of the mounting bracket near the second air inlet is recessed away from the fan assembly to form a recessed portion, in which the fan assembly is partially accommodated. The recessed portion further reduces the length of the unit body. The heating assembly also includes a second air guide, which is detachably connected to the mounting bracket and positioned near the recessed portion. Airflow from the fan assembly into the heating assembly must pass through the second air guide, which directs the airflow discharged from the fan assembly into a space within the sleeve near the side wall, thereby pressurizing the airflow and increasing its velocity. Simultaneously, this allows the airflow to fully pass through the heating element positioned in this space, improving the heating efficiency of the dual-channel blower.

[0034] 6. The mounting plate of the heating unit of the present invention is provided with a first slot at one end near the second air outlet. The mounting bracket is snapped onto the sleeve through the first slot, and the mounting bracket is fixed on the sleeve through the first slot.

[0035] The heating element also includes a connector. A second slot is provided at one end of the mounting bracket of the heating element near the first and second air outlets. The connector is attached to the sleeve and passes through the second slot. The cooperation between the second slot and the connector prevents the mounting bracket from rotating and facilitates disassembly of the mounting bracket for easy replacement of the heating element.

[0036] A temperature sensor and a fuse are installed on the mounting plate of the heating element near the second air outlet. The temperature sensor and fuse are electrically connected to the control unit and the heating element. The temperature sensor and fuse can monitor the airflow of the dual-channel blower in real time, and cut off the heating element circuit when the heating element temperature is too high, thereby improving the safety of the dual-channel blower. [Attached Image Description]

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a cross-sectional view of a dual-duct blower provided in the first embodiment of the present invention.

[0039] Figure 2 This is a front view of a main unit provided in the first embodiment of the present invention.

[0040] Figure 3 This is a right view of a main unit provided in the first embodiment of the present invention.

[0041] Figure 4 This is a rear view of a dual-airflow hair dryer provided in the first embodiment of the present invention.

[0042] Figure 5 This is a front cross-sectional view of a heating component provided in the first embodiment of the present invention.

[0043] Figure 6 This is a right view of a heating component provided in the first embodiment of the present invention.

[0044] Figure 7 This is a left view of a heating component provided in the first embodiment of the present invention.

[0045] Figure 8 This is a front view of a dual-airflow hair dryer provided in the first embodiment of the present invention.

[0046] Figure 9 This is a partial cross-sectional view of the outer shell unit provided in the first embodiment of the present invention.

[0047] Figure 10 This is an isometric view of a dual-duct blower provided in the first embodiment of the present invention.

[0048] Explanation of reference numerals in the attached diagram:

[0049] 11. Air outlet unit; 12. Housing unit; 13. Main unit; 14. Control unit;

[0050] 111. Third air outlet; 112. Third air inlet; 113. First air guide; 114. Handle; 115. Rotating assembly; 121. First air outlet; 122. First air inlet; 123. Air inlet rear shell; 131. Heating element; 132. Heating element; 133. Second air outlet; 134. Second air inlet; 135. Fan assembly; 136. Second air guide; 141. Control panel; 142. Clearance hole; 143. Body shell; 144. Airflow channel;

[0051] 1311. Mounting bracket; 1312. Recess; 1313. First slot; 1314. Temperature sensor; 1315. Connector; 1316. Fuse; 1317. Second slot; 1318. Sleeve; 1141. Temperature key; 1142. Fan speed key; 1143. On / off key; 1411. First gap; 1422. Second gap.

Detailed Implementation Methods

[0052] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0053] Please see Figure 1 The first embodiment of the present invention provides a dual-channel hair dryer, which includes a hollow outer shell unit 12, and a control unit 14 and a main unit 13 disposed within the outer shell unit 12.

[0054] The outer casing unit 12 includes a first air inlet 122 and a first air outlet 121 that communicate with the outside.

[0055] The main unit 13 includes a housing 143, a heating element 131, and a fan assembly 135. The housing 143 has two airflow channels 144. The two ends of the airflow channels 144 are respectively provided with a second air inlet 134 and a second air outlet 133 that connect to the outside. The fan assembly 135 is located near the second air inlet 134.

[0056] The control unit 14 includes a control board 141, which is located between the first air inlet 122 and the fan assembly 135. The control board 141 is electrically connected to the fan assembly 135, and a clearance hole 142 is provided on the control board 141.

[0057] The first air inlet 122 is connected to the second air inlet 134, and the first air outlet 121 is connected to the second air outlet 133.

[0058] The heating element 131 is disposed in the airflow channel 144 and is located near the second air outlet 133.

[0059] The dual-channel blower of the present invention controls the fan assembly 135 to rotate through the control unit 14, so that the external airflow enters the outer shell unit 12 through the first air inlet 122, the airflow enters the main unit 13 through the second air inlet 134, the airflow passes through the fan assembly 135 and the heating assembly 131 in the main unit 13 in sequence, and the airflow heated by the heating assembly 131 flows out of the main unit 13 through the second air outlet 133, and finally is discharged to the outside through the first air outlet 121.

[0060] The heating assembly 131 of the present invention includes a heating element 132, which is electrically connected to a control unit 14. The heating element 132 can control the heat output of the heating element 132 through the control unit 14. The heating assembly 131 has multiple receiving spaces, and the heating element 132 is disposed within each receiving space. Preferably, in this embodiment, the heating element 132 is a heating wire.

[0061] Please refer to the following: Figure 1 and Figure 6 This invention heats the circulating airflow by setting a heating element 131. The heating element 131 is provided with multiple receiving spaces, and a heating element 132 is set in each receiving space, which can achieve a more uniform heating effect. Since the heating element 132 is distributed in multiple receiving spaces, the heat can be transferred more evenly to the air outlet of the dual-channel blower, avoiding the problem of heat concentration in a certain area.

[0062] By setting up multiple accommodating spaces, the total area of ​​the heating element 132 can be increased, thereby improving the heating efficiency of the dual-channel hair dryer. Each accommodating space can provide independent heating capacity, making full use of the heat output of the heating element 132 and accelerating the heating speed of the dual-channel hair dryer.

[0063] The multiple accommodating spaces provide a larger heat dissipation surface area, which is beneficial for improving heat dissipation. This effectively prevents the heating element 132 from overheating, extends the service life of the heating element 132, and reduces heat dissipation problems in the dual-channel blower.

[0064] Understandably, please refer to the following: Figure 2 and Figure 3Two cylindrical airflow channels 144 are provided through the fuselage housing 143. The two airflow channels 144 are arranged side by side. The outer shell of the fuselage housing 143 is set into an arc structure according to the shape of the airflow channels 144, which can reduce the volume of the fuselage housing 143 when two airflow channels 144 are provided.

[0065] Understandably, please refer to the following: Figure 1 and Figure 4 The control unit 14 of the present invention includes a control board 141, which is disposed between the first air inlet 122 and the fan assembly 135. The control board 141 is electrically connected to the fan assembly 135, and a clearance hole 142 is provided on the control board 141.

[0066] Furthermore, a clearance hole 142 is provided on the control board 141 corresponding to each of the two fan assemblies 135.

[0067] When the fan assembly 135 is working, the external airflow passes through the first air inlet 122, the clearance hole 142, and the fan assembly 135 in sequence. The control board 141 can dissipate heat by relying on the airflow generated when the fan assembly 135 is inlet, while ensuring that the airflow of the fan assembly 135 is not affected by the clearance hole 142.

[0068] Understandably, please refer to Figure 1 The control board 141 is connected to the outer casing unit 12 or the main unit 13. Preferably, in this embodiment, the control board 141 is detachably connected to the housing 143 of the main unit 13 by screws, making the control board 141 easier to assemble.

[0069] Understandably, please refer to Figure 1 A first gap 1441 exists between the edge of the control board 141 and the inner wall of the outer casing unit 12, and a second gap 1442 exists between the control board 141 and the main unit 13. The first gap 1441 and the second gap 1442 are interconnected. The first gap 1441 and the second gap 1442 provide more air intake channels for the fan assembly 135.

[0070] When the fan assembly 135 starts working, the outside airflow enters the housing unit 12 through the first air inlet 122, part of the airflow reaches the fan assembly through the first gap 1441, and at the same time, part of the airflow reaches the fan assembly through the second gap 1442.

[0071] Understandably, please refer to Figure 1The outer casing unit 12 of the dual-airflow hair dryer of the present invention further includes an air inlet rear casing 123. The air inlet rear casing 123 is disposed on the side of the body casing 143 where the second air inlet 134 is disposed. The air inlet rear casing 123 can prevent debris from entering the body and at the same time protect the user from injury caused by the fan assembly 135.

[0072] Furthermore, the control board 141 is disposed between the fan assembly 135 and the air inlet rear shell 123. The placement of the control board 141 between the air inlet rear shell 123 and the body shell 143 can further utilize the body space and reduce the overall volume of the dual-air duct blower.

[0073] Understandably, please refer to Figure 5 The heating element 131 includes a mounting bracket 1311 and a sleeve 1318. The heating element 132 is wound around the edge of the mounting bracket 1311. The mounting bracket 1311 is accommodated in the sleeve 1318. The mounting bracket 1311 and the sleeve 1318 form multiple accommodating spaces. The wound heating element 132 is located in the accommodating space near the inner wall of the sleeve 1318.

[0074] Furthermore, please refer to the following: Figure 1 and Figure 5 A portion of the central area at one end of the mounting bracket 1311 is recessed away from the fan assembly 135 to form a recess 1312. A portion of the heating element 131 is housed within the recess 1312, which makes full use of the space within the housing 143, resulting in a smaller body size for the dual-channel blower.

[0075] Furthermore, please refer to the following: Figure 5 and Figure 6 The heating element 131 also includes a second air guide 136, which is a centrally protruding disc shape. The second air guide 136 has multiple grooves, and the mounting bracket 1311 has multiple blades. Adjacent blades and the sleeve are spaced apart to create accommodating spaces. The second air guide 136 can be detachably connected to the blades of the mounting bracket 131 via the grooves. There is a gap between the second air guide 136 and the inner wall of the sleeve 1318, and the second air guide 136 is positioned near the bottom surface of the recess 1312.

[0076] The airflow entering the heating element 131 from the fan assembly 135 must pass through the second air guide 136, which directs the airflow discharged from the fan assembly 135 towards the space near the inner wall of the sleeve 1318. This pressurizes the airflow passing through the heating element 131, increasing its velocity. Simultaneously, it allows the airflow to fully pass over the heating element 132 located adjacent to the inner wall of the sleeve 1318, improving the heating efficiency of the dual-channel blower.

[0077] Understandably, please refer to Figure 7The mounting bracket 1311 of the heating element 131 is provided with a first slot 1313 at one end near the second air outlet 133. The mounting bracket 1311 is engaged with the sleeve 1318 through the first slot 1313, which can prevent the mounting bracket 1311 from moving axially and rotating within the sleeve 1318.

[0078] The heating element 131 also includes a connector 1315. A second slot 1317 is provided at one end of the mounting bracket 1311 of the heating element 131 near the first air outlet 121 and the second air outlet 133. The connector 1315 is connected to the sleeve 1318, and passes through the second slot 1317. The cooperation between the second slot 1317 and the connector 1315 prevents the mounting bracket 1311 from rotating, and facilitates the disassembly of the mounting bracket 1311 for easy replacement of the heating element 132.

[0079] Understandably, please refer to Figure 7 A temperature sensor 1314 and a fuse 1316 are installed at one end of the mounting bracket 1311 of the heating element 131 near the second air outlet 133. The temperature sensor 1314 and the fuse 1316 are electrically connected to the control unit 14 and the heating element 132. The mounting bracket 1311 in the heating element 131 is provided with a protrusion, which fixes the temperature sensor 1314 and the fuse 1316 to the mounting bracket 1311. The temperature sensor 1314 can monitor the airflow of the dual-channel blower in real time. At the same time, when the temperature of the heating element 132 is too high, the fuse 1316 cuts off the circuit of the heating element 132, improving the safety factor of the dual-channel blower.

[0080] Understandably, please refer to Figure 1 The outer casing unit 12 also includes an air inlet rear casing 123, which is disposed on the side of the body casing 143 where the second air inlet 134 is disposed. The air inlet rear casing 123 can prevent debris from entering the body and protect the user from injury caused by the fan assembly 135.

[0081] Furthermore, the control board 141 is located between the fan assembly 135 and the air inlet rear cover 123. The control board 141 is located between the air inlet rear cover 123 and the body housing 143, which can further utilize the body space and reduce the overall size of the dual-air duct blower.

[0082] Understandably, please refer to Figure 1 The dual-airflow blower in this embodiment also includes a hollow air outlet unit 11. The two ends of the air outlet unit 11 are provided with a third air inlet 112 and a third air outlet 111 that are connected. The third air inlet 112 is connected to the first air outlet 121.

[0083] The air outlet unit 11 also includes a first air guide 113, which is disposed between the third air inlet 112 and the first air outlet 121. The airflow from the first air outlet 121 needs to pass through the first air guide 113 to reach the third air outlet 111. The first air guide 113 further pressurizes the heated airflow and makes the airflow more uniform.

[0084] Understandably, please refer to the following: Figures 8-10 The outer casing unit 12 also includes a rotating component 115 and a handle 114. The handle 114 is connected to the side of the outer casing unit 12. The hollow casing and the handle 114 are rotatably connected via the rotating component 115. The handle 114 can be folded after rotating at a certain angle relative to the outer casing unit 12. The handle 114 can be selected to meet the user's needs in more scenarios. At the same time, the handle 114 can be folded, making the dual-channel hair dryer of the present invention more convenient to carry and store.

[0085] Three control buttons are provided on the outer surface of the handle 114: a power button 1143, a temperature button 1141, and a fan speed button 1142. A circuit board is located inside the handle 114; the three control buttons are electrically connected to the circuit board, which in turn is electrically connected to the control unit 14. The fan speed of the fan assembly 135 and the temperature of the heating element 132 can be adjusted using the control buttons, thereby controlling the airflow speed and temperature of the dual-channel blower.

[0086] The dual-channel blower provided by the present invention starts the fan assembly 135 in the main unit 13 through the control unit 14, and the fan blades in the fan assembly 135 begin to rotate to draw in air; the external airflow passes through the air intake rear shell 123 in the outer shell unit 12 and enters the first air inlet 122; the airflow after entering the first air inlet 122 passes through the first gap 1411 and the clearance hole 142 of the control board 141 to reach the second gap 1422, and at the same time, the airflow passing through can dissipate heat and cool the control board 141; then the airflow passes through the fan assembly 135 and enters the airflow channel 144 of the main unit 13 from the second air inlet 134; the airflow reaching the airflow channel 144 is guided by the second air guide 136 to the receiving space in the heating component 131, and after being heated by the heating components 132 in multiple receiving spaces, the airflow is discharged from the second air outlet 133, then guided by the first air guide 113 to the first air outlet 121, and finally the airflow flows out to the outside through the third air inlet 112 and the third air outlet 111 of the air outlet unit 11.

[0087] In the embodiments provided by this invention, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B solely based on A; B can also be determined based on A and / or other information.

[0088] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Those skilled in the art should also recognize that the embodiments described in the specification are optional embodiments, and the actions and modules involved are not necessarily essential to the invention.

[0089] Compared with the prior art, the dual-duct hair dryer of the present invention has the following advantages:

[0090] 1. The main unit of the dual-channel blower of the present invention includes a housing, a heating element, and a fan assembly. The housing has at least two airflow channels, and the two ends of the airflow channels are respectively provided with a second air inlet and a second air outlet that connect to the outside. The fan assembly is located near the second air inlet. The heating element is located in the airflow channels and near the second air outlet. The heating element includes a heating element, which is electrically connected to the control unit. The heating element has multiple receiving spaces, and the heating element is located in the receiving spaces.

[0091] The present invention controls the fan assembly to rotate through the control unit, so that the external airflow enters the blower body through the first air inlet, the airflow enters the main unit through the second air inlet, and the airflow is heated by the heating element in the main unit before flowing out through the first air outlet.

[0092] This invention heats the circulating airflow by setting up a heating element. The heating element has multiple receiving spaces, each containing a heating component, which achieves a more uniform heating effect. Because the heating components are distributed in multiple receiving spaces, heat can be transferred more evenly to the air outlet of the dual-channel blower, avoiding the problem of heat concentration in a certain area.

[0093] By incorporating multiple heating chambers, the total surface area of ​​the heating element can be increased, thereby improving the heating efficiency of the dual-channel hair dryer. Each chamber can provide independent heating capacity, fully utilizing the heat output of the heating element and accelerating the heating speed of the dual-channel hair dryer.

[0094] The multiple compartments provide a larger surface area for heat dissipation, which improves heat dissipation. This effectively prevents overheating of the heating elements, extends their lifespan, and reduces heat dissipation issues in dual-channel blowers.

[0095] The control unit of the present invention includes a control board, which is disposed between the first air inlet and the fan assembly. The control board is electrically connected to the fan assembly, and the control board is provided with clearance holes.

[0096] When the fan assembly is operating, the outside airflow passes sequentially through the first air inlet, the clearance hole, and the fan assembly. The control board can dissipate heat by relying on the air intake of the fan assembly, while the clearance hole ensures that the air intake of the fan assembly is not affected.

[0097] 2. The dual-duct blower of the present invention further includes a hollow air outlet unit. The air outlet unit has a third air inlet and a third air outlet connected at both ends. The third air inlet is connected to the first air outlet. The air outlet unit also includes a first air guide, which is disposed between the third air inlet and the first air outlet. The airflow from the first air outlet must pass through the first air guide to reach the third air outlet. The first air guide further pressurizes the heated airflow and makes the airflow more uniform.

[0098] 3. The outer shell unit of the dual-channel hair dryer of the present invention further includes a rotating component and a handle. The handle is connected to the side of the outer shell unit. The hollow shell and the handle are rotatably connected by the rotating component. The handle can be folded after rotating at a certain angle relative to the outer shell unit. The handle can be selected to meet the user's needs in more scenarios. At the same time, the handle can be folded, making the dual-channel hair dryer of the present invention more convenient to carry and store.

[0099] 4. The outer casing unit of the dual-airflow hair dryer of the present invention further includes an air inlet rear shell, which is disposed on the side of the main body housing where the second air inlet is located. The air inlet rear shell can prevent debris from entering the main body and protect the user from injury caused by the fan assembly. The control board is located between the fan assembly and the air inlet rear shell. The placement of the control board between the air inlet rear shell and the main body housing can further utilize the space in the main body and reduce the overall size of the dual-airflow hair dryer.

[0100] There is a first gap between the edge of the control board and the inner wall of the housing unit, and a second gap between the control board and the main unit. The first and second gaps are interconnected. The first and second gaps provide more airflow channels for the fan assembly.

[0101] 5. The dual-channel blower heating unit of the present invention includes a mounting bracket and a sleeve, which form multiple receiving spaces. One end of the mounting bracket near the second air inlet is recessed away from the fan assembly to form a recessed portion, in which the fan assembly is partially accommodated. The recessed portion further reduces the length of the unit body. The heating assembly also includes a second air guide, which is detachably connected to the mounting bracket and positioned near the recessed portion. Airflow from the fan assembly into the heating assembly must pass through the second air guide, which directs the airflow discharged from the fan assembly into a space within the sleeve near the side wall, thereby pressurizing the airflow and increasing its velocity. Simultaneously, this allows the airflow to fully pass through the heating element positioned in this space, improving the heating efficiency of the dual-channel blower.

[0102] 6. The mounting plate of the heating unit of the present invention is provided with a first slot at one end near the second air outlet. The mounting bracket is snapped onto the sleeve through the first slot, and the mounting bracket is fixed on the sleeve through the first slot.

[0103] The heating element also includes a connector. A second slot is provided at one end of the mounting bracket of the heating element near the first and second air outlets. The connector is attached to the sleeve and passes through the second slot. The cooperation between the second slot and the connector prevents the mounting bracket from rotating and facilitates disassembly of the mounting bracket for easy replacement of the heating element.

[0104] A temperature sensor and a fuse are installed on the mounting plate of the heating element near the second air outlet. The temperature sensor and fuse are electrically connected to the control unit and the heating element. The temperature sensor and fuse can monitor the airflow of the dual-channel blower in real time, and cut off the heating element circuit when the heating element temperature is too high, thereby improving the safety of the dual-channel blower.

[0105] The present invention has provided a detailed description of a dual-duct blower according to its embodiments. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention. Any modifications, equivalent substitutions, and improvements made within the principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dual-duct hair dryer, characterized in that: It includes a hollow outer shell unit, and a control unit and a main unit disposed within the outer shell unit; The outer casing unit includes a first air inlet and a first air outlet that communicate with the outside. The main unit includes a housing, a heating element, and a fan assembly. The housing has at least two airflow channels, with a second air inlet and a second air outlet at each end of the airflow channels, which are connected to the outside. The fan assembly is located near the second air inlet. The control unit includes a control board disposed between the first air inlet and the fan assembly. The control board is electrically connected to the fan assembly. The control board is provided with clearance holes. There is a first gap between the edge of the control board and the inner sidewall of the outer casing unit. There is a second gap between the control board and the main unit. The first gap and the second gap are interconnected. The first air inlet and the second air inlet are connected, and the first air outlet and the second air outlet are connected; The heating element is disposed within the airflow channel and is positioned close to the second air outlet. The heating component includes a heating element, which is electrically connected to the control unit. The heating component has multiple receiving spaces, and the heating element is disposed within the receiving spaces.

2. The dual-duct hair dryer as described in claim 1, characterized in that: It also includes a hollow air outlet unit, with a third air inlet and a third air outlet connected at both ends. The third air inlet is connected to the first air outlet. The air outlet unit also includes a first air guide, which is disposed between the third air inlet and the first air outlet.

3. The dual-duct blower as described in claim 1, characterized in that: The housing unit also includes a rotating component and a handle. The handle is connected to the side of the housing unit. The housing unit and the handle are rotatably connected through the rotating component. The handle can be folded after rotating at a certain angle relative to the housing unit.

4. The dual-duct blower as described in claim 1, characterized in that: The outer casing unit also includes an air inlet rear casing, which is disposed on the side of the housing where the second air inlet is located, and the control board is located between the fan assembly and the air inlet rear casing.

5. The dual-duct blower as described in claim 1, characterized in that: The heating element includes a mounting bracket and a sleeve, which form a plurality of receiving spaces. One end of the mounting bracket near the second air inlet is recessed in a direction away from the fan assembly to form a recessed portion, and the fan assembly is partially received within the recessed portion.

6. The dual-duct blower as described in claim 5, characterized in that: The heating component also includes a second air guide, which is detachably connected to the mounting bracket and is located near the recess.

7. The dual-duct blower as described in claim 5, characterized in that: The mounting bracket of the heating element is provided with a first slot at one end near the second air outlet, and the mounting bracket is snapped onto the sleeve through the first slot.

8. The dual-duct hair dryer as described in claim 5, characterized in that: The heating element also includes a connector. A second slot is provided at one end of the mounting bracket of the heating element near the first air outlet and the second air outlet. The connector is connected to the sleeve and passes through the second slot.

9. The dual-duct hair dryer as described in claim 1, characterized in that: A temperature sensor and a fuse are installed at one end of the mounting bracket of the heating element near the second air outlet. The temperature sensor and the fuse are electrically connected to the control unit and the heating element.

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