Spraying device with blowing and spraying function

Abstract

The application relates to the field of spraying devices, in particular to a spraying device with blowing and spraying functions, which comprises a blower, a surface cover, a circuit board and a controller, the blower comprises a shell, a fan blade and a motor, the back panel of the shell is spaced apart with an air inlet, the front panel of the shell is spaced apart with an air outlet, the fan blade and the motor are arranged in the inner cavity of the shell, and the rotating shaft of the motor is connected with the fan blade; the front panel of the shell is provided with a containing cavity, the containing cavity is spaced apart with an air inlet channel corresponding to the position of the inner cavity of the shell, so that the airflow generated by the fan blade enters the containing cavity through the air inlet channel; the surface cover is spaced apart with a nozzle, the outlet of the nozzle is provided with a microporous spray plate, the airflow generated by the fan blade can not only realize the conventional blowing function, but also can be partially introduced into the containing cavity and carry the micro-particles after aromatherapy or atomization to be sprayed out through the nozzle and the microporous spray plate, so that the composite functions of blowing, humidifying and fragrance diffusion are realized.

Description

Technical Field

[0001] This invention relates to the field of spraying devices, and particularly to a spraying device with blowing and spraying functions. Background Technology

[0002] Spray devices are widely used in air humidification, aromatherapy, and air purification. Their main function is to atomize liquid media into a spray or diffuse fragrances and other gases into the surrounding environment through airflow to achieve humidification or aromatherapy effects. Fan-type devices, on the other hand, are mainly used to generate airflow to achieve air circulation or blowing. In existing technologies, spraying and blowing functions usually exist independently and lack effective integration. This results in users having to rely on multiple devices simultaneously in actual use, which is inconvenient to operate and takes up a lot of space.

[0003] Existing spray devices mostly rely on atomizers or pressurization devices to spray liquid, or on airflow to create a fragrance diffuser by contacting aromatherapy tablets. However, their airflow capacity is limited, making it difficult to create a noticeable sense of air movement. Furthermore, spray devices typically only provide localized humidification or aromatherapy effects, failing to meet users' comprehensive needs for airflow, rapid cooling, or a pleasant breeze. On the other hand, while existing fans or hair dryers can generate strong airflow, they usually lack liquid spraying capabilities.

[0004] Therefore, in the existing technology, the spraying function and the blowing function cannot be effectively integrated, and users cannot achieve air humidification, fragrance diffusion and air circulation at the same time through a single device, resulting in a poor user experience. Summary of the Invention

[0005] The purpose of this invention is to provide a spraying device with both blowing and spraying functions that achieves a combined blowing and spraying function.

[0006] The objective of this invention is achieved as follows:

[0007] A spray device with blowing and spraying functions includes a blower, a face cover, a circuit board, and a controller. The blower includes a housing, fan blades, and a motor. The back panel of the housing has an air inlet spaced apart, and the front panel of the housing has an air outlet spaced apart. The fan blades and the motor are placed inside the housing, and the motor shaft is connected to the fan blades.

[0008] The front panel of the outer casing is provided with a receiving cavity, and an air inlet channel is provided at a distance from the inner cavity of the outer casing, so that the airflow generated by the fan blade enters the receiving cavity through the air inlet channel;

[0009] The cavity contains a PTC heating element and a temperature sensor. The motor, PTC heating element, temperature sensor and controller are electrically connected to the circuit board. The controller controls the start and stop of the PTC heating element and the motor.

[0010] The faceplate is provided with nozzles spaced apart, and the nozzle outlet is provided with a micro-orifice spray plate. The center of the micro-orifice spray plate is provided with a central micro-orifice area, and the periphery of the central micro-orifice area is provided with a peripheral diffusion orifice area. The aperture of the micro-orifice in the central micro-orifice area is smaller than the aperture of the micro-orifice in the peripheral diffusion orifice area. The faceplate is detachably mounted on the front panel and the faceplate closes the accommodating cavity.

[0011] By incorporating a receiving cavity and air inlet channel into the hair dryer's structure, the airflow generated by the fan blades not only performs its regular blowing function but also partially enters the receiving cavity, carrying aromatherapy or atomized particles which are then sprayed out through nozzles and a microporous spray plate. This achieves a combined function of blowing, humidifying, and fragrance diffusion. The wide-range airflow generated by the blowing not only provides a noticeable breeze but also effectively propels the fragrance gas or spray to diffuse rapidly throughout the room, significantly improving coverage and uniformity. Simultaneously, the zoned aperture design of the microporous spray plate ensures a fine and gentle spray, preventing localized over-humidification or excessive fragrance concentration. Furthermore, the receiving cavity can flexibly accommodate aromatherapy tablets or atomizing devices, giving the device greater applicability and scalability. Overall, this design achieves multiple air treatment effects with a single device, offering multifunctionality, ease of use, effectively enhancing the user experience, and saving space.

[0012] The objective of this invention can also be achieved by the following technical measures:

[0013] Furthermore, the microporous spray plate is a ceramic sintered plate, the pore diameter of the micropores in the central microporous area ranges from 0.05mm to 0.2mm, and the pore diameter of the micropores in the peripheral diffusion area ranges from 0.3mm to 0.8mm.

[0014] Using a ceramic sintered plate as the microporous spray plate offers advantages such as high temperature resistance, corrosion resistance, and long service life, ensuring a stable and reliable spraying process. The central microporous zone features smaller orifice diameters (0.05mm-0.2mm), atomizing the liquid into finer, more uniform micron-sized particles, enhancing the delicacy and comfort of humidification and aromatherapy diffusion. The peripheral diffusion zone features larger orifice diameters (0.3mm-0.8mm), increasing the spray volume and diffusion speed while maintaining atomization effectiveness, allowing the spray to quickly cover a wider area. This zoned design of the central and peripheral orifice zones achieves a balance between localized fine atomization and overall efficient diffusion, not only improving air humidification and fragrance diffusion but also reducing the risk of clogging, meeting the requirements for spray uniformity, stability, and applicability.

[0015] Furthermore, it also includes an odor-releasing sheet, which is detachably placed within the accommodating cavity and in contact with the PTC heating element.

[0016] By placing a removable odor-releasing plate within the accommodating cavity and placing it in direct contact with the PTC heating element, the constant-temperature heating characteristics of the PTC heating element can be used to stably heat the odor-releasing plate, allowing the fragrance components to be released evenly and controllably and diffused into the environment with the airflow. This avoids odor distortion and shortened lifespan caused by uneven heating or overheating. At the same time, the removable structure allows users to replace different types or concentrations of odor-releasing plates as needed, realizing personalized air conditioning functions. This design not only improves the efficiency and uniformity of fragrance diffusion but also enhances the functional expandability and ease of use of the device.

[0017] Furthermore, it also includes an atomizing device, the size of which is smaller than the size of the accommodating cavity. The atomizing device is detachably disposed within the accommodating cavity. The bottom wall of the atomizing device has a spray nozzle. An atomizing channel is formed between the bottom wall of the atomizing device and the inner side wall of the accommodating cavity. The inner wall of the atomizing channel is coated with a hydrophobic coating. The bottom wall of the accommodating cavity has an air inlet channel corresponding to the position of the atomizing channel. The faceplate has a nozzle corresponding to the position of the atomizing channel. The spray nozzle, the nozzle, and the air inlet channel are all connected to the atomizing channel.

[0018] By incorporating a detachable atomizing device within the accommodating cavity and creating a spray nozzle on its bottom wall, the atomized particles can form a linked airflow through the atomization channel and the air inlet channel. This achieves the effect of efficiently carrying the atomized particles with the airflow and uniformly spraying them out through the nozzle. The atomizing device is smaller than the accommodating cavity, facilitating installation, removal, and replacement, and creating an independent atomization channel between the device and the cavity wall, ensuring thorough mixing of the airflow and droplets. The inner wall of the channel is coated with a hydrophobic coating, effectively preventing liquid residue and condensation, reducing the risk of clogging and contamination, and improving spray stability and device durability. This achieves efficient coupling of atomization and air supply, resulting in a fine spray with a wide diffusion range, and is easy to maintain and replace, further enhancing the device's functional flexibility and user experience.

[0019] Furthermore, it also includes an air pump, and the bottom wall of the accommodating cavity has an air inlet corresponding to the atomization channel. The inlet of the air pump is used to connect with the outside air, and the outlet of the air pump is connected to the air inlet.

[0020] By incorporating an air pump within the accommodating cavity and connecting its outlet to the air inlet of the atomizing channel, outside air can be actively drawn in and introduced at high speed into the atomizing channel. This creates a stronger carrying airflow within the atomizing channel, accelerating the mixing and ejection of atomized particles and significantly improving the efficiency and coverage of the spray diffusion. Simultaneously, the independent air pump supply system maintains a stable spray output even when the fan blades are not operating or running at low speed, ensuring the continuity and flexibility of the device's function. This design not only enhances the jetting power and improves the uniformity and fineness of the spray but also improves the adaptability and reliability of the device in various application scenarios.

[0021] Furthermore, the atomizing channel is provided with a contraction section, a mixing section and a diffusion section in sequence along the airflow direction, the cross-sectional area of ​​the contraction section gradually decreases along the airflow direction, and the contraction section is connected to the air inlet channel;

[0022] The mixing section is provided with a guide ridge to enhance the mixing uniformity of airflow and atomized particles. The spray nozzle faces the mixing section, and the spray direction of the spray nozzle is perpendicular to the airflow direction in the mixing section.

[0023] The cross-sectional area of ​​the diffuser section gradually increases along the airflow direction, and the diffuser section is connected to the nozzle.

[0024] This atomization channel employs a segmented structure design comprising a contraction section, a mixing section, and a diffusion section. The contraction section gradually reduces its cross-sectional area to accelerate the incoming airflow, enhancing its carrying capacity. The spray nozzle faces the mixing section, and the spray direction is perpendicular to the airflow direction. Guide ridges are incorporated within the mixing section to significantly enhance the turbulence and mixing uniformity between the airflow and atomized particles, resulting in fully dispersed and refined droplets. The diffusion section gradually increases its cross-sectional area, causing the mixed aerosol mist to decelerate stably and diffuse evenly before being smoothly ejected from the nozzle. This structure effectively improves the fineness, uniformity, and diffusion range of the spray, enhances spray stability and user experience, and reduces the risk of droplet aggregation and clogging.

[0025] Furthermore, the ratio of the inlet cross-sectional area of ​​the contraction section to the outlet cross-sectional area of ​​the contraction section is 2:1, the height of the guide ridge is 0.2mm to 1.0mm, and the distance between two adjacent guide ridges is 1mm to 5mm, and the ratio of the outlet cross-sectional area of ​​the diffusion section to the inlet cross-sectional area of ​​the diffusion section is 1.8:1.

[0026] By setting the cross-sectional area ratio of the inlet to the outlet of the contraction section to 2:1, a significant airflow acceleration effect can be achieved within a limited space, providing sufficient power for the subsequent carrying and dispersion of atomized particles. The mixing section incorporates guide ridges with a height of 0.2mm to 1.0mm and a spacing of 1mm to 5mm, which enhance local turbulence while ensuring airflow stability, resulting in thorough mixing and uniform distribution of atomized particles and airflow. The diffusion section employs a 1.8:1 cross-sectional area ratio of outlet to inlet, effectively reducing flow velocity while maintaining airflow kinetic energy, allowing the mixed mist to diffuse smoothly. This optimized combination of structural parameters improves the fineness and uniformity of the spray while ensuring the stability of the spraying process and a wide-area coverage effect.

[0027] Furthermore, the atomizing device includes a housing, a control circuit, a battery, a liquid storage bottle, and an atomizing plate. The housing is provided with an atomizing chamber, and the top of the housing has a nozzle connection port communicating with the atomizing chamber. The bottom of the housing has a spray nozzle communicating with the atomizing chamber. The atomizing plate is disposed inside the atomizing chamber near the spray nozzle. The battery and the control circuit are disposed inside the housing. The battery and the atomizing plate are electrically connected to the control circuit. The nozzle of the liquid storage bottle is inserted into the nozzle connection port to connect the liquid storage bottle and the atomizing chamber.

[0028] By integrating a housing, atomizing chamber, liquid storage bottle, spray nozzle, and atomizing plate into the atomizing device, and configuring a battery and control circuit inside the housing, the atomizing device can independently achieve liquid atomization. The design of the atomizing plate close to the spray nozzle shortens the liquid path, improving atomization efficiency and spray uniformity. The combination of battery and control circuit not only improves portability and independence but also facilitates intelligent control, such as power adjustment or protection functions, enhancing the device's safety and user experience.

[0029] Furthermore, the housing is provided with a first signal contact, which is electrically connected to the control circuit, and the inner wall of the accommodating cavity is provided with a second signal contact, which is electrically connected to the circuit board.

[0030] The atomizing device is detachably installed in the accommodating cavity. The first signal contact and the second signal contact are in contact. The signal emitted by the circuit board is transmitted to the control circuit through the second signal contact and the first signal contact, thereby controlling the start and stop of the atomizing plate.

[0031] By setting a first signal contact and a second signal contact, and ensuring that they automatically contact after the atomizing device is inserted into the receiving cavity, the control signal of the circuit board can be seamlessly transmitted to the control circuit of the atomizing device, thereby realizing the start and stop control of the atomizing plate. This contact-type signal transmission method avoids the need for additional cable plugging and unplugging, improves the convenience of installation and disassembly, and ensures the stability and reliability of signal transmission, thus achieving modular quick replacement and efficient control.

[0032] Furthermore, it also includes a base and a battery. The base has a left support arm and a right support arm on its two sides, and the left support arm, the base and the right support arm form a rotating cavity.

[0033] The hair dryer is disposed in the rotating cavity, and its outer shell is rotatably connected to the left support arm and the right support arm respectively, so that the hair dryer can rotate in the rotating cavity with the connection point as the rotation center, thereby adjusting the air delivery direction and the spray direction.

[0034] The hair dryer has a light on the top of its housing, and the base has a battery housing cavity, in which the battery is detachably installed.

[0035] The controller is mounted on the base. The battery, lighting lamp, motor, PTC heating element and temperature sensor are electrically connected to the circuit board. The controller includes a knob for controlling the start and stop of the motor and PTC heating element and a switch for controlling the start and stop of the lighting lamp.

[0036] The base, left support arm, and right support arm form a rotating cavity, within which the blower is mounted in a rotating manner. This allows for flexible rotation around the support point, adjusting the direction of airflow and jet, thus enhancing the device's adaptability and ease of use. The base includes a battery compartment for easy battery removal and replacement, ensuring long-lasting battery life. A light on the top of the casing enhances ease of use and versatility. The controller manages the motor, PTC heating element, and light, enabling intelligent management and further improving the device's overall practicality and user experience.

[0037] The beneficial effects of this invention are as follows:

[0038] This invention, through the combination of a detachable odor-releasing sheet and an atomizing device, combined with a motor-driven airflow, not only has a basic blowing function, but also allows users to select aromatherapy release or spray humidification as needed, meeting the multi-scenario and multi-functional usage needs of users.

[0039] The present invention features a continuous structural design of a contraction section, a mixing section, and a diffusion section, which allows the airflow and droplets to mix thoroughly. The droplets are then refined and diffused evenly, significantly improving the fineness and coverage of the spray and preventing fog accumulation or uneven spraying.

[0040] This invention uses a ceramic sintered microporous spray plate. The central micropores achieve delicate and gentle atomization spray, while the peripheral diffusion holes ensure the spray volume and coverage, taking into account both comfort and efficiency. It also has the advantages of high temperature resistance, anti-clogging, and long-term stability.

[0041] This invention actively introduces outside air through an air pump, maintaining a stable spray effect even when the fan blades are not running or are running at low speed, effectively enhancing the airflow speed and diffusion capacity, and ensuring that the fragrance or mist diffuses continuously and evenly.

[0042] This invention features a detachable design for the scent release tablet, atomizing device, face cover, and battery, allowing users to quickly replace scent tablets, replenish liquids, or maintain equipment, meeting personalized needs while improving the device's lifespan and convenience. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of a spray device with blowing and spraying functions.

[0044] Figure 2This is another schematic diagram of a spray device with blowing and spraying functions.

[0045] Figure 3 An exploded view showing the assembly relationship between the hair dryer and the base.

[0046] Figure 4 A schematic diagram of the assembly of the front cover and front panel.

[0047] Figure 5 for Figure 4 A sectional view.

[0048] Figure 6 This is an exploded view showing the assembly relationship between the front cover and the front panel.

[0049] Figure 7 This is a schematic diagram of the faceplate (without the micro-orifice spray plate).

[0050] Figure 8 This is a sectional view of the cover.

[0051] Figure 9 This is a schematic diagram of a micro-orifice spray plate.

[0052] Figure 10 for Figure 5 Enlarged view of part A.

[0053] Figure 11 A cross-sectional view showing the atomizing device positioned within the accommodating cavity.

[0054] Figure 12 for Figure 11 Enlarged view of part B (illustration of fog diffusion).

[0055] Figure 13 This is a cross-sectional view of the atomizing device.

[0056] Figure 14 This is a cross-sectional view of an odor-releasing tablet.

[0057] Figure 15 A cross-sectional view of an odor-releasing tablet placed inside a receiving cavity.

[0058] Figure 16 A cross-sectional view of an odor-releasing tablet placed in an atomizing channel. Detailed Implementation

[0059] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0060] Example 1, combined with Figures 1 to 13As shown, a spray device with blowing and spraying functions includes a blower 1, a face cover 2, a circuit board and a controller 10. The blower 1 includes a housing 11, a fan blade 12 and a motor 13. The back panel 111 of the housing 11 has an air inlet 112 spaced apart, and the front panel 113 of the housing 11 has an air outlet 114 spaced apart. The fan blade 12 and the motor 13 are placed in the inner cavity of the housing 11, and the shaft of the motor 13 is connected to the fan blade 12.

[0061] The front panel 113 of the outer casing 11 is provided with a receiving cavity 3. The receiving cavity 3 is provided with an air inlet channel 31 at a distance from the inner cavity of the outer casing 11, so that the airflow generated by the fan blade 12 enters the receiving cavity 3 through the air inlet channel 31.

[0062] The cavity 3 contains a PTC heating element 32 and a temperature sensor 33. The motor 13, the PTC heating element 32, the temperature sensor 33 and the controller 10 are electrically connected to the circuit board. The controller 10 controls the start and stop of the PTC heating element 32 and the motor 13.

[0063] The face cover 2 is provided with nozzles 21 spaced apart. The nozzles 21 are provided with micro-hole spray plates 4 at their outlets. The center of the micro-hole spray plate 4 is provided with a central micro-hole area 41. The periphery of the central micro-hole area 41 is provided with a peripheral diffusion hole area 42. The diameter of the micro-holes 43 in the central micro-hole area 41 is smaller than the diameter of the micro-holes 43 in the peripheral diffusion hole area 42. The face cover 2 is detachably mounted on the front panel 113 and closes the accommodating cavity 3.

[0064] Furthermore, the microporous spray plate 4 is a ceramic sintered plate, the diameter of the micropores 43 in the central microporous region 41 is in the range of 0.05mm-0.2mm, and the diameter of the micropores 43 in the peripheral diffusion region 42 is in the range of 0.3mm-0.8mm.

[0065] Furthermore, it also includes an atomizing device 6, the size of which is smaller than the size of the accommodating cavity 3. The atomizing device 6 is detachably disposed in the accommodating cavity 3. The bottom wall of the atomizing device 6 has a spray nozzle 61. The bottom wall of the atomizing device 6 and the inner side wall of the accommodating cavity 3 form an atomizing channel 7. The inner wall of the atomizing channel 7 is coated with a hydrophobic coating. The bottom wall of the accommodating cavity 3 has an air inlet channel 31 corresponding to the position of the atomizing channel 7. The faceplate 2 has a nozzle 21 corresponding to the position of the atomizing channel 7. The spray nozzle 61, the nozzle 21 and the air inlet channel 31 are all connected to the atomizing channel 7.

[0066] Furthermore, it also includes an air pump. The bottom wall of the accommodating cavity 3 has an air inlet 71 corresponding to the atomization channel 7. The inlet of the air pump is used to connect with the outside air, and the outlet of the air pump is connected to the air inlet 71.

[0067] Furthermore, the atomizing channel 7 is provided with a contraction section 72, a mixing section 73 and a diffusion section 74 in sequence along the airflow direction. The cross-sectional area of ​​the contraction section 72 gradually decreases along the airflow direction, and the contraction section 72 is connected to the air inlet channel 31.

[0068] The mixing section 73 is provided with a guide ridge 731 for enhancing the mixing uniformity of airflow and atomized particles. The spray nozzle 61 faces the mixing section 73, and the spray direction of the spray nozzle 61 is perpendicular to the airflow direction in the mixing section 73.

[0069] The cross-sectional area of ​​the diffuser section 74 gradually increases along the airflow direction, and the diffuser section 74 is connected to the nozzle 21.

[0070] Furthermore, the ratio of the inlet cross-sectional area to the outlet cross-sectional area of ​​the contraction section 72 is 2:1, the height of the guide ridge 731 is 0.2mm to 1.0mm, and the distance between two adjacent guide ridges 731 is 1mm to 5mm, and the ratio of the outlet cross-sectional area to the inlet cross-sectional area of ​​the diffusion section 74 is 1.8:1.

[0071] Furthermore, the atomizing device 6 includes a housing 62, a control circuit 63, a battery 64, a liquid storage bottle 65, and an atomizing plate 68. The housing 62 is provided with an atomizing chamber 66. The top of the housing 62 has a nozzle connection port 67 communicating with the atomizing chamber 66, and the bottom of the housing 62 has a spray port 61 communicating with the atomizing chamber 66. The atomizing plate 68 is disposed in the atomizing chamber 66 near the spray port 61. The battery 64 and the control circuit 63 are disposed in the housing 62. The battery 64 and the atomizing plate 68 are electrically connected to the control circuit 63. The nozzle 651 of the liquid storage bottle 65 is inserted into the nozzle connection port 67 to connect the liquid storage bottle 65 and the atomizing chamber 66.

[0072] Furthermore, the housing 62 is provided with a first signal contact 621, which is electrically connected to the control circuit 63, and the inner wall of the accommodating cavity 3 is provided with a second signal contact 34, which is electrically connected to the circuit board.

[0073] The atomizing device 6 is detachably disposed in the accommodating cavity 3. The first signal contact 621 and the second signal contact 34 are in contact. The signal emitted by the circuit board is transmitted to the control circuit 63 through the second signal contact 34 and the first signal contact 621, thereby controlling the start and stop of the atomizing plate 68.

[0074] Furthermore, it also includes a base 8 and a battery 9. The base 8 has a left support arm 81 and a right support arm 82 on its two sides, and the left support arm 81, the base 8 and the right support arm 82 form a rotating cavity 83. The hair dryer 1 is disposed in the rotating cavity 83, and the left and right sides of its outer casing 11 are rotatably connected to the left support arm 81 and the right support arm 82, respectively, so that the hair dryer 1 can rotate in the rotating cavity 83 with the connection point as the rotation center, thereby adjusting the air delivery direction and the spray direction. The top of the outer casing 11 of the hair dryer 1 is provided with a light lamp 14, the base 8 is provided with a battery receiving cavity 84, and the battery 9 is detachably disposed in the battery receiving cavity 84.

[0075] The controller 10 is mounted on the base 8. The battery 9, the lighting lamp 14, the motor 13, the PTC heating element 32 and the temperature sensor 33 are all electrically connected to the circuit board. The controller 10 includes a knob 101 for controlling the start and stop of the motor 13, the PTC heating element 32 and the atomizing device 6 and a switch 102 for controlling the start and stop of the lighting lamp 14.

[0076] Operating method and benefits of placing the atomizing device 6: The user detachably inserts the atomizing device 6 into the receiving cavity 3, then installs the face cover 2. After starting the spray device, the airflow generated by the motor 13 driving the fan blades 12 is partly blown out from the air outlet 114 to create a breeze, and the other part of the airflow enters the atomizing channel 7 through the air inlet channel 31. It is fully mixed with the fine atomized particles generated by the atomizing plate 68 in the mixing section 73, and then smoothly sprayed through the diffusion section 74 and the nozzle 21 to achieve a combined effect of blowing and spraying humidification. This operation not only achieves simultaneous airflow and humidification, but also allows the mist particles to diffuse more widely and more evenly under the airflow. At the same time, the detachable design of the atomizing device 6 facilitates liquid addition and maintenance, meeting the user's multiple needs for convenient operation, air humidification and improved comfort.

[0077] The benefits of starting the air pump: After starting the air pump, outside air can be actively introduced into the air inlet 71 of the accommodating cavity 3 at high speed and enter the atomization channel 7, thereby enhancing the carrying and diffusion capacity of atomized particles; this external forced air intake method can not only maintain a stable spray effect when the fan blade 12 is not running or running at low speed, but also improve the flow rate and diffusion range of the spray, ensure the continuity and efficiency of air circulation and mist diffusion, and improve the adaptability and user experience of the device.

[0078] The function and effect of atomizing channel 7: As the core area for coupling spray particles with airflow, atomizing channel 7, through its rationally designed constriction section 72, mixing section 73, and diffusion section 74, allows the high-speed airflow and droplets to fully collide and mix turbulently within the mixing section 73, resulting in secondary refinement and uniform dispersion of the droplets. The diffusion section 74 then smoothly decelerates the mixed mist and discharges it evenly, avoiding problems such as local aggregation or uneven spraying. Overall, atomizing channel 7 achieves efficient carrying, uniform diffusion, and fine spraying of atomized particles, significantly improving the comfort and coverage of humidification and aromatherapy.

[0079] The effects and benefits of installing the micro-orifice spray plate 4 at the nozzle 21 outlet: The micro-orifice spray plate 4 at the nozzle 21 outlet utilizes a partitioned structure design with a central small orifice area and a peripheral large orifice area, ensuring both fine atomization and wide-area diffusion during the spraying process. The central micro-orifice 43 produces finer droplets, resulting in a soft and uniform spray experience; the larger peripheral orifice diameter ensures spray volume and coverage, improving diffusion speed and efficiency. The ceramic sintered micro-orifice spray plate 4 is not only resistant to high temperatures and corrosion, but also effectively prevents droplet splashing and clogging, ensuring stable and long-lasting spraying, and improving the overall performance and reliability of the device.

[0080] Combination Figures 14 to 15 As shown, the difference between Example 2 and Example 1 is that the user removes the atomizing device 6 used in Example 1 and instead places the scent release tablet 5 (e.g., aromatherapy tablet) in the accommodating cavity 3 in a detachable manner and puts it in contact with the PTC heating element 32.

[0081] Furthermore, the odor-releasing sheet 5 includes a supporting substrate layer 51 for enhancing airflow, a fragrance adsorption layer 52 for odor release, and a protective film layer 53 for controlling the fragrance evaporation rate. The fragrance adsorption layer 52 tightly covers the surface of the supporting substrate layer 51, and the protective film layer 53 covers the surface of the fragrance adsorption layer 52.

[0082] Furthermore, the supporting substrate layer 51 is a perforated foam board, which is made of thermoplastic polyurethane or polyethylene foam, and the porosity of the perforated foam board is 50%.

[0083] The fragrance adsorption layer 52 is made of porous polymer or fiber felt, the pore size of the fragrance adsorption layer 52 is in the range of 50-300 μm, and the porosity of the fragrance adsorption layer 52 is 40%-70%.

[0084] The protective film layer 53 is made of high-temperature plastic film, polyester film, or microporous polymer film. The thickness of the protective film layer 53 is 50-200 μm. The surface of the protective film has uniformly distributed release pores with a diameter of 50-200 μm. The porosity of the protective film layer 53 is 5%-20%.

[0085] The fragrance adsorption layer 52 is tightly attached to the supporting substrate layer 51 by hot pressing, bonding or mechanical pressing, and the protective film layer 53 is tightly attached to the fragrance adsorption layer 52 by hot pressing, bonding or mechanical pressing.

[0086] Instructions and benefits of using odor-releasing tablet 5:

[0087] The user places the scent release tablet 5 (aroma tablet) in a detachable manner inside the receiving cavity 3 and makes it contact with the PTC heating element 32. Then, the face cover 2 is installed. After starting the spray device, part of the airflow generated by the motor 13 driving the fan blade 12 is directly discharged from the air outlet 114 to form a blowing effect. The other part of the airflow enters the receiving cavity 3 through the air inlet channel 31 and comes into contact with the scent release tablet 5 heated by the PTC heating element 32. The airflow first passes through the supporting substrate layer 51 of the scent release tablet 5, and then mixes fully with the fragrance gas volatilized in the fragrance adsorption layer 52. Finally, it penetrates the release hole on the protective film layer 53 and carries the fragrance gas into the subsequent air channel. It is then sprayed into the external environment through the nozzle 21 and the microporous spray plate 4, thereby realizing the combined function of blowing and fragrance gas diffusion. This operation not only makes it easy for users to quickly change release tablets with different fragrances to meet personalized needs, but also disperses and evenly carries fragrance molecules when the airflow passes through the scent release tablet, making the fragrance diffusion more complete and longer lasting. Temperature sensor 33 monitors the heating temperature in real time and feeds it back to controller 10, keeping PTC heating element 32 at a constant temperature to ensure stable and long-lasting odor release, avoiding odor distortion due to overheating or affecting diffusion effect due to underheating, thereby improving air freshness and comfort.

[0088] Combination Figure 16 As shown, the difference between Example 3 and Example 1 is that Example 3 also includes an odor release sheet 5, which the user can detachably place in the atomization channel 7 (e.g., aromatherapy sheet).

[0089] Furthermore, the odor-releasing sheet includes a supporting substrate layer 51 for enhancing airflow permeability, a fragrance adsorption layer 52 for odor release, and a protective film layer 53 for controlling the fragrance evaporation rate. The fragrance adsorption layer 52 tightly covers the surface of the supporting substrate layer 51, and the protective film layer 53 covers the surface of the fragrance adsorption layer 52.

[0090] Furthermore, the supporting substrate layer 51 is a perforated foam board, which is made of thermoplastic polyurethane or polyethylene foam, and the porosity of the perforated foam board is 50%.

[0091] The fragrance adsorption layer 52 is made of porous polymer or fiber felt, the pore size of the fragrance adsorption layer 52 is in the range of 50-300 μm, and the porosity of the fragrance adsorption layer 52 is 40%-70%.

[0092] The protective film layer 53 is made of high-temperature plastic film, polyester film, or microporous polymer film. The thickness of the protective film layer 53 is 50-200 μm. The surface of the protective film has uniformly distributed release pores with a diameter of 50-200 μm. The porosity of the protective film layer 53 is 5%-20%.

[0093] The fragrance adsorption layer 52 is tightly attached to the supporting substrate layer 51 by hot pressing, bonding or mechanical pressing, and the protective film layer 53 is tightly attached to the fragrance adsorption layer 52 by hot pressing, bonding or mechanical pressing.

[0094] The operation method and benefits of placing the scent release sheet 5 in the atomizing channel 7: The user places the scent release sheet 5 in the atomizing channel 7 in a detachable manner, allowing it to directly contact the airflow passage. After the spray device is started, part of the airflow generated by the motor 13 driving the fan blades 12 is directly discharged through the air outlet 114 to achieve a blowing effect, while the other part enters the atomizing channel 7 through the air inlet channel 31 and flows through the scent release sheet 5. The airflow maintains good permeability when passing through the supporting substrate layer 51 and carries the fragrance molecules released from the fragrance adsorption layer 52. After being further uniformly mixed through the release holes of the protective film layer 53, it is finally sprayed into the external environment through the nozzle 21 and the microporous spray plate 4 with the airflow, thereby achieving the combined function of blowing and fragrance diffusion. Furthermore, when the atomizing device 6 is started synchronously, the atomized particles and fragrance gas are fully integrated in the mixing section 73 of the atomizing channel 7, and are sprayed together after passing through the contraction section 72 and the diffusion section 74 in sequence, achieving the output of a fragrant and moist airflow. This operating method not only allows users to flexibly switch between "simple fragrance diffusion" and "atomized fragrance" modes to meet the needs of different usage scenarios, but also utilizes the airflow mixing effect of the atomization channel to ensure that the fragrance and mist are distributed more evenly and for a longer period of time, thereby further enhancing the air freshness, humidification and comfort experience.

[0095] The terms used in this invention, such as "first," "second," etc., do not indicate any order, quantity, or importance, but are merely for distinction.

[0096] In this invention, terms such as "a," "an," etc., do not indicate a limitation on the quantity, but rather indicate the existence of at least one of the mentioned objects.

[0097] In this invention, terms indicating direction or location, such as top, bottom, side, longitudinal, transverse, middle, center, outer, inner, horizontal, vertical, left, right, above, and below, are used to reflect relative positions, not absolute positions. The embodiments described above merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this invention, and these all fall within the scope of protection of this invention. Therefore, the scope of protection of this invention should be determined by the appended claims.

Claims

1. A spraying device with blowing and spraying functions, comprising a blower, a face cover, a circuit board, and a controller, characterized in that: The hair dryer includes a housing, fan blades, and a motor. The back panel of the housing has an air inlet spaced apart, and the front panel of the housing has an air outlet spaced apart. The fan blades and the motor are placed inside the housing, and the motor shaft is connected to the fan blades. The front panel of the outer casing is provided with a receiving cavity, and an air inlet channel is provided at a distance from the inner cavity of the outer casing, so that the airflow generated by the fan blade enters the receiving cavity through the air inlet channel; The cavity contains a PTC heating element and a temperature sensor. The motor, PTC heating element, temperature sensor and controller are electrically connected to the circuit board. The controller controls the start and stop of the PTC heating element and the motor. The faceplate is provided with nozzles spaced apart, and the nozzle outlet is provided with a micro-orifice spray plate. The center of the micro-orifice spray plate is provided with a central micro-orifice area, and the periphery of the central micro-orifice area is provided with a peripheral diffusion orifice area. The aperture of the micro-orifice in the central micro-orifice area is smaller than the aperture of the micro-orifice in the peripheral diffusion orifice area. The faceplate is detachably mounted on the front panel and the faceplate closes the accommodating cavity. It also includes an atomizing device, the size of which is smaller than the size of the accommodating cavity. The atomizing device is detachably installed in the accommodating cavity. The bottom wall of the atomizing device has a spray nozzle. The bottom wall of the atomizing device and the inner side wall of the accommodating cavity form an atomizing channel. The inner wall of the atomizing channel is coated with a hydrophobic coating. The bottom wall of the accommodating cavity has an air inlet channel at the position corresponding to the atomizing channel. The faceplate is provided with a nozzle at the position corresponding to the atomizing channel. The spray nozzle, the nozzle and the air inlet channel are all connected to the atomizing channel. The atomizing channel is provided with a contraction section, a mixing section and a diffusion section in sequence along the airflow direction. The cross-sectional area of ​​the contraction section gradually decreases along the airflow direction, and the contraction section is connected to the air inlet channel. The mixing section is provided with a guide ridge to enhance the mixing uniformity of airflow and atomized particles. The spray nozzle faces the mixing section, and the spray direction of the spray nozzle is perpendicular to the airflow direction in the mixing section. The cross-sectional area of ​​the diffuser section gradually increases along the airflow direction, and the diffuser section is connected to the nozzle; The ratio of the inlet cross-sectional area of ​​the contraction section to the outlet cross-sectional area of ​​the contraction section is 2:

1. The height of the guide ridge is 0.2mm to 1.0mm, and the distance between two adjacent guide ridges is 1mm to 5mm. The ratio of the outlet cross-sectional area of ​​the diffusion section to the inlet cross-sectional area of ​​the diffusion section is 1.8:

1.

2. The spraying device with blowing and spraying functions according to claim 1, characterized in that: The microporous spray plate is a ceramic sintered plate, the pore diameter of the micropores in the central microporous area ranges from 0.05mm to 0.2mm, and the pore diameter of the micropores in the peripheral diffusion area ranges from 0.3mm to 0.8mm.

3. The spraying device with blowing and spraying functions according to claim 1, characterized in that: It also includes an odor-releasing sheet, which is detachably placed in the accommodating cavity and in contact with the PTC heating element.

4. The spraying device with blowing and spraying functions according to claim 1, characterized in that: It also includes an air pump, and the bottom wall of the accommodating cavity has an air inlet corresponding to the atomization channel. The inlet of the air pump is used to connect to the outside air, and the outlet of the air pump is connected to the air inlet.

5. The spraying device with blowing and spraying functions according to claim 1, characterized in that: The atomizing device includes a housing, a control circuit, a battery, a liquid storage bottle, and an atomizing plate. The housing has an atomizing chamber, and the top of the housing has a nozzle connection port communicating with the atomizing chamber. The bottom of the housing has a spray nozzle communicating with the atomizing chamber. The atomizing plate is disposed inside the atomizing chamber near the spray nozzle. The battery and the control circuit are disposed inside the housing and are electrically connected to the control circuit. The nozzle of the liquid storage bottle is inserted into the nozzle connection port to connect the liquid storage bottle and the atomizing chamber.

6. The spraying device with blowing and spraying functions according to claim 5, characterized in that: The housing is provided with a first signal contact, which is electrically connected to the control circuit. The inner wall of the accommodating cavity is provided with a second signal contact, which is electrically connected to the circuit board. The atomizing device is detachably installed in the accommodating cavity. The first signal contact and the second signal contact are in contact. The signal from the controller to control the start and stop of the atomizing device is transmitted to the control circuit through the circuit board, the second signal contact and the first signal contact, thereby controlling the start and stop of the atomizing plate.

7. The spraying device with blowing and spraying functions according to claim 1, characterized in that: It also includes a base and a battery. The base has a left support arm and a right support arm on its two sides, and the left support arm, the base and the right support arm form a rotating cavity. The hair dryer is set in the rotating cavity, and its outer shell is rotatably connected to the left support arm and the right support arm, respectively, so that the hair dryer can rotate in the rotating cavity with the connection point as the rotation center, thereby adjusting the air delivery direction and the spray direction. The hair dryer has a light on the top of its housing, and the base has a battery housing cavity, in which the battery is detachably installed. The controller is mounted on the base. The battery, lighting lamp, motor, PTC heating element and temperature sensor are electrically connected to the circuit board. The controller includes a knob for controlling the start and stop of the motor and PTC heating element and a switch for controlling the start and stop of the lighting lamp.

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