Portable handheld spray fan

Abstract

To provide a portable handheld atomizing fan. The device includes a head section 1 and a handle section 2. The head section is equipped with a fan module 3 capable of blowing air in an axial direction, with the fan module's airflow direction facing the user's direction of use. The head section includes an inner cover that covers the fan module and forms an air passage, and an outer cover that fits over the inner cover. The outer cover houses a water storage section, and an atomization section is located on the inside of the handle section, closest to the head, and the atomization section is connected to the water storage section. The atomization section has a spray nozzle that faces the same direction as the airflow, and the spray nozzle can spray water mist obliquely toward the fan's axis, with the water mist flowing in a direction that intersects with the airflow. This utility model has the advantage that fine water droplets can be directed to the user's skin surface with the assistance of the airflow, ensuring the efficiency and effectiveness of the fine water droplets' evaporation.

Description

[Technical Field]

[0001] This utility model belongs to the field of handheld fan technology, and particularly relates to a portable handheld spray fan. [Background technology]

[0002] The handheld spray fan uses an atomizing plate to atomize the water in the water tank, and then the wind from the fan blows the water mist. It is sprayed towards the user, and the flowing air causes tiny particles to adhere to the surface of the user's skin. It is a small, portable electrical device that evaporates water droplets, enhancing the cooling effect. Chinese patent application publication number 202020738057.2 is a front cover, a rear cover, a handle and a portable fan having a fan blade unit fixedly installed between a front cover and a rear cover. The paper discloses a spray fan with a water storage ring sealed and fixed to the handle. The cover and rear cover are fixed to the water storage ring, so the water storage ring is connected to the front cover and The water storage ring is located on the outer periphery of the rear cover. The spray plate is fixed to the bottom of the ring and is sealed, and the water storage section and the spray plate are connected. A water inlet is provided, and vent holes are arranged on the side wall of the water inlet. An end cap is attached to the water inlet. The end cap has a resilient plunger fixed to it that is inserted into the vent hole. In the above technical solution, water mist is sprayed from the first spray nozzle and the second spray nozzle. The spray direction of the second nozzle is forward, so the water droplets are ejected from the spray plate by their own weight and then projected along a trajectory. The atomized water droplets fall along a parabolic trajectory, which allows the atomized water droplets to fall in a position that is consistent with the position of the fan blades. The direction of the airflow blown out by the unit is shifted. The airflow generated by the blade parts is It does not directly affect the skin, and the water droplets are only released by the airflow from the blades once the user readjusts the direction of the airflow. However, the cooling effect is low and it is inconvenient to use. [Outline of the utility model]

[0003] To solve the shortcomings of existing technology, a portable handheld atomizing fan is provided. This utility model is realized by the following technical solutions: The portable handheld spray fan has a head and a handle, and the head can blow air in the axial direction. The fan module is provided with a fan that blows air in the direction that is correct for the user's use. The head section consists of an inner cover that covers the fan module and forms an airway, and an outer cover of the inner cover. The outer cover has a built-in water storage section, and the head is attached to the inside of the handle. The atomizing section is provided at the end close to the nozzle, and the atomizing section is connected to the water storage section. The spray nozzle is set in the same direction as the fan, and the water mist is sprayed obliquely toward the axis of the fan. The direction of flow of the water mist intersects with the direction of flow of the air current. When the user needs cooling, the device is turned on and the fan module The airflow flows over the surface of the user's skin, cooling them. When necessary, the spray nozzle is controlled to convert the water in the water reservoir into a water mist and spray it out. The air is jetted diagonally in the direction of the target, and after joining the airflow, the kinetic energy of the airflow hits the user's skin. It is transported to the surface of the skin and increases the cooling efficiency through physical evaporation. Here, users can adjust the airflow speed as needed, thereby improving the evaporation efficiency of the water mist. This allows you to control the amount of time the water mist stays on the user's skin. Some of the droplets are absorbed by the user's body surface, achieving a moisturizing effect. Here, the spray nozzle can be any existing atomizer that can convert water into water mist and provide initial kinetic energy. It may be formed by an outlet of the structure. Preferably, the outer cover includes a first water tank and a second water tank arranged opposite to each other along an axis. The first water tank is connected to a first annular tank fitted to the outside of the inner cover. The second water tank includes a second annular tank fitted to the outside of the inner cover, The second annular tank includes a second extension tank in communication with the second annular tank. The two have overlapping structures with circular grooves facing each other, and when they are assembled, the inner circular groove forms a water storage area. The atomizing section is formed when the first extension tank and the second extension tank are assembled. The first and second water tanks are combined to form a water storage section, making it possible to Compared to the method of supplying water to the nozzle from an attached water tank, the internal space of the hand fan is utilized more effectively. It is easy for users to hold and use. In a preferred embodiment, the second extension tank is provided with a spray plate at the end remote from the first extension tank. The atomization hole of the atomization plate becomes the spray outlet, and the cross-sectional shape of the fitting groove The shape is the same as that of the atomizing plate. The inner wall of the fitting groove in the axial direction is inclined, and the axis of the handle is It is arranged diagonally outward along the direction away from the head side, providing an attachment space for the atomization plate. This allows the water mist to be sprayed along a fixed direction. Preferably, the second extension tank has a side opening communicating with the fitting groove, This makes it easier to insert the connecting wire of the atomizing piece into the fitting groove, making it easier to attach the atomizing piece. Preferably, a seal ring is provided between the end faces where the atomizing piece and the axial inner wall of the fitting groove come into contact. This prevents water from seeping out through the gap between the atomizing piece and the fitting groove. This avoids the need for frequent water refills by the user and reduces the risk of other electronic components in the handheld. Reduce the possibility of causing a short circuit in the product and affecting user experience. . Preferably, the handle is provided with a protective cover at a position corresponding to the side used by the user. The protective cover is positioned in a position facing the spray nozzle in the circumferential direction, thereby preventing the inside of the handle from being damaged by the conventional spray nozzle. Isolates and protects functional parts and spray nozzles similar to the technical structure. Preferably, a protrusion is provided at the end of the protective cover on the spray port side, and a through-hole is provided inside the protrusion. The protrusion forms a sealed connection path between the spray nozzle and the protective cover, and the inner wall of the cavity is a conical wall. The protective cover has a removable seal inside via an elastic rubber column. The cover is connected. The protrusions block the gap between the protective cover and the nozzle, preventing fine dust from entering the handle. Prevents intrusion into the The wide-mouthed cavity has an inner wall that can guide water droplets that have adhered to the area around the nozzle. The collected water droplets run down the inner wall of the cavity and are discharged outside the device. Preferably, the sealing cover is provided with a sealing post that extends into the cavity and abuts against the spray nozzle. The contact surface between the sealing post and the spray nozzle is a second annular surface. The spray nozzle is blocked from the outside air by the installed sealing pillar, preventing fine dust from entering the handle. This prevents the particles from penetrating the nozzle and adhering to the area around the nozzle, thereby preventing the formation of a common source of contamination. Preferably, the cavity forms a first annular surface where the projection and the spray nozzle abut, and the first annular surface and Both of the two annular surfaces are parallel to the end surface where the spray nozzles are located. The contact surface between the protrusion and the nozzle is an annular surface parallel to the end face where the nozzle is located, Avoid direct contact and pressure on the spray nozzle, preventing deformation of the spray structure due to stress concentration when contact occurs. This prevents the spray structure from being affected and reduces its impact on its lifespan. Preferably, a front cover lid and a rear cover lid are fitted to both axial ends of the outer cover and the inner cover, respectively. The outer surface of the first annular tank is connected to the end of the second annular tank, and a user-defined A convenient plug for secondary water injection is detachably connected, allowing the front cover and rear cover to be The lid secures the outer and inner covers together. The plug allows the user to Secondary water injection becomes easier and leakage of stored water is prevented. Compared with the prior art, the beneficial effects of this utility model are as follows: The spray nozzle is concentrated in the hand grip and uses an angled nozzle, allowing you to control the trajectory of the water mist. The water mist is sprayed diagonally towards the user in a direction that intersects with the flow of the water. The water mist and the fan's main airflow merge and fuse together, creating a synergistic effect between the water mist and the fan's airflow. The tiny droplets are directional and reach the user's skin surface with the help of airflow. It ensures the efficiency and effectiveness of evaporation of minute water droplets, and improves the cooling efficiency and effectiveness of the device. [Brief explanation of the drawings]

[0004] [Figure 1] 1 is a schematic diagram of the overall structure of the portable handheld atomizing fan of this utility model; [Figure 2] Schematic diagram of the structure of the present utility model from another angle; [Figure 3] 1 is a schematic diagram of the structure of the sealing cover in the disassembled state of the present utility model; [Figure 4] 1 is a schematic cross-sectional view of the present invention; [Figure 5] Schematic diagram of the deployment structure of the water storage section in this utility model; [Figure 6] 5 is a schematic diagram of the structure from another angle; [Figure 7] This is a structural schematic diagram of the utility model with the rear cover hidden; [Figure 8]1 is a schematic diagram of the head structure of the present invention; [Figure 9] FIG. 9 is a schematic diagram of the cross-sectional structure of FIG.

[0005] Number of symbols: 1, head part; 2, hand grip part; 3, fan module; 11, first Water tank; 12, second water tank; 13, first annular tank; 131, water inlet; 14, second annular Shaped tank; 15, first extension tank; 16, second extension tank; 161, fitting groove; 162, side Side opening; 17, atomization plate; 171, spray nozzle; 18, plug; 19, front cover; 20, rear cover Bar; 21, front protective cover; 211, protrusion; 212, cavity; 213, first annular surface; 22 , rear protective cover; 23, sealing cover; 231, sealing pillar; 232, second annular surface; 24, sea Luling; 31, inner cover; 32, outer cover; 100, water storage section; 200, atomization section. [Mode for carrying out the utility model]

[0006] The present invention will be further described with reference to the drawings and specific examples. As shown in Figures 1 to 9, this embodiment discloses a portable handheld spray fan. The head section 1 includes a handle section 2, and a fan module 3 capable of blowing air in the axial direction is disposed inside the head section 1. The fan module 3 includes an impeller, a rotating shaft, a partition plate, etc., which are similar to the existing technical structure. It generates a forward-flowing airflow that faces the direction of the user's use. The structure of the fan module 3 is composed of an inner cover 31 that covers the outside of the fan module 3 and forms an air flow path. The outer cover 32 is fitted to the outside of the bar 31. The outer cover 32 and the inner cover 31 are arranged in the axial direction. A front cover 19 and a rear cover 20 are fitted to the ends, respectively, to seal the internal structure. A water reservoir 100 is provided inside the handle 2 to store water. The near end is provided with an atomizing section 200, which is in communication with the water reservoir 100; The atomizing unit 200 is provided with a spray nozzle 171 that faces the direction of use by the user. 1 is the internal hole structure of the atomization plate 17, and the water mist is sprayed obliquely to the axial area of ​​the fan airflow. The direction of the water mist is at a certain angle to the direction of the airflow, and the water mist Promotes mixing of airflow. The outer cover 32 is a cover for the first water tank 11 and the second water tank 12 which are combined facing each other along the axis. The first water tank 11 includes a first annular tank 13 fitted to the outside of the inner cover 31. and a first extension tank 15 extending from the first annular tank 13. Second water tank 12 is a second annular tank 14 fitted to the outside of the inner cover 31, and The first annular tank 13 and the second annular tank 14 are connected to each other via a second extension tank 16. 14 has an annular groove structure with opposing openings, and the combination of the two forms an annular structure. The first extension tank 15 and the second extension tank 16 are combined to form a water storage section 100. Together they form the atomization section 200. The first annular tank 13 is provided with a water inlet 131, and the water inlet 131 is provided on the outer surface of the first annular tank 13. The end remote from the second annular tank 14 is provided with a removable plug 18. One end of a plug 18 is inserted between the outer cover 20 and the rear end surface of the first annular tank 13. The plug 18 is made of an elastic material, and one end of the plug 18 is in contact with the rear end surface of the first annular tank 13. The other end is inserted into the outside of the head portion 1 and fitted into the water inlet 131 to seal it. This allows for secondary water injection. An atomizing piece 17 is attached to the end of the second extension tank 16 away from the first extension tank 15. The cross-sectional shape of the fitting groove 161 is the same as the outer shape of the atomizing plate 17. The inner wall of the handle 2 is inclined in the axial direction. The slits are arranged diagonally outward along the line from the side closest to the head 1 to the side farther from the head 1. This allows the water mist to be ejected obliquely towards the shaft center of the fan, The direction is transverse to the airflow direction. The second extension tank 16 is provided with a side opening 162 communicating with the mounting recess 161. This makes it easy to attach and detach the atomizing plate 17. The handle 2 has a front protective cover 21 on the side that faces the user when in use and a rear protective cover on the rear side. The front protective cover 21 and the rear protective cover 22 each have a bottom shell. The handle 2 has a semicircular arc structure that houses a circuit board, battery, control switch, and charging inlet. It incorporates functional components similar to those in conventional technology structures, such as an interface. The front cover 21 has a protrusion 211 at the end corresponding to the spray nozzle 171. The nozzle 171 is provided with a through cavity 212, which forms a sealed connecting passage between the nozzle 171 and the outside environment. The inner wall of the cavity 212 is a conical wall, and the cavity 212 has a flared structure that widens outward. In order to ensure sealing, the atomizing plate 17 and the fitting groove 161 are in contact with each other at the end faces thereof, and and between the end faces where the protrusion 211 and the axial inner wall of the fitting groove 161 come into contact, seals are provided. A ring 24 is provided. Inside the front protective cover 21, a seal cover 2 is detachably connected via an elastic rubber column member. 3, and the seal cover 23 is provided with a seal post 231 extending into the cavity 212. The seal post 231 is press-fitted with the end face of the spray nozzle 171 to form a seal. The contact surface between the seal post 231 and the spray nozzle 171 is the second annular surface 232. Due to this structure, the fitting surface between the protrusion 211 and the spray nozzle 171 forms a first annular surface 213. The circumferential surface 213 and the second annular surface 232 are both parallel to the end surface where the spray nozzle 171 is located. This ensures sealing reliability and applies a uniform force to the atomizing plate 17. When the user needs cooling, he activates the control switch of the control fan module 3. The impeller in the fan module 3 creates an airflow that flows toward the user. If more cooling is required, the spray plate 17 controls the flow of the spray. The atomizing plate 17 sprays the water in the water reservoir 100 through the spray nozzle 171. The water mist is sprayed diagonally across the airflow direction towards the user. After the water mist and airflow merge, the kinetic energy of the airflow propels the water mist onto the user's skin surface. It is sprayed onto the surface, improving cooling efficiency through physical evaporation.

Claims

1. It includes a head portion and a handle portion, The head is equipped with a fan module that blows air in the axial direction. The airflow direction of the fan matches the direction of use by the user. The head part consists of an inner cover that covers the fan module and forms an airway, and a cover that covers the outside of the inner cover. and an outer cover, The outer cover has a built-in water storage section, and the atomizing section is located on the inside of the handle at the end closest to the head. The atomization section is connected to the water storage section, The atomizing section is provided with a spray nozzle that is in the same direction as the airflow direction, and the spray nozzle directs the water mist toward the axis of the fan. The water mist is sprayed obliquely, and the direction of the water mist crosses the direction of the air flow. Portable handheld spray fan.

2. 2. The portable handheld nebulizing fan of claim 1, The outer cover includes a first water tank and a second water tank arranged opposite each other along an axis, The first water tank includes a first annular tank covered on the outside of the inner cover and a water tank communicating with the first annular tank. and a first extension tank, The second water tank is a second annular tank fitted to the outside of the inner cover and a second annular tank connected to the second annular tank. and a second extension tank, The first and second annular tanks have a double structure and are annular tanks with openings facing each other. With a groove, When the first annular tank and the second annular tank are assembled, the inner annular groove forms a water storage portion; When the first extension tank and the second extension tank are assembled, the atomization section is formed. Portable handheld spray fan.

3. 3. The portable handheld atomizing fan of claim 2, The second extension tank has a mating groove for attaching a spray plate at the end remote from the first extension tank. picture, The spray hole of the spray plate is the spray port, and the cross-sectional shape of the fitting groove is the same as the shape of the spray plate. The inner wall of the handle is inclined in the axial direction, and the outer wall extends away from the head along the axis of the handle. are arranged diagonally, Portable handheld spray fan.

4. 4. The portable handheld nebulizing fan of claim 3, The second extension tank has a side opening communicating with the fitting groove. Portable handheld spray fan.

5. 5. The portable handheld atomizing fan of claim 4, A seal ring is provided between the end faces where the spray plate and the axial inner wall of the fitting groove contact. Portable handheld spray fan.

6. The portable handheld spray fan according to any one of claims 1 to 5, The handle is provided with a protective cover at the position facing the side used by the user. The protective cover is located at a position facing the spray nozzle in the circumferential direction. Portable handheld spray fan.

7. 7. The portable handheld nebulizing fan of claim 6, The protective cover has a protrusion at the end opposite the spray nozzle, and the protrusion has a hollow space penetrating through it. There is a cave, The protrusion forms a sealed connection path between the spray nozzle and the protective cover, and the inner wall of the cavity is composed of a conical wall. The protective cover has a hollow structure that expands outward, and the inside of the protective cover is filled with elastic rubber pillars. A removable sealing cover is attached. Portable handheld spray fan.

8. 8. The portable handheld nebulizing fan of claim 7, The sealing cover is provided with a sealing post that extends into the cavity and abuts against the spray nozzle. The contact surface of the spray nozzle is a second annular surface. Portable handheld spray fan.

9. 9. The portable handheld nebulizing fan of claim 8, The surface where the protrusion of the cavity abuts against the spray nozzle is the first annular surface, and the first annular surface and the second annular surface are The offset is parallel to the end face where the spray nozzle is located. Portable handheld spray fan.

10. 3. The portable handheld atomizing fan of claim 2, A front cover and a rear cover are fitted to both axial ends of the outer cover and the inner cover, respectively, to form a first annular At the end of the outer surface of the tank away from the second annular tank, there is a convenient secondary water supply for the user. A removable plug is attached Portable handheld spray fan.

Images