A refrigeration small fan capable of increasing spray range

Abstract

The utility model discloses a refrigeration small fan that can increase the spray range, which comprises a handle front shell and a handle rear shell, a water supply mechanism is arranged on the handle front shell, an atomizing sheet one is arranged on the handle front shell, a water tank body is arranged on the top of the handle front shell and the handle rear shell, an atomizing sheet two and a fan blade are arranged on the water tank body, wherein, when the atomizing sheet two is started, the wind blown by the fan blade blows the water mist prepared by the atomizing sheet two to a larger range. When the temperature of the environment is moderate, a low gear mode is adopted to meet the basic cooling demand, and there will be no excessive water mist covering the face of the user to ensure the use comfort of the user. This mode has lower power consumption and can prolong the endurance time of the small fan. When the environment is high temperature, more water mist is prepared by the atomizing sheet two and diffused to a larger range under the push of the wind force, thereby significantly enhancing the cooling effect. Moreover, since the evaporation speed of the water mist is faster, there will be no excessive water mist covering the face of the user.

Description

Technical Field

[0001] This utility model relates to the field of small household appliances, and in particular to a small cooling fan that can increase the spray range. Background Technology

[0002] Cooling fans are also a type of atomizing fans. As an upgraded product of traditional fans, atomizing fans have become a new favorite in the market because they combine the dual cooling mechanisms of "water mist evaporation and heat absorption" and "wind diffusion". However, atomizing fans currently face the following technical bottlenecks: Since most atomizing fans use only a single atomizing plate and the installation position of the atomizing unit is fixed, the range of water mist diffusion is fixed. In order to avoid excessive water mist covering the user's face and causing discomfort, the atomizing plate is often placed at the handle. However, in high-temperature environments, the cooling effect of such atomizing fans is generally poor. If a high-power atomizing plate is used directly, although the amount of atomization can be increased, the battery life will be greatly shortened, making it difficult to achieve a dynamic balance between "energy efficiency and performance". Utility Model Content

[0003] To overcome the shortcomings of the aforementioned background technology, this utility model provides a small cooling fan that can increase the spray range. It adopts a dual atomizing plate design, which can select one atomizing plate to work according to needs, thereby increasing the spray range, balancing energy efficiency and strong cooling, and ensuring user comfort.

[0004] The technical solution of this utility model is: a small cooling fan that can increase the spray range, characterized in that it includes: Front and rear shells of the handle; A water supply mechanism for guiding water flow is disposed on the front housing of the handle; Atomizing plate one is disposed on the front shell of the handle; Water tank body is disposed on the top of the front shell and the rear shell of the handle; Atomizing plate 2 and fan blades are disposed in the water tank body; When the second atomizing plate is activated, the wind blown out by the fan blades will spread the water mist prepared by the second atomizing plate to a wider area.

[0005] In one embodiment, the upper part of the front shell of the handle is provided with a mist outlet, and a mounting bracket is disposed on the front shell of the handle. The mounting bracket is provided with an atomizing bracket and a water supply mechanism for guiding water flow. The atomizing plate is disposed on the atomizing bracket and coaxially aligned with the mist outlet. An air duct is installed inside the water tank, and the air duct has several air outlets. An atomizing bracket is installed inside the air duct, and an atomizing plate is installed on the atomizing bracket.

[0006] In one embodiment, the water supply mechanism includes a water pump mounted on a mounting bracket, with its inlet connected to an input pipe and its outlet connected to the input port of a two-position three-way solenoid valve. The input pipe is connected to a drain pipe on the water tank. One output port of the two-position three-way solenoid valve is connected to an output pipe. The output pipe passes through the water tank and the air duct in sequence, and its other end is connected to the water inlet channel of the second atomizing bracket. The other output port of the two-position three-way solenoid valve is connected to the water inlet channel of the first atomizing bracket.

[0007] In one embodiment, the side of the water tank is connected to the rear cover of the water tank, and a removable water filling plug is snapped onto the top.

[0008] In one embodiment, a protective plate for pressing the atomizing plate two is also included. The protective plate is installed on the outer wall of the air duct by a snap fastener. A plurality of limiting rods and a top plate are provided in the air duct. The limiting rods are used to limit the atomizing bracket two. The top plate is tightly fitted with the atomizing bracket two.

[0009] In one embodiment, the rear cover of the water tank has several air inlets.

[0010] In one embodiment, a motor is also included, which is located on the side of the air duct facing the rear cover of the water tank, and the output shaft of the motor is connected to fan blades.

[0011] In one embodiment, the air duct has a first chamber, the water tank has a second chamber, and the output pipe passes through the first chamber and the second chamber.

[0012] In one embodiment, a lithium battery is also included, which is disposed in the receiving cavity formed by the front shell and the rear shell of the handle. A PCB electronic control board is provided on the upper part of the rear shell of the handle. The PCB electronic control board is provided with a charging interface, a knob and a button. The PCB electronic control board is connected to the lithium battery, a water pump, a two-position three-way solenoid valve, atomizing plate one and atomizing plate two respectively through wires.

[0013] In one embodiment, the lithium battery is tilted within the receiving cavity, and the lithium battery is located below the PCB control board.

[0014] The beneficial effects of this utility model are: By adopting a dual-atomizing plate design, one atomizing plate can be selected to operate according to needs, achieving dual-speed adjustment and balancing energy efficiency and strong cooling. When the ambient temperature is moderate, the low-speed mode is used, activating atomizing plate one in conjunction with the fan blades to meet basic cooling requirements without excessive water mist covering the user's face, ensuring user comfort. This mode also consumes less power, extending the battery life of the small fan. In high-temperature environments, the water path is switched, directing water flow to atomizing plate two, which has greater power and is located in the center of the air duct. Atomizing plate two generates more water mist, which is then diffused over a wider area by the wind, significantly enhancing the cooling effect. Furthermore, because the water mist evaporates faster, there is no excessive water mist covering the user's face. Attached Figure Description

[0015] Figure 1 A perspective view of a small fan provided in an embodiment of this application.

[0016] Figure 2 An explosion diagram of a small fan provided in an embodiment of this application.

[0017] Figure 3 A cross-sectional view of a small fan provided in an embodiment of this application.

[0018] Figure 4 This is a cross-sectional view of a small fan provided in an embodiment of this application.

[0019] Figure 5 Another cross-sectional view of the small fan provided in an embodiment of this application.

[0020] Figure 6 A schematic diagram showing the connection between the water tank and the water supply mechanism of the small fan provided in this application embodiment.

[0021] Figure 7 This is a schematic diagram of the water tank of the small fan provided in an embodiment of this application.

[0022] Figure 8 This is a partial structural diagram of the air duct of a small fan provided in an embodiment of this application.

[0023] Figure 9 This is a partial structural diagram of a small fan provided in an embodiment of this application.

[0024] The diagram is labeled as follows: 1-Handle front shell, 101-Mist outlet, 2-Handle rear shell, 31-Mounting bracket, 32-Atomizer bracket one, 33-Atomizer plate one, 34-Atomizer bracket two, 35-Atomizer plate two, 41-Water pump, 42-Two-position three-way solenoid valve, 43-Input pipe, 44-Output pipe, 51-Water tank body, 52-Water tank rear cover, 53-Water filling plug, 54-Drain pipe, 61-Air duct, 62-Limit rod, 63-Top plate, 64-Protective plate, 71-Air outlet, 72-Air inlet, 81-Motor, 82-Fan blade, 91-First chamber, 92-Second chamber, 121-Lithium battery, 122-PCB control board, 123-Charging interface, 124-Knob, 125-Button. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] A small cooling fan that can increase the spray range, such as Figures 1 to 9 As shown, the device includes a front handle shell 1 and a rear handle shell 2 connected by snap-fit, forming a receiving chamber between them. The upper part of the front handle shell 1 has a mist outlet 101. The mounting bracket 31 of the front handle shell 1 integrates an atomizing bracket 32. The atomizing plate 33 mounted on the atomizing bracket 32 ​​is coaxially aligned with the mist outlet 101. The atomizing plate 33 is used to generate water mist. The top of the front handle shell 1 and the rear handle shell 2 are jointly provided with a water tank 51. The water tank 51 is provided with an air duct 61. The atomizing bracket 34, which is equipped with an atomizing plate 35, is installed on the air duct 61. The mounting bracket 31 is also provided with a water supply mechanism, which is used to supply water to the atomizing plate 33 or the atomizing bracket 34.

[0027] The water supply mechanism includes a water pump 41, which is bolted to a mounting bracket 31. The upper end of the water pump 41 is the outlet, and the lower end is the inlet. The water pump 41 draws water from the water tank 51 and delivers it to either the first atomizing bracket 32 ​​or the second atomizing bracket 34. A two-position three-way solenoid valve 42 is mounted on the water pump 41. The two-position three-way solenoid valve 42 includes one inlet and two outlets. The inlet of the two-position three-way solenoid valve 42 is connected to the outlet of the water pump 41. Used for guiding water flow, the water pump 41 has an inlet connected to an input pipe 43 at its lower end. The water tank 51 is equipped with a drain pipe 54, which is connected to the other end of the input pipe 43. One of the output ports of the two-position three-way solenoid valve 42 is connected to an output pipe 44. The output pipe 44 passes through the water tank 51 and the air duct 61 in sequence, and the other end is connected to the water inlet channel of the atomizing bracket 2 34. The other output port of the two-position three-way solenoid valve 42 is connected to the water inlet channel of the atomizing bracket 1 32.

[0028] A small cooling fan that can increase the spray range also includes a water tank back cover 52, which is located on one side of the water tank body 51, and a removable water filling plug 53 is snapped onto the upper part of the water tank body 51.

[0029] A small cooling fan that can increase the spray range also includes a protective plate 64 for pressing the atomizing plate 35. The protective plate 64 is installed on the outer wall of the air duct 61 by a snap fastener. Several limiting rods 62 and a top plate 63 are provided in the air duct 61. The limiting rods 62 are used to limit the atomizing bracket 34. The top plate 63 is tightly fitted with the atomizing bracket 34.

[0030] The rear cover 52 of the water tank has several air inlets 72, and the air duct 61 has several air outlets 71.

[0031] A small cooling fan that can increase the spray range also includes a motor 81. The motor 81 is located on the side of the air duct 61 facing the rear cover 52 of the water tank. The output shaft of the motor 81 is connected to the fan blades 82. The motor 81 is used to drive the fan blades 82 to rotate.

[0032] The air duct 61 has a first chamber 91, the water tank 51 has a second chamber 92, and the output pipe 44 passes through the first chamber 91 and the second chamber 92.

[0033] A small cooling fan that can increase the spray range also includes a lithium battery 121. The lithium battery 121 is housed in a cavity formed by the front shell 1 and the rear shell 2 of the handle. A PCB control board 122 is provided on the upper part of the rear shell 2 of the handle, located above the lithium battery 121. The PCB control board 122 is provided with a charging interface 123, a knob 124, and a button 125. The PCB control board 122 is connected to the lithium battery 121, a water pump 41, a two-position three-way solenoid valve 42, an atomizing plate 33, and an atomizing plate 35 via wires. The lithium battery 121 is used to power the PCB control board 122. The button 125 is provided with three buttons: a power switch, a low-speed switch, and a high-speed switch.

[0034] The power of atomizing plate 1 33 is 1.5W, and the atomization volume is 36mL / h; the power of atomizing plate 2 35 is 2W, and the atomization volume is 48mL / h. The water pump 41 is a precision gear pump, and its flow range can meet the needs of 30-50mL / h. The button 125 has three buttons: the top button is the power switch, the middle button is the low-speed switch, and the bottom button is the high-speed switch.

[0035] Working principle: When using this small cooling fan normally, the user first presses the power switch, then presses the low-speed switch. At this time, the PCB control board 122 supplies power to the motor 81, water pump 41, and atomizing plate 33. The water pump 41 sends water from the water tank 51 to the input port of the two-position three-way solenoid valve 42 through the input pipe 43. Since the two-position three-way solenoid valve 42 is not energized, the output port connected to the output pipe 44 of the two-position three-way solenoid valve 42 is closed, and the output port connected to the atomizing bracket 32 ​​of the two-position three-way solenoid valve 42 is opened, allowing water to flow into the atomizing plate. Inside the atomizing bracket 32, water flows through the water outlet channel of the atomizing bracket 32 ​​to the atomizing plate 33. The atomizing plate 33 breaks the water into tiny droplets and sprays them out through the mist outlet 101 to the outside of the handle front shell 1. The motor 81 drives the fan blade 82 to rotate at high speed, causing air to continuously flow into the air duct 61 through the air inlet 72 of the water tank rear cover 52 and out through the air outlet 71 of the air duct 61, thus producing a blowing effect. The wind is used to disperse the water mist, and the water mist absorbs the heat of the air and evaporates to cool the surrounding environment. The wind blown out by the fan blade 82 accelerates the cooling of the skin. The evaporation of sweat on the surface achieves a cooling effect for the user without excessive water mist covering the user's face, ensuring user comfort. By employing a lower-power atomizing plate 33, basic cooling needs are met, extending the fan's runtime. When the user feels the ambient temperature is too high, they can press the high-level switch. The PCB control board 122 then supplies power to the motor 81, water pump 41, two-position three-way solenoid valve 42, and atomizing plate 35. At this time, the output port connected to the output pipe 44 of the two-position three-way solenoid valve 42 opens. The output port of the two-position three-way solenoid valve 42, which is connected to the atomizing bracket 32, is closed, allowing water to flow into the atomizing bracket 34 through the output pipe 44. The water then flows through the water outlet channel of the atomizing bracket 34 to the atomizing plate 35. The atomizing plate 35 atomizes the water in the atomizing bracket 34 into more water mist. Because the atomizing plate 35 is located in the center of the air duct 61, the airflow can blow more water mist over a wider area, significantly enhancing the cooling effect. Furthermore, because the water mist evaporates faster, there will be no excessive water mist covering the user's face. The user can also rotate the knob 124 to increase the power of the motor 81, thereby increasing the airflow intensity and further expanding the water mist coverage area for a stronger cooling effect. After the small fan is finished using, the user can press the power switch again, and the PCB control board 122 will stop supplying power.

[0036] When the water level in the water tank 51 is low, the user can pull out the water filling plug 53 from the water tank 51 and then fill the water tank 51 with water. When the lithium battery 121 is low on power, the user can directly insert the charging cable into the charging interface 123 of the PCB control board 122 to charge the lithium battery 121.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A small cooling fan capable of increasing the spray range, characterized in that, include: Front and rear shells of the handle; A water supply mechanism for guiding water flow is disposed on the front housing of the handle; Atomizing plate one is disposed on the front shell of the handle; Water tank body is disposed on the top of the front shell and the rear shell of the handle; Atomizing plate 2 and fan blades are disposed in the water tank body; When the second atomizing plate is activated, the wind blown out by the fan blades will spread the water mist prepared by the second atomizing plate to a wider area.

2. A small cooling fan that can increase the spray range as described in claim 1, characterized in that: The upper part of the front shell of the handle is provided with a mist outlet. The mounting bracket is set on the front shell of the handle. The mounting bracket is provided with an atomizing bracket and a water supply mechanism for guiding water flow. The atomizing plate is set on the atomizing bracket and coaxially aligned with the mist outlet. An air duct is installed inside the water tank, and the air duct has several air outlets. An atomizing bracket is installed inside the air duct, and an atomizing plate is installed on the atomizing bracket.

3. A small cooling fan with an increased spray range as described in claim 2, characterized in that: The water supply mechanism includes a water pump mounted on a mounting bracket. Its inlet is connected to an input pipe, and its outlet is connected to the input port of a two-position three-way solenoid valve. The input pipe is connected to a drain pipe on the water tank. One output port of the two-position three-way solenoid valve is connected to an output pipe. The output pipe passes through the water tank and the air duct in sequence, and its other end is connected to the water inlet channel of the second atomizing bracket. The other output port of the two-position three-way solenoid valve is connected to the water inlet channel of the first atomizing bracket.

4. A small cooling fan that can increase the spray range as described in claim 1, characterized in that: The side of the water tank is connected to the rear cover of the water tank, and a removable water filling plug is snapped onto the top.

5. A small cooling fan capable of increasing the spray range as described in claim 2, characterized in that: It also includes a protective plate for pressing the second atomizing plate. The protective plate is installed on the outer wall of the air duct by a snap fastener. Several limiting rods and a top plate are provided in the air duct. The limiting rods are used to limit the second atomizing bracket. The top plate is tightly fitted with the second atomizing bracket.

6. A small cooling fan capable of increasing the spray range as described in claim 4, characterized in that: The rear cover of the water tank has several air inlets.

7. A small cooling fan with an increased spray range as described in claim 4, characterized in that: It also includes a motor, which is located on the side of the air duct facing the rear cover of the water tank, and the output shaft of the motor is connected to fan blades.

8. A small cooling fan with an increased spray range as described in claim 3, characterized in that: The air duct has a first chamber, the water tank has a second chamber, and the output pipe passes through the first chamber and the second chamber.

9. A small cooling fan capable of increasing the spray range as described in any one of claims 1-8, characterized in that: It also includes a lithium battery, which is disposed in the cavity formed by the front shell and the rear shell of the handle. The upper part of the rear shell of the handle is provided with a PCB electronic control board, which is provided with a charging interface, a knob and a button. The PCB electronic control board is connected to the lithium battery, the water pump, the two-position three-way solenoid valve, the atomizing plate one and the atomizing plate two respectively through wires.

10. A small cooling fan capable of increasing the spray range as described in claim 9, characterized in that: The lithium battery is tilted and disposed within the receiving cavity, and the lithium battery is located below the PCB electronic control board.

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