A domestic cool and warm type electric fan

Abstract

This invention belongs to the field of electric fan technology, specifically relating to a household hot and cold electric fan, including a fan body and a humidification mechanism. The humidification mechanism includes a water storage tank, a rubber stopper, a pressure plate, a pressure rod, a rubber water pipe, a pull rod, a heating tube, and a membrane. The inner wall of the water storage tank is slidably sealed with a rubber stopper. An outlet is provided at the bottom of the water storage tank. A rubber water pipe is connected to the lower end of the water storage tank near the fan head, and the other side of the rubber water pipe is connected to the upper opening of the heating tube. Through holes are provided within the wall of the heating tube, spaced apart. A membrane is fixedly connected to the outer surface of the heating tube. The lower opening of the heating tube is electrically connected to a control device via a wire. This invention solves the problem that electric fans have a limited function, and that when used for full heating in winter, the already dry air exacerbates the dryness of the air, making the user feel even drier, as the fan does not humidify the air and thus causing discomfort.

Description

Technical Field

[0001] This invention belongs to the field of electric fan technology, specifically relating to a household hot and cold electric fan. Background Technology

[0002] With the improvement of people's living standards, although air conditioners have become common in people's lives, household electric fans, as a type of household appliance that uses an electric motor to drive the fan blades to rotate in order to accelerate air circulation and cool down, are still widely used in homes, offices, shops, hospitals and hotels.

[0003] Currently, there are many types of electric fans on the market, including electric fans used to blow cool air in summer and electric heaters used to warm up in winter. However, most electric fans can only blow cool air, and most electric heaters can only warm up, so their functions are relatively limited. Furthermore, when using electric fans for heating in winter, the air is already dry, and the warm air blown out will make people feel even drier, as it cannot humidify the air, thus causing discomfort to the user.

[0004] In view of this, a household hot and cold electric fan is proposed to solve the above problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the present invention provides a household hot and cold electric fan, which mainly solves the problem that most electric fans can only be used to blow cool air, and most electric heaters can only be used to heat, which are relatively simple functions. In addition, when using electric fans to heat in winter, the air is already dry, and the warm air blown out will make people feel even drier, and cannot humidify the air, thus causing discomfort to the user.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides a household hot and cold electric fan, including a fan body and a humidification mechanism. The fan body includes a fan head, fan blades, a mesh cover, a column, and a control device. The column is fixedly connected to the fan head, the control device is provided inside the fan head, the fan head is fixedly connected to the mesh cover, and the fan blades are located inside the mesh cover.

[0008] The humidification mechanism includes a water storage tank, a rubber stopper, a pressure plate, a pressure rod, a rubber water pipe, a pull rod, a heating tube, and a membrane. The water storage tank is fixedly connected to the rear end of the fan head. A rubber stopper is slidably and sealingly connected to the inner wall of the water storage tank. A pressure plate is fixedly connected to the upper end face of the rubber stopper. A pressure rod is fixedly connected to the upper end face of the pressure plate. A water outlet is opened at the bottom end of the water storage tank. A rubber water pipe is connected to the lower end of the water storage tank near the fan head. The other side of the rubber water pipe is connected to the upper opening of the heating tube. The heating tube is located in front of the fan blades. The lower opening of the heating tube is closed. The heating tube is fixedly connected to the pull rod. The upper end face of the pull rod is fixedly connected to the inner wall of the mesh cover. Through holes are opened in the wall of the heating tube. The through holes are spaced apart on the heating tube. A membrane is fixedly connected to the outer surface of the heating tube. The lower opening of the heating tube is electrically connected to the control device through a wire.

[0009] Preferably, the fan body further includes a base, and the upper surface of the base is provided with a cold air switch and a hot air switch, which are electrically connected to the control device.

[0010] Preferably, the heating tube has an S-shaped structure.

[0011] Preferably, in addition to the pull rod, the heating tube is also fixedly connected to the inner wall of the mesh cover by four support rods, and the connection surface between the support rods and the heating tube is coated with a heat-insulating coating.

[0012] Preferably, the connection surface between the pull rod and the mesh cover is coated with a heat insulation layer.

[0013] Preferably, the membrane material is a hydrophobic membrane, such as a PTFE film.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. Compared with existing technologies, when heating is needed in winter, this invention generates heat by heating a heating element. At the same time, due to the evaporation effect, the water inside the heating element turns into water vapor, which seeps out of the heating element through a film covering its surface. When the fan is turned on, the fan blades push the air through the heated heating element. As the air is heated, it also carries away the water vapor, thus making the fan blow out warm and humid air. This solves the problem of limited functionality and the fact that when using a fan for heating in winter, the air is already dry, and the warm air blown out can make people feel even drier, as it cannot humidify the air and thus cause discomfort to the user.

[0016] 2. At the same time, since the heating tube has an S-shaped structure, it has a certain ability to absorb vibration. Furthermore, the heating tube is fixedly connected to the inner wall of the mesh cover through a pull rod and a support rod. Therefore, when the fan is working, it can effectively absorb the vibration caused by the fan's operation, thereby achieving a certain noise reduction effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 Schematic diagram of the cross-sectional structure at point AA;

[0019] Figure 3 This is a schematic cross-sectional view of the heating tube of the present invention.

[0020] In the diagram: 1. Column; 2. Fan head; 3. Net cover; 4. Fan blade; 5. Water storage tank; 6. Water outlet; 7. Rubber plug; 8. Pressure plate; 9. Pressure rod; 10. Rubber water pipe; 11. Pull rod; 12. Heating tube; 13. Through hole; 14. Membrane; 15. Base; 16. Cold air switch; 17. Hot air switch; 18. Support rod. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1 to 3 In this embodiment of the invention, a household hot and cold electric fan includes a fan body and a humidification mechanism. The fan body includes a fan head 2, fan blades 4, a mesh cover 3, a column 1, and a control device. The column 1 is fixedly connected to the fan head 2. The fan head 2 is provided with a control device. The fan head 2 is fixedly connected to the mesh cover 3. The fan blades 4 are located inside the mesh cover 3.

[0023] The humidification mechanism includes a water storage tank 5, a rubber stopper 7, a pressure plate 8, a pressure rod 9, a rubber water pipe 10, a pull rod 11, a heating element 12, and a membrane 14. The water storage tank 5 is fixedly connected to the rear end of the fan head 2. A rubber stopper 7 is slidably sealed to the inner wall of the water storage tank 5. A pressure plate 8 is fixedly connected to the upper end face of the rubber stopper 7. A pressure rod 9 is fixedly connected to the upper end face of the pressure plate 8. A water outlet 6 is opened at the bottom end of the water storage tank 5. A rubber water pipe 10 is connected to the lower end of the water storage tank 5 near the fan head 2. The other side of the water pipe 10 is connected to the upper opening of the heating pipe 12. The heating pipe 12 is located in front of the fan blade 4. The lower opening of the heating pipe 12 is closed. The heating pipe 12 is fixedly connected to the pull rod 11. The upper end face of the pull rod 11 is fixedly connected to the inner wall of the mesh cover 3. A through hole 13 is opened in the wall thickness of the heating pipe 12. The through holes 13 are distributed at intervals on the heating pipe 12. A membrane 14 is fixedly connected to the outer surface of the heating pipe 12. The lower opening of the heating pipe 12 is electrically connected to the control device through a wire.

[0024] When using an electric fan for heating in winter, first remove the pressure rod 9 and pressure plate 8, close the water outlet 6 at the bottom of the water tank 5, fill the water tank 5 with water, and then put the pressure rod 9 and pressure plate 8 back in, so that the water in the water tank 5 enters the heating tube 12 through the rubber water pipe 10. Then turn on the electric fan. As the fan blade 4 rotates, the heating tube 12 is powered on. The heating tube 12 has a resistance of 30 to 40 ohms and is coated with an insulating layer, which acts as a resistance wire, thereby generating heat and heating the air around the heating tube 12. At the same time, the water inside the heating tube 12 evaporates faster due to the increased temperature, and the water vapor seeps out through the membrane 14, thus making the air around the heating tube 12 humid. When the airflow driven by the fan blade 4 passes through the heating tube 12, it blows out warm and humid air, thus avoiding the problem of the air becoming drier when blowing warm air in winter.

[0025] Meanwhile, since the heating tube 12 is fixedly connected to the inner wall of the mesh cover 3 via the pull rod 11, and the heating tube 12 contains liquid, the heating tube 12 can absorb the vibration caused by the rotation of the fan blade 4, thereby reducing the noise caused by the electric fan when it is working.

[0026] In one embodiment of the present invention, the fan body further includes a base 15, and a cold air switch 16 and a hot air switch 17 are provided on the upper surface of the base 15. The cold air switch 16 and the hot air switch 17 are electrically connected to the control device.

[0027] In order for the electric fan to have the function of blowing both cold and hot air at the same time, a cold air switch 16 and a hot air switch 17 are set on the upper surface of the base 15. When the electric fan needs to blow cold air, turn the cold air switch 16 to start the fan blades 4 to rotate. When the electric fan needs to blow hot air, after filling the water tank 5 with water, turn the hot air switch 17 at the same time as turning the cold air switch 16 to turn on the heating element 12 to generate heat and blow out hot air. The temperature of the hot air can be adjusted by adjusting the setting of the hot air switch 17.

[0028] In one embodiment of the present invention, the heating tube 12 has an S-shaped structure.

[0029] By setting the heating tube 12 to an S-shaped structure, the amount of water that can be stored in the heating tube 12 can be increased, thereby extending the time for the electric fan to blow out humid hot air; and since the S-shaped heating tube 12 itself has a certain vibration absorption capacity, the noise generated by the electric fan during operation can be further reduced.

[0030] In one embodiment of the present invention, in addition to the pull rod 11, the heating tube 12 is also fixedly connected to the inner wall of the mesh cover 3 by four support rods 18, and the connection surface between the support rods 18 and the heating tube 12 is coated with a heat insulation coating.

[0031] The heating tube 12 is fixedly connected to the inner wall of the mesh cover 3 by four support rods 18, which improves the overall stability of the heating tube 12 and prevents the heating tube 12 from shaking when airflow passes through. The connection surface between the support rods 18 and the heating tube 12 is coated with a heat insulation coating, which can isolate the heat transfer on the heating tube 12. At the same time, the support rods 18 can also conduct the vibration part on the mesh cover 3 to the heating tube 12 while insulating the heat, further reducing the noise generated by the electric fan.

[0032] In one embodiment of the present invention, the connecting surface between the pull rod 11 and the mesh cover 3 is coated with a heat insulation layer.

[0033] To prevent heat from the heating tube 12 from being transferred to the mesh cover 3 and posing a safety hazard to the user, the connection surface between the pull rod 11 and the mesh cover 3 is coated with a heat insulation layer.

[0034] In one embodiment of the present invention, the membrane 14 is made of a hydrophobic membrane, such as a PTFE film.

[0035] Because the membrane 14 covering the surface of the heating tube 12 needs to be able to allow water vapor to permeate, the material of the membrane 14 is a hydrophobic membrane, such as a PTFE membrane. Furthermore, since the PTFE membrane has the characteristics of being breathable but not water-permeable, having a large air permeability, being flame-retardant, resistant to high temperatures, resistant to strong acids and alkalis, and non-toxic, it can have a long service life while ensuring safety.

[0036] Working principle: When using an electric fan for heating in winter, first remove the pressure rod 9 and pressure plate 8, close the water outlet 6 of the water tank 5, fill the water tank 5 with water, and then put the pressure rod 9 and pressure plate 8 back in, so that the water in the water tank 5 enters the heating tube 12 through the rubber water pipe 10. When the electric fan is turned on, the fan blades 4 rotate, and the heating tube 12 is energized, acting as a resistance wire, thereby generating heat and heating the air around the heating tube 12. At the same time, the water in the heating tube 12 evaporates faster due to the increased temperature, and the water vapor seeps out through the membrane 14, thus making the air around the heating tube 12 humid. When the airflow driven by the fan blades 4 passes through the heating tube 12, it blows out warm and humid air, thus avoiding the problem of the air becoming drier when blowing warm air in winter.

[0037] Meanwhile, since the heating tube 12 is fixedly connected to the inner wall of the mesh cover 3 by the pull rod 11, and the heating tube 12 contains liquid, the heating tube 12 can absorb the vibration caused by the rotation of the fan blade 4, thereby reducing the noise caused by the electric fan when it is working.

[0038] In order for the electric fan to have the function of blowing both cold and hot air at the same time, a cold air switch 16 and a hot air switch 17 are provided on the upper surface of the base 15. When the electric fan needs to blow cold air, turn the cold air switch 16 to start the fan blades 4 to rotate. When the electric fan needs to blow hot air, after filling the water tank 5 with water, turn the hot air switch 17 at the same time as turning the cold air switch 16 to turn on the heating element 12 to generate heat and blow out hot air. The temperature of the hot air can be adjusted by adjusting the setting of the hot air switch 17.

[0039] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not exist, the above embodiments only illustrate several implementation methods of the present invention. The descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be determined by the appended claims.

Claims

1. A household electric fan for both heating and cooling, comprising a fan body and a humidifying mechanism, characterized in that: The fan body includes a fan head (2), fan blades (4), a mesh cover (3), a column (1), and a control device. The column (1) is fixedly connected to the fan head (2), the fan head (2) is equipped with a control device, the fan head (2) is fixedly connected to the mesh cover (3), and the fan blades (4) are located inside the mesh cover (3). The humidification mechanism includes a water storage tank (5), a rubber stopper (7), a pressure plate (8), a pressure rod (9), a rubber water pipe (10), a pull rod (11), a heating tube (12), and a membrane (14); the water storage tank (5) is fixedly connected to the rear end of the fan head (2), the inner wall of the water storage tank (5) is slidably sealed with a rubber stopper (7), the upper end face of the rubber stopper (7) is fixedly connected with a pressure plate (8), the upper end face of the pressure plate (8) is fixedly connected with a pressure rod (9), the bottom end of the water storage tank (5) is provided with a water outlet (6), the lower end of the water storage tank (5) is connected to a rubber water pipe (10) near the fan head (2), the rubber water pipe (10) The other side is connected to the upper opening of the heating tube (12). The heating tube (12) is located in front of the fan blade (4). The heating tube (12) has an S-shaped structure. The lower opening of the heating tube (12) is closed. The heating tube (12) is fixedly connected to the pull rod (11). The upper end face of the pull rod (11) is fixedly connected to the inner wall of the mesh cover (3). The heating tube (12) has through holes (13) in its wall thickness. The through holes (13) are distributed at intervals on the heating tube (12). The outer wall surface of the heating tube (12) is fixedly connected to a membrane (14). The lower opening of the heating tube (12) is electrically connected to the control device through a wire.

2. A household hot and cold electric fan according to claim 1, characterized in that: The fan body also includes a base (15), on the upper surface of which are provided a cold air switch (16) and a hot air switch (17), which are electrically connected to the control device.

3. A household hot and cold electric fan according to claim 1, characterized in that: In addition to the pull rod (11), the heating tube is also fixedly connected to the inner wall of the mesh cover (3) by four support rods (18), and the connection surface between the support rods (18) and the heating tube (12) is coated with a heat insulation coating.

4. A household hot and cold electric fan according to claim 1, characterized in that: The connection surface between the pull rod (11) and the mesh cover (3) is coated with a heat insulation layer.

5. A household hot and cold electric fan according to claim 1, characterized in that: The membrane (14) material is a hydrophobic membrane (14), such as a PTFE film.

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