Humidifier with noise reducing drain valve

Abstract

This invention discloses a humidifier with a noise-reducing drain valve, comprising a water tank, a water tank assembly, and a drain valve. The water tank assembly includes a base and an atomizing tank mounted on the base. The water tank and the atomizing tank are connected via a drain hole. The drain valve controls the opening or closing of the drain hole. The drain valve includes a buffer chamber, a push rod, and an electromagnet. The buffer chamber is located within the atomizing tank and below the drain hole; the buffer chamber has an opening to communicate with the atomizing tank, allowing water from the atomizing tank to enter the buffer chamber. The push rod is slidably mounted within the buffer chamber. The electromagnet drives the push rod to slide up and down via electromagnetic force to open or close the drain hole. In this structure, when the push rod moves upward, it pushes the water in the buffer chamber out. The water in the buffer chamber hinders the movement of the push rod, thereby reducing the impact and noise generated by the push rod.

Description

Technical Field

[0001] This invention relates to the field of humidifiers, and in particular provides a humidifier with a noise-reducing drain valve. Background Technology

[0002] Most humidifiers on the market use a solenoid valve to push and pull the water tank's top rod to control the filling of water into the atomizing chamber. This method requires a sealed intermediate part to connect the solenoid valve's stem and the water tank's top rod, allowing the solenoid valve to lift the top rod while preventing water from leaking into the solenoid valve. This intermediate part is usually made of soft rubber to follow the reciprocating motion of the top rod. Prolonged reciprocating motion can easily damage the soft rubber, posing a risk of water leakage to the solenoid valve.

[0003] Another method involves installing an electromagnet outside the atomizing tank. When the electromagnet is energized, it generates a magnetic field that penetrates the atomizing tank, lifting the top rod through the repulsive force of the magnet. The advantage of this method is that the electromagnet and the water tank top rod are separate, eliminating the risk of leakage. However, this method involves instantaneous actuation (because the magnetic field is generated instantaneously), resulting in a relatively large impact and thus noise. Summary of the Invention

[0004] To address the noise issue caused by the large impact of the electromagnet-driven push rod, this invention provides a humidifier with a noise-reducing drain valve.

[0005] A humidifier with a noise-reducing drain valve includes a water tank, a water tank assembly, and a drain valve. The water tank assembly includes a base and an atomizing groove disposed on the base. The water tank is positioned above the atomizing groove, and its bottom is housed within the atomizing groove. The water tank and the atomizing groove are separated by a bottom plate of the water tank. A drain hole is provided on the bottom plate of the water tank, and the drain valve controls the opening or closing of the drain hole. The drain valve includes a buffer chamber, a push rod, and an electromagnet. The buffer chamber is disposed within the atomizing groove and located below the drain hole. The buffer chamber has an opening to communicate with the atomizing groove, allowing the... Water in the atomizing tank can enter the buffer chamber; the push rod includes a piston part, a valve head, and a rod body; the piston part is located at the bottom end of the rod body and the outer diameter of the piston part is larger than the outer diameter of the rod body, and the outer diameter of the piston part is smaller than or equal to the inner diameter of the buffer chamber; the valve head is located at the top end of the rod body and is used to open or close the drain hole; the push rod is slidably disposed in the buffer chamber; the electromagnet drives the push rod to slide up and down through electromagnetic force to open or close the drain hole, and when the push rod moves upward, the piston part pushes the water in the buffer chamber out of the buffer chamber.

[0006] Compared with the prior art, the present invention, by setting the buffer chamber and the push rod with piston, allows water to enter the buffer chamber. When the push rod is pushed, the piston is blocked by the water in the buffer chamber, thereby reducing the acceleration of the piston when it starts to move, and thus reducing the impact generated by the movement of the push rod to reduce noise. Attached Figure Description

[0007] Figure 1 This is an overall appearance view of the present invention.

[0008] Figure 2 This is a disassembled diagram of the present invention.

[0009] Figure 3 This is a bottom view of the water tank's base plate.

[0010] Figure 4 This is a diagram showing the drain valve closed.

[0011] Figure 5 This is a diagram showing the opening of the drain valve.

[0012] The diagram includes: water tank 1, atomizing tank 2, water tank bottom plate 3, drain outlet 4, buffer chamber 5, top rod 6, piston part 61, rod body 62, valve head 63, electromagnet 7, guide sleeve 8, fixing rod 9, return spring 10, magnet 11, and water stop pad 12. Detailed Implementation

[0013] As shown in the figure, the present invention provides a humidifier with a noise-reducing drain valve, comprising a water tank 1, a water tank assembly, and a drain valve. The water tank assembly includes a base and an atomizing tank 2 disposed on the base. The water tank 1 is disposed above the atomizing tank 2, and the bottom of the water tank 1 is housed within the atomizing tank 2. The water tank 1 and the atomizing tank 2 are separated by a water tank bottom plate 3. A drain hole 4 is provided on the water tank bottom plate 3, and the drain valve is used to control the opening or closing of the drain hole 4. The drain valve includes a buffer chamber 5, a push rod 6, and an electromagnet 7. The buffer chamber 5 is disposed within the atomizing tank 2 and located below the drain hole 4. The buffer chamber 5 has an opening to communicate with the atomizing tank 2, allowing water from the atomizing tank 2 to enter the buffer chamber 5. The push rod 6 includes a piston portion 61, a rod body 62, and a valve head 63. The piston portion 61 is disposed at the bottom end of the rod body 62, and the outer diameter of the piston portion 61 is larger than the outer diameter of the rod body 62. The outer diameter of the piston portion 61 is less than or equal to the inner diameter of the buffer chamber 5. The valve head 63 is located at the top of the rod body 62 and is used to open or close the drain hole 4. The push rod 6 is slidably disposed within the buffer chamber 5. The electromagnet 7 drives the push rod 6 to slide up and down via electromagnetic force to open or close the drain hole 4. When the push rod 6 moves upward, the piston portion 61 pushes the water in the buffer chamber 5 out of the buffer chamber 5. The water in the buffer chamber 5 hinders the movement of the push rod 6 within the buffer chamber 5, thereby reducing the impact generated by the movement of the push rod 6 and the noise generated by the impact.

[0014] A guide sleeve 8 is connected above the buffer chamber 5. The inner diameter of the guide sleeve 8 is smaller than that of the buffer chamber 5. When water flows from the buffer chamber 5 to the guide sleeve 8, the cross-sectional area of ​​the pipe decreases while the flow rate remains constant. Since the flow rate is proportional to the cross-sectional area of ​​the pipe and the flow velocity, resistance is generated at the connection between the buffer chamber 5 and the guide sleeve 8, hindering the flow of water from the buffer chamber 5 into the guide sleeve 8, thus reducing the upward speed of the push rod. The greater the difference in cross-sectional area between the buffer chamber 5 and the guide sleeve 8, the greater the resistance. The inner diameter of the guide sleeve 8 is matched with the outer diameter of the rod body 62, so that the water entering the guide sleeve 8 can only flow in the gap between the rod body 62 and the guide sleeve 8, reducing the actual cross-sectional area of ​​the guide sleeve 8, thereby increasing the resistance and further reducing the upward acceleration of the push rod 6. The guide sleeve 8 is provided with a drain outlet, from which the water entering the guide sleeve 8 is discharged. The diameter of the guide sleeve 8 is less than one-third of the inner diameter of the buffer cavity 5, so as to increase the resistance of the piston part 61 to squeeze water from the buffer cavity 5 into the guide sleeve 8.

[0015] The buffer chamber 5 has a barrel-shaped structure. An opening at the bottom of the buffer chamber 5 connects to the atomizing groove 2. When the piston part 61 is stationary, water will not flow through the gap between the buffer chamber 5 and the piston part 61 due to surface tension. When the push rod 6 accelerates upward, the water pressure around the gap between the piston part 61 and the buffer chamber 5 increases, allowing water to flow through the gap. Thus, water from the atomizing groove 2 can flow into the buffer chamber 5 through the opening and the gap, keeping the buffer chamber 5 always full of water. The buffer chamber 5 is fixed to the bottom plate 3 of the water tank by a fixing rod 9, and forms a drainage channel with the drain hole 4 at intervals.

[0016] A return spring 10 is installed inside the buffer cavity 5. One end of the return spring 10 abuts against the piston part 61, and the other end abuts against the top of the buffer cavity 5. A magnet 11 is installed inside the piston part 61. When the electromagnet 7 is energized, the magnet 11 is subjected to a magnetic field, causing the push rod 6 to move upward and compress the return spring 10. When the electromagnet 7 is de-energized, the magnetic field disappears, and the return spring 10 pushes the push rod 6 away, causing the push rod 6 to move downward back to its original position.

[0017] The electromagnet 7 is installed on the outside of the atomizing tank to prevent the circuit of the electromagnet 7 from coming into contact with water. The valve head 63 is provided with a water-stop pad 12, which is used to seal or open the drain hole.

[0018] The above description is merely a preferred embodiment of the present invention. It should be noted that for those skilled in the art, any modifications and improvements made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A humidifier with a noise-reducing drain valve, comprising a water tank, a water trough assembly, and a drain valve, wherein, The water tank assembly includes a base and an atomizing tank disposed on the base. The water tank is positioned above the atomizing tank, with its bottom contained within the atomizing tank. The water tank and the atomizing tank are separated by a bottom plate. A drain hole is provided on the bottom plate, and a drain valve controls the opening and closing of the drain hole. The drain valve includes a buffer chamber, a push rod, and an electromagnet. The buffer chamber is disposed within the atomizing tank and below the drain hole. The buffer chamber has an opening communicating with the atomizing tank, allowing water from the atomizing tank to enter the buffer chamber. The push rod includes a piston portion, a valve head, and a rod body. The piston portion is located at the bottom end of the rod body. Furthermore, the outer diameter of the piston part is larger than the outer diameter of the rod body, and the outer diameter of the piston part is smaller than or equal to the inner diameter of the buffer cavity; the valve head is disposed at the top of the rod body for opening or closing the drain hole; the push rod is slidably disposed in the buffer cavity; a guide sleeve is connected above the buffer cavity, the inner diameter of the guide sleeve is adapted to the outer diameter of the rod body and smaller than the inner diameter of the buffer cavity, and a drain outlet is provided on the guide sleeve; the electromagnet drives the push rod to slide up and down to open or close the drain hole by generating a magnetic field, and when the push rod moves upward, the piston part squeezes the water in the buffer cavity into the guide sleeve and discharges it through the drain outlet.

2. A humidifier with a noise-reducing drain valve according to claim 1, characterized in that: The inner diameter of the guide sleeve is less than one-third of the inner diameter of the buffer cavity, so as to increase the resistance of the piston part in squeezing water from the buffer cavity into the guide sleeve.

3. A humidifier with a noise-reducing drain valve according to claim 1, characterized in that: The buffer chamber has a barrel-shaped structure, and an opening is provided at the bottom of the buffer chamber. Water in the atomizing tank can enter the buffer chamber through the opening and the piston part.

4. A humidifier with a noise-reducing drain valve according to claim 1, characterized in that: The piston section is equipped with a magnet. When the electromagnet is energized, the magnet is subjected to a magnetic field and begins to move.

5. A humidifier with a noise-reducing drain valve according to claim 1, characterized in that: It also includes a return spring, which is disposed in the buffer cavity. One end of the return spring abuts against the piston portion, and the other end of the return spring abuts against the guide sleeve.

6. A humidifier with a noise-reducing drain valve according to claim 1, characterized in that: It also includes a fixing rod, the buffer cavity is fixed to the bottom plate of the water tank by the fixing rod, and forms a drainage channel with the drain hole at a distance.

7. A humidifier with a noise-reducing drain valve according to claim 1, characterized in that: The electromagnet is installed on the outside of the atomizing tank.

8. A humidifier with a noise-reducing drain valve according to claim 1, characterized in that: The valve head is equipped with a water-stop pad, which is used to seal the drain hole.

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