Ceiling type fresh air system terminal humidifier
By installing a humidifier at the end of a ceiling-mounted fresh air system, and using wind speed detection and an S-shaped flow channel to adjust the size of water mist particles, the problems of uneven humidification and energy waste in traditional fresh air systems are solved, achieving uniform indoor humidity and energy-saving effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-25
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional fresh air systems typically have humidifiers located at the main unit, resulting in uneven humidification and energy waste, and making it impossible to accurately control humidity according to room requirements.
In a ceiling-mounted fresh air system, a humidifier is installed at the terminal. The length of the S-shaped flow channel is adjusted using a wind speed detection device. Combined with an ultrasonic atomizing device and changes in wind force, the size of the water mist particles is automatically adjusted to ensure uniform distribution.
It automatically adjusts the size of water mist particles according to wind changes, ensuring uniform indoor humidity, saving energy, and adapting to humidification needs under different wind conditions.
Smart Images

Figure CN117212936B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of fresh air system technology, and more particularly to a ceiling-mounted fresh air system terminal humidifier. Background Technology
[0002] A fresh air system is an independent air handling system consisting of a supply air system and an exhaust air system. It is divided into two types: ducted fresh air systems and ductless fresh air systems. A ducted fresh air system consists of a fresh air unit and ductwork fittings. The fresh air unit purifies outdoor air and introduces it into the room, while the indoor air is exhausted through the ducts.
[0003] Traditional fresh air systems have humidifiers located at the main unit. When individual rooms need humidification, the humidifier at the main unit must be activated to deliver water mist to the rooms that need humidification via airflow. This humidification method not only easily produces condensation but also wastes energy. Summary of the Invention
[0004] The purpose of this invention is to solve the problems pointed out in the background art, and to propose a ceiling-mounted fresh air system terminal humidifier.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A ceiling-mounted fresh air system terminal humidifier includes a fresh air fan, which is connected to various rooms through multiple fresh air ducts. A humidifier is suspended at the end of the fresh air duct in each room. The humidifier includes a water tank, which is equipped with an ultrasonic atomizing device. The top of the water tank is connected to the fresh air duct through a mist inlet. The water tank is equipped with an S-shaped flow channel for water mist to pass through. The S-shaped flow channel can shorten as the airflow in the fresh air duct increases and lengthen as the airflow in the fresh air duct decreases.
[0007] The water tank has a first E-shaped plate fixedly installed inside and a second E-shaped plate slidably installed inside. The second E-shaped plate is equipped with a power mechanism that can drive its movement. The second E-shaped plate and the first E-shaped plate are arranged alternately to form the S-shaped flow channel.
[0008] The fresh air duct is equipped with a wind speed detection device. The wind speed detection device detects the wind force in the fresh air duct, which causes the power mechanism to drive the second E-shaped plate to move and change the length of the S-shaped flow channel.
[0009] A first E-shaped plate is fixedly installed inside the water tank, and a second E-shaped plate is slidably installed. Along the airflow direction of the fresh air duct, the second E-shaped plate is located behind the first E-shaped plate. A tension spring connects the second E-shaped plate to the water tank. A wind deflector is fixedly connected above the second E-shaped plate. The wind deflector extends into the S-shaped flow channel through the mist inlet. The wind deflector is set perpendicular to the airflow direction.
[0010] The ultrasonic atomizing device includes a support plate located inside a water tank, and an ultrasonic atomizing head is mounted on the support plate.
[0011] The support plate is fixedly connected to a float plate, which allows the support plate to be suspended in the water, and the ultrasonic atomizing head to be immersed in the water, with the ultrasonic atomizing head 10-20mm away from the liquid surface. A vertically arranged guide rod is fixedly connected inside the water tank, and the guide rod passes through the support plate and the two are slidably connected.
[0012] The water tank is equipped with an inlet valve, which is connected to pressurized water. A water level detector electrically connected to the inlet valve is installed inside the water tank.
[0013] The ceiling-mounted terminal humidifier for a fresh air system proposed in this invention has the following advantages: When the airflow is strong, due to the large difference in the size of the water mist particles, larger particles travel a shorter distance out of the fresh air duct, while smaller particles travel a longer distance. This allows the water mist to be distributed more evenly under strong airflow, resulting in more uniform indoor humidity. When the airflow is weak, because the difference in the size of the water mist particles is smaller, and the particles themselves are smaller, even a weak airflow can cause the water mist to undergo Brownian motion in the room, which also results in more uniform indoor humidity. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the humidifier distribution structure of the present invention;
[0015] Figure 2 This is a schematic diagram of the humidifier structure of the present invention.
[0016] In the diagram: 1. Fresh air fan; 2. Fresh air duct; 3. Humidifier; 4. First E-shaped plate; 5. Water level detector; 6. Water inlet valve; 7. Float; 8. Ultrasonic atomizing head; 9. Support plate; 10. Guide rod; 11. Water tank; 12. Second E-shaped plate; 13. Tension spring; 14. Mist inlet; 15. Wind deflector; 16. S-shaped flow channel. Detailed Implementation
[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0018] Reference Figure 1-2The ceiling-mounted fresh air system terminal humidifier includes a fresh air fan 1, which is connected to each room through multiple fresh air ducts 2. A humidifier 3 is suspended at the end of each fresh air duct 2 in each room. The humidifier 3 includes a water tank 11, which is equipped with an ultrasonic atomizing device. The top of the water tank 11 is connected to the fresh air duct 2 through a mist inlet 14. The water tank 11 is equipped with an S-shaped flow channel 16 through which water mist passes. The S-shaped flow channel 16 can shorten as the air force of the fresh air duct 2 increases and lengthen as the air force of the fresh air duct 2 decreases.
[0019] Turn on the appropriate humidifier according to the room's needs. The water mist generated by the humidifier is delivered into the room via fresh air to achieve humidification. The water mist generated by the ultrasonic atomizing device enters the fresh air duct 2 after passing through the S-shaped flow channel 16. The water mist particles generated by the ultrasonic atomizing device are not uniform in size. The shorter the path of the water mist through the S-shaped flow channel 16, the greater the size difference of the water mist particles sprayed from the mist inlet 14. The longer the path of the water mist through the S-shaped flow channel 16, the smaller the size difference of the water mist particles sprayed from the mist inlet 14, and the smaller the particles themselves. The S-shaped flow channel 16 of this device can... The length of the air duct can be adjusted as the airflow in the fresh air duct increases and decreases as the airflow in the fresh air duct decreases. At high airflow, due to the large size difference of the water mist particles, larger particles travel a shorter distance outside the duct, while smaller particles travel a longer distance. This allows for a more even distribution of the water mist under high airflow, resulting in more uniform indoor humidity. At low airflow, because the size difference of the water mist particles is smaller, and the particles themselves are smaller, even a light airflow can cause the water mist to undergo Brownian motion within the room, also resulting in more uniform indoor humidity.
[0020] In one embodiment of the S-shaped flow channel 16, a first E-shaped plate 4 is fixedly installed inside the water tank 11, and a second E-shaped plate 12 is slidably installed. The second E-shaped plate 12 is equipped with a power mechanism capable of driving its movement. The second E-shaped plate 12 and the first E-shaped plate 4 are arranged alternately to form the S-shaped flow channel 16. A wind speed detection device is provided inside the fresh air duct 2. The wind speed detection device detects the wind force in the fresh air duct 2, causing the power mechanism to drive the second E-shaped plate 12 to move, thereby changing the length of the S-shaped flow channel 16.
[0021] In another embodiment of the S-shaped flow channel 16, a first E-shaped plate 4 is fixedly installed inside the water tank 11, and a second E-shaped plate 12 is slidably installed. Along the airflow direction of the fresh air duct 2, the second E-shaped plate 12 is located behind the first E-shaped plate 4. A tension spring 13 connects the second E-shaped plate 12 and the water tank 11. A wind deflector 15 is fixedly connected above the second E-shaped plate 12, extending into the S-shaped flow channel 16 through the mist inlet 14. The wind deflector 15 is perpendicular to the airflow direction. When the wind is stronger, the thrust of the wind on the wind deflector 15 will be greater, the overlap between the E-shaped plates will decrease, and the S-shaped flow channel 16 will become shorter. Conversely, when the wind is weaker, the thrust of the wind on the wind deflector 15 will be smaller, the overlap between the E-shaped plates will increase, and the S-shaped flow channel 16 will become longer. This method automatically controls the length of the S-shaped flow channel 16, resulting in a simple structure and low cost.
[0022] In one embodiment, the ultrasonic atomizing device includes a support plate 9 located inside a water tank 11. An ultrasonic atomizing head 8 is mounted on the support plate 9. A float plate 7 is fixedly connected to the support plate 9, allowing the support plate 9 to suspend in the water while the ultrasonic atomizing head 8 is immersed in the water at a distance of 10-20 mm from the liquid surface. A vertically installed guide rod 10 is fixed inside the water tank 11, passing through the support plate 9 and slidably connected to it. The water tank 11 has an inlet valve 6 connected to pressurized water. A water level detector 5, electrically connected to the inlet valve 6, is installed inside the water tank 11. The water level detector 5 determines the water level in the water tank 11 for easy water intake. Since the ultrasonic atomizing head 8 is suspended in the liquid, its depth changes with the liquid level, ensuring the ultrasonic atomizing head 8 maintains a consistent depth and the atomized particle size remains essentially constant.
[0023] It should be noted that shallower depths result in more liquid being affected by vibration, producing more droplets and thus increasing the amount of atomization. However, deeper depths may reduce the amount of atomization but may provide a more stable atomization effect.
[0024] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes to the technical solution and inventive concept of the present invention within the scope of the technology disclosed in the present invention should be covered within the scope of protection of the present invention.
Claims
1. A ceiling-mounted fresh air system terminal humidifier, comprising a fresh air fan (1), wherein the fresh air fan (1) is connected to various rooms respectively through multiple fresh air ducts (2), characterized in that, Humidifiers (3) are suspended at the end of the fresh air duct (2) in each room. The humidifier (3) includes a water tank (11) and is equipped with an ultrasonic atomizing device. The top of the water tank (11) is connected to the fresh air duct (2) through a mist inlet (14). The water tank (11) is equipped with an S-shaped flow channel (16) through which water mist passes. The S-shaped flow channel (16) can shorten as the airflow of the fresh air duct (2) increases and lengthen as the airflow of the fresh air duct (2) decreases.
2. The ceiling-mounted fresh air system terminal humidifier according to claim 1, characterized in that, The water tank (11) is fixedly installed with a first E-shaped plate (4) and slidably installed with a second E-shaped plate (12). The second E-shaped plate (12) is equipped with a power mechanism that can drive its movement. The second E-shaped plate (12) and the first E-shaped plate (4) are staggered to form the S-shaped flow channel (16).
3. The ceiling-mounted fresh air system terminal humidifier according to claim 2, characterized in that, The fresh air duct (2) is equipped with a wind speed detection device. The wind speed detection device detects the wind force in the fresh air duct (2) and causes the power mechanism to drive the second E-shaped plate (12) to move so as to change the length of the S-shaped flow channel (16).
4. The ceiling-mounted fresh air system terminal humidifier according to claim 1, characterized in that, The water tank (11) is fixedly installed with a first E-shaped plate (4) and slidably installed with a second E-shaped plate (12). Along the airflow direction of the fresh air duct (2), the second E-shaped plate (12) is located behind the first E-shaped plate (4). A tension spring (13) connects the second E-shaped plate (12) and the water tank (11). A wind deflector (15) is fixedly connected above the second E-shaped plate (12). The wind deflector (15) extends into the S-shaped flow channel (16) through the mist inlet (14). The wind deflector (15) is set perpendicular to the airflow direction.
5. The ceiling-mounted fresh air system terminal humidifier according to any one of claims 1-4, characterized in that, The ultrasonic atomizing device includes a support plate (9) located inside a water tank (11), and an ultrasonic atomizing head (8) is mounted on the support plate (9).
6. The ceiling-mounted fresh air system terminal humidifier according to claim 5, characterized in that, The support plate (9) is fixedly connected to a float plate (7), which allows the support plate (9) to be suspended in the water, and the ultrasonic atomizing head (8) to be immersed in the water, with the ultrasonic atomizing head (8) 10-20mm away from the liquid surface. A vertically arranged guide rod (10) is fixedly connected inside the water tank (11), and the guide rod (10) passes through the support plate (9) and the two are slidably connected.
7. The ceiling-mounted fresh air system terminal humidifier according to any one of claims 1-4 and 6, characterized in that, The water tank (11) is provided with an inlet valve (6), which is connected to pressurized water. A water level detector (5) electrically connected to the inlet valve (6) is installed inside the water tank (11).
Citation Information
Patent Citations
Pulsating airflow generating device adopting spring system
CN107366661A
Air supply pipeline for air supply to indoor humidifying device
CN108458460A