Variable air volume adjusting air valve with temperature and humidity sensing
By introducing humidity and temperature sensors into the variable air volume regulating valve, and combining them with an angle sensor to control the motor to adjust the blade angle, the problem of air volume regulation lag is solved, achieving precise regulation and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU GUANGHAO INSULATION MATERIALS CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-02
AI Technical Summary
Existing variable air volume (VAV) regulating dampers cannot sense humidity changes in real time, resulting in delayed air volume regulation and excessively high indoor humidity.
It uses humidity and temperature sensors to monitor the airflow temperature and humidity in real time, and controls the motor to adjust the blade angle through the feedback signal of the angle sensor to achieve precise airflow regulation. The simplified mechanical unlocking design facilitates blade disassembly and maintenance.
It enables precise adjustment of air volume, improves system adjustment accuracy, simplifies the inspection, cleaning and maintenance process of blades, and improves equipment availability and maintenance efficiency.
Smart Images

Figure CN224316360U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air valve technology, and in particular to a variable air volume regulating air valve with temperature and humidity sensing. Background Technology
[0002] A variable air volume (VAV) regulating damper is a control device used to dynamically adjust the air volume in a ventilation or air conditioning system. Its core function is to change the airflow through the damper in real time according to the system's operating requirements, so as to maintain indoor environmental parameters within a set range and achieve efficient energy utilization.
[0003] Variable air volume control valves typically adjust air volume only through pressure or wind speed sensors, making it difficult to dynamically adjust according to changes in indoor temperature and humidity. If humidity changes cannot be detected in real time, it may lead to lag in air volume adjustment and excessively high indoor humidity. Utility Model Content
[0004] The purpose of this invention is to provide a variable air volume regulating valve with temperature and humidity sensing. This device enables the adjustment of the angle of the internal blades of the valve based on the temperature and humidity of the external airflow, thus solving the problem in the prior art that it is not convenient to adjust the angle of the internal blades of the valve based on the temperature and humidity of the external airflow.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A variable air volume regulating valve with temperature and humidity sensing includes a housing. A humidity sensor and a temperature sensor are respectively installed inside the housing. Multiple main gears are rotatably connected to the upper end of the housing. Multiple vertical rods are rotatably connected inside the housing, with their upper ends fixedly connected to the lower ends of the main gears. A groove is provided on the side wall of each vertical rod, and slots are provided at both the upper and lower ends of the groove. Multiple blades are disposed on the side wall of the vertical rods, and slots are provided on the side wall of each blade. A protrusion is fixedly connected to the inner wall of each slot, and the protrusion is slidably connected to the groove. A hole is provided at both the upper and lower ends of each protrusion, and a locking block is slidably connected inside each hole or slot, with the locking block slidably connected to the locking slot.
[0007] Preferably, support rods are fixedly connected to the interior of the housing, and a bearing plate is fixedly connected to the ends of multiple support rods. The humidity sensor and temperature sensor are both fixedly connected to the side wall of the bearing plate.
[0008] Preferably, a plurality of gears are rotatably connected inside the housing, and the gears mesh with the main gear.
[0009] Preferably, a motor is fixedly connected to the upper end of the housing, and the output end of the motor is fixedly connected to the upper end of one of the main gears.
[0010] Preferably, a movable plate is slidably connected inside the slot, the movable plate is fixedly connected to the side wall of the locking block, a spring is fixedly connected between the lower end of the movable plate and the bottom of the slot, and a rope is fixedly connected to the end of the locking block.
[0011] Preferably, the sidewall of the protrusion has a cavity inside, a column is rotatably connected inside the cavity, the sidewall of the column is fixedly connected to the end of the rope, and a circular plate is fixedly connected to the end of the column.
[0012] Compared with the prior art, the advantages of this utility model are:
[0013] 1. Humidity and temperature sensors can monitor the temperature and humidity of the external airflow in real time and accurately transmit the data to the controller. An angle sensor then feeds back the rotation angle information of the blades to the controller in real time. The controller precisely controls the operation of the motor based on the angle information, thereby adjusting the blades to the most suitable position and achieving precise adjustment of the airflow. This precise control can meet the requirements of subtle changes in airflow in different scenarios and improve the adjustment accuracy of the system.
[0014] 2. By rotating the circular plate, the column is driven to wind up the rope, which in turn pulls the locking block out of the slot. This design simplifies the complex mechanical unlocking process into a simple rotation action. The convenient disassembly method allows operators to quickly remove the blade from the vertical rod, making it easy to inspect, clean, repair or replace the blade itself. Timely repair or replacement of new blades reduces equipment downtime and improves equipment availability and maintenance efficiency. Attached Figure Description
[0015] Figure 1 This is a front view of the external structure of a variable air volume regulating valve with temperature and humidity sensing proposed in this utility model.
[0016] Figure 2 This is a rear view of the external structure of a variable air volume regulating valve with temperature and humidity sensing proposed in this utility model.
[0017] Figure 3 This is a rear cross-sectional view of a variable air volume regulating valve with temperature and humidity sensing proposed in this utility model.
[0018] Figure 4 This is a side sectional view of a variable air volume regulating valve with temperature and humidity sensing proposed in this utility model.
[0019] Figure 5 for Figure 4 A schematic diagram of the structure of part A.
[0020] Figure 6 for Figure 4 A schematic diagram of the structure of part B.
[0021] In the diagram: 001, housing; 101, support rod; 102, bearing plate; 103, humidity sensor; 104, temperature sensor; 105, main gear; 106, motor; 107, gear; 108, vertical rod; 109, groove; 110, slot; 002, blade; 201, slot; 202, protrusion; 203, hole; 204, locking block; 205, movable plate; 206, spring; 207, rope; 208, chamber; 209, column; 210, circular plate. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Reference Figure 1-6 A variable air volume regulating valve with temperature and humidity sensing includes a housing 001. A humidity sensor 103 and a temperature sensor 104 are respectively installed inside the housing 001. Multiple main gears 105 are rotatably connected to the upper end of the housing 001. Multiple vertical rods 108 are rotatably connected inside the housing 001, with the upper end of each vertical rod 108 fixedly connected to the lower end of the main gears 105. Grooves 109 are provided on the sidewalls of the vertical rods 108, with slots 110 at both the upper and lower ends of the grooves 109. Multiple blades 002 are located on the sidewalls of the vertical rods 108, with slots 201 on the sidewalls of the blades 002. Protrusions 202 are fixedly connected to the inner walls of the slots 201 and are slidably connected to the grooves 109. Holes 203 are provided at both the upper and lower ends of the protrusions 202, with locking blocks 204 slidably connected inside the holes 203 and slidingly connected to the slots 110. An angle sensor is fixedly connected inside one of the main gears 105. The device has a sidewall of 204 with an inclined setting. The operator slides the protrusion 202 inside the groove 201 on the sidewall of the blade 002 into the groove 109 on the sidewall of the vertical rod 108. During this process, the inclined wall of the 204 contacts the side of the groove 109 and slides into the slot 203. When the slot 203 is aligned with the slot 110, part of the 204 slides into the slot 110, thereby quickly and easily installing the blade 002 onto the sidewall of the vertical rod 108. Then, the operator fixes the housing 001 inside the designated pipe. At the same time, the humidity sensor 103 and the temperature sensor 104 face the direction of the external airflow. The humidity sensor 103 and the temperature sensor 104 monitor the temperature and humidity of the external airflow. Then, multiple main gears 105 rotate. At the same time, the main gears 105 drive the blade 002 to rotate through the vertical rod 108, adjusting the blade 002 to a suitable angle and adjusting the airflow inside the housing 001.
[0024] Support rods 101 are fixedly connected to the interior of the housing 001. The ends of multiple support rods 101 are fixedly connected to a bearing plate 102. Humidity sensor 103 and temperature sensor 104 are fixedly connected to the side wall of bearing plate 102. The combination of multiple support rods 101 and bearing plate 102 supports humidity sensor 103 and temperature sensor 104.
[0025] Multiple gears 107 are rotatably connected inside the housing 001. The gears 107 mesh with the main gears 105. When one of the main gears 105 rotates, the other main gears 105 rotate accordingly through the transmission of the multiple gears 107.
[0026] A motor 106 is fixedly connected to the upper end of the housing 001. The output end of the motor 106 is fixedly connected to the upper end of one of the main gears 105. The output end of the motor 106 drives the main gear 105 to rotate. The humidity sensor 103, temperature sensor 104, motor 106 and angle sensor are all electrically connected to an external controller. The controller receives the signals transmitted by the angle sensor, humidity sensor 103 and temperature sensor 104, and turns the motor 106 on and off to adjust the blade 002 to a suitable angle.
[0027] A movable plate 205 is slidably connected inside the slot 203. The movable plate 205 is fixedly connected to the side wall of the locking block 204. A spring 206 is fixedly connected between the lower end of the movable plate 205 and the bottom of the slot 203. A rope 207 is fixedly connected to the end of the locking block 204. When the locking block 204 is pushed into the slot 203, it causes the movable plate 205 to slide downward, compressing the spring 206. When the thrust on the locking block 204 disappears, the energy of the spring 206 is released, pushing the movable plate 205 to slide, causing the locking block 204 to slide. When the rope 207 is pulled, it pulls the locking block 204 to slide.
[0028] The side wall of the protrusion 202 is provided with a chamber 208. A column 209 is rotatably connected inside the chamber 208. The side wall of the column 209 is fixedly connected to the end of the rope 207. A circular plate 210 is fixedly connected to the end of the column 209. The operator manually rotates the circular plate 210 to make the column 209 rotate, and at the same time, the column 209 winds up the rope 207.
[0029] In this utility model, the operator slides the protrusion 202 inside the groove 201 on the side wall of the blade 002 into the groove 109 on the side wall of the vertical rod 108. During this process, the inclined wall of the locking block 204 contacts the side of the groove 109 and slides into the hole 203. When the hole 203 is aligned with the locking groove 110, part of the locking block 204 slides into the locking groove 110, thereby quickly and conveniently installing the blade 002 onto the side wall of the vertical rod 108.
[0030] The operator fixes the housing 001 inside the designated pipe. At the same time, the humidity sensor 103 and the temperature sensor 104 face the direction of the external airflow. The humidity sensor 103 and the temperature sensor 104 monitor the temperature and humidity of the external airflow. The controller receives the signals transmitted by the humidity sensor 103 and the temperature sensor 104 and turns on the motor 106. The output of the motor 106 drives one of the main gears 105 to rotate. Through the transmission of multiple gears 107, the other main gears 105 rotate accordingly. At the same time, the main gears 105 drive the blades 002 to rotate through the vertical rod 108. Meanwhile, the controller receives the signal transmitted by the angle sensor and turns the motor 106 on and off, adjusting the blades 002 to a suitable angle and regulating the airflow inside the housing 001.
[0031] When it is necessary to disassemble the blade 002, multiple blades 002 are rotated horizontally to close the inside of the housing 001. Then, the operator manually rotates the circular plate 210, causing the column 209 to rotate. At the same time, the column 209 winds up the rope 207, and the rope 207 pulls the locking block 204 to slide. The part of the locking block 204 located inside the locking groove 110 slides into the hole groove 203. Then, the operator pulls the circular plate 210 horizontally to remove the blade 002 from the side wall of the vertical rod 108.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A variable air volume regulating damper with temperature and humidity sensing, characterized in that, The device includes a housing (001), inside which a humidity sensor (103) and a temperature sensor (104) are respectively installed. Multiple main gears (105) are rotatably connected to the upper end of the housing (001), and multiple vertical rods (108) are rotatably connected to the housing (001). The upper end of the vertical rod (108) is fixedly connected to the lower end of the main gear (105). The side wall of the vertical rod (108) is provided with a groove (109), and both the upper and lower ends of the groove (109) are provided with slots (110). Multiple blades (002) are provided on the side wall of the vertical rod (108). The side wall of the blade (002) is provided with a groove (201). A protrusion (202) is fixedly connected to the inner wall of the groove (201). The protrusion (202) is slidably connected to the groove (109). Both the upper and lower ends of the protrusion (202) are provided with holes (203). A locking block (204) is slidably connected inside the hole (203). The locking block (204) is slidably connected to the locking groove (110).
2. The variable air volume regulating valve with temperature and humidity sensing according to claim 1, characterized in that, Support rods (101) are fixedly connected to the interior of the housing (001) on all four sides. The ends of multiple support rods (101) are fixedly connected to a bearing plate (102). The humidity sensor (103) and temperature sensor (104) are both fixedly connected to the side wall of the bearing plate (102).
3. A variable air volume regulating damper with temperature and humidity sensing according to claim 1, characterized in that, The housing (001) is rotatably connected to a plurality of gears (107), which mesh with the main gear (105).
4. A variable air volume regulating damper with temperature and humidity sensing according to claim 1, characterized in that, A motor (106) is fixedly connected to the upper end of the housing (001), and the output end of the motor (106) is fixedly connected to the upper end of one of the main gears (105).
5. A variable air volume regulating damper with temperature and humidity sensing according to claim 1, characterized in that, A movable plate (205) is slidably connected inside the slot (203). The movable plate (205) is fixedly connected to the side wall of the locking block (204). A spring (206) is fixedly connected between the lower end of the movable plate (205) and the bottom of the slot (203). A rope (207) is fixedly connected to the end of the locking block (204).
6. A variable air volume regulating damper with temperature and humidity sensing according to claim 5, characterized in that, The protrusion (202) has a cavity (208) inside its side wall. A column (209) is rotatably connected inside the cavity (208). The side wall of the column (209) is fixedly connected to the end of the rope (207). A circular plate (210) is fixedly connected to the end of the column (209).