一种角度测量装置和风阀开度检测系统

Abstract

本实用新型公开了一种角度测量装置和风阀开度检测系统，角度测量装置包括：壳体，限定内腔；驱动轴，设置于内腔中，用于与外部驱动装置传动连接；联动件，分别与驱动轴和用于与传动机构传动连接，传动机构用于驱动待调节件旋转以调节开度，联动件设有第一检测单元；多个第二检测单元，设置于内腔中，多个第二检测单元绕驱动轴的轴向的设定角度间隔设置，驱动装置的驱动轴用于驱动联动件带动第一检测单元绕轴向相对多个第二检测单元运动；角度定位单元，设置于内腔中，角度定位单元分别与驱动装置和多个第二检测单元电连接。本实用新型的执行器既能在断电恢复后精确获取风阀的开度值，又能避免破坏洁净环境、具有较长使用寿命。

Claims

1. An angle measuring device, characterized in that The angle measuring device includes: The shell defines the internal cavity; A drive shaft is disposed in the inner cavity and is used for transmission connection with an external drive device; The linkage is respectively connected to the drive shaft and to the transmission mechanism, which is used to drive the member to be adjusted to rotate to adjust the opening degree. The linkage is provided with a first detection unit. Multiple second detection units are disposed in the inner cavity. The multiple second detection units are arranged at predetermined angles around the axis of the drive shaft. The drive shaft of the drive device is used to drive the linkage to move the first detection unit relative to the multiple second detection units around the axis. An angle positioning unit is disposed in the inner cavity, and the angle positioning unit is electrically connected to the driving device and the plurality of second detection units respectively.

2. The angle measuring device according to claim 1, characterized in that The linkage component includes: A first connecting part is provided through the housing and rotatably connected to the housing. The first connecting part is used to connect with the transmission mechanism. The second connecting part is housed in the inner cavity and connected to the drive shaft of the drive device, and the first detection unit is connected to the second connecting part.

3. The angle measuring device according to claim 2, characterized in that The outer surface of the second connecting part is provided with a protrusion, which protrudes radially from the driving shaft onto the second connecting part, and the first detection unit is disposed on the protrusion.

4. The angle measuring device according to claim 3, characterized in that The protrusion has a groove, and the first detection unit is connected to the groove.

5. The angle measuring device according to any one of claims 2 to 4, characterized in that, The first connecting portion includes a first recess, the shape of which is adapted to the shape of the transmission mechanism; the second connecting portion includes a second recess, the shape of which is adapted to the shape of the drive shaft.

6. The angle measuring device according to any one of claims 2 to 4, characterized in that The housing includes: Top cover; The lower shell, the upper cover and the lower shell together define the inner cavity. Along the axial direction, the first connecting part passes through the lower shell, and the angle positioning unit is fixedly connected to the lower shell.

7. The angle measuring device according to any one of claims 1 to 4, characterized in that The angle positioning unit is a positioning circuit board. The plurality of second detection units are arranged at intervals around the axial direction on the same circumference of the positioning circuit board with the drive shaft as the center. Along the axial direction, the first detection unit is arranged facing the positioning circuit board.

8. The angle measuring device according to any one of claims 1 to 4, characterized in that The second detection unit is a Hall sensor, the first detection unit is a magnet, and the driving device is a stepper motor.

9. The angle measuring device of claim 1, wherein, The plurality of second detection units include at least a closed detection unit and a fully open detection unit; When the angle positioning unit receives only the first detection signal from the closing detection unit, the opening is in a closed state; When the angle positioning unit receives only the first detection signal from the fully open detection unit, the opening is in the fully open state.

10. The angle measuring device according to claim 9, characterized in that The angle range between the closed detection unit and the fully open detection unit is 90°, and the included angle between two adjacent second detection units is 22.5°.

11. The angle measuring device of claim 1, wherein, The angle positioning unit is used to receive a first detection signal or a second detection signal; wherein each second detection unit is configured to send the first detection signal to the angle positioning unit when the first detection unit is detected; or, each second detection unit is configured to send the second detection signal to the angle positioning unit when the first detection unit is not detected.

12. A damper opening degree detection system, characterized in that, include: Air valve, including: An actuator, comprising the angle measuring device according to any one of claims 1-11, wherein the external driving device is disposed on the actuator; The valve body includes a cylinder and an adjusting blade disposed within the cylinder; A transmission mechanism, one end of which is connected to the adjusting blade, and the other end of which is connected to the drive shaft of the external drive device via the linkage; a control unit, which is electrically connected to the angle positioning unit.

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