CN214426632U - Ventilation equipment moves a displacement volume measurement system - Google Patents
Ventilation equipment moves a displacement volume measurement system Download PDFInfo
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- CN214426632U CN214426632U CN202120654024.4U CN202120654024U CN214426632U CN 214426632 U CN214426632 U CN 214426632U CN 202120654024 U CN202120654024 U CN 202120654024U CN 214426632 U CN214426632 U CN 214426632U
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- gear
- gear shaft
- magnetic field
- supporting seat
- field source
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Abstract
The utility model relates to a ventilation equipment moves a displacement volume measurement system, including power supply and gear assembly, the gear assembly includes supporting seat, gear and gear shaft, the gear is installed on the gear shaft, the gear shaft erects on the supporting seat, and the one end and the power supply of its gear shaft are connected, has set firmly magnetic field source on the gear shaft, be equipped with the detection device who detects magnetic field source turned angle on the supporting seat. The utility model discloses a set up magnetic field source on the gear shaft, set up the detection device who takes magnetic angle sensor on the gear supporting seat, utilize the sine of magnetic angle sensor output and the voltage signal of cosine relation to reachd magnetic field source pivoted angle, and then obtain gear revolve's angle, finally calculate the distance that moves the door and reciprocate.
Description
Technical Field
The utility model belongs to the technical field of ventilation equipment spare part technique and specifically relates to a ventilation equipment moves a displacement volume measurement system.
Background
The main method for measuring the door moving displacement of the ventilation equipment in the market at present is to adopt a pull rope type displacement sensor, wherein one end of a pull rope is fixed on a door, the length of the pull rope can be changed along with the vertical movement of the door, the output impedance or the output voltage or the output current signal of the pull rope type displacement sensor is changed at any time, and the displacement corresponding to the door is calculated according to the signal.
The pull rope type displacement sensor has the following defects:
(1) the pull rope type displacement sensor requires that the pull-out direction of the rope is parallel to the side face of the body, namely three points of the rope outlet, the minimum stroke measuring point and the maximum stroke measuring point are required to be ensured to be in a line, and the mutual positions increase the installation complexity;
(2) the length of the pull rope is limited, and if the door displacement is greater than the length of the rope, the pull rope type displacement sensor cannot meet the requirements of measuring the highest point and the lowest point;
(3) the pull rope type displacement sensor cannot pull the rope too fast, because the steel wire rope has tightening tension after being pulled out, if the hand is loosened suddenly, the steel wire rope will be pulled back at a high speed under the action of the tension, and the sensor may be damaged to a certain extent.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects in the prior art are overcome, and a system for measuring the displacement of the moving door of the ventilation equipment is provided.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a ventilation equipment moves a displacement volume measurement system, includes power supply and gear assembly, the gear assembly includes supporting seat, gear and gear shaft, the gear is installed on the gear shaft, the gear shaft erects on the supporting seat, and the one end and the power supply of its gear shaft are connected, has set firmly the magnetic field source on the gear shaft, be equipped with the detection device who detects magnetic field source turned angle on the supporting seat.
The rotating angle of the gear can be known through the rotating angle of the magnetic field source, and the diameter of the gear is fixed, so that the up-and-down moving distance of the door can be calculated.
Further inject, detection device includes the detection circuitry board, be equipped with magnetism angle sensor and main control chip on the detection circuitry board, magnetism angle sensor output PWM signal or carry out the communication through SPI interface and main control chip, magnetism angle sensor sets up with magnetic field source relatively.
The detection device has the working principle that a magnetic field source is arranged above the magnetic angle sensor to provide a working magnetic field parallel to the surface direction of the magnetic angle sensor, and the double shafts of the magnetic angle sensor output voltage signals which form sine and cosine relations with the angle of the magnetic field. The rotating angle of the magnetic field source can be calculated by utilizing the sine and cosine relation voltage signals output by the magnetic angle sensor.
Further, the gear is a chain wheel, a chain matched with the chain wheel is arranged on the chain wheel, and the chain is connected with the moving door of the ventilation equipment.
The ventilation equipment is pulled to move the door through the matching of the chain wheel and the chain, so that the transmission efficiency is high.
In order to guarantee the stability of the lifting of the sliding door, the gear assemblies are further limited to be provided with two gear assemblies, and the two gear assemblies are respectively arranged on the ventilation equipment above two sides of the sliding door.
It is still further defined that the two gear assemblies are connected by a drive shaft, and the gear shaft of either gear assembly is connected to the power source.
Through the transmission of transmission shaft, guarantee to move the phenomenon that the door can not take place the slope at the lift in-process and lead to the displacement volume to measure inaccurate.
In order to guarantee the structural firmness of the gear assembly, the supporting seat is further limited, an installation part connected to the ventilation equipment is arranged on the supporting seat, and a reinforcing rib protruding upwards is arranged on the installation part.
The utility model has the advantages that: the utility model discloses a set up magnetic field source on the gear shaft, set up the detection device who takes magnetic angle sensor on the gear supporting seat, utilize the sine of magnetic angle sensor output and the voltage signal of cosine relation to reachd magnetic field source pivoted angle, and then obtain gear revolve's angle, finally calculate the distance that moves the door and reciprocate.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a circuit diagram of the detecting device of the present invention.
Fig. 3 is a schematic diagram of the detecting device of the present invention.
Fig. 4 is a graph of voltage signals output by the middle magnetic angle sensor of the present invention.
In the figure: 1. the magnetic angle sensor comprises a gear assembly, 10 magnetic field sources, 11 supporting seats, 12 gears, 13 gear shafts, 111 mounting portions, 112 reinforcing ribs, 2 detection devices and 21 magnetic angle sensors.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 and fig. 3, a system for measuring a door moving displacement of a ventilation device includes a power source (generally, a motor) and a gear assembly 1, where the gear assembly 1 includes a support base 11, a gear 12 and a gear shaft 13, the gear 12 is installed on the gear shaft 13, the gear shaft 13 is erected on the support base 11, one end of the gear shaft 13 is connected to the power source, a magnetic field source 10 (the magnetic field source of this embodiment employs a magnet) is fixedly disposed on the gear shaft 13, and a detection device 2 for detecting a rotation angle of the magnetic field source 10 is disposed on the support base 11.
The detection device 2 (a circuit diagram of the detection device 2, as shown in fig. 2) includes a detection circuit board, the detection circuit board is provided with a magnetic angle sensor 21 and a main control chip, the magnetic angle sensor 21 outputs a PWM signal or communicates with the main control chip (not shown in the figure, and available in the prior art) through an SPI interface, and the magnetic angle sensor 21 is arranged opposite to the magnetic field source 10. As shown in fig. 3, the schematic diagram of the detecting apparatus 2 is that a magnet is disposed above the magnetic angle sensor 21 to provide a working magnetic field in a direction parallel to the surface of the magnetic angle sensor 21, the magnetic angle sensor 21 outputs (X-axis and Y-axis) voltage signals having sine and cosine relations with the angle of the magnetic field source, as shown in fig. 4, the abscissa is the angle of the magnetic field, the ordinate is the output voltage, the X-axis corresponds to the curve of the output voltage starting from 0, and the Y-axis corresponds to the other curve.
Preferably, the gear 12 is a chain wheel, and a chain matched with the chain wheel is arranged on the chain wheel and connected with the moving door of the ventilation equipment. The gear assemblies 1 are arranged in two numbers, and the two gear assemblies 1 are respectively installed on the ventilation equipment above the two sides of the sliding door. The two gear assemblies 1 are connected through a transmission shaft, and a gear shaft 13 of any one gear assembly 1 is connected with a power source.
In this embodiment, the support base 11 has a mounting portion 111 connected to the ventilation device, and the mounting portion 111 is provided with a reinforcing rib 112 protruding upward.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable people skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (6)
1. The utility model provides a ventilation equipment moves a displacement volume measurement system which characterized in that: including power supply and gear assembly, the gear assembly includes supporting seat, gear and gear shaft, the gear is installed on the gear shaft, the gear shaft erects on the supporting seat, and the one end and the power supply of its gear shaft are connected, has set firmly magnetic field source on the gear shaft, be equipped with the detection device who detects magnetic field source turned angle on the supporting seat.
2. The ventilation apparatus sliding door displacement amount measuring system according to claim 1, wherein: the detection device comprises a detection circuit board, wherein a magnetic angle sensor and a main control chip are arranged on the detection circuit board, the magnetic angle sensor outputs PWM signals or communicates with the main control chip through an SPI (serial peripheral interface), and the magnetic angle sensor and a magnetic field source are arranged oppositely.
3. The ventilation apparatus sliding door displacement amount measuring system according to claim 1, wherein: the gear is a chain wheel, a chain matched with the gear is arranged on the chain wheel, and the chain is connected with a moving door of the ventilation equipment.
4. The ventilation apparatus sliding door displacement amount measuring system according to claim 1, wherein: the gear assemblies are arranged in two numbers, and the two gear assemblies are respectively arranged on the ventilation equipment above two sides of the sliding door.
5. The ventilation apparatus sliding door displacement amount measuring system according to claim 4, wherein: the two gear assemblies are connected through a transmission shaft, and a gear shaft of any one gear assembly is connected with a power source.
6. The ventilation apparatus sliding door displacement amount measuring system according to claim 1, wherein: the supporting seat is provided with an installation part connected to the ventilation equipment, and the installation part is provided with a reinforcing rib protruding upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120654024.4U CN214426632U (en) | 2021-03-31 | 2021-03-31 | Ventilation equipment moves a displacement volume measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120654024.4U CN214426632U (en) | 2021-03-31 | 2021-03-31 | Ventilation equipment moves a displacement volume measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214426632U true CN214426632U (en) | 2021-10-19 |
Family
ID=78075160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120654024.4U Active CN214426632U (en) | 2021-03-31 | 2021-03-31 | Ventilation equipment moves a displacement volume measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214426632U (en) |
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2021
- 2021-03-31 CN CN202120654024.4U patent/CN214426632U/en active Active
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