Rotary positioning mechanism of motor rotary shaft and its application in water quality sensor
A technology of motor shaft and positioning mechanism, which is used in electrical/magnetic position measurement, instruments, scientific instruments, etc., can solve the problems of easy misoperation, large space requirements, and inability to achieve light isolation, and achieve stable and reliable positioning and integration. small effect
Pending Publication Date: 2018-05-01
福州普贝斯智能科技有限公司
View PDF12 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] (1) Infrared sensing requires a certain amount of light to penetrate the space, and it cannot achieve complete light isolation, and it is prone to misoperation in a small space due to light scattering;
[0004] (2) The micro-touch switch not only requires mechanical touch, but also requires a relatively large space, making it difficult to miniaturize the sensor
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0028] see Figure 1 to Figure 3 As shown, the rotation positioning mechanism 100 of the motor shaft of the present invention includes a magnet 1, a first Hall chip 2, a second Hall chip 3 and a control circuit 4; the magnet 1 is a permanent magnet fixed on the motor shaft 201 Above, the first Hall chip 2 is fixed at the rotation sensing point beside the motor shaft 201, the second Hall chip 3 is fixed at the stop sensing point beside the motor shaft 201, and the first Both the Hall chip 2 and the second Hall chip 3 are connected to the control circuit 4 .
[0029] When the magnet 1 rotates with the motor shaft 201 to the second Hall chip 3, that is, when it rotates to the positive sensing range of the second Hall chip 3, the magnet 1 is pulled down by magnetic attraction. The level of the second Hall chip 3, the control circuit 4 confirms that the motor 200 is working normally after receiving the level signal, if the interrupt signal is not received, the motor is faulty, so ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a rotary positioning mechanism of a motor rotary shaft, which is characterized by comprising a magnet, a first Hall chip, a second Hall chip, and a control circuit; the magnet is fixed on the motor rotary shaft, and the first Hall chip is fixed at a rotating sensing point at the vicinity of the motor rotary shaft, and the second Hall chip is fixed at a stopping sensing pointat the vicinity of the motor rotary shaft; the first Hall chip and the second Hall chip are connected to the control circuit. By using the magnetic sensing method of the Hall chip, the motor rotary shaft is rotated and positioned; the rotary positioning mechanism is higher in integration degree, smaller in occupied space, stable and reliable in positioning, and free from mis-operation.
Description
【Technical field】 [0001] The invention relates to a motor device, in particular to a rotation positioning mechanism of a motor shaft, which can be used in a water quality analyzer. 【Background technique】 [0002] The optical probe in the water quality analyzer such as the water quality sensor needs to use the motor rotation to drive the scraping brush to clean dirt regularly, but the hanging brush must stop at a fixed point, otherwise the optical window will be blocked and the measurement will be affected. At this stage, the rotation positioning of the motor shaft of the water quality sensor usually adopts two methods: infrared photoelectric induction or micro-touch switch inching, but these two methods have different disadvantages: [0003] (1) Infrared sensing requires a certain amount of light to penetrate the space, and it cannot achieve complete light isolation, and it is prone to misoperation in a small space due to light scattering; [0004] (2) Micro-touch switches ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/00G01N21/84
CPCG01B7/003G01N21/84
Inventor 岳元长郑智龙陈昌腾
Owner 福州普贝斯智能科技有限公司