CN217060280U - Magnetic damping effect mechanical wind direction sensor - Google Patents

Abstract

The utility model relates to a wind direction sensor technical field provides a magnetic damping effect mechanical type wind direction sensor, its characterized in that: the wind vane drives the magnet and the coded disc to rotate, the iron ring is sleeved on the circumferential side of the magnet, and the electronic measuring component is used for collecting data of the coded disc; the utility model discloses an utilize magnetic damping phenomenon to reduce wind vane inertia, the dynamic response ability that can improve the anemoscope makes the anemoscope data of gathering press close to actual environment more, has ageing more.

Description

Magnetic damping effect mechanical wind direction sensor

Technical Field

The utility model relates to a wind direction sensor technical field particularly, relates to a magnetic damping effect mechanical type wind direction sensor.

Background

A wind direction sensor: an instrument for measuring wind direction; the direction principle is that the empennage of the wind vane is utilized to provide a large windward surface, and the windward surface generates a force opposite to the incoming wind direction, so that the indication direction of the wind vane is changed, and the purpose of measuring the wind direction is achieved.

The existing general wind direction sensors are three types:

electromagnetic wind direction sensor: the sensor is designed by utilizing an electromagnetic principle, and the types of the principles are more, so the structure is different, and at present, a gyroscope chip or an electronic compass is used as a basic element of some sensors, so the measurement accuracy is further improved.

Photoelectric wind direction sensor: the wind direction sensor adopts an absolute Gray code disc as a basic element, and uses a specially customized code, and can accurately output corresponding wind direction information by using a photoelectric signal conversion principle.

Resistance-type wind direction sensor: the wind direction sensor adopts a structure similar to a sliding rheostat, the maximum value and the minimum value of generated resistance values are respectively marked as 360 degrees and 0 degrees, when a wind vane rotates, a sliding rod of the sliding rheostat can rotate along with the wind vane at the top, and the generated different voltage changes can calculate the angle or the direction of the wind direction.

The above three kinds of wind direction sensors all have the following problems: the wind vane has inertia (inertia value) due to rotation, the reaction force generated by the wind vane is related to the area of the maximum windward surface of the tail wing, when the inertia value exceeds the reaction force generated by the tail wing of the wind vane, the wind vane cannot be balanced, and in actual use, the sensitivity of a wind direction indicator is poorer when the inertia value is larger, and the performance of rapidly positioning a wind direction is deteriorated. The positioning time is long, the difference between the positioning position and the actual direction is large, although the data can be processed by adopting an averaging mode, the mode is not an optimal solution under the working condition of certain real-time wind direction values with higher requirements; the real-time wind direction measurement value lags, so that the accuracy of wind direction measurement is not enough, and further the optimal windward side cannot be determined at the first time; on the wind generating set, the problems of reduction of the power peak value of the fan, reduction of the generating capacity and the like can be caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a magnetic damping effect mechanical type wind direction sensor, it utilizes magnetic damping phenomenon to reduce the dynamic response ability that wind vane inertia improves wind direction instrument, makes the wind direction instrument data of gathering press close to actual environment more, has the ageing more.

The embodiment of the utility model discloses a realize through following technical scheme: magnetic damping effect mechanical wind direction sensor, its characterized in that: the wind vane drives the magnet and the coded disc to rotate, the iron ring is sleeved on the circumferential side of the magnet, and the electronic measuring component is used for collecting data of the coded disc.

Further, the device also comprises a shell and a bearing; the magnet, the iron ring, the code disc and the electronic measuring component are arranged in the shell; wind vane, bearing, magnet and code wheel set up with the pivot and connect through a pivot, and magnet and code wheel pass through the inside of bearing swivelling joint at the casing, and the hoop is fixed to be set up inside the casing, and electron measurement component sets up the one side of keeping away from the pivot at the code wheel.

Furthermore, the wind vane, the bearing, the magnet, the coded disc and the electronic measuring part are sequentially arranged from top to bottom.

Further, the shell is a rotating body, and the rotating shaft is consistent with the rotating shaft of the magnet; the outer side of the iron ring is fixedly arranged on the inner wall of the shell.

Further, the top of casing is equipped with the recess, and the bearing setting is in the recess.

Further, the bottom of casing still is equipped with the connecting portion that are used for connecting device, and connecting portion connecting device's connected mode is: one of threaded connection, interference fit, clamping, adhesion and magnetic attraction.

Further, the magnet is a permanent magnet or an electromagnet.

The utility model discloses technical scheme has following advantage and beneficial effect at least: the utility model discloses in, utilize the wind vane to drive magnet and code wheel and rotate, utilize the data on the electronic measurement component collection code wheel thereby realize the real-time transmission of data; furthermore, when the magnet on the shaft rotates, the induced current is generated in the iron ring installed at the same height, and the induced current in the iron ring generates a magnetic field with the polarity opposite to that of the magnet to block the rotation of the magnet. Thereby achieving the effect of reducing the inertia of the wind vane; the wind direction measurement precision is further improved, the timeliness is guaranteed, and the power generation efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.

Fig. 1 is a schematic structural view of a mechanical wind direction sensor with magnetic damping effect according to the present invention;

icon: 1-vane, 2-shell, 3-bearing, 4-iron ring, 5-magnet, 6-code disc, 7-electronic measuring part, 8-rotating shaft and 9-groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Examples

As shown in fig. 1, a magnetic damping effect mechanical wind direction sensor comprises a wind vane 1, a shell 2, a bearing 3, a magnet 5 arranged in the shell 2, an iron ring 4, a code disc 6 and an electronic measuring component 7; specifically, the shell 2 is made of a non-metal material; the wind vane 1, the bearing 3, the magnet 5 and the code wheel 6 are arranged with a rotating shaft 8 and connected through the rotating shaft 8, the magnet 5 and the code wheel 6 are driven to rotate together by utilizing the windward side of the wind vane 1, and specifically, the wind vane 1, the bearing 3, the magnet 5, the code wheel 6 and the electronic measuring part 7 are sequentially arranged from top to bottom; certainly, the setting is not the only setting, and the reason for setting from top to bottom is that the conventional wind generating set is all standing on the ground, so that a wind direction sensor needs to be installed on the wind generating set, and the wind vane 1 can be arranged at the top in order to ensure the effective windward side; conversely, if the wind direction sensor is arranged on the aircraft, the wind vane 1 is not necessarily arranged on the top, but can be arranged on the bottom; it should be noted that the wind vane 1 is a general wind vane 1, that is, the wind vane 1 has a large tail providing a large windward side generating a force opposite to the incoming wind direction, F ═ PdS ═ P ═ pressure ds ═ windward infinitesimal, and S has a maximum value (that is, the maximum windward area of the wind vane 1).

The magnet 5 and the coded disc 6 are rotationally fixed in the shell 2 through the bearing 3, namely the coded disc 6 and the magnet 5 are not connected in the shell 2, the only connected part is the rotating shaft 8 and rotates through the rotating shaft 8, in addition, the top of the shell 2 is provided with the groove 9, the bearing 3 is arranged in the groove 9, and the weight of the magnet 5 and the coded disc 6 is borne by the groove 9, and meanwhile, the groove 9 is formed by deformation of the shell 2, so the strength is high, and the whole service life of the equipment is prolonged; the iron ring 4 is fixedly arranged in the shell 2 and sleeved on the circumferential side of the magnet 5, and further, the shell 2 is a rotating body, and the rotating shaft 8 is consistent with the rotating shaft 8 of the magnet 5; the outside of hoop 4 is fixed to be set up on the inner wall of casing 2, and the stationary plane is 360 arc sides, and increase strength improves the life-span.

The electronic measuring component 7 is arranged on one side of the coded disc 6, which is far away from the rotating shaft 8, and is used for collecting data of the coded disc 6; specifically, the electronic measurement component 7 includes a circuit and a plurality of sensors, and is mainly responsible for collecting data of the code wheel 6, and the collection mode is the existing technical scheme on the market, such as: the contact encoder is composed of a code wheel 6, an electric brush and a circuit; or the photoelectric encoder coded disc 6 is composed of a coded disc 6 (a grating disc) and a photoelectric detection device; any method may be used as long as the rotation angle can be measured.

In addition, in this embodiment, the bottom of the housing 2 is further provided with a connecting portion for connecting a device, and the connecting portion connects the device in a manner that: one of threaded connection, interference fit, clamping, adhesion and magnetic attraction.

The working process of the embodiment is as follows: when the wind direction sensor works, the shell is fixed, and the coded disc 6 and the magnet 5 which are fixed on the shaft are driven to rotate by the rotation deviation angle of the wind vane 1; at the moment, the circuit part acquires and processes the obtained data; meanwhile, when the magnet 5 on the shaft rotates, induced current is generated in the iron ring 4 arranged at the same height, and the induced current in the iron ring 4 generates a magnetic field with the polarity opposite to that of the magnet 5 to block the rotation of the magnet 5; thereby achieving the effect of reducing the inertia of the wind vane 1.

Finally, it should be emphasized that, in the present embodiment, the magnet 5 is a permanent magnet or an electromagnet; in addition, for the embodiment, if solar energy or a built-in power supply is adopted, a wireless transmission technical scheme can be integrated in the shell 2 to assist data transmission; the above expanded technical solutions are all technical solutions that can be realized in the market at the present stage, and do not need to pay creative mental labor, so in the present embodiment, they are not explained at all.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A magnetic damping effect mechanical wind direction sensor, characterized by: including wind vane (1), magnet (5), hoop (4), code wheel (6) and electron measurement element (7), wind vane (1) drives magnet (5) and code wheel (6) and rotates, hoop (4) cover is located the ring week side of magnet (5), electron measurement element (7) are used for gathering the data of code wheel (6).

2. The magnetic damping effect mechanical wind direction sensor of claim 1, wherein: the device also comprises a shell (2) and a bearing (3); the magnet (5), the iron ring (4), the code disc (6) and the electronic measuring component (7) are arranged in the shell (2); wind vane (1), bearing (3), magnet (5) and code wheel (6) set up with rotation axis (8) and are connected through a rotation axis (8), magnet (5) and code wheel (6) are fixed through bearing (3) rotation in the inside of casing (2), hoop (4) are fixed to be set up inside casing (2), and electron measurement component (7) set up one side that rotation axis (8) were kept away from in code wheel (6).

3. A mechanical wind direction sensor of magnetic damping effect according to claim 2, characterized in that said wind vane (1), bearing (3), magnet (5), code disc (6) electronic measuring means (7) are arranged in sequence from top to bottom.

4. A magnetic damping effect mechanical wind direction sensor according to claim 3, characterized in that the housing (2) is a rotating body and the rotation axis coincides with the rotation axis of the magnet (5); the outer side of the iron ring (4) is fixedly arranged on the inner wall of the shell (2).

5. A magnetic damping effect mechanical wind direction sensor according to claim 4, characterized in that the top of the housing (2) is provided with a groove (9), the bearing (3) being arranged in the groove (9).

6. A mechanical wind direction sensor with magnetic damping effect according to claim 5, characterized in that the bottom of the housing (2) is further provided with a connection part for connecting equipment, and the connection part is connected with the equipment in a way that: one of threaded connection, interference fit, clamping, sticking and magnetic attraction.

7. A magnetic damping effect mechanical wind direction sensor according to claim 1, characterized in that the magnet (5) is a permanent magnet or an electromagnet.

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