Wind speed measuring device

Abstract

The utility model provides a wind speed measuring device, relates to the technical field of wind speed measurement, and solves the problems that the applicable range of a wind speed measurer is limited to a certain extent and is very easily influenced by external factors because the wind speed measurer needs assistance of external equipment and power supply and cooperation of electronic components during measurement. A protective shell is arranged at the top of the cylinder, a driving shaft is arranged in the protective shell, fan blades are arranged at one end of the driving shaft, an energy supply measuring assembly is arranged in the protective shell, and the energy supply measuring assembly is driven by the driving shaft to rotate. Through the energy supply measurement assembly arranged in the device, the wind speed can be measured under the condition that external functions are needed, and excessive external influences on wind speed measurement due to the use of excessive external electronic components are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wind speed measurement, in particular to a wind speed measuring device. Background Art

[0002] Wind speed measurement refers to a speed measuring instrument that converts flow velocity signals into electrical signals. It can also measure fluid temperature or density. The principle is to place a thin metal wire (called a hot wire) that is heated by electricity in the airflow. The amount of heat dissipated by the hot wire in the airflow is related to the flow velocity. The heat dissipation causes the temperature of the hot wire to change, causing the resistance to change, and the flow velocity signal is converted into an electrical signal. It has two working modes: ① Constant current mode. The current passing through the hot wire remains unchanged. When the temperature changes, the resistance of the hot wire changes, and thus the voltage at both ends changes, thereby measuring the flow velocity; ② Constant temperature mode. The temperature of the hot wire remains unchanged, such as 150°C, and the flow velocity can be measured according to the current required to be applied. The constant temperature mode is more widely used than the constant current mode.

[0003] However, the existing wind speed measuring devices require too many external devices and power supplies, and the combined use of electronic components limits their scope of application and makes them easily affected by external factors. Utility Model Content

[0004] The utility model aims to provide a wind speed measuring device to solve the problem that the wind speed measuring device needs external equipment, power supply assistance and electronic components to measure, which results in its application scope being limited to a certain extent and is easily affected by external factors.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] The utility model provides a wind speed measuring device, comprising a column, a protective shell is arranged on the top of the column, a driving shaft is arranged inside the protective shell, and a fan blade is arranged at one end of the driving shaft. The utility model is characterized in that an energy supply and measurement component is arranged inside the protective shell, and the energy supply and measurement component is driven to rotate by the driving shaft;

[0007] The energy supply and measurement component includes a copper coil and a permanent magnet. The copper coil is arranged on both sides of the driving shaft, and the permanent magnet is arranged on both sides of the inner wall of the protective shell.

[0008] The copper coils are located on both sides of the drive shaft close to the permanent magnets;

[0009] The copper coil is fixedly connected to the drive shaft.

[0010] Preferably, the protective shell also includes a voltmeter and a display screen. The voltmeter is arranged on one side of the protective shell, and the display screen is connected to the voltmeter via a data cable.

[0011] Preferably, a current conductor is also provided on the copper coil, and the current conductor is in contact with and connected to the copper coil.

[0012] Preferably, the current conductor on the copper coil is electrically connected to the voltmeter via a wire.

[0013] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0014] 1. The fan blades provided in the device are connected to one end of the driving shaft, and when the driving shaft is driven to rotate, the copper coils on both sides thereof will be driven to rotate together, and the copper coil will be located between the two permanent magnets for rotation, and when the copper coil rotates, the magnetic field between the two permanent magnets will be cut, and the current generated by cutting the magnetic field will be introduced into the voltmeter, and the magnitude of the generated current will be obtained through the voltmeter, and the current change on the voltmeter will be transmitted to the display screen through the data line, so that the wind speed data can be obtained through the change of current and voltage. Relying on the power supply measurement component, the wind speed can be measured without external power supply, and the wind speed measurement will not be excessively affected by the use of too many external electronic components. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a side cross-sectional structural schematic diagram of the utility model;

[0018] Icons: cylinder 1, fan blades 101, protective shell 2, drive shaft 201, copper coil 2011, permanent magnet 202, voltmeter 203, display screen 204. DETAILED DESCRIPTION

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] Combine the following Figure 1 to Figure 2 The utility model is described in detail.

[0021] A wind speed measuring device includes a column 1, a protective shell 2 is arranged on the top of the column, a driving shaft 201 is arranged inside the protective shell 2, a fan blade 101 is arranged at one end of the driving shaft 201, and a power supply and measurement component is arranged inside the protective shell 2, and the power supply and measurement component is driven to rotate by the driving shaft 201.

[0022] First, the fan blade 101 is connected to one end of the driving shaft 201, and then movably connected to the protective shell 2 through the driving shaft 201, so that the fan blade 101 is set on one side of the protective shell 2. When the airflow blows onto the fan blade 101, the airflow drives the fan blade 101 to start rotating. When the fan blade 101 rotates, its rotation speed is detected by the internal rotation speed detection device, thereby obtaining the wind speed of the airflow.

[0023] Furthermore, the energy supply measurement component includes a copper coil 2011 and a permanent magnet 202. The copper coil 2011 is arranged on both sides of the driving shaft 201, and the permanent magnet 202 is arranged on both sides of the inner wall of the protective shell 2. The copper coil 2011 is located on both sides of the driving shaft 201 close to the permanent magnet 202. The protective shell 2 also includes a voltmeter 203 and a display screen 204. The voltmeter 203 is arranged on one side of the protective shell 2, and the display screen 204 is connected to the voltmeter 203 through a data cable. A current conductor is also arranged on the copper coil 2011, and the current conductor is in contact with the copper coil 2011. The current conductor on the copper coil 2011 is electrically connected to the voltmeter 203 through a wire, and the copper coil 2011 is fixedly connected to the driving shaft 201.

[0024] When the driving shaft 201 is driven to rotate, the copper coils 2011 on both sides thereof will be driven to rotate together. The copper coil 2011 will be located between the two permanent magnets 202 and rotate. When the copper coil 2011 rotates, the magnetic field between the two permanent magnets 202 will be cut. The current generated by cutting the magnetic field will be introduced into the voltmeter 203, and the magnitude of the generated current will be obtained through the voltmeter 203.

[0025] If the airflow speed is greater, the driving shaft 201 will rotate faster, and the faster the driving shaft 201 rotates, the faster the copper coil 2011 will rotate, so that the speed of cutting the magnetic field increases, increasing the current, thereby causing the voltmeter 203 to change, and the current change on the voltmeter 203 will be transmitted to the display screen 204 through the data line for display, so that the wind speed data can be obtained through the changes in current and voltage.

[0026] The following is a specific implementation process of the utility model. First, the fan blade 101 is connected to one end of the driving shaft 201, and then the driving shaft 201 is movably connected to the protective shell 2, so that the fan blade 101 is set on one side of the protective shell 2. When the airflow blows onto the fan blade 101, the airflow drives the fan blade 101 to start rotating, and when the fan blade 101 rotates, it drives the driving shaft 201 to rotate together. When the driving shaft 201 is driven to rotate, it drives the copper coils 2011 on both sides thereof to rotate together. The copper coil 2011 is located between the two permanent magnets 202 and rotates. When 11 rotates, it will cut the magnetic field between the two permanent magnets 202, and the current generated by cutting the magnetic field will be introduced into the voltmeter 203, and the size of the generated current will be obtained through the voltmeter 203. If the wind speed of the airflow is greater, the rotation speed of the drive shaft 201 will be faster, and the faster the rotation speed of the drive shaft 201 is, the faster the rotation speed of the copper coil 2011 will be driven, so that the speed of cutting the magnetic field increases and the current increases, thereby causing the voltmeter 203 to change, and the current change on the voltmeter 203 will be transmitted to the display screen 204 through the data line for display, so that the wind speed data can be obtained by the change of current and voltage.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wind speed measuring device, comprising a column (1), a protective shell (2) being arranged on the top of the column, a driving shaft (201) being arranged inside the protective shell (2), and a fan blade (101) being arranged at one end of the driving shaft (201), characterized in that: An energy supply and measurement component is arranged inside the protective shell (2), and the energy supply and measurement component is driven to rotate by a driving shaft (201); The energy supply measurement component comprises a copper coil (2011) and a permanent magnet (202), wherein the copper coil (2011) is arranged on both sides of the drive shaft (201), and the permanent magnet (202) is arranged on both sides of the inner wall of the protective shell (2); The copper coil (2011) is located on both sides of the driving shaft (201) close to the permanent magnet (202); The copper coil (2011) is fixedly connected to the driving shaft (201).

2. A wind speed measuring device according to claim 1, characterized in that: The protective shell (2) further comprises a voltmeter (203) and a display screen (204); the voltmeter (203) is arranged on one side of the protective shell (2); and the display screen (204) is connected to the voltmeter (203) via a data line.

3. A wind speed measuring device according to claim 1, characterized in that: The copper coil (2011) is also provided with a current conductor, and the current conductor is in contact with and connected to the copper coil (2011).

4. A wind speed measuring device according to claim 1, characterized in that: The current conductor on the copper coil (2011) is electrically connected to the voltmeter (203) via a wire.

Images