WO2013097735A1

WO2013097735A1 - Double-station hall sensor

Info

Publication number: WO2013097735A1
Application number: PCT/CN2012/087603
Authority: WO
Inventors: 王欢
Original assignee: 无锡尚格工业设计有限公司
Priority date: 2011-12-29
Filing date: 2012-12-27
Publication date: 2013-07-04
Also published as: CN202382897U

Abstract

A double-station Hall sensor comprising a rotating wheel (3) and a Hall signal central processor disposed outside of the rotating wheel (3) or on the rotating wheel (3). Disposed on the rotating wheel (3) are radial Hall sensors (52, 812). The radial Hall sensors (52, 812) are connected to the Hall signal central processor. The hall signal central processor is also electrically connected with axial Hall sensors (51, 71) disposed on the rotating wheel (3). Magnetic induction electric signals inputted by the radial Hall sensors (52, 812) and the axial Hall sensors (51, 71) are processed by the Hall signal central processor, and a rotating wheel boosting rotation signal is outputted. Electronic signals acquired from the double-station Hall sensor are processed by the Hall signal central processor, thereby enabling the output of a corresponding signal that is human-oriented and in accordance with the will of the rider.

Description

Double station Hall sensor

技术领域Technical field

The present invention relates to the field of vehicle electric power transmission, and more particularly to a structure of a vehicle electric power assist sensor.

背景技术Background technique

A part of the existing torque sensor is mounted on the central axle of the electric bicycle, and mainly includes: a crank, an active component fixed to the crank, and a passive component disposed in parallel with the active component, the passive component and the active component being elastic Connected and relatively rotatable, the active component and the passive component are respectively provided with a plurality of active magnetic components and a plurality of passive magnetic components, and the torque sensor further comprises a Hall element induced with two sets of magnetic components to collect signals, two Halls The components are arranged on the PCB; the passive components are especially the toothed discs of the electric bicycle. The torque sensors collect the magnetic flux changes perceived by the Hall elements on the active magnetic components and the passive magnetic components when the toothed disc rotates. The frequency signal is used to determine the state of force applied to the vehicle, and the magnetic induction station corresponds to the signal collected by the rotation of the toothed disc; the signal is sent by the central processing unit, and the command is issued by the central processor, so often with the rider There is a big gap in the will; a 'torque sensor' disclosed in the Chinese patent CN102221432A is in the above torque sensor. On the basis of strengthening the setting of signal acquisition intensity, but because the station setting of the signal acquisition is slightly single, the application has certain limitations, and its structure is relatively complex, so it is necessary to innovate on this basis. To meet the market demand for new torque sensors.

发明内容Summary of the invention

One of the objects of the present invention is to provide a dual-station Hall sensor that takes a dual-station acquisition magnetic induction signal and simulates a humanized output of instructions to assist the vehicle.

Another object of the present invention is to provide a standardized dual-station Hall sensor for vehicle assistance that is suitable for use in a variety of sensing and driving functions.

The technical solution of the present invention is implemented as follows:

A double-station Hall sensor is provided, which comprises at least one toothed disc, which further comprises a Hall signal central processor disposed outside the toothed disc or on the toothed disc, and a diameter set on the outer side of the toothed disc or on the toothed disc a magnetic induction electric signal input to the Hall sensor and the axial Hall sensor is processed by the Hall signal central processing unit to output a reel assist rotation signal; wherein the axial Hall sensor comprises sequentially by Hall The movable seat, the central cavity of the toothed disc, and the hollow cavity formed by the claw crank are disposed with a movable torsion axial converter assembly with a ring-shaped magnetic steel; the toothed disc drives the claw crank and the fixed cover to rotate relative to each other; The movable torsion axial converter assembly is axially moved; the position of the toroidal magnet is adapted to the position of the axially distributed Hall element on the Hall inductive mount.

The Hall sensor as described above is characterized in that: the claw crank is provided with a middle shaft transition annular sleeve, and the middle shaft transition annular sleeve is provided with a plurality of magnetic steel positioning holes distributed along the circumference.

The Hall sensor as described above is characterized in that the position of the magnetic steel in the magnetic steel positioning hole is adapted to the position of the radially distributed Hall element on the Hall sensing seat.

a Hall sensor as described above, characterized in that: the toothed disc is further provided with a plurality of spring mounting holes equally distributed along the circumference; and a positioning seat is mounted on the sleeve of the central shaft connected to the toothed disc; The Hall sensing seat is placed on the positioning seat.

The Hall sensor as described above, wherein the claw mounting hole and the fixing cover are fixedly coupled to the spring mounting hole, and the common connecting end of the claw crank and the fixing cover connected integrally is defined by the spring Move inside the mounting hole.

The Hall sensor as described above, characterized in that: the movable torsion axial converter assembly is composed of an elastic returning element and a ring-shaped magnetic steel matched with the movable torsion axial converter, and the elastic resetting element is positioned at the movable After the torque is applied to the axial converter, it fits into the annular groove of the claw crank.

After adopting this technical solution, the following technical effects can be achieved:

Since the present invention uses the duplex station line signal as the analysis source, the Hall signal central processor needs to perform the comparison analysis on the signal collected by the duplex station, and according to different driving states of the vehicle, The output assist signal is correspondingly output. For example, when the vehicle is started, the rider pushes a wheel to apply a rotating wheel, and obtains a magnetic induction stroke through a horizontal displacement of a torsion axial converter connected to the rotating wheel, through a radial sensing ring connected to the rotating wheel. The central axis connected to the inner wheel rotates to obtain a magnetic induction circumferential angular displacement variable, so that the electromagnetic induction electric signal obtained by the axial Hall sensor and the radial Hall sensor is transmitted to the Hall signal central processor, and the Hall signal center After the processor receives these two signals, it needs to meet certain conditions to output the boosting signal. That is, when only the horizontal displacement electrical signal is collected, if the angular displacement variable electrical signal is not collected, it still does not assist; only two signals are collected simultaneously. When the assist signal is output, this is suitable for the situation where the rider sometimes inadvertently pushes the pedal but does not want to output the boost signal when the vehicle is stationary; when the vehicle is running at a constant speed, the movable torque axial converter is returned, and the horizontal displacement electric signal is Cutoff, the angular displacement variable electric signal is cut off, and the assist is stopped. At this time, the preset program can also be used to determine to stop when the speed of the vehicle reaches a certain value. When the vehicle is going uphill, the vehicle is relatively decelerated, and the rider pedals the force. At this time, the above two signals are collected at the same time. After the Hall signal is analyzed by the central processor, the boost signal is given. When the vehicle goes downhill, the vehicle accelerates. The Hall signal central processor can collect the angular displacement variable signal, but the horizontal displacement electric signal is cut off, and the power assist signal is still not output; after the above setting, the Hall central processor can be humanized regardless of the motion state of the vehicle. The corresponding signal is output to meet the rider's willingness to ride.

The invention can process the electric signal obtained by the double-station by the Hall signal central processing unit, and can output the corresponding signal in a humanized manner to meet the rider's willingness to ride, and realize the humanization of the existing Hall sensor. Intelligent operation provides a practical equipment.

附图说明DRAWINGS

Figure 1 is a structural view of the present invention;

Figure 2 is an exploded perspective view of the embodiment of Figure 1.

具体实施方式detailed description

The present invention will be further described below with reference to the accompanying drawings, but is not limited to the following embodiments:

Referring to FIG. 1 and FIG. 2, a dual-station Hall sensor is provided. The reel is a toothed disc 3 (or a sprocket 3), and includes a Hall signal central processor disposed outside a spur disk 3. Mounted on the toothed disc 3 is a radial Hall sensor consisting of a radial magnet 822 and a radial Hall element 52, the radial Hall sensor being electrically connected to the Hall signal central processor, The Hall signal central processor is also electrically connected to an axial Hall sensor mounted on the toothed disc 3 and composed of an axial magnetic steel 71 and an axial Hall element 51; the radial Hall sensor and the shaft The magnetic induction electric signal input to the Hall sensor is processed by the Hall signal central processing unit to output a rotation assist rotation signal.

Referring to FIG. 1, a double-station Hall sensor is provided, including a center shaft 1, a sleeve 2 for accommodating the center shaft 1, and a sprocket wheel 3 fixed to the center shaft 1, and the sprocket wheel 3 is further provided with an edge. a plurality of spring mounting holes 31 equally distributed in a circle; a positioning seat 4 is mounted on the sleeve 2; a Hall sensing seat 5 is placed on the positioning seat 4, and the Hall sensing seat 5 is provided with an axial direction And a radially distributed

Hall element

51, 52, the center hole edge of the toothed disc 3 is fixedly connected to a toothed disc thrust base 6, by which the toothed disc 3 is fixed on the center shaft 1 And a claw-shaped crank 8 and a fixing cover 9 are further disposed. The claw-shaped crank 8 and the fixing cover 9 are fixedly connected at the spring mounting hole 31, and are connected to the common connecting end of the integrated claw-shaped crank 8 and the fixed cover 9. The movement is defined in the spring mounting hole 31. The claw crank 8 is provided with a middle shaft transition annular sleeve 81. The middle shaft transition annular sleeve 81 is provided with a plurality of magnetic steel positioning holes 811 distributed along the circumference; The hollow cavity formed by the Hall sensor seat 5 and the center hole of the toothed disc 3 to the claw crank 8 is provided with a movable torque shaft with a ring magnet 71 To the converter assembly; the toothed disc 3 drives the claw crank 8 and the fixed cover 9 to rotate relative to each other to cause the movable torsion axial converter assembly to move axially; the position of the annular magnetic steel 71 and the Hall sensing seat 5 The position of the axially distributed Hall element 51 is adapted, the position of the magnetic steel 812 in the magnet positioning hole 811 being adapted to the position of the radially distributed Hall element 52 on the Hall inductive mount 5; The urging of the vehicle is controlled by the axial and radial electrical signals collected by the

Hall elements

51, 52.

The movable torsion axial converter assembly is composed of an elastic returning element 10 and a toroidal magnet 71 that cooperate with the movable torsion axial converter 7, and the elastic returning element 10 is positioned on the movable torsion axial converter 7 Adapted to the annular groove 82 of the claw crank 8. The elastic return element 10 is a wave spring ring.

The detailed description of the present invention has been shown in the foregoing, and the invention may be modified and changed without departing from the scope of the invention; The illustration of the nature is not a limitation of the present invention, and the dual-station Hall sensor having the above technical features falls within the scope of this patent.

Claims

A double-station Hall sensor comprising at least one toothed disc, further comprising a Hall signal central processor disposed outside the toothed disc or on the toothed disc, disposed outside the toothed disc or on the toothed disc The magnetic induction electric signals input by the radial Hall sensor and the axial Hall sensor are processed by the Hall signal central processing unit to output a reel assist rotation signal; wherein the axial Hall sensor comprises sequentially a hollow cavity formed by the center hole of the toothed disc to the claw crank, and a movable torsion axial converter assembly with a ring-shaped magnetic steel; the toothed disc driving the claw crank and the fixed cover are opposite The movable torsion axial converter assembly is axially moved when rotated; the position of the annular magnetic steel is adapted to the position of the axially distributed Hall element on the Hall inductive mount.

2. The Hall sensor according to claim 1, wherein the claw crank is provided with a middle shaft transition ring sleeve, and the middle shaft transition ring sleeve is provided with a plurality of magnetic steel positions distributed along the circumference. hole.

3. A Hall sensor according to claim 2 wherein the position of the magnetic steel within the magnetic steel locating aperture is adapted to the position of the radially distributed Hall element on the Hall pedestal.

4. The Hall sensor according to claim 1, wherein said sprocket wheel is further provided with a plurality of spring mounting holes equally distributed along the circumference; and a sleeve of the central shaft connected to said sprocket wheel A positioning seat is mounted; the Hall sensing seat is placed on the positioning seat.

The Hall sensor according to claim 4, wherein the claw mounting hole and the fixing cover are fixedly coupled to the spring mounting hole, and the common connecting end of the claw crank and the fixing cover are integrally connected. It is defined to move within the spring mounting hole.

6. The Hall sensor of claim 1 wherein said movable torsion axial converter assembly is comprised of an elastic return member coupled to a movable torsion axial converter, and a toroidal magnetic steel to resiliently reset After the component is positioned on the movable torsion axial converter, it fits into the annular groove of the claw crank.