CN102490857A

CN102490857A - Double-station Hall sensor

Info

Publication number: CN102490857A
Application number: CN2011104500120A
Authority: CN
Inventors: 王欢
Original assignee: WUXI SHANGGE INDUSTRIAL DESIGN Co Ltd
Current assignee: WUXI SHANGGE INDUSTRIAL DESIGN Co Ltd
Priority date: 2011-12-29
Filing date: 2011-12-29
Publication date: 2012-06-13

Abstract

The invention discloses a double-station Hall sensor. The double-station Hall sensor at least comprises a rotating wheel and comprises a Hall signal central processing unit which is arranged outside the rotating wheel or on the rotating wheel, wherein a radial Hall sensor is arranged on the rotating wheel and is electrically connected with the Hall signal central processing unit; the Hall signal central processing unit is electrically connected with an axial sensor arranged on the rotating wheel; and a rotating wheel power-assisted rotation signal is outputted after magnetic induction electrical signals inputted by the radial Hall sensor and the axial Hall sensor are processed by the Hall signal central processing unit. After the electrical signals acquired by double stations are processed by the Hall signal central processing unit, a corresponding signal can be outputted in a humanized mode to meet the requirements of riders, and practical equipment is provided for humanization and intellectualization operation of the conventional Hall sensor.

Description

The double Hall element

Technical field

The present invention relates to vehicle electric servodrive field, relate in particular to a kind of structure of vehicle electric assistant sensor.

Background technology

Part in the existing torque sensor is installed on the axis of Electrical Bicycle; It mainly comprises: crank, the driving part that is connected mutually with crank; And the passive components that laterally arranges with driving part; Said passive components is connected with driving part elasticity and can relatively rotates, and is respectively equipped with several active magnetic assemblies and several passive magnetic assemblies on driving part and the passive components, and said torque sensor also comprises the Hall element with two groups of magnetic assembly inductions; With acquired signal, two Hall elements are arranged on the pcb board; Described passive components refers to the fluted disc of Electrical Bicycle especially; The collection of this kind torque sensor be that fluted disc is when rotating; On active magnetic assembly and the passive magnetic assembly by the magnetic flux change frequency signal of Hall element perception; To confirm afterburning state, the signal that its magnetic induction station is gathered corresponding to the fluted disc rotation to vehicle; The instruction that this signal is sent after central process unit is handled, because of command source is single, thereby often there is bigger gap in the will with the bicyclist; Chinese patent CN102221432A disclosed a kind of " torque sensor " has carried out strengthening the setting of acquisition of signal intensity on the basis of above-mentioned torque sensor; But still show slightly single because of the station setting of acquired signal; And make its application have certain limitation; And its structure is relative complex also, thereby is necessary to innovate on this basis, to satisfy the demand of market to novel torsion torque sensor.

Summary of the invention

One of the object of the invention provides a kind of double and obtains the magnetic induction signal, the double Hall element that simulation hommization ground output command goes with booster vehicle.

Another object of the present invention provide a kind of standardized, be applicable to that various sensings and the vehicle booster that drives functional unification use the double Hall element.

Technical scheme of the present invention is achieved in that

A kind of double Hall element is provided; Which comprises at least a runner; It also comprises outside the said runner or the hall signal central process unit that is provided with on the runner; Radially Hall element is installed on the said runner, and said radially Hall element is electrically connected with said hall signal central process unit, it is characterized in that: said hall signal central process unit also is electrically connected the axial sensor of installing on the said runner; Magnetic induction electric signal output runner power-assisted turn signal after the hall signal central process unit is handled by said radially Hall element and axially Hall element input.

After adopting this technical scheme, can reach following technique effect:

Since the present invention adopts be double line concentration signal as the analysis source, therefore, during signal conditioning that the hall signal central process unit is gathered said double, need compare, and according to the different motoring conditions of vehicle, corresponding output power-assisted signal.As when the vehicle launch, the bicyclist drives a runner through foot-operated afterburning; Obtain magnetic induction stroke with runner bonded assembly torsion shaft to the horizontal displacement of conv through one; Radially rotate with runner bonded assembly axis in the inductance loop with the runner bonded assembly and obtain magnetic induction angle in circular segment offset variable through one, thus through axial Hall element and radially the electromagnetic induction electric signal that obtains of Hall element be transferred to the hall signal central process unit, after the hall signal central process unit is accepted these two signals; Need satisfy certain condition and just export the power-assisted signal; When promptly only collecting the horizontal displacement electric signal, if when not collecting the angular displacement variable electric signal, power-assisted not still; Have only when collecting two signals simultaneously, just export the power-assisted signal; It is foot-operated unintentionally sometimes firmly but do not export the situation of power-assisted signal when hoping stationary vehicle to be suitable for the bicyclist like this; When vehicle at the uniform velocity went, movable torsion shaft playbacked to conv, and the horizontal displacement electric signal ends, and the angular displacement variable electric signal ends, and stops power-assisted, at this moment, and also can be through pre-set programs to confirm when running speed reaches certain value, stopping power-assisted; During vehicle driving up, vehicle slows down relatively, and the bicyclist is foot-operated afterburning; At this moment, above-mentioned two signals are all gathered simultaneously, after the analysis of hall signal central process unit, provide the power-assisted signal; During vehicles go down, vehicle quickens, and the hall signal central process unit can be collected the angular displacement variable signal; But, still do not export the power-assisted signal because of the horizontal displacement electric signal ends; Through above setting, no matter vehicle is under which kind of state of kinematic motion, but the Hall central process unit all the corresponding signal of hommization ground output to satisfy bicyclist's reaching of wish of riding.

After the present invention handles the electric signal of said double acquisition through said hall signal central process unit; Can hommization the corresponding signal of ground output to satisfy bicyclist's reaching of wish of riding, realize hommization, intellectualized operation for existing Hall element a kind of practical equipment be provided.

Description of drawings

Fig. 1 is a constructional drawing of the present invention.

Fig. 2 is the example structure exploded drawings of Fig. 1.

The specific embodiment

Below in conjunction with accompanying drawing the present invention is further described, but is not limited to following examples:

Referring to Fig. 1, Fig. 2; A kind of double Hall element is provided; Said runner is a fluted disc 3 (or claiming chain wheel 3); It comprises a fluted disc 3 outer hall signal central process units that are provided with; Be equipped with on the said fluted disc 3 by radial magnet steel 822 and the radially Hall element formed of Hall element 52 radially, said radially Hall element is electrically connected with said hall signal central process unit, said hall signal central process unit also be electrically connected install on the said fluted disc 3, by axial magnet steel 71 and the axial axial Hall element formed of Hall element 51; Magnetic induction electric signal output runner power-assisted turn signal after the hall signal central process unit is handled by said radially Hall element and axially Hall element input.

Referring to Fig. 1, a kind of double Hall element is provided, comprise axis 1, ccontaining axis 1 axle sleeve 2, be fixed on the fluted disc 3 on the axis 1, also be provided with a plurality of spring mounting holes 31 that distribute along branches such as circumference on the said fluted disc 3; One positioning seat 4 is installed on said axle sleeve 2; There is a hall sensing seat 5 to place on the positioning seat 4; Said hall sensing seat 5 is provided with axial and radially-arranged Hall element 51,52; The centre hole edge captive joint one fluted disc thrust pad 6 of said fluted disc 3; Through said fluted disc thrust pad 6 fluted disc 3 is fixed on the axis 1; An one pawl formula crank 8 and a fixed cap 9 are set again, and said pawl formula crank 8 is captiveed joint in spring mounting hole 31 places with fixed cap 9, and the pawl formula crank 8 after connecting as one and the common connection end of fixed cap 9 are limited in the spring mounting hole 31 and move; Said pawl formula crank 8 is provided with axis transition annular cover 81, a plurality of magnet steel knock holees 811 that said axis transition annular cover 81 is provided with along circle distribution; In the hollow reservoir that is constituted by centre hole to the pawl formula crank 8 of hall sensing seat 5, fluted disc 3 in regular turn ccontaining one have annular magnetic steel 71 movable torsion shaft to converter assembly; Said fluted disc 3 drives when pawl formula crank 8 relatively rotates with fixed cap 9 and makes movable torsion shaft move axially to converter assembly; The position of the Hall element 51 of axial distribution is suitable on the position of said annular magnetic steel 71 and the hall sensing seat 5, and the position of radially-arranged Hall element 52 is suitable on the position of the magnet steel 812 in the said magnet steel knock hole 811 and the hall sensing seat 5; Thereby through Hall element 51,52 output axially and the electric signal of radial acquisitions and the reinforcing of control vehicle is rotated.

Said movable torsion shaft to converter assembly by forming with elastic reset member 10, annular magnetic steel 71 that movable torsion shaft cooperates to conv 7; Elastic reset member 10 is positioned at movable torsion shaft after on the conv 7, adapts in the annular groove 82 of pawl formula crank 8.Said elastic reset member 10 is a ripple property bullet circle.

Though preceding text have shown detailed embodiment of the present invention, those skilled in the art revises and changes can carry out part under prerequisite of the present invention; The content of mentioning in the description of preceding text and the accompanying drawing is not to be limitation of the present invention only as illustrative case, has the double Hall element of above-mentioned technical characterictic, all falls into this patent protection domain.

Claims

1. double Hall element; Which comprises at least a runner; It also comprises outside the said runner or the hall signal central process unit that is provided with on the runner; Radially Hall element is installed on the said runner, and said radially Hall element is electrically connected with said hall signal central process unit, it is characterized in that: said hall signal central process unit also is electrically connected the axial sensor of installing on the said runner; Magnetic induction electric signal output runner power-assisted turn signal after the hall signal central process unit is handled by said radially Hall element and axially Hall element input.