CN205593542U

CN205593542U - Hall angle sensor

Info

Publication number: CN205593542U
Application number: CN201620417395.XU
Authority: CN
Inventors: 段旭忠
Original assignee: 段旭忠
Current assignee: FUDING Zhonglian Machinery Parts Co., Ltd
Priority date: 2016-05-10
Filing date: 2016-05-10
Publication date: 2016-09-21
Anticipated expiration: 2026-05-10

Abstract

The utility model provides a hall angle sensor, including hall chip and barrel -shaped sensor shell, there are mount pad and plastic -sealed body in sensor bottom board both sides rigid coupling respectively, be equipped with silicon steel sheet group and hall chip in the plastic -sealed body, the hall stitch passes silicon steel sheet group and printed circuit board connects, printed circuit board links to each other with waterproof connector stitch, the cover is equipped with and winds plastic -sealed body pivoted magnetic ring rotor on the plastic -sealed body, the one end cover that the plastic -sealed body was kept away from to the magnetic ring rotor is equipped with the shaft type positioning seat, there are arc magnet and shield ring in the magnetic ring rotor, the one end that the plastic -sealed body was kept away from to the magnetic ring rotor has throttle shaft draw -in groove hole, this throttle shaft draw -in groove is downthehole to have the draw -in groove fixed plate, in using, throttle shaft's the flat side body stretches into in the draw -in groove fixed plate, the flat side of the draw -in groove fixed plate chucking body, the zero clearance linkage. This sensor adopts the non -contact measurement mode to measure throttle shaft's angle, has solved the problem of installing the poor stability that the magnetic ring brought owing to wearing and tearing with on the valve body, has prolonged the life of sensor.

Description

A kind of Hall angular transducer

Technical field

This utility model belongs to motorcycle engine electric spray manufacturing technology field, relate to a kind of throttle angle sensor in electric injection system throttle valve body, it is specifically related to a kind of sensor for throttle plate pin angular surveying, uses hall principle to measure the rotational angle of throttle plate pin in throttle valve body.

Background technology

Along with stricter environmental regulation is implemented, existing motorcycle needs to assemble electric injection system to meet emission request, and needs the sensor of throttle plate pin rotational angle in detection choke valve in electric injection system.At present, it is that contact rheostat is contained in air throttle axle head, measure the angle that throttle plate pin is residing in choke valve, owing to resistor disc uses brush contact mode, brush needs to contact with resistance, thus can produce friction thus have influence on its service life, additionally dust impurity etc. also can affect stability and the certainty of measurement of rheostat, along with popularizing of Hall technology, the throttle valve body of some EFI have employed contactless Hall angular transducer, but owing to magnet ring is mounted on throttle plate pin, abrasion along with throttle plate pin, cause the axial displacement of throttle plate pin, have influence on the induction precision of Hall chip, then the certainty of measurement of throttle plate pin angle is affected, and split-type design makes the controllability of magnet ring and Hall element be deteriorated.

Summary of the invention

The purpose of this utility model is to provide and a kind of uses Hall element to detect the sensor of throttle plate pin angle, it is ensured that while throttle plate pin angle-measurement accuracy, it is ensured that controllability.

For achieving the above object, this utility model be the technical scheme is that a kind of Hall angular transducer, including Hall chip, this sensor also includes barrel-shaped sensor shell, the plate outer side of sensor shell is connected with the mounting seat of tubular, one end of mounting seat is affixed with base plate, the other end of base plate is provided with printed circuit board (PCB), inside base plate, plastic packaging is by the stalloy group being made up of multilamellar stalloy, the plastic packaging material of stalloy group and stalloy group outer wrapping constitutes plastic-sealed body, it is provided with Hall chip in stalloy group, Hall stitch on Hall chip sequentially passes through stalloy group and base plate, connect with printed circuit board (PCB), sensor shell sidewall is provided with waterproof connector, the stitch of waterproof connector connects with printed circuit board (PCB)；The magnet ring rotor that can rotate it is set with around plastic-sealed body on plastic-sealed body, magnet ring rotor is positioned at sensor shell, the shading ring of arc-shaped magnet and arc it is provided with in magnet ring rotor, magnet ring rotor is provided with square throttle plate pin card slotted eye away from one end of plastic-sealed body, is provided with draw-in groove fixed plate in this throttle plate pin card slotted eye；Magnet ring rotor is set with the positioning seat of tubular away from one end of plastic-sealed body；

Described draw-in groove fixed plate includes installing plate, a sidewall of installing plate is connected with the first clamp, another sidewall of installing plate is connected with the second clamp, and on installing plate, two sidewalls of affixed clamp are oppositely arranged, and the first clamp and the second clamp shift to install；One end of first clamp and one end of the second clamp are all smoothly connected with installing plate；During use, the flat-square shaped on throttle plate pin top stretches between the first clamp and the second clamp, the first clamp and the second clamp clamping flat-square shaped.

Hall chip is sealed in this utility model Hall angular transducer, arc-shaped magnet is incorporated in sensor outer housing, the contact little, lightweight, contactless of sound construction, volume, power consumption are little, detection, debugging are conveniently, better reliability, waterproof and dustproof, anti-vibration, oil resistant are corrosion-resistant and measure good stability.This sensor is installed on throttle plate pin one end in choke valve, uses non-contact measurement to measure the angle of throttle plate pin, solve owing to wearing and tearing and the problem of the poor stability that installation magnet ring is brought on valve body, extend the service life of sensor.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of a kind of embodiment of this utility model Hall element.

Fig. 2 is the left view of Fig. 1.

Fig. 3 be Fig. 1 take figure apart.

Fig. 4 is the schematic diagram of this utility model Hall element middle magnetic ring rotor.

Fig. 5 is the schematic diagram of draw-in groove fixed plate in this utility model Hall element.

Fig. 6 is the left view of Fig. 5.

Fig. 7 is the use state diagram of this utility model Hall element.

Fig. 8 is the right view of Fig. 7.

In figure: 1. sensor shell, 2. waterproof connector, 3. sealing ring, 4. positioning seat, 5. Hall chip, 6. stalloy group, 7. end cap, 8. arc-shaped magnet, 9. magnet ring rotor, 10. arc shading ring, 11. Hall stitch, 12. printed circuit board (PCB)s, 13. draw-in groove fixed plates, 14. throttle plate pin draw-in grooves, 15. valve bodies, 16. throttle plate pins, 17. sensor screws, 18. installing plates, 19. first clamps, 20. second clamps, 21. first projections, 22. second projections, 23. base plates, 24. mounting seats, 25. plastic-sealed bodies, 26. swivel bases, 27. armature spindles, 28. connect post, 29. connecting holes, 30. flat-square shapeds, 31. springs.

Detailed description of the invention

With detailed description of the invention, this utility model is described in detail below in conjunction with the accompanying drawings.

Such as Fig. 1, shown in Fig. 2 and Fig. 3, this utility model Hall element one embodiment, including barrel-shaped sensor shell 1, the base plate 23 of sensor shell 1 is provided with through hole, the mounting seat 24 of tubular it is connected with outside base plate 23, one end of mounting seat 24 is affixed with base plate 23, along the direction away from sensor shell 1, the other end of base plate 23 is sequentially provided with printed circuit board (PCB) 12 and end cap 7, inside base plate 23, plastic packaging is by the stalloy group 6 being made up of multilamellar stalloy, the plastic packaging material of stalloy group 6 and stalloy group 6 outer wrapping constitutes plastic-sealed body 25, it is provided with installing hole in stalloy group 6, Hall chip 5 it is provided with in this installing hole, Hall stitch 11 on Hall chip 5 sequentially passes through the installing hole in stalloy group 6 and the through hole on base plate 23, connect with printed circuit board (PCB) 12；Space is had between the inwall of plastic-sealed body 25 sidewall and sensor shell 1；Structure magnet ring rotor 9 as shown in Figure 4 it is provided with in sensor shell 1, magnet ring rotor 9 includes barrel-shaped swivel base 26, the bottom of swivel base 26 is connected with the armature spindle 27 of tubular, and swivel base 26 is provided with two connection posts 28 towards the end face of armature spindle 27, connects in the endoporus that post 28 stretches into armature spindle 27；Swivel base 26 is set on plastic-sealed body 25, and the medial wall of swivel base 26 is provided with mounting groove, and this mounting groove is interior, be sequentially provided with the shading ring 10 of arc-shaped magnet 8 and arc along the direction away from plastic-sealed body 25；The endoporus of armature spindle 27 is square throttle plate pin card slotted eye, this throttle plate pin card slotted eye is respectively equipped with a groove on one group of relative sidewall, armature spindle 27 endoporus is provided with structure draw-in groove fixed plate 13 as shown in Figure 5 and Figure 6, draw-in groove fixed plate 13 includes installing plate 18, installing plate 18 is provided with two connecting holes 29, it is connected with the first clamp 19 on one sidewall of installing plate 18, the second clamp 20 it is connected with on another sidewall of installing plate 18, on installing plate 18, two sidewalls of affixed clamp are oppositely arranged, and the first clamp 19 and the second clamp 20 shift to install；One end of first clamp 19 and one end of the second clamp 20 are all affixed with installing plate 18, and are smoothly connected；The other end of the first clamp 19 is provided with the first projection 21, first projection 21 is positioned at the first clamp 19 towards on the end face of the second clamp 20, the other end of the second clamp 20 is provided with the second projection 22, second projection 22 is positioned at the second clamp 20 towards on the end face of the first clamp 19, first clamp 19 and the second clamp 20 lay respectively in two grooves on armature spindle 27 endoporus sidewall, throttle plate pin draw-in groove 14 is formed between first clamp 19 and the second clamp 20, connect post 28 and penetrate in connecting hole 29, by connecting post 28, draw-in groove fixed plate 13 is riveted with magnet ring rotor 9；Being set with the positioning seat 4 of tubular on armature spindle 27, positioning seat 4 is between armature spindle 27 and sensor shell 1, and positioning seat 4 is provided with sealing ring 3, and sealing ring 3 is positioned at outside sensor shell 1；Magnet ring rotor 9 can rotate along positioning seat 4 endoporus.

The sidewall of sensor shell 1 is provided with waterproof connector 2, and the stitch of waterproof connector 2 connects with printed circuit board (PCB) 12.

When using this utility model Hall element: be provided with one end pocketed springs 31 of flat-square shaped 30 at throttle plate pin 16, and make one end of spring 31 contact with throttle plate pin jump ring；Then this Hall element is arranged on valve body 15, by sensor screw 17, sensor shell 1 is fixed on valve body 15, flat-square shaped 30 on throttle valve axle 16 stretches in the throttle plate pin draw-in groove 14 of the first clamp 19 and the formation of the second clamp 20, first projection 21 and the second projection 22 contact with two sidewalls of flat-square shaped 30 respectively, and clamping flat-square shaped 30, as shown in Figure 6 and Figure 7, now another end face of spring 31 contacts towards the end face of valve body 15 with magnet ring rotor 9, and compresses；Spring 31 compresses magnet ring rotor 9, makes swivel base 26 be in close contact towards the end face of plastic-sealed body 25 with plastic-sealed body 25, very close to each other, and has gap between magnet ring rotor 9 and base plate 23.When throttle plate pin 16 rotates, flat-square shaped 30 drives draw-in groove fixed plate 13 concomitant rotation, draw-in groove fixed plate 13 drives magnet ring rotor 9 to rotate, magnet ring rotor 9 is when stalloy group 6 rotates, Hall chip 5 detects signal, this signal is delivered to by the circuit on printed circuit board (PCB) 12 stitch of waterproof connector 2, then is passed the signal along to ECU process by this stitch, the angle signal of throttle plate pin is provided for ECU, so that the work that electric injection system can be stable.

In this utility model Hall element work process, the first clamp 19 in draw-in groove fixed plate 13 and the second clamp 20 clamp the flat-square shaped 30 on throttle plate pin 16 top, eliminate the flat body side 30 running clearance in throttle plate pin draw-in groove 14.When throttle plate pin 16 and magnet ring rotor 9 link, flat body side 30 is pressed on the sidewall of throttle plate pin draw-in groove 14 by the first clamp 19 and the second clamp 20, ensure gapless driving between throttle plate pin 16 and draw-in groove fixed plate 13, it is to avoid throttle plate pin 16 weares and teares, it is ensured that the certainty of measurement of throttle plate pin 16 angle.

Claims

null1. a Hall angular transducer，Including Hall chip (5)，It is characterized in that，This sensor also includes barrel-shaped sensor shell (1)，Base plate (23) outside of sensor shell (1) is connected with the mounting seat (24) of tubular，One end of mounting seat (24) is affixed with base plate (23)，The other end of base plate (23) is provided with printed circuit board (PCB) (12)，Base plate (23) inner side plastic packaging is by the stalloy group (6) being made up of multilamellar stalloy，The plastic packaging material of stalloy group (6) and stalloy group (6) outer wrapping constitutes plastic-sealed body (25)，Hall chip (5) it is provided with in stalloy group (6)，Hall stitch (11) on Hall chip (5) sequentially passes through stalloy group (6) and base plate (23)，Connect with printed circuit board (PCB) (12)，Sensor shell (1) sidewall is provided with waterproof connector (2)，The stitch of waterproof connector (2) connects with printed circuit board (PCB) (12)；The magnet ring rotor (9) that can rotate it is set with around plastic-sealed body (25) on plastic-sealed body (25), magnet ring rotor (9) is positioned at sensor shell (1), the shading ring (10) of arc-shaped magnet (8) and arc it is provided with in magnet ring rotor (9), magnet ring rotor (9) is provided with square throttle plate pin card slotted eye away from one end of plastic-sealed body (25), is provided with draw-in groove fixed plate (13) in this throttle plate pin card slotted eye；Magnet ring rotor (9) is set with the positioning seat (4) of tubular away from one end of plastic-sealed body (25)；

Described draw-in groove fixed plate (13) includes installing plate (18), it is connected with the first clamp (19) on one sidewall of installing plate (18), the second clamp (20) it is connected with on another sidewall of installing plate (18), two sidewalls of the upper affixed clamp of installing plate (18) are oppositely arranged, and the first clamp (19) and the second clamp (20) shift to install；One end of first clamp (19) and one end of the second clamp (20) are all smoothly connected with installing plate (18)；During use, the flat-square shaped (30) on throttle plate pin (16) top stretches between the first clamp (19) and the second clamp (20), the first clamp (19) and the second clamp (20) clamping flat-square shaped (30).
Hall angular transducer the most according to claim 1, it is characterized in that, described magnet ring rotor (9) includes barrel-shaped swivel base (26), the bottom of swivel base (26) is connected with the armature spindle (27) of tubular, swivel base (26) is provided with two connection posts (28) towards the end face of armature spindle (27), connects in the endoporus that post (28) stretches into armature spindle (27)；Swivel base (26) is set on plastic-sealed body (25), and the medial wall of swivel base (26) is provided with mounting groove, and this mounting groove is interior, be sequentially provided with the shading ring (10) of arc-shaped magnet (8) and arc along the direction away from plastic-sealed body (25)；The endoporus of armature spindle (27) is square opening, is respectively equipped with a groove, is provided with draw-in groove fixed plate (13) in armature spindle (27) endoporus in this square opening on one group of relative sidewall, and the installing plate (18) in draw-in groove fixed plate (13) is with to be connected post (28) affixed.
Hall angular transducer the most according to claim 2, it is characterized in that, described installing plate (18) is provided with the connecting hole (29) that quantity is identical with connecting post (28) quantity, connect post (28) and penetrate in connecting hole (29), by connecting post (28), draw-in groove fixed plate (13) is riveted with magnet ring rotor (9).