CN202420430U - Inductance type rotating angle detection apparatus and electromotor drive type throttle valve controlling means having the same - Google Patents
Inductance type rotating angle detection apparatus and electromotor drive type throttle valve controlling means having the same Download PDFInfo
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- CN202420430U CN202420430U CN2011203229175U CN201120322917U CN202420430U CN 202420430 U CN202420430 U CN 202420430U CN 2011203229175 U CN2011203229175 U CN 2011203229175U CN 201120322917 U CN201120322917 U CN 201120322917U CN 202420430 U CN202420430 U CN 202420430U
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Abstract
The utility model provides an inductive rotating angle detection apparatus and an electromotor drive type throttle valve controlling means having the same. By setting the carrying position of the throttle sensor rotor at a resin-made intermediate gear, the resin is utilized to insolate a metal-made throttle sensor rotor from a metal-made member. By arranging the throttle sensor rotor upon the intermediate gear, the metal-made throttle sensor rotor can be prevented from discharging to other members contacted by the throttle sensor rotor from the throttle sensor substrate circuit, thereby being capable of avoiding the damage to the throttle sensor substrate circuit resulting from current generation.
Description
Technical field
The utility model relates to a kind of inductive rotation angle sensor; The situation that it utilizes the inductance between conductor (excitation conductor portion) and the coil-conductor (reception conductor portion) to change according to both position relation; Detect the position of rotation of rotary body (being rotated detection bodies) with non-contacting mode; Wherein, this conductor (excitation conductor portion) is installed on the rotary body (being rotated detection bodies), and coil-conductor (reception conductor portion) is installed on the fixed component of facing mutually with conductor (housing member).
And; The airflow control that also relates to a kind of direct motor drive formula; It utilizes by electric motor driven throttling valve the aperture area of the air flue of internal combustion engine is carried out electric control, and possesses above-mentioned inductive rotation angle sensor for the anglec of rotation that detects throttling valve.
Background technology
As the background technology in present technique field, TOHKEMY 2010-151567 communique (patent documentation 1) is arranged.
In this communique; Record a kind of inductive rotation angle sensor; It possess through streaming current produce magnetic field excitation conductor portion, be installed in and be rotated on the detection bodies and in the excitation conductor portion of the effect current downflow electric current in the magnetic field of said excitation conductor portion, near the reception conductor portion of said excitation conductor portion configuration; This inductive rotation angle sensor is according to the electric current that flows through said reception conductor portion; The variation inductance that detection changes according to the relative position of the sense of rotation of said excitation conductor portion and said reception conductor portion, thus the said position of rotation that is rotated detection bodies detected, wherein; In said excitation conductor portion, formed fixed part with said excitation conductor portion self, this fixed part is used for the said detection bodies (with reference to claim 1) that is rotated is fixed in this excitation conductor portion.
[patent documentation 1] TOHKEMY 2010-151567 communique
Under the situation that adopts this structure; When applying static noise from the connector side that is provided with at gear cover as housing member; Excitation conductor portion that the sensor of installing on the housing member is provided with on circuit substrate and as be rotated between the excitation conductor portion of installing on the throttle plate pin of detection bodies or reception conductor portion (input conductor) that the sensor of installing on the housing member is provided with on circuit substrate and excitation conductor portion between produce discharge, thereby exist in the problem that destruction is taken place with the microcomputer of the sensor circuit that is provided with on the circuit substrate as the throttle sensor of rotation angle detection apparatus.
The utility model content
The utility model is in order to solve above-mentioned problem, and configuration excitation conductor portion on the neutral gear of ester moulding is to cover excitation conductor and input conductor arrangement on the member with the mode that this excitation conductor is faced mutually.
The utility model provides a kind of rotation angle detection apparatus; The rotation detecting that it detects for the rotation to motor actuator; Have: neutral gear; It slows down to the rotation of output gear on the axle that is fixed on driving motor, and with the turning moment of said motor to the gear transmission of level eventually that is fixed on the turning axle that is rotated detection bodies; Housing member, it covers said output gear, said level gear and said neutral gear eventually, and said rotation detecting possesses: sensor is used circuit substrate, and it is installed on the said housing member; Excitation conductor portion, it is adapted to ring-type at said sensor on circuit substrate, and produces magnetic field through applying of electric current; Excitation conductor portion, itself and said excitation conductor portion keep being configured at interval contactless state, and produce and the said corresponding electric current of position of rotation that is rotated detection bodies through electromagnetic action; Receive conductor portion, it is provided in said sensor with on the circuit substrate, and produces and flow through the corresponding electric current of electric current of said excitation conductor portion, and wherein, said neutral gear forms through ester moulding, and said excitation conductor portion is configured on the said neutral gear.
The utility model provides a kind of airflow control of direct motor drive formula, and it possesses: neutral gear, its rotation to driving motor slow down and to the turning axle transmission of throttling valve; Housing member, it covers the turning axle and the said neutral gear of said driving motor, said throttling valve; Sensor is used circuit substrate, and it is installed on the said housing member; Excitation conductor portion, it is adapted to ring-type at said sensor on circuit substrate, and produces magnetic field through applying of electric current; Excitation conductor portion, itself and said excitation conductor portion keep being configured at interval contactless state, and through the position of rotation corresponding electric current of electromagnetic action generation with said throttling valve; Receive conductor portion, it is provided in said sensor with on the circuit substrate, and produces and flow through the corresponding electric current of electric current of said excitation conductor portion, and wherein, said neutral gear forms through ester moulding, and said excitation conductor portion is configured on the said neutral gear.
The airflow control of also a kind of direct motor drive formula of the utility model, it possesses: neutral gear, its rotation to driving motor slow down and to the turning axle transmission of throttling valve; Housing member, it covers the turning axle and the said neutral gear of said driving motor, said throttling valve; Sensor is used circuit substrate, and it is installed on the said housing member; Excitation conductor portion, it is adapted to ring-type at said sensor on circuit substrate, and produces magnetic field through applying of electric current; Excitation conductor portion, itself and said excitation conductor portion keep being configured at interval contactless state, and through the position of rotation corresponding electric current of electromagnetic action generation with said throttling valve; Receive conductor portion; It is provided in said sensor with on the circuit substrate; And produce and flow through the corresponding electric current of electric current of said excitation conductor portion, wherein, said neutral gear forms through ester moulding; Said excitation conductor portion is configured on the said neutral gear; The hole that the end is arranged that is used to install bolster that the rotation of said neutral gear is supported and on the face of the bolster inserting hole that forms on the said neutral gear by the opposition side of the face that said excitation conductor portion is being installed, has a peristome constitutes, and said bolster movable fit is in said bolster inserting hole, has the bottom to be formed with towards said cover to discharge the through hole that air is used said.
The utility model effect
According to the utility model; Owing to the resin portion of neutral gear as avoiding the discharge path shut-off member that the formation discharge path is protected between excitation conductor portion and sensor are with circuit substrate to play a role, so can obtain the non-contact rotational angle pick-up unit of the high inductance type of a kind of reliability of the influence that can not receive static noise.
Description of drawings
Fig. 1 is the cut-open view of the airflow control of the employed direct motor drive formula of petrol engine car.
Fig. 2 is the critical piece stereographic map of the non-contact type rotation angle detection apparatus of inductance type.
Fig. 3 is the neutral gear of the non-contact type rotation angle detection apparatus of inductance type, the exploded perspective view of electric conductor.
Fig. 4 is the stereographic map of gear cover of the airflow control of the employed direct motor drive formula of petrol engine car.
Fig. 5 is the stereoscopic figure of the airflow control of the employed direct motor drive formula of petrol engine car.
Fig. 6 be the employed direct motor drive formula of petrol engine car airflow control take off the stereographic map behind the gear cover.
Fig. 7 is the vertical view of gear receiving room of the airflow control of the employed direct motor drive formula of petrol engine car.
Fig. 8 is the air throttle district side exploded perspective view of the airflow control of the employed direct motor drive formula of petrol engine car.
Fig. 9 is the major part amplification view of inductance type non-contact type rotation angle detection apparatus.
Figure 10 is the cut-open view that is formed with the neutral gear of electric conductor in inside.
Figure 11 is the cut-open view of neutral gear that is formed with the 3rd embodiment of electric conductor in inside.
Symbol description:
1 hole
2 throttler valves
3 throttle plate pins
4,5,24 screws
6 air throttle districts
7,8 bearing lug bosses
9,10 needle bearings
11 lids
12 thrust spacer rings
13 air throttle gears
14 sheet metals
15 resin material system gear part
16 preset spring
17 preset bar
18 retracting springs
19 nuts
20 excitation conductor
21 neutral gears
22 gear shafts
The 22D through hole
23 motor
25 output gears
26 check washers
27 gear covers
28 fixing bases
29 excitation conductor
30 input conductors
31 gear receiving rooms
32 containment members
33 clips
Embodiment
Below, use accompanying drawing, illustrative embodiment.
[embodiment 1]
Based on Fig. 1～Fig. 3, an embodiment of the rotation angle detection apparatus of the utility model is described.
Like Fig. 1～shown in Figure 3, the excitation conductor of after the upper surface of neutral gear 21 is formed with, stating 20.At this, excitation conductor 20 while when neutral gear 21 shapings is integrally formed or utilize bonding agent to paste.
On gear cover 27, utilize bonding agent to have as the fixing base 28 of sensor with circuit substrate with form fix that excitation conductor 20 is faced mutually as the cover member.Fixing base 28 is being coated with coating on the bonding back surface of gear cover 27 and the back side, thus protection fixing base 28, in order to avoid be worn the influence of powder or corrosive gas.
Fixing base 28 is electrically connected with the electric terminal of molded and shaped connector 27C on gear cover 27 via the electric connection terminal 28K1-28K4 of fixing base 28.
As shown in Figure 2, on fixing base 28, be printed with the excitation conductor 29 of many ring-types as insulated substrate.And side is printed with the many input conductors 30 that are radial extension within it.Dorsal part at fixing base 28 also is printed with same excitation conductor 29 and input conductor 30, and the excitation conductor 29 and the input conductor 30 of the table back of the body link to each other through through hole 28A-28D.
In this embodiment, can access the AC signal of three-phase from input conductor 3B.
In addition, be formed with the rotation angle detection apparatus of two groups of identical non-contact types,, come the unusual or subsequent use each other when unusual of detecting sensor through each other signal is compared.
28L, 28M are microcomputers, have the drive controlling and the signal processing function of the rotation angle detection apparatus of non-contact type respectively.
Among the terminal 28K1-28K4, one is power supply terminal (for example 28K1), and one is ground terminal (for example 28K3), and remaining two 28K2,28K4 play a role as the signal output terminal of angle detection device respectively.Through between signal terminal, disposing ground terminal, thereby can prevent signal terminal short circuit and make both sides' signal become the situation of ERST simultaneously each other.
Microcomputer 3L, 3M, handle the ac current waveform that input conductor 30 produces to excitation conductor 29 supplying electric currents from power supply terminal 28K1, detect the position of rotation of excitation conductor 20, and the result is the anglec of rotation that detects neutral gear 21.Neutral gear comes transmission power through air throttle gear and each gear, is rotated with constant reduction gear ratio interlock.At this, the rotating range of air throttle gear 13, and the reduction gear ratio Z of 13 of neutral gear 21 and air throttle gears set with the mode that meets following formula.
(the rotating range θ of air throttle gear 13) * (the reduction gear ratio Z that neutral gear 21 and air throttle gear are 13)＜360 °; Thus; The anglec of rotation of the anglec of rotation of neutral gear 21 and air throttle gear 13 is confirmed one to one; Therefore through detecting the anglec of rotation of neutral gear 21, the result can detect the anglec of rotation of air throttle gear 13.
Then, with reference to Fig. 1 and Fig. 4～Fig. 8, specify the example that above-mentioned contactless rotation angle detection apparatus is applicable to motor-driven airflow (throttler valve) control device that petrol engine is used.
Fig. 1 is its main cut-open view, and Fig. 4～Fig. 8 is stereographic map, exploded perspective view and the vertical view that is used to explain detailed structure.
Below, the structure of the airflow control of direct motor drive formula is described.
Form air suction way 1 (below be called the hole) together and motor 23 is taken in the motor casing 23A of usefulness at the throttling valve group body of cast aluminium system (below be called the air throttle district) 6.
Dispose metal turning axle (below be called throttle plate pin) 3 (being rotated detection bodies) along the diameter line in hole 1 in air throttle district 6.The two ends of throttle plate pin 3 are rotated supporting by needle bearing 9,10.Needle bearing 9,10 is pressed into and is fixed on the bearing lug boss 7,8 that is provided with in air throttle district 6.And, after C type packing ring (below be called the thrust spacer ring) 12 is inserted into the slit portion that is provided with on the throttle plate pin 3, is pressed into needle bearing 9, but limits the axial momentum of throttle plate pin 3.
So, throttle plate pin 3 is supported to and can rotates with respect to air throttle district 6.On throttle plate pin 3, the throttling valve that will be made up of the plectane of metal material system (below be called throttler valve) 2 is inserted in the slit that is provided with on the throttle plate pin 3, and utilizes screw 4,5 to be fixed on the throttle plate pin 3.
So, when throttle plate pin 3 rotation, throttler valve 2 is rotated, the result be the sectional area of air suction way change and control to the intake air flow of engine.
The opening of bearing lug boss 7,8 is constituted shaft sealing, thereby is kept airtight by needle bearing 9,10 sealings.And the end of bearing lug boss 8 sides prevents that by lid 11 sealings the end of throttle plate pin 3 and needle bearing 10 from exposing.
Thus, prevent that air from leaking from bearing portion, and the railway grease of lubricated usefulness that prevents bearing in extraneous gas or after the transducer room stated spill.
Be fixed with the minimum metal output gear 25 of the number of teeth in the turning axle end of motor 23.Side surface part disposes the reduction gear or the winding that are used for throttle plate pin 3 is rotated driving and disposes spring device in the air throttle district of a side that is provided with this output gear 25.And these portions of mechanism are covered by the cover of the resin material system on the side surface part that is fixed on air throttle district 6 (below be called gear cover) 27 (cover members).And; In the so-called gear receiving room that covers by this gear cover 27, be provided with the non-contact type rotation angle detection apparatus (below be called throttle sensor) of Fig. 1～inductance type illustrated in fig. 3; Detect the anglec of rotation of neutral gear 21; Detect the anglec of rotation of throttle plate pin 3 thus indirectly, the result is the aperture that detects throttler valve 2.
On the end of the throttle plate pin 3 of gear cover 27 sides, be fixed with air throttle gear 13.Air throttle gear 13 comprises sheet metal 14 and the resin material system gear part 15 that on this sheet metal 14, is formed by resin.Go out resin material system gear part 15 in that the peripheral part of sheet metal 14 is mold formed through ester moulding.
At the back side of air throttle gear 13 and preset clamping between the bar 17 and have by what wind spring formed and preset spring.Clamping has the retracting spring 18 that is formed by wind spring between the side of presetting bar 17 and air throttle district 6.
Around the one-sided encirclement bearing protruding 7 of retracting spring 18, its front end is limited to the otch of 6 formation in the air throttle district, and the end can't rotate along sense of rotation.The other end surrounds the cylindrical resin portion preset bar 17, and its front end is limited to the hole that forms on the bar 17 presetting, this end with preset bar 17 and become one and be rotated.In addition; Have by what resin formed and only revolve projection presetting bar 17 peripheral parts; This projection through with 6 another notch butts of forming in the air throttle district, and be limited, simultaneously through the direction imposed load of retracting spring 18 to the restriction rotation to the one-sided rotation of sense of rotation.The back side of air throttle gear 13 becomes can in the scope by the shape for lugs restriction that has respectively, rotate with the face of the air throttle gear side that presets bar 17 is chimeric.The end of presetting spring 16 is limited to the hole that forms on the bar 17 presetting; The end of presetting the opposing party of spring 16 is limited to the shape for lugs that forms at the back side of air throttle gear 13; Under the effect of presetting spring 16,13 pairs of air throttle gears preset bar 17 to the one-sided imposed load of sense of rotation.
Like this, through presetting preloading of spring 16 and retracting spring 18, when motor 23 was not energized, throttler valve 2 was kept preset position.
Present embodiment is relevant with petrolic airflow control; Therefore at the preset position of throttler valve 2, be the power supply of motor 23 when being cut off, the aperture position that throttler valve 2 is endowed as initial position is to open about 30% middle aperture from full close position.
Being installed in the output gear 25 on the turning axle and being fixed between the air throttle gear 13 on the throttle plate pin 3 and be engaged with neutral gear 21 at motor 23; This neutral gear 21 is supported to rotating by the gear shaft 22 (bolster) of metal material system, and these gear shaft 22 1 ends are pressed into and are fixed among the hole 6A that on the side in air throttle district 6, is provided with.Neutral gear 21 comprises and the large diameter gear 21A of output gear 25 engagements and the small-diameter gear 21B that meshes with air throttle gear 13.Two gears are through ester moulding and one-body molded.Be formed with the bolster inserting hole 22A at the end from peristome 22B towards large diameter gear 21A side, this peristome 22B is open-ended to the small-diameter gear 21B's of neutral gear 21.Through gear shaft 22 (bolster) being carried out movable fit with this bolster inserting hole 22A and neutral gear 21 being supported to rotating.These gears 25,21A, 21B, 13 constitute the reduction gear of two-stage.
Like this, the rotation of motor 23 is transmitted to throttle plate pin 3 via this reduction gear.
Above-mentioned reducing gear and spring device are covered by the gear cover 27 of resin material system.Open end side periphery at gear cover 27 is formed with the groove that supplies containment member 32 to insert; As if under the state that is installed on this groove at containment member 32 gear cover 27 being covered in air throttle district 6; Then the gear receiving room that forms of containment member 32 and side in air throttle district 6 around the end face of framework connect airtight, thereby with blocking from extraneous gas in the gear receiving room.Under this state, utilize six clips 33 that gear cover 27 is fixed on air throttle district 6.
Below, be that throttle sensor specifies to the rotation angle detection apparatus that between reduction gear and gear cover 27 that it is covered, forms of such formation.
The central portion of the gear part 21A that diameter on the end face of gear cover 27 sides of neutral gear 21 is big is formed with bellying 21D, is provided with planar portions 21F in the end of bellying 21D.
At this planar portions 21F through the integrally formed or bonding excitation conductor 20 that is equipped with.
Therefore, when motor 23 rotation and throttler valve 2 when being rotated, neutral gear 21 is accompanied by the rotation of air throttle gear 13 and rotates, and excitation conductor 20 also is accompanied by rotation and the one rotation of neutral gear 21.
In the excitation conductor 29 and input conductor 30 on the gear cover 27 in the face of being fixed with throttle sensor on the position of excitation conductor 20.
In the prior art; Under the situation of the structure that adopts excitation conductor 20 to engage with the gear cover 27 side ends electricity of throttle plate pin 3; When the bonder terminal of gear cover 27 is applied static; Be fixed between excitation conductor 29 and the excitation conductor 20 on the gear cover 27 or produce discharge between input conductor 30 and the excitation conductor 20 with excitation conductor 20 is faced mutually, the microcomputer of throttle sensor might destroy, but in the present embodiment; On the planar portions 21F of the neutral gear 21 through excitation conductor 20 being configured in ester moulding, and can overcome above-mentioned problem.
In addition, be shaped and on excitation conductor 20 integrally formed bellying 21D the time, can save the assembling procedure of the essential electric conductor of prior art, thereby a kind of electronic control throttle district of cheapness can be provided through inlaying at neutral gear 21.
Fig. 9 is pack into the amplification view of portion of neutral gear.On the fixing base 28 lift-launch faces of gear cover 27, have cylindrical protrusion 27A, its hole 28A from the central authorities that are positioned at excitation conductor 29 of fixing base 28 is outstanding.Height 9-1 through suitable setting neutral gear 21, between the jut 27A of planar portions 21F that forms on the upper surface of the neutral gear 21 in air throttle district 6 and gear cover 27 apart from 9-2, and gear cover 27A jut from the overhang 9-3 on fixing base 28 surfaces; And can the gap between neutral gear 21 and excitation conductor 20 and the fixing base 28 be limited in the scope of target, can limit moving of neutral gear 21 with fixing base 28 discontiguous modes with neutral gear 21 and excitation conductor 20 simultaneously.
Fig. 7 representes the vertical view of gear receiving room.Framework 6F through fixed teeth wheel cover 27 divides gear receiving room 28.Can see that in the inboard of framework 6F six are used for installation portion that gear cover 27 is gripped.6P1-6P3 is the wall of the location usefulness of gear cover 27, is limited to this three walls through the locator protrusions with gear cover 27, thereby excitation conductor 29 and input conductor 30 are located with the excitation conductor 20 of rotation side, can export the interior signal of permissible range of requirement.Standard-sized sheet stopper 13A mechanically determines the fully open position of air throttle gear 13, is made up of the projection on the sidewall that is integrally formed in the air throttle district.
Through otch terminal part and this projections that makes air throttle gear 13, throttle plate pin 3 can't and be rotated above fully open position.
Full cut-off stopper 13B limits the full close position of throttle plate pin 3, and bump against with full cut-off stopper 13B on full close position at the terminal of the opposition side of air throttle gear 13, and stop throttle plate pin 3 to rotate to more than the full close position.Thus, decision is fixed on the movable range of the sense of rotation of the throttler valve 2 on the throttle plate pin 3.
Full cut-off, standard-sized sheet value are represented in the output of the locational input conductor of above-mentioned stopper (corresponding with the parts shown in the symbol 29 of Fig. 2).23B representes motor bracket, and 23F representes the flange part of motor bracket 23B.
[embodiment 2]
Figure 10 is the figure that is formed with excitation conductor 20 in the inside of neutral gear 21.
Through utilize all be the resin portion of neutral gear 21 of insulator cover excitation conductor 20 around; Compare with embodiment 1, further improve in the effect that prevents between excitation conductor 29 and the excitation conductor 20 or between input conductor 30 and the excitation conductor 20 to discharge.
According to the embodiment of above record, can solve following problem.
In possessing the electronic control throttle device that metal throttle plate pin reaches and the on-board engine of the direct-connected metallic throttle sensor of throttle plate pin rotor is used; Throttle sensor separates small space with the throttle sensor circuit of circuit substrate and throttle sensor rotor and is provided with; To when joint that throttle sensor is connected with the throttle sensor circuit of circuit substrate applies static; Static via throttle sensor with the throttle sensor circuit of circuit substrate and the small space between the throttle sensor rotor; Be sidelong to throttle sensor rotor, throttle plate pin; Thereby the generation electric current, it is damaged that the air throttle sensor circuit is taken place.
The characteristic that being used among the embodiment solves problem is, through throttle sensor rotor loading position is arranged on the resinous neutral gear, thereby makes metallic throttle sensor rotor and the insulation of metallic parts through resin.
In the embodiment that constitutes like this; Through the throttle sensor rotor being arranged on the neutral gear of resin material system; The discharge of other parts that can prevent to be contacted to the throttle sensor rotor via metallic throttle sensor rotor from the throttle sensor substrate circuit, thus can prevent because of producing the breakage of the throttle sensor substrate circuit that electric current takes place.
And, need not be configured to make the non-contact rotational angle pick-up unit and the rotation of turning axle one of inductance type, thereby can obtain the airflow control of designs simplification in the end of turning axle.
[embodiment 3]
According to the 3rd embodiment shown in Figure 11, the bolster inserting hole 22A that the end is arranged from peristome 22B forms towards large diameter gear 21A side is having bottom 22C to have through hole 22D, wherein this peristome 22B open-ended to the small-diameter gear 21B of neutral gear 21.With gear shaft 22 (bolster) movable fit of neutral gear 21 during in bolster inserting hole 22A, this through hole 22D have confined space that the inside at bolster inserting hole 22A is formed in the air function of discharging to the outside.Thus, neutral gear is installed to gear shaft 22 (bolster) swimmingly.
Except utilize all be the resin portion of neutral gear 21 of insulator cover excitation conductor 20 around second embodiment insulation effect, and the assembleability of above-mentioned neutral gear improve the effect; Through hole 22D can also with enter into the throttle sensor rotor that is provided with on the neutral gear of resin material system and between the excitation conductor 29 that is provided with on the cover or the dust of the detector gap between input conductor 30 and the excitation conductor 20 capture through hole 22D, thereby can suppress the short circuit or the detectability reduction of the detection conductor that dust causes.
Need to prove that this structure also goes for first embodiment.
In addition; Also can make the diameter of the diameter of the jut 27A that is arranged on the gear cover 27 greater than this through hole 22D; And as first, second embodiment as the anticreep spare of neutral gear 21; Can also make the diameter of the diameter of jut 27A less than through hole 22D, and with jut 27A movable fit in the mode of through hole 22D as anticreep spare.
Industrial applicibility
Embodiment has explained the structure that goes up the non-contact type rotation angle detection apparatus that carries inductance type at the airflow control of petrol engine vehicula motor drive-type (airflow control of direct motor drive formula), but also can be applicable to the airflow control of the direct motor drive formula that diesel motor is automobile-used.
In addition, as rotational angle detecting sensor, for example, also go for detecting the sensor of the anglec of rotation of accelerator pedal.
Also go for the rotation angle detection apparatus of the movable vane control of turbosupercharger with actuator.
Can also be applicable to the rotation angle detection apparatus of the gear shift actuator of automatic transmission.
Can also be applicable to two drive, the rotation angle detection apparatus of 4 wheel driven switching actuator.
Claims (12)
1. rotation angle detection apparatus; The rotation detecting that it detects for the rotation to motor actuator; Have: neutral gear; It slows down to the rotation of output gear on the axle that is fixed on driving motor, and with the turning moment of said motor to the gear transmission of level eventually that is fixed on the turning axle that is rotated detection bodies; Housing member, it covers said output gear, said level gear and said neutral gear eventually, and said rotation detecting possesses:
Sensor is used circuit substrate, and it is installed on the said housing member;
Excitation conductor portion, it is adapted to ring-type at said sensor on circuit substrate, and produces magnetic field through applying of electric current;
Excitation conductor portion, itself and said excitation conductor portion keep being configured at interval contactless state, and produce and the said corresponding electric current of position of rotation that is rotated detection bodies through electromagnetic action;
Receive conductor portion, it is provided in said sensor with on the circuit substrate, and produces and flow through the corresponding electric current of electric current of said excitation conductor portion, wherein,
Said neutral gear forms through ester moulding,
Said excitation conductor portion is configured on the said neutral gear.
2. rotation angle detection apparatus according to claim 1, wherein,
Said excitation conductor portion integratedly ester moulding in the resin portion of said neutral gear.
3. rotation angle detection apparatus according to claim 1, wherein,
The hole that the end is arranged that is used to install bolster that the rotation of said neutral gear is supported and on the face of the bolster inserting hole that forms on the said neutral gear by the opposition side of the face that said excitation conductor portion is being installed, has a peristome constitutes, and said bolster movable fit is in said bolster inserting hole.
4. rotation angle detection apparatus according to claim 1, wherein,
Said neutral gear is made up of the ester moulding gear that possesses the little gear part of big gear part of diameter and diameter, and the gear part that said diameter is big disposes towards said cover,
Said neutral gear possesses bellying at the central portion of the big gear part of said diameter, and the front end of this bellying is formed by planar portions, in this planar portions said excitation conductor portion is installed.
5. the airflow control of a direct motor drive formula, it possesses:
Neutral gear, its rotation to driving motor slow down and to the turning axle transmission of throttling valve;
Housing member, it covers the turning axle and the said neutral gear of said driving motor, said throttling valve;
Sensor is used circuit substrate, and it is installed on the said housing member;
Excitation conductor portion, it is adapted to ring-type at said sensor on circuit substrate, and produces magnetic field through applying of electric current;
Excitation conductor portion, itself and said excitation conductor portion keep being configured at interval contactless state, and through the position of rotation corresponding electric current of electromagnetic action generation with said throttling valve;
Receive conductor portion, it is provided in said sensor with on the circuit substrate, and produces and flow through the corresponding electric current of electric current of said excitation conductor portion, wherein,
Said neutral gear forms through ester moulding,
Said excitation conductor portion is configured on the said neutral gear.
6. the airflow control of direct motor drive formula according to claim 5, wherein,
The discharge path shut-off member that the resin portion of said neutral gear is protected as avoiding formation discharge path between said excitation conductor portion and said sensor are with circuit substrate plays a role.
7. the airflow control of direct motor drive formula according to claim 5, wherein,
The hole that the end is arranged that is used to install bolster that the rotation of said neutral gear is supported and on the face of the bolster inserting hole that forms on the said neutral gear by the opposition side of the face that said excitation conductor portion is being installed, has a peristome constitutes, and said bolster movable fit is in said bolster inserting hole.
8. the airflow control of direct motor drive formula according to claim 5, wherein,
Said neutral gear is made up of the ester moulding gear that possesses the little gear part of big gear part of diameter and diameter, and the gear part that said diameter is big disposes towards said cover,
Said neutral gear possesses bellying at the central portion of the big gear part of said diameter, and the front end of this bellying is formed by planar portions, in this planar portions said excitation conductor portion is installed.
9. the airflow control of direct motor drive formula according to claim 8, wherein,
Be used to install bolster that the rotation of said neutral gear is supported and on the face of the bolster inserting hole that forms on the said neutral gear, have and supply said bolster to insert logical peristome, and do not reach the hole that the end is arranged of said planar portions for the opposition side of said planar portions that said excitation conductor portion is being installed.
10. the airflow control of a direct motor drive formula, it possesses:
Neutral gear, its rotation to driving motor slow down and to the turning axle transmission of throttling valve;
Housing member, it covers the turning axle and the said neutral gear of said driving motor, said throttling valve;
Sensor is used circuit substrate, and it is installed on the said housing member;
Excitation conductor portion, it is adapted to ring-type at said sensor on circuit substrate, and produces magnetic field through applying of electric current;
Excitation conductor portion, itself and said excitation conductor portion keep being configured at interval contactless state, and through the position of rotation corresponding electric current of electromagnetic action generation with said throttling valve;
Receive conductor portion, it is provided in said sensor with on the circuit substrate, and produces and flow through the corresponding electric current of electric current of said excitation conductor portion, wherein,
Said neutral gear forms through ester moulding,
Said excitation conductor portion is configured on the said neutral gear,
The hole that the end is arranged that is used to install bolster that the rotation of said neutral gear is supported and on the face of the bolster inserting hole that forms on the said neutral gear by the opposition side of the face that said excitation conductor portion is being installed, has a peristome constitutes; Said bolster movable fit is in said bolster inserting hole
There is the bottom to be formed with the through hole that the discharge air is used towards said cover said.
11. the airflow control of direct motor drive formula according to claim 10, wherein,
Said excitation conductor is installed in the said cover side surface of said neutral gear.
12. the airflow control of direct motor drive formula according to claim 10, wherein,
The integrally formed resin at said neutral gear of said excitation conductor is inner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203229175U CN202420430U (en) | 2011-08-31 | 2011-08-31 | Inductance type rotating angle detection apparatus and electromotor drive type throttle valve controlling means having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203229175U CN202420430U (en) | 2011-08-31 | 2011-08-31 | Inductance type rotating angle detection apparatus and electromotor drive type throttle valve controlling means having the same |
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| Publication Number | Publication Date |
|---|---|
| CN202420430U true CN202420430U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203229175U Expired - Fee Related CN202420430U (en) | 2011-08-31 | 2011-08-31 | Inductance type rotating angle detection apparatus and electromotor drive type throttle valve controlling means having the same |
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| Country | Link |
|---|---|
| CN (1) | CN202420430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112424460A (en) * | 2018-07-23 | 2021-02-26 | 日立汽车***株式会社 | Electric control throttle device |
-
2011
- 2011-08-31 CN CN2011203229175U patent/CN202420430U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112424460A (en) * | 2018-07-23 | 2021-02-26 | 日立汽车***株式会社 | Electric control throttle device |
| CN112424460B (en) * | 2018-07-23 | 2023-02-28 | 日立安斯泰莫株式会社 | Electric control throttle device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20200831 |