CN205532891U - Electric air damper - Google Patents
Electric air damper Download PDFInfo
- Publication number
- CN205532891U CN205532891U CN201620061098.6U CN201620061098U CN205532891U CN 205532891 U CN205532891 U CN 205532891U CN 201620061098 U CN201620061098 U CN 201620061098U CN 205532891 U CN205532891 U CN 205532891U
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- gear
- air door
- housing
- motor
- torsion spring
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Abstract
The utility model discloses a noncontacting proximity sensor electric air damper, include the casing, install throttle shaft, air door, interior torsional spring, outer torsional spring, magnetic receiver, angle displacement sensor and direct current motor on the casing, the last air door gear of installing of throttle shaft is equipped with the motor gear on direct current motor's the motor shaft, air door gear and motor gear pass through the intermediate gear meshing and connect, the air door gear is two faces of recess respectively at the fan -shaped recess internal rotation of air throttle casing, spacing face: spacing face of first casing and the spacing face of second casing. Compared with the prior art, the utility model provides a noncontacting proximity sensor electric air damper has following technological advantages: 1, simplify assembly method, improved air throttle life, reduced manufacturing cost, 2, the unique design of structure has avoided the machinery of gear move in -process to impact, improves life, 3, increase the reliability that the circuit board is sealed, 4, strengthen the reliability of motor installation.
Description
Technical field
This utility model relates to a kind of noncontacting proximity sensor electronic throttle, is applied to engine's throttling technical field.
Background technology
Electronic throttle, as a kind of independent throttling arrangement, has been widely used on the electromotor of all kinds of conveying mechanical such as automobile, boats and ships, and Main Function is to throttle Different Work Condition of Engine to reduce Engine Emissions thing.
Traditional mechanical throttle, is connected in gas pedal by threaded configuration, and driver tramples gas pedal and pulls the axle of the air door of air throttle to control the aperture of air door, reaches to regulate the requirement of air inlet.Owing to the control mode of mechanical throttle is because of the restriction of its dynamic characteristic, it is difficult to correspondingly make accurately according to the different operating modes of automobile, adjust timely；The particularly control poor effect under the special operation condition such as cold start, underload, thus cause the economy of automobile engine to decline, noxious emission amount increases.And the bracing wire that electronic throttle eliminates between tradition gas pedal and air throttle air door is connected, motor is used to control the aperture of air door.When driver steps on efp, its displacement signal is converted to voltage signal and passes to ECU by electronic throttle pedal position sensor, ECU is by being analyzed and send control signal after logical process being presently in operating mode, control throttle valve drive motor, make motor drive air throttle to operate according to angle given for ECU and reach required aperture；The current throttle position letter recorded is fed back to ECU by the TPS on throttle body simultaneously, realizes the optimal closed loop control to air throttle by feedback control.Electronic throttle can determine the optimal aperture of air throttle according to the various travel conditions of the Desire demand of driver and car load, it is ensured that the power performance and the economy performance that vehicle is optimal, reduces exhaust emissions.
Existing throttle motor realizes with the welding manner that connects through of circuit part, middle cover injection molding process cost is increased, assembling process requires height to the operant skill of personnel, and the problems such as the coming off of electric machine joint solder joint, fatigue fracture that result in due to vibration during use occur.
Existing electronic throttle components and parts and mechanical driving part are sealed in same annular seal space, are only sealed by sealing ring, and circuit board section is easily intake, and enters dirt etc., ultimately causes circuit board short circuit and burns.
Existing air throttle is the most spacing at full trrottle position many employings machinery so that this position of gear is easily generated fracture, causes air throttle work process clamping stagnation.
It is thus desirable to new mode improves the air throttle life-span, reduce cost, simplify assembling process.
Utility model content
Utility model purpose: the purpose of this utility model is for above-mentioned technical problem, it is provided that a kind of noncontacting proximity sensor electronic throttle.
Technical scheme: this utility model provides a kind of noncontacting proximity sensor electronic throttle, the axle of the air door including housing, being arranged on housing, air door, interior torsion spring, outer torsion spring, magnetic receiver, angular displacement sensor and direct current generator；
Air door gear is installed on described axle of the air door, equipped with motor gear on the motor shaft of direct current generator, is slowed down (passing through idler gear) by secondary gear power train, finally export to air door gear；Described air door gear rotates in air throttle housing scalloped recess, and confined planes is respectively two faces of groove: the first housing confined planes and the second housing confined planes；
Described interior torsion spring is arranged in air door bore, and is provided with the first torsion spring pin and the second torsion spring pin, is correspondingly provided with two limited blocks on housing: the first torsion spring limited block and the second torsion spring limited block；Described outer one end is fixed on housing, and other end is fixed on air door gear；
Position relative with angular displacement sensor on axle of the air door is fixed with magnetic receiver, and Magnet is moulded in magnetic receiver, and is not in contact with each other mutually with the Hall element on angular displacement sensor, and angular displacement sensor is arranged on housing.
As preferably, when described axle of the air door goes to full trrottle position, now the second gear position limiting face of air door gear and the second housing confined planes angle are 8 °, and in its natural state, the first torsion spring pin props up the first torsion spring limited block for outer torsion spring and interior torsion spring；When axle of the air door goes to air door full close position, the first gear position limiting face of air door gear arrives to the first torsion spring confined planes.If air throttle is rotated further at the fully open position axle of the air door that goes wrong, the first torsion spring pin of interior torsion spring props up the first housing limited block and rotates, until the second gear position limiting face of air door gear props up the second housing confined planes.
Preferred as another kind, the described secondary gear kind of drive is connected as: be provided with jackshaft between motor gear and air door gear, jackshaft is provided with idler gear, and motor gear engages each other with the gear wheel of idler gear, and air door gear engages each other with the little gear of idler gear.
Preferred as another kind, described axle of the air door is arranged on housing by the first needle bearing, the second needle bearing and filling pad, and bearing compresses in the housing；Air door is screwed on axle of the air door through axle of the air door；
Preferred as another kind, described angular displacement sensor includes middle cover, be arranged on by screw in the pcb board that covers and the Hall element being welded on pcb board, upper cover covers in being fixed on.
Preferred as another kind, between one side and the middle cover of described housing installation gear, sealing ring is installed, and by snapping connection；The additionally one side of housing installs plug, interference fit between plug and housing.
Preferred as another kind, described direct current generator is fixed on air throttle housing through symmetrical holes motor cover plate and wavy spring: motor cover plate is fixed on air throttle housing through screw, motor gear passes motor cover central hole, two contact pins of motor insert in motor cover plate cylinder, the square step of motor cover back snaps in motor cycle hole, and wavy spring is arranged on motor rear end face.
Preferred as another kind, described magnetic receiver is fixed on axle of the air door by split pin.
Technique effect: relative to prior art, the noncontacting proximity sensor electronic throttle that this utility model provides, there is techniques below advantage:
1, simplify assembly method, improve air throttle service life, reduce manufacturing cost
2 pins of motor are directly loadable in motor cover plate, upper cover realizes with 2 contact pins that connect through of motor pin, contact pin two ends are designed with back-off, contact pin is avoided to come off during using, this design makes to avoid traditional motor pin welding processing during assembling, not only simplify assembly method, and efficiently solve the problems such as the coming off of electric machine joint solder joint owing to vibration causes, fatigue fracture, ensure that the reliability during use, reduce the difficulty of middle cover injection thus reduce the cost.
2, the unique design of structure, it is to avoid the mechanical impact during gear movement, improves service life
Newly-designed structure makes the position of full trrottle under 2 torsion spring nature elongation states, solve in work process due to signal fluctuation, air door gear is caused to hit for the mechanical hard hit of housing, the reserved LAP of design, buffering is added after spring reset, and cushion effect is bigger, it is to avoid the gear fracture because of the hard spacing generation of machinery.
3, the reliability that circuit board seals is increased
Dividing chamber to seal circuit part and mechanical driving part, electric elements and pcb board are mounted directly and are fixed in middle cover, sealant pouring and sealing, and upper cover uses ultrasonic bonding with the connection of middle cover, solve circuit board due to water inlet, enter dirt and cause short-circuit etc. problem.
4, the reliability that motor is installed is strengthened
Use symmetrical motor cover plate structure, two asymmetrical screw hole lines are perpendicular to the centre bore line of idler gear and air door gear, ensureing the stress balance of motor rotation, motor cover plate has raised step can prevent mounting position of motor from mistake occur, motor increases wavy spring and effectively solves Extraneous vibrations.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of this utility model electronic throttle；
Fig. 2 is front view of the present utility model；
Fig. 3 is sectional view of the present utility model；
Fig. 4 is gear face view；
Fig. 5 is drive connection view of the present utility model；
Fig. 6 is housing axonometric chart of the present utility model；
Fig. 7 is to install wavy spring, motor cover plate and the front view of inserted sheet on direct current generator of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model noncontacting proximity sensor electronic throttle is made and further illustrating.
This utility model shown in Fig. 1 to Fig. 7 includes housing 1, middle cover 2, buckle 3, upper cover 4, plug the 5, first needle bearing 6, axle of the air door 7, screw 8, air door 9, pad the 10, second needle bearing 11, interior torsion spring 12, outer torsion spring 13, air door gear 14, magnetic receiver 15, angular displacement sensor 16, idler gear 17, jackshaft 18, motor cover plate 19, motor gear 20, sealing ring 21, direct current generator 22, wavy spring 23, contact pin 28, split pin 29.
In the present embodiment, it is fixed on direct current generator 22 connection on housing and has second gear reduction unit structure, direct current generator 22 drives axle of the air door 7 to rotate by second gear reduction unit structure, thus driving the air door 9 being fixed on axle of the air door by screw 8 to rotate in housing 1 air channel, position relative with angular displacement sensor 16 on axle of the air door 7 is fixed with magnetic receiver 15 by split pin 29.
Magnet is moulded in magnetic receiver 15, can avoid installing rocking of bringing of Magnet, improve the accuracy of angular displacement sensor 16 feedback signal, by independent for magnetic receiver 15 versatility that can also strengthen part, reduces cost.
Direct current generator 22 is provided with motor cover plate 19, and it is internal that motor cover plate 19 is fixed by screws in housing 1, thus it is internal that direct current generator is fixed on housing 1.
Second gear reduction unit structure is by motor gear 20, idler gear 17, air door gear 14 is constituted, motor gear 20 is pressed on direct current generator 22 output shaft, idler gear 17 rotates on jackshaft 18, jackshaft 18 is pressed on housing 1, air door gear 14 is weldingly fixed on axle of the air door 7, motor gear 20 is meshed by idler gear 17 with air door gear 14, motor gear 20 engages each other with the gear wheel of idler gear 17, air door gear 14 engages each other with the little gear of idler gear 17, thus drive motor axle of the air door 7 can be driven to rotate by second gear reduction unit structure.
Axle of the air door 7 is arranged in housing 1 by two needle bearings and pad 10, and pad blocks axle of the air door 7 and is possible to prevent the play up and down of axle of the air door 7, improves the accuracy of angular displacement sensor 16 feedback signal.
Interior torsion spring 12 is arranged in air door gear 14 endoporus, and 2 pins are fixed in air door gear 14 stopper slot, and outer torsion spring 13 one end pin is fixed on air door gear 14, and the other end is fixed on housing 1.
Angular displacement sensor 16 includes middle cover 2, be arranged on by screw in the pcb board that covers and the Hall element being welded on pcb board, angular displacement sensor 16 as integral installation on housing 1, simple and compact for structure, easy installation and removal.Magnet is not in contact with each other mutually with Hall element, and magnetic field intensity changes, the size of Hall element non-contact testing rotating excitation field along with the rotation of axle of the air door 7, is fed back the exact position of air door 9 by angular displacement sensor 16.
Middle cover 2 pin is connected by contact pin 28 with motor pin, and contact pin 28 is arranged on motor cover plate 19, and contact pin 28 is designed with back-off, it is to avoid contact pin 28 comes off during using, and reduces the difficulty of middle cover injection thus reduces the cost.
Hall element is arranged on pcb board and is fixed in middle cover 2 inner chamber, with the silica gel that proportioning is good on circuit board, upper cover 4 is fixed on middle cover 2 by ultrasonic bonding, circuit part becomes independent annular seal space be prevented effectively from the entrance enclosure interior such as dust, liquid and damage pcb board, on housing, mechanical driving part is sealed by middle cover 4,6 buckles compress middle cover 4 and housing 1, are provided with sealing ring, housing 1 other end press-in plug 5 between the two.
When axle of the air door 7 goes to air door 9 fully open position, second gear position limiting face the 27 to the second housing confined planes 26 angle 8 ° of air door gear 14, in its natural state, the first torsion spring pin 31 props up housing limited block 30 for outer torsion spring 13 and interior torsion spring 12；When axle of the air door 7 goes to air door 9 full close position, the first gear position limiting face 25 of air door gear 14 arrives to the first housing confined planes 24.If air throttle is rotated further at the fully open position axle of the air door 7 that goes wrong, the first torsion spring pin 31 of interior torsion spring 13 props up the first torsion spring limited block (30) and rotates, until the second gear position limiting face 27 of air door gear 14 arrives to the second housing confined planes 26.
During work, when driver steps on efp, its displacement signal is converted to voltage signal and passes to ECU by electronic throttle pedal position sensor, ECU is by being analyzed and send control signal after logical process being presently in operating mode, control direct current generator 22, make direct current generator 22 drive axle of the air door 7 to operate by second gear reduction unit structure and make air door 9 reach required aperture, magnetic field intensity changes along with the rotation of axle of the air door 7, the size of Hall element non-contact testing rotating excitation field, the exact position of air door is fed back by angular displacement sensor 16, the current air door 9 position letter recorded is fed back to ECU, the optimal closed loop control to air throttle is realized by feedback control.Electronic throttle can determine the optimal aperture of air throttle according to the various travel conditions of the Desire demand of driver and car load, it is ensured that the power performance and the economy performance that vehicle is optimal, reduces exhaust emissions.
Claims (8)
1. a noncontacting proximity sensor electronic throttle, it is characterized in that, axle of the air door (7), air door (9), interior torsion spring (12), outer torsion spring (13), magnetic receiver (15), angular displacement sensor (16) and the direct current generator (22) including housing (1), being arranged on housing (1)；
Air door gear (14) is installed on described axle of the air door (7), equipped with motor gear (20) on the motor shaft of direct current generator (22), air door gear (14) and motor gear (20) are connected by idler gear (17)；Described air door gear (14) rotates in air throttle housing (1) scalloped recess, and confined planes is respectively two faces of groove: the first housing confined planes (24) and the second housing confined planes (26)；
Described interior torsion spring (12) is arranged in air door gear (14) endoporus, and it is provided with the first torsion spring pin (31) and the second torsion spring pin (32), housing (1) is correspondingly provided with two limited blocks: the first torsion spring limited block (30) and the second torsion spring limited block (33)；Described outer torsion spring (13) one end is fixed on housing (1), and other end is fixed on air door gear (14)；
It is fixed with magnetic receiver (15) in the upper position relative with angular displacement sensor (16) of axle of the air door (7), Magnet is moulded in magnetic receiver (15), and being not in contact with each other mutually with the Hall element on angular displacement sensor (16), angular displacement sensor (16) is arranged on middle cover (2).
Noncontacting proximity sensor electronic throttle the most according to claim 1, it is characterized in that, when described axle of the air door (7) goes to air door (9) fully open position, second gear position limiting face (27) of air door gear (14) is 8 ° to angle between the second housing confined planes (26), in its natural state, the first torsion spring pin (31) props up the first torsion spring limited block (30) for outer torsion spring (13) and interior torsion spring (12)；When axle of the air door (7) goes to air door (9) full close position, the first gear position limiting face (25) of air door gear (14) arrives to the first housing confined planes (24)；If air throttle is rotated further at the fully open position axle of the air door (7) that goes wrong, first torsion spring pin (31) of interior torsion spring (13) props up the first torsion spring limited block (30) and rotates, until the second gear position limiting face (27) of air door gear (14) arrives to the second housing confined planes (26).
Noncontacting proximity sensor electronic throttle the most according to claim 1, it is characterized in that, jackshaft (18) it is provided with between described motor gear (20) and air door gear (14), jackshaft (18) is provided with idler gear (17), motor gear (20) engages each other with the gear wheel of idler gear (17), and air door gear (14) engages each other with the little gear of idler gear (17).
Noncontacting proximity sensor electronic throttle the most according to claim 1, it is characterized in that, described axle of the air door (7) is arranged on housing (1) by the first needle bearing (6), the second needle bearing (11) and filling pad (10), and bearing is pressed in housing (1)；Air door (9) is screwed on axle of the air door (7) through axle of the air door (7).
Noncontacting proximity sensor electronic throttle the most according to claim 1, it is characterized in that, described angular displacement sensor (16) includes middle cover (2), be arranged on by screw in the pcb board that covers and the Hall element being welded on pcb board, upper cover (4) is fixed on middle cover (2).
Noncontacting proximity sensor electronic throttle the most according to claim 1, it is characterized in that, between one side and the middle cover (2) of described housing (1) installation gear, sealing ring (21) is installed, and is connected by buckle (3)；The additionally one side of housing (1) installs plug (5), interference fit between plug (5) and housing (1).
Noncontacting proximity sensor electronic throttle the most according to claim 1, it is characterized in that, it is upper that described direct current generator (22) is fixed on air throttle housing (1) through symmetrical holes motor cover plate (19) and wavy spring (23): motor cover plate (19) is fixed on air throttle housing (1) through screw, motor gear (20) passes motor cover plate (19) centre bore, two contact pins (28) of motor are inserted in motor cover plate (19) cylinder, the square step in motor cover plate (19) back side snaps in motor cycle hole, wavy spring (23) is arranged on motor rear end face.
Noncontacting proximity sensor electronic throttle the most according to claim 1, it is characterised in that described magnetic receiver (15) is fixed on axle of the air door (7) by split pin (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620061098.6U CN205532891U (en) | 2016-01-22 | 2016-01-22 | Electric air damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620061098.6U CN205532891U (en) | 2016-01-22 | 2016-01-22 | Electric air damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205532891U true CN205532891U (en) | 2016-08-31 |
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ID=56767311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620061098.6U Active CN205532891U (en) | 2016-01-22 | 2016-01-22 | Electric air damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205532891U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461229A (en) * | 2017-10-10 | 2017-12-12 | 四川红光汽车机电有限公司 | The electronic air throttle body that a kind of new fan gear is connected with throttle plate pin |
| CN108869054A (en) * | 2018-04-13 | 2018-11-23 | 江苏派欧汽车零部件有限公司 | A kind of air throttle of car middle cover |
| CN113685274A (en) * | 2021-10-27 | 2021-11-23 | 江苏领先汽车技术有限公司 | Anti-carbon-deposition electronic throttle valve |
-
2016
- 2016-01-22 CN CN201620061098.6U patent/CN205532891U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461229A (en) * | 2017-10-10 | 2017-12-12 | 四川红光汽车机电有限公司 | The electronic air throttle body that a kind of new fan gear is connected with throttle plate pin |
| CN108869054A (en) * | 2018-04-13 | 2018-11-23 | 江苏派欧汽车零部件有限公司 | A kind of air throttle of car middle cover |
| CN113685274A (en) * | 2021-10-27 | 2021-11-23 | 江苏领先汽车技术有限公司 | Anti-carbon-deposition electronic throttle valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |