CN107314603A - A kind of two-door electric throttle device with anti-follower structure - Google Patents
A kind of two-door electric throttle device with anti-follower structure Download PDFInfo
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- CN107314603A CN107314603A CN201710686887.8A CN201710686887A CN107314603A CN 107314603 A CN107314603 A CN 107314603A CN 201710686887 A CN201710686887 A CN 201710686887A CN 107314603 A CN107314603 A CN 107314603A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Transmission Devices (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
A kind of two-door electric throttle device with anti-follower structure, by the first framework, first door-plate, second framework, second door-plate, gear-box, motor, little gear, first drive gear, second drive gear, first driven sector gear, second driven sector gear and anti-follower composition, helical spring is provided with the second drive gear axis hole, the a piece of flexible flaps in office that one group of flexible flaps combination is interference fitted therewith are provided with a tappet, two the first grooves and the second groove matched with the tappet are respectively equipped with gear-box shaft core, constitute anti-follower, make to turn into elastic movable supports between the second drive gear and gear-box shaft core.The present apparatus can effectively prevent the servo-actuated action that the second drive gear may occur when it should be at static state, realize accurately two-door open and close controlling, there is compact conformation, it is anti-with dynamic torque is consistent, good reliability, long working life, multi-door refrigerator or refrigerator suitable for two spin manifold temperatures of a motor independent control are used.
Description
Technical field
The present invention relates to MOD technical field, more particularly to a kind of two-door MOD dress with anti-follower structure
Put.
Background technology
Electric throttle device is widely used in air-cooled frost-free refrigerator-freezer, refrigerator etc. as temperature control executive component, wherein one
The opening and closing that two-door electric throttle device only independently controls two dampers with a motor is planted, controllable two casings
Different temperatures, is mainly used in multi-door refrigerator.
Japan Patent " Unexamined Patent 10-306970 "《ダ Block Le ダ ン パ ー devices》（DOUBLE DAMPER DEVICE）It is public
A kind of two-door electric throttle device is opened.Its drive mechanism is respectively by the drive connection of the first intermittent driving gear 11 in first
Plate 5a the first driven gear 9, by the drive connection of the second intermittent driving gear 12 in the second door-plate 5b the second driven gear 10.
First intermittent driving gear 11 therein is directly connected to motor output shaft by gear engagement, makees continuous rotation, angle rotatable
For 360 ° of angles, the interval in the middle of its slewing area（120 °~240 ° angles）Interior, incomplete tooth form thereon can drive first
Driven gear 9, which makees 90 ° of angles rotations, is opened and closed the first door-plate 5a.And the angle rotatable of the second intermittent driving gear 12 is 120 °, its
On incomplete tooth form the second driven gear 10 can be driven to make 90 ° of angles and rotate to be opened and closed the second door-plate 5b.Therefore need between second
Drive gear 12 of having a rest makees intermittent rotary, so as to the time that the first door-plate of the driving 5a for the first intermittent driving gear 11 that staggers is opened and closed,
So, the steering by controlled motor and revolution（It is umber of pulse for stepper motor）, it is possible to realize two door-plates
Four kinds of states：1., two door-plates, which are all closed, all closes；2., the first door-plate 5a opens the second door-plate 5b and closed；, 3., the first door-plate 5a close second
Door-plate 5b is opened；4., two door-plates are all opened.It thus can independently control the different temperatures in refrigerator in two casings.The
Two intermittent driving gears 12 are driven by the first intermittent driving gear 11, are realized therebetween by block appropriate between two gear
Have a rest rotation.But, due to the resistance very little of the second door-plate 5b sometimes, or even the deadweight because of the second door-plate 5b or cold wind Action of Wind pressure
And with the situation for tending to rotate, when the first intermittent driving gear 11 is not contacted but because mutual frictional force can also with block
The second intermittent driving gear 12 is driven, so open/closed sequence of two door-plate will be disorderly, even results in the drive mechanism card
Extremely, it is therefore necessary to provided with the anti-hunting gear to the second intermittent driving gear 12.The anti-hunting gear of the patent is between second
Have a rest and a circular contact face 31a and a piece of flat spring 31 are set on drive gear 12, pass through 31 pair of second intermittent driving of flat spring
Gear 12 sends elastic force and produces larger frictional force, to prevent the servo-actuated of the second intermittent driving gear 12.The anti-hunting gear is deposited
In following shortcoming：
（1）Due to needing that a circumferential outer edge is set on the second intermittent driving gear 12, and flat spring 31 is used to it from outside
Apply active force, therefore space-consuming is big.
（2）Because flat spring 31 is to use cantilever design, the stress of flat spring bearing is big, and the long-term stress of plastic box is easy
Producing creep causes anti-hunting gear to fail.
Chinese patent CN1212552C《Drive force transfer mechanism and the throttle setting with it》Disclose another two-door
Electric air door drive device, cam member 8 group of its anti-hunting gear on the intermittent driving gear 26 of spring member 9 and second
Into the spring member 9 is the flat spring that both-end is fixed, and the cam member 8 is by middle one section of periphery 83 and two ends each one
Section straight line minor diameter part is grouped into, the periphery of spring member 9 and cam member 8 has a common boundary with planarea during beginning rib portion 831 or
842 contacts, start to need larger torque to make the flexural deformation of flat spring 9 more when rotating, and are then pure circle side faces in running
Friction, torque are smaller, thus achieve anti-lag function.The patent is although overcome the 2nd of above-mentioned Japan Patent）Item shortcoming,
But still have the following disadvantages：
（1）Due to being provided with a cam member 8 on the second intermittent driving gear 26, and it is from outside two ends freely-supported again
Fixed flat spring component 9 applies active force to it, therefore space-consuming is big.
（2）Because the periphery of cam member 8 and the rib portion 831 and 842 of planarea boundary are sharp, long-term work is subject to
Abrasion, so that its anti-lag function can be weakened.
The content of the invention
It is an object of the invention to provide a kind of compact conformation, duty be small, reliable in action is long-acting has anti-follower structure
Two-door electric throttle device, can effectively prevent that the second drive gear from may occur when it should be at inactive state is servo-actuated
Make, realize accurately two-door open and close controlling.
Technical solution proposed by the invention is such：
A kind of two-door electric throttle device with anti-follower structure, including the first framework 1, the first door-plate 2, gear-box the 3, the 2nd
The framework 5 of door-plate 4 and the 2nd, provided with motor 6, little gear 7, the first drive gear 8, the second drive gear 9, the in the gear-box 3
The one driven sector gear 11 of driven sector gear 10 and second, the first drive gear 8 and the second drive gear 9 are with gear-box shaft core
301 coaxial, and the first drive gear 8 and the pivot bush unit of gear-box shaft core 301, the first drive gear 8 are respectively equipped with from top to bottom
Canine tooth wheel portion 801, the first partial gear portion 802 and the second partial gear portion 803, the canine tooth wheel portion 801 with it is described small
Gear 7 is engaged, and little gear 7 is fixed on the output shaft of motor 6, the driven fan in the first partial gear portion 802 and first
5th partial gear portion 101 of shape gear 10 is engaged, the driven sector gear 10 in the second partial gear portion 803 and first
The 6th partial gear portion 102 engage, the second drive gear 9 is respectively equipped with the He of the 3rd partial gear portion 901 from top to bottom
4th partial gear portion 907, the upper top of the second drive gear 9 is provided with block 906, and 907 liang of the 4th partial gear portion
Side is respectively equipped with the first limited block 904 and the second limited block 905, the driven sector in the 3rd partial gear portion 901 and second
7th partial gear portion 111 of gear 11 is engaged, the driven sector gear 11 in the 4th partial gear portion 907 and second
8th partial gear portion 112 is engaged, first rotating shaft 103 and first door-plate 2 of the first driven sector gear 10
Door-hinge is fixedly connected, and the second rotating shaft 113 of the second driven sector gear 11 and the door-hinge of second door-plate 4 are fixed and connected
Connect, the flexible flaps 902 arranged in the axis hole of second drive gear 9 provided with one group of axial annular, in the elastic valve
Helical spring 12, any bullet in the flexible flaps group are equipped with interference fit in the annular dead slot that piece group is formed
Property limb 902 provided with circular arc tappet 903, be respectively equipped with two on the same level position of gear-box shaft core 301
Individual the first groove of shaft core 311 and the second groove of shaft core 312 matched with the circular arc tappet 903, constitutes anti-follower,
Second drive gear 9 and described 301 elastic movable supports of gear-box shaft core.
When the second drive gear 9, which is rotated counterclockwise, the first limited block 904 is encountered gear-box baffle plate 302, the circular arc
Shape tappet 903 is just fallen into first groove of shaft core 311.Make the second limited block when the second drive gear 9 is rotated clockwise
905 when encountering gear-box baffle plate 302, and the circular arc tappet 903 is just fallen into second groove of shaft core 312.The bullet
Property limb group is made up of 2~10 flexible flaps 902, preferably 5~8.The helical spring 12 be by spring steel wire coiling and
Into the helical spring（12）Central diameter be slightly smaller than second drive gear（9）Annular dead slot average diameter.Described
One drive gear 8, the second drive gear 9, the first driven sector gear 10, the second driven sector gear 11 are molded, institute
Gear-box 3 is stated to form with the integrated injection molding of second framework 5.One of effect of the anti-follower is anti-servo-actuated, and it is meant that will
Prevent the second drive gear 9 because the deadweight of the second door-plate 4, the second door-plate 4 by blast by the second driven sector gear
11 apply a torque to the second drive gear 9 or the first drive gear 8 rotation when to the second drive gear 9 produce frictional force institute band
The factor influence such as dynamic causes the second drive gear 9 not rotate but to follow rotation.
The operation principle of this anti-follower is such：One group of limb 902 is cantilever thin slice, there is certain bullet
Property, it is axial direction, annular, equidistantly arranges, it is deformable within the specific limits.Helical spring 12 can be produced to this group of limb 902
Point to the deformation that the direction of shaft core 301 is shunk.So, elastic activity is constituted between the second drive gear 9 and gear-box shaft core 301
Connection.Upon start up, tappet 903 needs to climb out of from the groove 311 of shaft core the 1st or the groove 312 of shaft core the 2nd, then limb 902 needs
It is flared out a bit, the internal diameter of helical spring 12 will also magnify a bit, overcome this spring force to be accomplished by larger torque.Turn when normal
When dynamic, tappet 903 and remaining multiple limb 902 because being the effect of coupling mechanism force to shaft core by the radial pressure of helical spring 12
301 faces of cylinder can produce a less frictional force, that is, produce a less drag torque.Hereby it is achieved that preventing what is be servo-actuated
Purpose.
The present invention innovation main points be：Using flexible flaps group and using the coupling mechanism force of helical spring, tappet and core are added
The cooperation of groove on axle, it is achieved thereby that the second drive gear 9 needs larger torque on startup, and in normal operation only
Need one it is relatively small anti-with dynamic torque.So, the misoperation for both having prevented the second drive gear 9 to occur, also gram
Taken in normal operation because required torque is excessive and power consumption increase or even the problem of trigger motor desynchronizing.
Compared with prior art, the present invention has following remarkable result：
（1）The anti-follower of the present invention makes to constitute elastic movable supports between the second drive gear and gear-box shaft core, can have
Effect ground prevents the second drive gear from but rotating should not rotate, and realizes that accurately two-door open and close is controlled.
（2）The anti-follower of the present invention is hidden in inside the second drive gear, and compact conformation will not take up space more.
（3）The anti-follower of the present invention produces the coupling mechanism force of radial direction using metal coil spring, compacted in the absence of plastics
Change problem, it is good with the uniformity of dynamic torque to prevent, and long-term undamped, and service life is long.If only leaning on plastic petals 902 and shaft core
The elastic force that 301 interference fit is produced is servo-actuated prevent, and first plastics are hardened to change and prevented with dynamic torque under low temperature in refrigerator, second
Plastics be used for a long time can creep compliance and make anti-servo-actuated torque decay or even fail.Therefore, using metal coil spring and it is allowed to
It is vital that interference fit, which is socketed on the outside of flexible flaps group,.
（4）The anti-follower of the present invention is coordinated using the tappet of circular arc and two grooves of circular arc, and wearability is good,
Long working life.
Brief description of the drawings
Fig. 1 is a kind of two-door electric throttle device general structure schematic diagram with anti-follower structure of the present invention.
Fig. 2 is the left view that Fig. 1 removes the first framework and the first door-plate, i.e. gear-box general structure schematic diagram.
Fig. 3 is Fig. 2 A-A sectional views, i.e., along drive gear and the sectional view of driven gear axis.
Fig. 4 is the front view of the second drive gear shown in Fig. 2.
Fig. 5 is Fig. 4 B-B sectional views.
Fig. 6 is the second drive gear and the second driven sector gear shown in Fig. 2 in the case where the second door-plate is closed
Relative position schematic diagram.
Fig. 7 is the phase of the second drive gear and the second driven sector gear under the second door-plate opening shown in Fig. 2
To position view.
Fig. 8 is the dimensional structure diagram of the first drive gear shown in Fig. 3.
Fig. 9 is the dimensional structure diagram of the second drive gear shown in Fig. 3.
Figure 10 is the dimensional structure diagram of the first driven sector gear shown in Fig. 3.
Figure 11 is the dimensional structure diagram of the second driven sector gear shown in Fig. 3.
Label is represented in figure：1st, the first framework, the 2, first door-plate, 3, gear-box, 301, shaft core, 302, baffle plate, 311, axle
The groove of core first, 312, the groove of shaft core second, the 4, second door-plate, 5, second framework, 6, motor, 7, little gear, the 8, first driving
Gear, 801, canine tooth wheel portion, the 802, first partial gear portion, the 803, second partial gear portion, the 9, second drive gear,
901st, the 3rd partial gear portion, 902, flexible flaps, 903, circular arc tappet, the 904, first limited block, 905, second is spacing
Block, 906, block, the 907, the 4th partial gear portion, the 10, first driven sector gear, the 101, the 5th partial gear portion,
102nd, the 6th partial gear portion, 103, first rotating shaft, the 11, second driven sector gear, the 111, the 7th partial gear portion,
112nd, the 8th partial gear portion, the 113, second rotating shaft, 12, helical spring.
Embodiment
The present invention is further elaborated by example below.
Referring to shown in Fig. 1 to Figure 11, a kind of two-door electric throttle device with anti-follower structure, including the first framework 1,
Driven in first door-plate 2, gear-box 3, the second door-plate 4 and second framework 5, the gear-box 3 provided with motor 6, little gear 7, first
Moving gear 8, the second drive gear 9, the first driven sector gear 11 of driven sector gear 10 and second, the He of the first drive gear 8
Second drive gear 9 take gear-box shaft core 301 as coaxial, the first drive gear 8 and the pivot bush unit of gear-box shaft core 301, first
Drive gear 8 is respectively equipped with canine tooth wheel portion 801, the first partial gear portion 802 and the second partial gear portion from top to bottom
803, the canine tooth wheel portion 801 is engaged with the little gear 7, and little gear 7 is fixed on the output shaft of motor 6, and described first
Partial gear portion 802 is engaged with the 5th partial gear portion 101 of the first driven sector gear 10, and described second is incomplete
Gear part 803 is engaged with the 6th partial gear portion 102 of the first driven sector gear 10, and the second drive gear 9 is from top to bottom
The 3rd partial gear portion 901 and the 4th partial gear portion 907 are respectively equipped with, the upper top of the second drive gear 9 is provided with block
906, and it is respectively equipped with the both sides of the 4th partial gear portion 907 first limited block 904 and the second limited block 905, the described 3rd
Partial gear portion 901 is engaged with the 7th partial gear portion 111 of the second driven sector gear 11, the 4th incomplete tooth
Wheel portion 907 is engaged with the 8th partial gear portion 112 of the second driven sector gear 11, the first driven sector gear 10
First rotating shaft 103 is fixedly connected with the door-hinge of first door-plate 2, the second rotating shaft 113 of the second driven sector gear 11
It is fixedly connected with the door-hinge of above-mentioned second door-plate 4, provided with one group of axial annular cloth in the axis hole of second drive gear 9
The flexible flaps 902 of row, helical spring is equipped with the annular dead slot that the flexible flaps group is formed with interference fit
12, provided with a circular arc tappet 903 in any flexible flaps 902 in the flexible flaps group, in the gear-box shaft core
Two the first grooves of the shaft core matched with the circular arc tappet 903 311 and shaft core are respectively equipped with 301 same level positions
Second groove 312, constitutes anti-follower, and second drive gear 9 is movable even for elasticity with the gear-box shaft core 301
Connect.
When the second drive gear 9, which is rotated counterclockwise, the first limited block 904 is encountered gear-box baffle plate 302, the circular arc
Shape tappet 903 is just fallen into first groove of shaft core 311.Make the second limited block when the second drive gear 9 is rotated clockwise
905 when encountering gear-box baffle plate 302, and the circular arc tappet 903 is just fallen into second groove of shaft core 312.The bullet
Property limb group is made up of 2~10 flexible flaps 902, preferably 5~8.The helical spring 12 be by spring steel wire coiling and
Into the helical spring（12）Central diameter be slightly smaller than second drive gear（9）Annular dead slot average diameter.Described
One drive gear 8, the second drive gear 9, the first driven sector gear 10, the second driven sector gear 11 are molded, institute
Gear-box 3 is stated to form with the integrated injection molding of second framework 5.
The flexible flaps group of the present embodiment is from five limbs 902, and it has certain flexibility, variable within the specific limits
Shape, turns into elastic active link, five flexible flaps of helical spring 12 pair between the second drive gear 9 and gear-box shaft core 301
902 produce the deformation for pointing to the contraction of shaft core 301.Upon start up, tappet 903 is needed from the groove of the first groove 311 or second
Climbed out of in 312, flexible flaps 902 need to be flared out a bit, and the internal diameter of helical spring 12 will magnify a bit, to overcome this bullet
Spring force is accomplished by larger detent torque.In normal rotation, tappet 903 and remaining four flexible flaps 902 are because of helical spring
12 elastic force effect can produce certain frictional force to the face of cylinder of shaft core 301, thus can produce a relatively small resistance turn
Square.Hereby it is achieved that the servo-actuated purpose of anti-second driven sector gear 11.Pass through the line footpath of appropriately designed helical spring 12, circle
Number and matching allowance, can obtain required suitable running resistance torque；By appropriately designed first, second groove 311,
312 and the arc diameter and depth of tappet 903, required suitable larger detent torque can be obtained.
There is the course of work of the two-door electric throttle device of anti-follower structure to be such for this：The motor 6 uses band
The stepper motor of gear reduction.Following four kinds of working conditions can be achieved：
（a）Original state（First and second door-plate full-shut position）：Pass through the pulse phase sequence for controlling stepper motor and enough pulses
Number, makes little gear 7 drive the first drive gear 8 to rotate counterclockwise by engaging gear wheel 801, the second partial gear portion 803
Driving the 6th partial gear portion 102 of the first driven sector gear 10 rotates clockwise the first driven sector gear 10, nibbles
The circumferential section in the first partial gear portion 802 is clamped by two tooth forms in the 5th partial gear portion 101 after conjunction, therefore the
One drive gear 8 continues to dally and the first driven sector gear 10 keeps not turning, meanwhile, the first drive gear 8 by second not
Complete gear part 803 drives the block 906 of the second drive gear 9 to be allowed to also rotate counterclockwise, until the first limited block 904 is encountered
Gear-box baffle plate 302, now the second driven sector gear 11 also move clockwise to the position of the end, the 4th partial gear portion
8th partial gear portion 112 of 907 the second driven sector gears 11 of drive rotates clockwise the second driven sector gear 11,
The circumferential section in the 3rd partial gear portion 901 is clamped by two tooth forms in the 7th partial gear portion 111 after engagement, therefore
Second drive gear 9 continues to dally and the second driven sector gear 11 keeps not turning, and finally makes the one the second drive gears 8,9 equal
Go to the end counterclockwise and the first door-plate 2 and the second door-plate 4 are in closed mode.More umber of pulse can be applied to ensure
In original state, the stall of motor 6 will not be damaged to motor or transmission mechanism.
（b）First door-plate opens the second door-plate closed state：Since original state, by the pulse reverse for controlling stepper motor
Phase sequence and default umber of pulse, make little gear 7 drive the first drive gear 8 to rotate clockwise 240 ° by engaging gear wheel 801
Angle.In 120 ° wherein~240 ° of angular ranges, the second partial gear portion 803 of the first drive gear 8 driving first from
6th partial gear portion 102 of dynamic sector gear 10, the first driven sector gear 10 is rotated counterclockwise 90 ° of angles makes first
Door-plate 2 becomes open state, and the circumferential section in the first partial gear portion 802 is by the 5th partial gear portion 101 after engagement
Two tooth forms are clamped, thus the first drive gear 8 continue dally and the first driven sector gear 10 keeps not turning.Meanwhile, first
Second partial gear portion 803 of drive gear 8 is with the block 906 of the second drive gear 9 also from the contact in counter clockwise direction face
It is changed into the contact in clockwise direction face, but due to the effect of anti-follower, the second drive gear 9 does not follow motion, still kept
Original state, the second door-plate 4 is still closed.
（c）Two-door full-gear：Since original state, by controlling the pulse reverse phase sequence of stepper motor and default
Umber of pulse, makes little gear 7 drive the first drive gear 8 to rotate clockwise 360 ° of angles by engaging canine tooth wheel portion 801（Or
Say, from（c）State starts to turn hexagonal angle degree clockwise again）.In 120 ° wherein~240 ° of angular ranges, the first drive gear
8 the first partial gear portion 803 drives the 6th partial gear portion 102 of the first driven sector gear 10, makes first driven
Sector gear 10, which rotates counterclockwise 90 ° of angles, makes the first door-plate 2 become open state, the first partial gear portion 802 after engagement
Circumferential section clamped by two tooth forms in the 5th partial gear portion 101, therefore the first drive gear 8 be rotated further and first
Driven sector gear 10 keeps not turning.In 240 °~360 ° angular ranges, the block 906 of the second drive gear 9 is driven by first
Second partial gear portion 803 of moving gear 8 drives and has turned 120 ° clockwise so that the 4th of the second drive gear 9 is endless
All gear portion 907 drives the 8th partial gear portion 112 of the second driven sector gear 11, makes the second driven sector gear 11 inverse
Hour hands rotate 90 ° and the 3rd door-plate 4 is also become open state, the circumferential section quilt in the 3rd partial gear portion 901 after engagement
Two tooth forms in the 7th partial gear portion 111 are clamped, therefore the second drive gear 9 can continue to dally and the second driven sector
Wheel 11 keeps not turning.
（d）First door-plate closes the second door-plate open state：From（a）State starts, by the pulse reverse for controlling stepper motor
Phase sequence and default umber of pulse, make little gear 7 drive the first drive gear 8 to rotate clockwise by engaging canine tooth wheel portion 801
360 ° of angles reach electric throttle device（c）Two-door full-gear, then by controlling the positive phase sequence of pulse of stepper motor and pre-
If umber of pulse, make little gear 7 by engaging first drive gear 8 of the driving of canine tooth wheel portion 801 counterclockwise toward 240 ° of angles of back rotation,
In 120 °~240 ° angular ranges toward back rotation, the second partial gear portion 803 of the first drive gear 8 driving first from
6th partial gear portion 102 of dynamic sector gear 10, the first driven sector gear 10 is rotated clockwise 90 ° makes the first door-plate
2 become off status, and the circumferential section in the first partial gear portion 802 is by two of the 5th partial gear portion 101 after engagement
Tooth form is clamped, thus the first drive gear 8 is rotated further and the first driven sector gear 10 keeps not turning.At the same time, first
Second partial gear portion 803 of drive gear 8 is with the block 906 of the second drive gear 9 also from the contact in clockwise direction face
It is changed into the contact in counter clockwise direction face, but due to the effect of anti-follower, the second drive gear 9 does not follow motion, second
Plate 4 is still remained on.
It is above-mentioned due to realizing（a）、（b）、（c）、（d）Four kinds of combinations of states, it is thus achieved that can be appointed with a motor
The opening and closing of meaning two door-plates of control.
Claims (6)
1. a kind of two-door electric throttle device with anti-follower structure, including the first framework（1）, the first door-plate（2）, gear-box
（3）, the 2nd door-plate（4）With the 2nd framework（5）, the gear-box（3）It is interior to be provided with motor（6）, little gear（7）, the first drive gear
（8）, the second drive gear（9）, the first driven sector gear（10）With the second driven sector gear（11）, the first drive gear
（8）With the second drive gear（9）With gear-box shaft core（301）For coaxial, the first drive gear（8）With gear-box shaft core（301）
Pivot bush unit, the first drive gear（8）Canine tooth wheel portion is respectively equipped with from top to bottom（801）, the first partial gear portion（802）With
Second partial gear portion（803）, the canine tooth wheel portion（801）With the little gear（7）Engagement, little gear（7）It is fixed on institute
State motor（6）On output shaft, the first partial gear portion（802）With the first driven sector gear（10）It is the 5th incomplete
Gear part（101）Engagement, the second partial gear portion（803）With the first driven sector gear（10）The 6th incomplete tooth
Wheel portion（102）Engagement, the second drive gear（9）The 3rd partial gear portion is respectively equipped with from top to bottom（901）It is endless with the 4th
All gear portion（907）, the second drive gear（9）Upper top is provided with block（906）, and in the 4th partial gear portion（907）Two
Side is respectively equipped with the first limited block（904）With the second limited block（905）, the 3rd partial gear portion（901）With second from
Dynamic sector gear（11）The 7th partial gear portion（111）Engagement, the 4th partial gear portion（907）It is driven with second
Sector gear（11）The 8th partial gear portion（112）Engagement, the first driven sector gear（10）First rotating shaft
（103）With first door-plate（2）Door-hinge be fixedly connected, the second driven sector gear（11）The second rotating shaft（113）
With above-mentioned second door-plate（4）Door-hinge be fixedly connected, it is characterised in that：In second drive gear（9）Axis hole in be provided with
The flexible flaps that one group of axial annular is arranged（902）, matched somebody with somebody in the annular dead slot that the flexible flaps group is formed with interference
Conjunction mode is equipped with helical spring（12）, any flexible flaps in the flexible flaps group（902）It is convex provided with a circular arc
Son（903）, in the gear-box shaft core（301）Two and the circular arc tappet are respectively equipped with same level position（903）
The groove of shaft core first matched（311）With the groove of shaft core second（312）, constitute anti-follower, second drive gear
（9）With the gear-box shaft core（301）For elastic movable supports.
2. the two-door electric throttle device according to claim 1 with anti-follower structure, it is characterised in that：When the second drive
Moving gear（9）Rotating counterclockwise makes the first limited block（904）Encounter gear-box baffle plate（302）When, the circular arc tappet（903）
Just fall into the groove of shaft core first（311）In.
3. the two-door electric throttle device according to claim 1 with anti-follower structure, it is characterised in that：When the second drive
Moving gear（9）Rotating clockwise makes the second limited block（905）Encounter gear-box baffle plate（302）When, the circular arc tappet（903）
Just fall into the groove of shaft core second（312）In.
4. the two-door electric throttle device according to claim 1 with anti-follower structure, it is characterised in that：The elasticity
Limb group is by 2~10 flexible flaps（902）Composition, preferably 5~8.
5. the two-door electric throttle device according to claim 1 with anti-follower structure, it is characterised in that：The spiral
Spring（12）It is to be formed by spring steel wire coiling, the helical spring（12）Central diameter be slightly smaller than second drive gear（9）'s
The average diameter of annular dead slot.
6. the two-door electric throttle device according to claim 1 with anti-follower structure, it is characterised in that：Described first
Drive gear（8）, the second drive gear（9）, the first driven sector gear（10）, the second driven sector gear（11）Injection and
Into the gear-box（3）With second framework（5）Integrated injection molding is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108613068A (en) * | 2018-05-29 | 2018-10-02 | 深圳市华科莱特电子有限公司 | A kind of LED bay light that multi-angle is luminous |
| CN109708364A (en) * | 2018-09-28 | 2019-05-03 | 青岛海尔股份有限公司 | Portable freezing device |
| CN109708362A (en) * | 2018-09-28 | 2019-05-03 | 青岛海尔股份有限公司 | Portable freezing device and Portable freezing device refrigeration control method |
| CN110057153A (en) * | 2018-01-18 | 2019-07-26 | 浙江三花智能控制股份有限公司 | A kind of damper |
| CN113028715A (en) * | 2019-12-25 | 2021-06-25 | 浙江三花智能控制股份有限公司 | Air door device |
| CN113028714A (en) * | 2019-12-25 | 2021-06-25 | 浙江三花智能控制股份有限公司 | Air door device |
| WO2022151559A1 (en) * | 2021-01-18 | 2022-07-21 | 杜泽儒 | Gear two-way clutch mechanism |
| CN114777373A (en) * | 2022-04-26 | 2022-07-22 | 浙江三花智能控制股份有限公司 | Air door device of refrigerator |
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| CN114777373A (en) * | 2022-04-26 | 2022-07-22 | 浙江三花智能控制股份有限公司 | Air door device of refrigerator |
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