CN109751421B - Direct-drive air door mechanism - Google Patents
Direct-drive air door mechanism Download PDFInfo
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- CN109751421B CN109751421B CN201711059806.8A CN201711059806A CN109751421B CN 109751421 B CN109751421 B CN 109751421B CN 201711059806 A CN201711059806 A CN 201711059806A CN 109751421 B CN109751421 B CN 109751421B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 59
- 239000004020 conductor Substances 0.000 claims description 18
- 230000008859 change Effects 0.000 claims description 9
- 239000002775 capsule Substances 0.000 claims description 6
- 230000005294 ferromagnetic effect Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000005291 magnetic effect Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Valve Device For Special Equipments (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention provides a direct-drive air door mechanism, which comprises a valve channel (501), a valve plate (502), a valve rotating shaft (503), a first magnet piece (504), a second magnet piece (505) and a rotation clamping mechanism, wherein the valve rotating shaft is arranged on the valve channel; the valve plate (502) is arranged on the valve rotating shaft (503), and the valve plate (502) can close or open the valve channel (501) along with the rotation of the valve rotating shaft (503); the first magnet piece (504) extends from the valve rotating shaft (503) and forms an included angle with the valve plate (502); the second magnet piece (505) is arranged on the valve rotating shaft (503) and/or the valve plate (502); the rotary clamping mechanism is connected with a valve rotating shaft (503). The invention can realize the detection and control of the opening and closing degree of the rotation angle of the valve rotating shaft (503) by controlling the rotation angle of the rotating body (200).
Description
Technical Field
The present invention relates to clamping mechanisms, and in particular to direct drive damper mechanisms.
Background
In the prior art, a mode of combining a motor with a speed reducer is adopted for rotation control, however, redundancy exists in control of the mode, the requirement on the performance of the speed reducer is high, the mode depends on the imported speed reducer, the cost is increased, the size and the shape of the motor are large, and the motor is difficult to be suitable for application scenes such as long and thin gaps.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a direct-drive air door mechanism.
The invention provides a direct-drive air door mechanism, which comprises a valve channel 501, a valve plate 502, a valve rotating shaft 503, a first magnet piece 504, a second magnet piece 505 and a rotating clamping mechanism;
the valve plate 502 is mounted on the valve rotating shaft 503, and the valve plate 502 can close or open the valve channel 501 along with the rotation of the valve rotating shaft 503;
the first magnet member 504 extends from the valve rotating shaft 503 and forms an included angle with the valve plate 502;
the second magnet 505 is disposed on the valve shaft 503 and/or the valve plate 502;
the rotation clamping mechanism is coupled to the valve shaft 503.
Preferably, the first magnet member 504 is a ferromagnetic body and the second magnet member 505 is a permanent magnet body; alternatively, the first magnet member 504 is a permanent magnet and the second magnet member 505 is a ferromagnetic body; alternatively, the first magnet piece 504 is a permanent magnet and the second magnet piece 505 is a permanent magnet;
the first magnet piece 504 is a rod piece, and the first magnet piece 504 is fixedly connected with the valve rotating shaft 503 and is perpendicular to the valve rotating shaft 503 or forms an included angle;
the electromagnetic coil in the valve channel 501 can attract or repel the first magnet 504 and the second magnet 505, so that the valve rotating shaft 503 is driven to rotate by the first magnet 504.
Preferably, the rotation clamping mechanism comprises a rotation controllable stopper 100, a rotator 200;
the rotation controllable stopper 100 has a rotation body accommodating hole 101;
the rotor 200 is inserted in the rotor accommodating hole 101;
in the circumferential rotation direction of the rotor 200, the rotation-controllable stopper 100 can lock and release the rotor 200;
one end of the rotator 200 is fixedly connected with one end of the valve rotating shaft 503.
Preferably, the rotation clamping mechanism comprises an angle sensor;
the angle sensor includes a conductor 506; the conductor 506 is fastened to the controllable stopper 100;
the conductor 506 is connected to the base electrode V0, the first electrode V1, and the second electrode V2;
the basic electrode V0, the first electrode V1 are in a fixed position on the conductor 506;
one end of the second electrode V2 is fixedly connected to the rotator 200, and the other end of the second electrode V2 is in sliding contact with the conductor 506.
Preferably, the rotation of the valve rotating shaft 503 drives the second electrode V2 to rotate synchronously through the rotator 200, so as to change the contact position of the other end of the second electrode V2 on the conductor 506, and further change the resistance between the second electrode V2 and the basic electrode V0.
Preferably, the wall of the rotor accommodating hole 101 is provided with a recessed first passage groove 102 and/or second passage groove 103;
a first moving contact 104 is arranged in the first channel slot 102;
a second moving contact 105 is arranged in the second channel 103;
the first channel 102 is formed from deep to shallow along the first circumferential direction to form a deep end and a shallow end;
the second channel 103 is formed from deep to shallow along the second circumferential direction to form a deep end and a shallow end; wherein the second circumferential direction and the first circumferential direction are opposite directions to each other;
the first moving contact 104 can move to the shallow end and the deep end of the first channel slot 102 to lock and release respectively;
the second moving contact body 105 can move to the shallow end and the deep end of the second channel slot 103 so as to lock and release respectively;
shallow ends of the first channel groove 102 and the second channel groove 103 are connected with each other, the first channel groove 102 and the second channel groove 103 are arranged at intervals, or deep ends of the first channel groove 102 and the second channel groove 103 are connected with each other;
the first channel 102 is formed from deep to shallow along the first axial direction to form a deep end and a shallow end;
the second channel 103 is formed from deep to shallow along the second axial direction to form a deep end and a shallow end; wherein the second axial direction and the first axial direction are opposite directions;
the deep end and the shallow end of the first channel groove 102 formed along the first axial direction are respectively positioned at the same position on the deep end and the shallow end of the first channel groove 102 formed along the first circumferential direction;
the deep end and the shallow end of the second channel groove 103 formed along the second axial direction are respectively positioned at the same position on the deep end and the shallow end of the second channel groove 103 formed along the second circumferential direction;
the shallow and deep ends are both relative to the recessed depth of the wall of the rotor accommodating hole 101; the radial spacing between the bottom surface of the groove at the shallow end and the outer side surface of the moving body 200 is smaller than the radial spacing between the bottom surface of the groove at the deep end and the outer side surface of the moving body 200;
when the first moving contact 104 moves to the shallow end of the first channel slot 102, the first moving contact 104 is clamped together by the slot bottom surface at the shallow end and the outer side surface of the moving body 200, preventing the moving body 200 from rotating in the first circumferential direction; when the first moving contact body 104 moves to the deep end of the first channel slot 102, the first moving contact body 104 is not clamped by the bottom surface of the slot at the deep end and the outer side surface of the moving body 200, and the moving body 200 is allowed to rotate along the first circumferential direction;
when the second moving contact body 105 moves to the shallow end of the second channel groove 103, the second moving contact body 105 is clamped together by the groove bottom surface at the shallow end and the outer side surface of the moving body 200, preventing the moving body 200 from rotating in the first circumferential direction; when the second moving contact body 105 moves to the deep end of the second channel groove 103, the second moving contact body 105 is not clamped by the groove bottom surface at the deep end and the outer side surface of the moving body 200, and the moving body 200 is allowed to rotate in the second circumferential direction;
in the first and second passage grooves 102, 103 connected to each other, the first and second moving contacts 104, 105 are connected to each other by the elastic body 400, or the first and second moving contacts 104, 105 are connected to each other by the elastic body 400 at a deep or shallow end.
Preferably, the rotation clamping mechanism comprises a drive mechanism 300;
driven by the driving mechanism 300:
the first moving contact 104 can move to the shallow end and the deep end of the first channel slot 102 to perform the locking and releasing in the first circumferential direction respectively;
the second moving contact 105 is movable to the shallow and deep ends of the second channel 103 to perform said locking and releasing in the second circumferential direction, respectively;
the controllable stopper 100 constitutes a stator, the rotator 200 constitutes a mover, and a torsion spring is provided between the stator and the mover;
the rotation clamping mechanism comprises a sliding groove 601, a sliding block 602, a pre-tightening spring 603 and a pre-tightening force adjusting stud 604; the two sliding blocks 602 are sequentially arranged in the sliding groove 601 along the radial direction of the rotating body 200, and the two sliding blocks 602 are connected through a pre-tightening spring 603; the two sliding blocks are clamped in the gap between the pretightening force adjusting stud 604 and the rotator 200, and the pretightening spring 603 stretches or shortens in the radial direction of the rotator 200; the pre-tightening force adjusting stud 604 can change the size of a gap between the rotating body 200 by rotating; the contact surface of the sliding block 602 contacted with the rotator 200 is an arc surface;
alternatively, the rotation clamping mechanism includes a mounting groove 605, an acting magnet, an acted upon member; the acting magnet is provided in the mounting groove 605, and the acted member is provided between the side wall of the rotor 200 and the wall of the rotor accommodating hole 101; the acting magnet is an electromagnet 608 or a permanent magnet 607, wherein the permanent magnet 607 constitutes a slider that can slide in the mounting groove 605 in the radial direction of the rotor 200; the acted-on component is a magnetorheological component 606, wherein the magnetorheological component 606 comprises a capsule and a magnetorheological fluid filling the capsule; or the acted part is a C-shaped clamp, wherein the middle part of the C-shaped clamp is fixedly connected with the hole wall of the rotor accommodating hole 101, and the two ends of the C-shaped clamp are free ends.
Preferably, the rotational clamping mechanism comprises a first magnet stop 301 and/or a second magnet stop 302;
the first magnet block 301 is co-located with the first moving contact 104 in the first passage groove 102;
the second magnet block 302 is co-located with the second moving contact 105 in the second channel slot 103;
after the first and second magnet stoppers 301 and 302 are electromagnetically driven by the driving mechanism 300, the first magnet stopper 301 can push the first moving contact body 104 to the shallow or deep end of the first channel slot 102, and the second magnet stopper 302 can push the second moving contact body 105 to the shallow or deep end of the second channel slot 103.
Preferably, an elastic member 400 is connected between the first magnet stopper 301 and the second magnet stopper 302.
Preferably, the first moving contact 104 is tightly connected with the first magnet block 301 to form a first combined body, so that the first combined body can only translate but not rotate;
the second moving contact 105 is fastened to the second magnet block 302 to form a second assembly, so that the second assembly can only translate and cannot rotate.
Compared with the prior art, the invention has the following beneficial effects:
the present invention accommodates and controls the locking and release of the rotor 200 in the first and second circumferential directions by rotating the controllable stopper 100, and in particular enables flexible control of bi-directional or unidirectional rotation by the first and second passage grooves 102 and 103 cooperating with a moving contact, e.g. a sphere.
In the present invention, on the one hand, the rotation controllable stopper 100 and the rotator 200 rotate synchronously, and the rotation controllable stopper 100 can realize the locking or releasing of the rotation of the valve rotating shaft 503 through the control of the rotator 200, on the other hand, the rotation angle of the valve rotating shaft 503 can be obtained through measuring the rotation angle of the rotator 200, and further the control of the rotation angle of the rotator 200 can realize the control of the rotation angle of the valve rotating shaft 503.
In the present invention, since the resistance between the first electrode V1 and the basic electrode V0 is fixed, and the resistance between the second electrode V2 and the basic electrode V0 is changed, the voltage difference obtained by subtracting the voltage between the second electrode V2 and the basic electrode V0 from the voltage between the first electrode V1 and the basic electrode V0 reflects the rotation angle and the angle of the valve shaft 503, so that the rotation angle and the angle of the valve plate 502 can be known. The degree of opening and closing of the valve plate 502 can be detected and controlled.
The deep end and the shallow end of the first channel groove 102 formed along the first axial direction are respectively positioned at the same position on the deep end and the shallow end of the first channel groove 102 formed along the first circumferential direction; the deep end and the shallow end of the second channel 103 formed along the second axial direction are respectively at the same position on the deep end and the shallow end of the second channel 103 formed along the second circumferential direction. Thus, the translational lockup is achieved while the rotator 200 is locked for rotation.
The controllable stopper 100 constitutes a stator, the rotator 200 constitutes a mover, and a torsion spring is provided between the stator and the mover. Thereby stabilizing the rotation of the mover.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
fig. 1, 2 and 3 are schematic structural diagrams.
Fig. 4 and 7 are schematic diagrams in a locked state.
Fig. 5 and 6 are schematic views in a released state.
Fig. 8 is a basic embodiment of the rotation clamping mechanism provided by the present invention.
Fig. 9 to 24 show different preferred embodiments of the basic embodiment of the rotation clamping mechanism provided by the present invention.
Fig. 14 is a cross-sectional view of fig. 12 from A-A, fig. 15 is a cross-sectional view of fig. 13 from B-B, and fig. 18 to 21 are schematic diagrams of fig. 17.
Fig. 25, 26 and 27 show three preferred structural diagrams for providing the pretension force, respectively.
The figure shows:
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
Basic embodiment
As shown in fig. 1, the present invention provides a direct-drive damper mechanism, which includes a valve channel 501, a valve plate 502, a valve rotating shaft 503, a first magnet 504, a second magnet 505, and a rotation clamping mechanism;
the valve plate 502 is mounted on the valve rotating shaft 503, and the valve plate 502 can close or open the valve channel 501 along with the rotation of the valve rotating shaft 503;
the first magnet member 504 extends from the valve rotating shaft 503 and forms an included angle with the valve plate 502;
the second magnet 505 is disposed on the valve shaft 503 and/or the valve plate 502;
the rotation clamping mechanism is coupled to the valve shaft 503.
The first magnet piece 504 is a ferromagnetic body and the second magnet piece 505 is a permanent magnet; alternatively, the first magnet member 504 is a permanent magnet and the second magnet member 505 is a ferromagnetic body; alternatively, the first magnet piece 504 is a permanent magnet and the second magnet piece 505 is a permanent magnet. The first magnet member 504 is symmetrical or asymmetrical about the valve axis of rotation 503.
The first magnet piece 504 is a rod piece, and the first magnet piece 504 is fixedly connected with the valve rotating shaft 503 and is perpendicular to the valve rotating shaft 503 or forms an included angle;
the electromagnetic coil in the valve channel 501 can attract or repel the first magnet 504 and the second magnet 505, so that the valve rotating shaft 503 is driven to rotate by the first magnet 504. Because of the included angle between the first magnet piece 504 and the second magnet piece 505, when the electromagnetic coil in the valve channel 501 has no magnetic moment on one, the other has magnetic moment, so that the rotation of the valve rotating shaft 503 can be controlled.
More specifically, a basic embodiment of the rotation clamping mechanism is shown in fig. 8.
The rotation clamping mechanism comprises a rotation controllable stopper 100 and a rotator 200;
the rotation controllable stopper 100 has a rotation body accommodating hole 101;
the rotor 200 is inserted in the rotor accommodating hole 101;
in the circumferential rotation direction of the rotor 200, the rotation-controllable stopper 100 can lock and release the rotor 200;
one end of the rotator 200 is fixedly connected with one end of the valve rotating shaft 503.
Thus, on the one hand, the rotation controllable stopper 100 rotates synchronously with the rotating body 200, and the rotation controllable stopper 100 can realize locking or releasing of the rotation of the valve rotating shaft 503 through controlling the rotating body 200, on the other hand, the rotation angle of the valve rotating shaft 503 can be obtained through measuring the rotation angle of the rotating body 200, and further, the rotation angle of the rotating body 200 can be controlled through controlling the rotation angle of the valve rotating shaft 503.
As shown in fig. 3, the rotational clamping mechanism includes a conductor 506; the conductor 506 is fastened to the controllable stopper 100;
the conductor 506 is connected to the base electrode V0, the first electrode V1, and the second electrode V2;
the basic electrode V0, the first electrode V1 are in a fixed position on the conductor 506;
one end of the second electrode V2 is fixedly connected to the rotator 200, and the other end of the second electrode V2 is in sliding contact with the conductor 506.
The rotation of the valve rotating shaft 503 drives the second electrode V2 to synchronously rotate through the rotator 200, so as to change the contact position of the other end of the second electrode V2 on the conductor 506, and further change the resistance between the second electrode V2 and the basic electrode V0.
Since the resistance between the first electrode V1 and the basic electrode V0 is fixed, and the resistance between the second electrode V2 and the basic electrode V0 is changed, the voltage difference obtained by subtracting the voltage between the second electrode V2 and the basic electrode V0 from the voltage between the first electrode V1 and the basic electrode V0 reflects the rotation angle and the angle of the valve shaft 503, and the rotation angle and the angle of the valve plate 502 can be known. The degree of opening and closing of the valve plate 502 can be detected and controlled.
Fig. 4 and 7 are schematic diagrams in the locked state.
Fig. 5 and 6 are schematic diagrams in the released state.
The specific principle of the locking and releasing will be described in detail by the following preferred examples.
Preferred examples of the basic embodiment of the present invention will be specifically described below.
Preferred embodiments
The wall of the rotor accommodating hole 101 is provided with a concave first channel groove 102 and/or a second channel groove 103;
a first moving contact 104 is arranged in the first channel slot 102;
a second moving contact 105 is arranged in the second channel 103;
the first channel 102 is formed from deep to shallow along the first circumferential direction to form a deep end and a shallow end;
the second channel 103 is formed from deep to shallow along the second circumferential direction to form a deep end and a shallow end; wherein the second circumferential direction and the first circumferential direction are opposite directions to each other;
the first moving contact 104 can move to the shallow end and the deep end of the first channel slot 102 to lock and release respectively;
the second moving contact 105 can move to the shallow and deep ends of the second channel 103 for the locking and releasing, respectively.
As in fig. 8, 9, 10 and 11, in a two-way lock-up state.
As in fig. 12, 13, 16, 17, in a bi-directional release state.
The bidirectional direction refers to a first circumferential direction and a second circumferential direction.
In a variation, a one-way locking or one-way release state may also be achieved, i.e. one of the first circumferential direction and the second circumferential direction is a locking state, and the other is a release state.
Referring to fig. 12 and 14, the first channel 102 is formed from a deep end to a shallow end along the first axial direction; the second channel 103 is formed from deep to shallow along the second axial direction to form a deep end and a shallow end; wherein the second axial direction and the first axial direction are opposite directions; the deep end and the shallow end of the first channel groove 102 formed along the first axial direction are respectively positioned at the same position on the deep end and the shallow end of the first channel groove 102 formed along the first circumferential direction; the deep end and the shallow end of the second channel 103 formed along the second axial direction are respectively at the same position on the deep end and the shallow end of the second channel 103 formed along the second circumferential direction. Thus, the translational lockup is achieved while the rotator 200 is locked for rotation.
As shown in fig. 9, the shallow ends of the first channel 102 and the second channel 103 are connected to each other. Or as shown in fig. 3, the first channel slot 102 and the second channel slot 103 are arranged at intervals. Or as shown in fig. 4, the deep ends of the first channel groove 102 and the second channel groove 103 are connected with each other. Or as shown in fig. 9, the first channel slot 102 is communicated with the second channel slot 103, and the first channel slot 102 and the second channel slot 103 are arranged at intervals.
As shown in fig. 12, 13, 14, and 15, the shallow and deep ends are each recessed with respect to the wall of the rotor accommodating hole 101. The radial spacing between the bottom surface of the groove and the outer surface of the moving body 200 at the shallow end is smaller than the radial spacing between the bottom surface of the groove and the outer surface of the moving body 200 at the deep end.
When the first moving contact 104 moves to the shallow end of the first channel slot 102, the first moving contact 104 is clamped together by the slot bottom surface at the shallow end and the outer side surface of the moving body 200, preventing the moving body 200 from rotating in the first circumferential direction; when the first moving contact body 104 moves to the deep end of the first channel slot 102, the first moving contact body 104 is not clamped by the bottom surface of the slot at the deep end and the outer side surface of the moving body 200, and the moving body 200 is allowed to rotate along the first circumferential direction;
when the second moving contact body 105 moves to the shallow end of the second channel groove 103, the second moving contact body 105 is clamped together by the groove bottom surface at the shallow end and the outer side surface of the moving body 200, preventing the moving body 200 from rotating in the first circumferential direction; when the second moving contact body 105 moves to the deep end of the second channel groove 103, the second moving contact body 105 is not clamped by the groove bottom surface at the deep end and the outer side surface of the moving body 200, and the moving body 200 is allowed to rotate in the second circumferential direction;
as shown in fig. 17, in the first and second passage grooves 102, 103 connected to each other, the first and second moving contacts 104, 105 are connected to each other by an elastic body 400, or the first and second moving contacts 104, 105 are connected to each other by a deep or shallow end by an elastic body 400.
As shown in fig. 18, 19, 20, 21, the rotation clamp mechanism includes a drive mechanism 300;
under the driving of the driving mechanism 300,
the first moving contact 104 can move to the shallow end and the deep end of the first channel slot 102 to perform the locking and releasing in the first circumferential direction respectively;
the second moving contact 105 is movable to the shallow and deep ends of the second channel 103 for said locking and releasing, respectively, in the second circumferential direction.
Preferably, the drive mechanism 300 is an electromagnetic drive mechanism.
As shown in fig. 22, 23, 24, the rotation clamping mechanism includes a first magnet stop 301 and/or a second magnet stop 302;
the first magnet block 301 is co-located with the first moving contact 104 in the first passage groove 102;
the second magnet block 302 is co-located with the second moving contact 105 in the second channel slot 103;
after the first and second magnet stoppers 301 and 302 are electromagnetically driven by the driving mechanism 300, the first magnet stopper 301 can push the first moving contact body 104 to the shallow or deep end of the first channel slot 102, and the second magnet stopper 302 can push the second moving contact body 105 to the shallow or deep end of the second channel slot 103.
An elastic member 400 is connected between the first magnet stopper 301 and the second magnet stopper 302.
The controllable stopper 100 constitutes a stator, the rotator 200 constitutes a mover, and a torsion spring is provided between the stator and the mover.
As shown in fig. 25, the rotation clamping mechanism includes a sliding groove 601, a sliding block 602, a pre-tightening spring 603, and a pre-tightening force adjusting stud 604; the two sliding blocks 602 are sequentially arranged in the sliding groove 601 along the radial direction of the rotating body 200, and the two sliding blocks 602 are connected through a pre-tightening spring 603; the two sliding blocks are clamped in the gap between the pretightening force adjusting stud 604 and the rotator 200, and the pretightening spring 603 stretches or shortens in the radial direction of the rotator 200; the pre-tightening force adjusting stud 604 can change the size of a gap between the rotating body 200 by rotating; the contact surface of the sliding block 602 contacted with the rotator 200 is an arc surface;
as shown in fig. 26 or 27, alternatively, the rotation clamp mechanism includes a mounting groove 605, an action magnet, an acted upon member; the acting magnet is provided in the mounting groove 605, and the acted member is provided between the side wall of the rotor 200 and the wall of the rotor accommodating hole 101; the acting magnet is an electromagnet 608 or a permanent magnet 607, wherein the permanent magnet 607 constitutes a slider that can slide in the mounting groove 605 in the radial direction of the rotor 200; the acted-on component is a magnetorheological component 606, wherein the magnetorheological component 606 comprises a capsule and a magnetorheological fluid filling the capsule; or the acted part is a C-shaped clamp, wherein the middle part of the C-shaped clamp is fixedly connected with the hole wall of the rotor accommodating hole 101, and the two ends of the C-shaped clamp are free ends.
The preload adjustment screw 604 adjusts the initial pressure of the slider against the rotor, and when the rotor is not rotating, the slider applies a static friction force against the rotor, which is overcome by the external force required to rotate the rotor. When the external force is removed, the rotator can be stopped due to the friction force of the sliding block. When the friction force provided by the sliding block on the rotating body is large enough, the rotating body can be stopped immediately when the external force is removed, so that the rotating body can stay at any angle.
The magnitude of the magnetic force received by the acting member can be changed by changing the magnitude of the current of the electromagnet 608 or changing the position of the permanent magnet 607. The magnetorheological fluid is switched between a liquid state and a solid state, so that the friction force on the rotating body is changed, the opening degree of the C-shaped clamp is changed, and the friction force on the rotating body is changed.
Working principle:
taking the first circumferential direction as an example, the first moving contact 104 moves to the shallow or deep end of the first channel slot 102 under the driving of the driving mechanism 300 or the elastic member 400, thereby locking or releasing the rotator 200, and thus preventing or allowing the rotator 200 to rotate in the first circumferential direction.
Likewise, the second circumferential direction may also effect locking or release of rotation of the rotor 200 in the second circumferential direction.
The first circumferential direction and the second circumferential direction are respectively and independently controlled, and unidirectional locking or unidirectional release along only one circumferential direction can be realized.
In a preferred embodiment, the first moving contact 104 is fastened to the first magnet block 301 to form a first assembly, so that the first assembly can only translate but cannot rotate;
the second moving contact 105 is fixedly connected with the second magnet stop 302 to form a second combination, so that the second combination can only translate but not rotate;
the driving mechanism 300 is an electromagnetic driving mechanism, such as an electromagnetic coil, wherein the electromagnetic driving mechanism applies an alternating magnetic field, so that the driven first moving contact body 104 and/or the second moving contact body 105 reciprocate, and further, the switching of repeated release and locking of the rotating body 200 is realized.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the invention. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.
Claims (7)
1. The direct-drive air door mechanism is characterized by comprising a valve channel (501), a valve plate (502), a valve rotating shaft (503), a first magnet piece (504), a second magnet piece (505) and a rotation clamping mechanism;
the valve plate (502) is arranged on the valve rotating shaft (503), and the valve plate (502) can close or open the valve channel (501) along with the rotation of the valve rotating shaft (503);
the first magnet piece (504) extends from the valve rotating shaft (503) and forms an included angle with the valve plate (502);
the second magnet piece (505) is arranged on the valve rotating shaft (503) and/or the valve plate (502);
the rotary clamping mechanism is connected with a valve rotating shaft (503);
the first magnet piece (504) is a ferromagnetic body, and the second magnet piece (505) is a permanent magnet; alternatively, the first magnet member (504) is a permanent magnet, and the second magnet member (505) is a ferromagnetic body; alternatively, the first magnet member (504) is a permanent magnet, and the second magnet member (505) is a permanent magnet;
the first magnet piece (504) is a rod piece, and the first magnet piece (504) is fixedly connected with the valve rotating shaft (503) and forms an included angle with the valve rotating shaft (503);
the electromagnetic coil in the valve channel (501) can attract or repel the first magnet piece (504) and the second magnet piece (505), so that the valve rotating shaft (503) is driven by the first magnet piece (504) to rotate;
the rotation clamping mechanism comprises a rotation controllable stopper (100) and a rotator (200);
the rotation controllable stopper (100) has a rotation body accommodating hole (101);
the rotor (200) is inserted into the rotor accommodating hole (101);
in the circumferential rotation direction of the rotor (200), the rotation-controllable stopper (100) can lock and release the rotor (200);
one end of the rotator (200) is fixedly connected with one end of the valve rotating shaft (503);
the wall of the rotor accommodating hole (101) is provided with a first concave channel groove (102) and/or a second concave channel groove (103);
a first moving contact body (104) is arranged in the first channel groove (102);
a second moving contact body (105) is arranged in the second channel groove (103);
the first channel groove (102) is formed from deep to shallow along the first circumferential direction to form a deep end and a shallow end;
the second channel groove (103) is changed from deep to shallow along the second circumferential direction to form a deep end and a shallow end; wherein the second circumferential direction and the first circumferential direction are opposite directions to each other;
the first moving contact body (104) can move to the shallow end and the deep end of the first channel groove (102) so as to lock and release respectively;
the second moving contact body (105) can move to the shallow end and the deep end of the second channel groove (103) so as to lock and release respectively;
shallow ends of the first channel grooves (102) and the second channel grooves (103) are connected with each other, or the first channel grooves (102) and the second channel grooves (103) are arranged at intervals, or deep ends of the first channel grooves (102) and the second channel grooves (103) are connected with each other;
the first channel groove (102) is formed from deep to shallow along the first axial direction to form a deep end and a shallow end;
the second channel groove (103) is formed from deep to shallow along the second axial direction to form a deep end and a shallow end; wherein the second axial direction and the first axial direction are opposite directions;
the deep end and the shallow end of the first channel groove (102) formed along the first axial direction are respectively positioned at the same position of the deep end and the shallow end of the first channel groove (102) formed along the first circumferential direction;
the deep end and the shallow end of the second channel groove (103) formed along the second axial direction are respectively positioned at the same position of the deep end and the shallow end of the second channel groove (103) formed along the second circumferential direction;
the shallow and deep ends are both relative to the recessed depth of the bore wall of the rotor receiving bore (101); the radial distance between the bottom surface of the groove at the shallow end and the outer side surface of the rotator (200) is smaller than the radial distance between the bottom surface of the groove at the deep end and the outer side surface of the rotator (200);
when the first moving contact body (104) moves to the shallow end of the first channel groove (102), the first moving contact body (104) is clamped by the groove bottom surface at the shallow end and the outer side surface of the rotating body (200) together, so that the rotating body (200) is prevented from rotating along the first circumferential direction; when the first moving contact body (104) moves to the deep end of the first channel groove (102), the first moving contact body (104) is not clamped by the bottom surface of the groove at the deep end and the outer side surface of the rotating body (200), and the rotating body (200) is allowed to rotate along the first circumferential direction;
when the second moving contact body (105) moves to the shallow end of the second channel groove (103), the second moving contact body (105) is clamped by the groove bottom surface at the shallow end and the outer side surface of the rotating body (200) together, so that the rotating body (200) is prevented from rotating along the first circumferential direction; when the second moving contact body (105) moves to the deep end of the second channel groove (103), the second moving contact body (105) is not clamped by the bottom surface of the groove at the deep end and the outer side surface of the rotating body (200), and the rotating body (200) is allowed to rotate along the second circumferential direction;
in the first channel groove (102) and the second channel groove (103) which are connected with each other, the first moving contact body (104) and the second moving contact body (105) are connected through an elastic piece (400), or the first moving contact body (104) and the second moving contact body (105) are connected with a deep end or a shallow end through the elastic piece (400).
2. The direct drive damper mechanism according to claim 1, wherein the rotational clamping mechanism includes an angle sensor;
the angle sensor comprises a conductor (506); the conductor (506) is fixedly connected with the controllable stopper (100);
the conductor (506) is connected with a basic electrode V0, a first electrode V1 and a second electrode V2;
the basic electrode V0 and the first electrode V1 are in fixed positions on the conductor (506);
one end of the second electrode V2 is fixedly connected with the rotator (200), and the other end of the second electrode V2 is in sliding contact with the conductor (506).
3. The direct-drive damper mechanism according to claim 2, wherein the rotation of the valve rotating shaft (503) drives the second electrode V2 to rotate synchronously through the rotating body (200), so as to change the contact position of the other end of the second electrode V2 on the conductor (506), and further change the resistance between the second electrode V2 and the basic electrode V0.
4. The direct drive damper mechanism according to claim 1, wherein the rotary clamping mechanism includes a drive mechanism (300);
driven by the driving mechanism (300):
the first moving contact body (104) can move to the shallow end and the deep end of the first channel groove (102) to lock and release in the first circumferential direction respectively;
the second moving contact body (105) can move to the shallow end and the deep end of the second channel groove (103) to lock and release in the second circumferential direction respectively;
the controllable stopper (100) forms a stator, the rotator (200) forms a rotor, and a torsion spring is arranged between the stator and the rotor;
the rotation clamping mechanism comprises a sliding groove (601), a sliding block (602), a pre-tightening spring (603) and a pre-tightening force adjusting stud (604); the two sliding blocks (602) are sequentially arranged in the sliding groove (601) along the radial direction of the rotating body (200), and the two sliding blocks (602) are connected through a pre-tightening spring (603); the two sliding blocks are clamped in the gap between the pre-tightening force adjusting stud (604) and the rotating body (200), and the pre-tightening spring (603) stretches or shortens in the radial direction of the rotating body (200); the pre-tightening force adjusting stud (604) can change the size of a gap between the pre-tightening force adjusting stud and the rotating body (200) through rotation; the contact surface of the sliding block (602) contacted with the rotating body (200) is an arc surface;
alternatively, the rotation clamping mechanism comprises a mounting groove (605), an acting magnet and an acted part; an acting magnet is arranged in the mounting groove (605), and an acted component is arranged between the side wall of the rotating body (200) and the hole wall of the rotating body accommodating hole (101); the acting magnet is an electromagnet (608) or a permanent magnet (607), wherein the permanent magnet (607) forms a sliding block capable of sliding in the mounting groove (605) along the radial direction of the rotating body (200); the acted-on component is a magnetorheological component (606), wherein the magnetorheological component (606) comprises a capsule and a magnetorheological fluid filling the capsule; or the acted part is a C-shaped clamp, wherein the middle part of the C-shaped clamp is fixedly connected with the hole wall of the rotor accommodating hole (101), and the two ends of the C-shaped clamp are free ends.
5. The direct drive damper mechanism according to claim 1, wherein the rotational clamping mechanism comprises a first magnet stop (301) and/or a second magnet stop (302);
the first magnet stop (301) and the first moving contact body (104) are located in the first channel groove (102) together;
the second magnet block (302) and the second moving contact body (105) are located in the second channel groove (103);
after the first magnet stop block (301) and the second magnet stop block (302) are driven by the driving mechanism (300) in an electromagnetic mode, the first magnet stop block (301) can push the first moving contact body (104) to the shallow end or the deep end of the first channel groove (102), and the second magnet stop block (302) can push the second moving contact body (105) to the shallow end or the deep end of the second channel groove (103).
6. The direct drive damper mechanism according to claim 1, wherein an elastic member (400) is connected between the first magnet block (301) and the second magnet block (302).
7. The direct drive damper mechanism according to claim 1, wherein the first moving contact (104) is fixedly connected with the first magnet block (301) to form a first combination, such that the first combination can only translate but cannot rotate;
the second moving contact body (105) is fixedly connected with the second magnet stop block (302) to form a second combined body, so that the second combined body can only translate but cannot rotate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711059806.8A CN109751421B (en) | 2017-11-01 | 2017-11-01 | Direct-drive air door mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711059806.8A CN109751421B (en) | 2017-11-01 | 2017-11-01 | Direct-drive air door mechanism |
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| Publication Number | Publication Date |
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| CN109751421A CN109751421A (en) | 2019-05-14 |
| CN109751421B true CN109751421B (en) | 2024-03-15 |
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| CN201711059806.8A Active CN109751421B (en) | 2017-11-01 | 2017-11-01 | Direct-drive air door mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112303258B (en) * | 2020-10-31 | 2022-11-11 | 张家港市金秋环保科技有限公司 | Ventilation valve and use method thereof |
| CN112757348B (en) * | 2021-01-21 | 2022-11-25 | 北京字节跳动网络技术有限公司 | Power-off self-locking device and equipment |
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| DE102013206311A1 (en) * | 2012-05-14 | 2013-11-14 | Denso Corporation | Electromagnetic actuator for use in valve stroke adjusting device of combustion engine, has control pins moving towards grooves, and coil alternately energized in two directions such that direction of flux is changed in directions |
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| CN109751421A (en) | 2019-05-14 |
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