TWI594549B - Magnetic transmission - Google Patents

Description

Magnetic transmission

The invention relates to a transmission, in particular to a non-contact magnetic gear combined with a shifting unit of a variable power path, thereby achieving a frictionless transmission and a variable speed magnetic transmission.

Transmissions are widely used in the fields of turbines and mobile vehicles. Due to the same power output conditions, the torque and speed in various transmission systems are negatively correlated. Therefore, the mechanism of the transmission is to adapt to different environmental conditions or Output demand, using the speed of the transmission to adjust its output state.

In the conventional transmission transmission system, the gear is a kind of component with good adaming and high flexibility. Therefore, in the past, the transmission transmission system or other devices involving different transmission state adjustments often use gears in large quantities, and the number of teeth Differences can simply change the output.

However, the cost of high gear mobility is that a large amount of kinetic energy is converted into friction and waste heat during the transmission process, in addition to the reduced efficiency of the existing transmission device, in addition to parts loss, thermal damage and intensive maintenance. And other issues.

In addition, in the conventional transmission, a single set of gears is only applied to one The output of the speed, therefore, the use of a transmission similar to a planetary gear train often faces the problem of too many components and a large space required for the design, especially when the number of sections of the transmission is increased, the above problems are more serious. This also increases the difficulty of designing and processing the transmission.

In view of the various drawbacks of the conventional transmission device, the present invention provides a magnetic transmission that is provided with an inner ring, an outer ring magnetic ring, and a magnetic modulation unit therebetween, with reference to the arrangement relationship of the planetary gear trains, and then through the transmission element. Whether to select the input end and the output end of the magnetic transmission, the power transmission flow direction is changed by the selection of the above transmission elements, thereby achieving the purpose of shifting.

According to an embodiment of the present invention, a magnetic transmission includes a hub, an inner ring magnetic ring, an outer ring magnetic ring, a magnetic adjustment unit, a first transmission module, a second transmission module, and a shifting unit. .

The hub is located outside of the magnetic transmission to accommodate protection of other components and at the same time serves as the final output of the magnetic transmission. The inner ring magnetic ring is positioned in the hub and moves in the same direction as the hub. The outer ring magnetic ring is disposed between the inner ring magnetic ring and the hub, and the outer ring magnetic ring includes a plurality of outer magnetic pole pairs. The magnetic adjusting unit ring is disposed between the inner ring magnetic ring and the outer ring magnetic ring, and the magnetic adjusting unit is rotatable relative to the inner ring magnetic ring, thereby magnetically pulling the outer magnetic pole pair, the magnetic adjusting unit comprises a plurality of magnetic conductive blocks, and the magnetic conductive The number of blocks is different from the number of magnetic pole pairs described above. The first transmission module is connected to an external power source, and the first transmission module comprises a first input unit and a first output unit, and the first input unit is connected and driven The outer ring magnetic ring rotates, and the first input unit includes a first pawl; the first output unit includes a first nip for the first pawl linkage, and the first output unit is coupled to the hub to drive the hub to rotate. The second transmission module includes a second input unit and a second output unit. The second input unit is coupled to and drives the rotation of the magnetic adjustment unit, and the second input unit includes a second engagement portion. The second output unit is coupled to the magnetic adjustment unit. Rotating in conjunction, and the second output unit is coupled to the hub to drive the hub to rotate. The shifting unit is coupled to the external power source, and the shifting unit is located between the first input unit and the second input unit, and the shifting unit moves between a first position and a second position. The shifting unit includes a second pawl and an outer jaw. The second pawl is corresponding to the second engaging portion. When the shifting unit is in the first position, the second pawl interlocks the second engaging portion to drive the second input. The unit has a position corresponding to the first pawl and is in contact with the first pawl. When the shifting unit is in the second position, the outer jaw pushes against the first pawl to control it to disengage from the first engaging portion.

In general, during the shifting process of the magnetic transmission, the two sets of transmission modules are operated separately, and the output mode of the final hub is determined by the position of the shifting unit. Depending on the position of the shifting unit, the two transmissions will be determined. Whether the transmission relationship of the module is valid.

It can be seen from the above embodiment that the first output unit and the second output unit are directly connected to the hub, and the engagement relationship of the gear system is not used. The first input unit and the second input unit are not in contact with each other, and the corresponding outer ring magnetic ring and the magnetic regulating unit of the two are also directly connected and driven without a gear. This type of transmission can effectively avoid the generation of friction and solve the problem of component loss and power conversion efficiency reduction.

Since the magnetic transmission has only the inner ring magnetic ring, the magnetic modulating unit and the outer ring magnetic ring, but the sun gear in the planetary gear train is not used, the center of the inner ring magnetic ring is hollow and can accommodate other components.

Therefore, in an embodiment, the aforementioned second input unit may be disposed inside the inner ring magnetic ring. In addition, the foregoing first input unit, second input unit, and shifting unit may be coaxially disposed, and in this premise, the first input unit may be disposed inside the second input unit, and the shifting unit may be disposed at the first input. The inside of the unit. In this way, in addition to the transmission component is smaller than the conventional transmission, the saved space can accommodate the shifting unit, the first transmission module and the second transmission module, while reducing the axial height and radial dimension of the magnetic transmission. The size of the magnetic transmission is greatly reduced.

In an embodiment, the second input unit may include a receiving slot, the second engaging portion may be disposed in the receiving slot, and the shifting unit is disposed in the receiving slot, by the setting of the receiving slot, regardless of the shifting unit In the first position or the second position, the movement is mainly in the accommodating groove, so even if the second input unit is coaxially disposed with the first input unit, the thickness to be added is still extremely small, thereby making the magnetic transmission The axial height is again compressed. In addition, the shifting unit can be in a third position, at which time the second pawl is disengaged from the second occlusal portion and the outer haptics continues to push against the first pawl.

It is worth mentioning that when the shifting unit is in the first position, the first pawl can still interlock the first occluding portion, and in this state, the occlusal state of the first transmission module and the second transmission module are effective. Although the first output unit and the second output unit are both connected to the hub, the hub will be driven by two groups. The faster of the modules (determined by the number of pairs of magnetic and external magnetic poles) is the output.

Regarding the inner ring magnetic ring, the magnetic flux regulating unit and the outer ring magnetic ring, the inner ring magnetic ring may comprise a plurality of inner magnetic pole pairs, and the number of the magnetic conductive blocks may be equal to the sum of the inner magnetic pole pair and the outer magnetic pole pair, where the magnetic pole The relationship between the number of magnetic blocks and the number of magnetic blocks is intended to change the magnetic resistance generated in the rotation of the magnetic transmission, which is related to the air gap and harmonic principle of the magnetic gear, and belongs to the existing analysis technology, so it will not be described in depth here. Since the inner ring magnetic ring and the outer ring magnetic ring system are respectively composed of a plurality of sets of mutually different magnetic pole pairs, the adjacent two magnetic conductive blocks are also arranged to form an interval, and in each interval, the magnetic regulating unit A plurality of reinforcing blocks may be provided, and the reinforcing blocks may be made of a non-magnetic material, and the reinforcing blocks are not involved in the magnetic force, and the main function is to maintain the structural integrity of the magnetic regulating unit.

In an embodiment, the external power source may be installed on a bicycle, an electric bicycle, a locomotive, a car or a wheelchair, and according to the operating principle of the magnetic transmission, as long as the power provided by the external power source is The form of rotation can be applied to the operation of the magnetic transmission.

According to an embodiment of the present invention, a magnetic transmission includes an inner ring magnetic ring, an outer ring magnetic ring, a modulating unit, a first transmission module, a second transmission module, and a shifting unit.

The inner ring magnetic ring is positioned in the magnetic transmission. The outer ring magnetic ring is disposed outside the inner ring magnetic ring, and the outer ring magnetic ring includes a plurality of outer magnetic pole pairs. The magnetic modulating unit ring is disposed between the inner ring magnetic ring and the outer ring magnetic ring, the magnetic modulating unit rotates relative to the inner ring magnetic ring and magnetically pulls the outer magnetic pole pair, and the magnetic modulating unit comprises a plurality of magnetic conductive blocks, and The number of magnetic blocks is different from the number of outer magnetic pole pairs described above. The first transmission module is connected to an external power source, the first transmission module is connected to the outer ring magnetic ring, the external power source is used for the first transmission module to drive the outer ring magnetic ring to rotate, and the first transmission module comprises a first spine The claw and one of the first output units that are interlocked by it. The second transmission module is connected to the modulating unit, and the second transmission module further comprises a second output unit that is rotated by the modulating unit. The shifting unit is located between the first transmission module and the second transmission module, and the shifting unit is connected to the external power source, and the shifting unit is moved between a first position and a second position. The shifting unit includes a second pawl and an outer jaw. The second pawl position corresponds to the second transmission module. When the shifting unit is in the first position, the second pawl interlocks the second transmission module to drive the adjustment. a magnetic unit; the outer jaw portion corresponds to the first pawl of the first transmission module, and when the shifting unit is in the second position, the outer jaw pushes against the first pawl to control it to disengage from the first output unit.

This embodiment is substantially the same as the principle of the first embodiment described above, and will not be described in detail herein. The difference between this embodiment and the first embodiment is that the first output unit and the second output unit may be open to the outside. In other words, in the embodiment, the two output units may not necessarily be connected to the hub of the first embodiment. . It can be seen from the above that the two sets of transmission modules of the magnetic transmission are independent of each other and do not conflict with each other, and the operating states of the two are determined according to their interlocking relationship with the shifting unit. It can be seen from this that the shifting unit can operate only one of the transmission modules, and can also make the first pawl and the second pawl effective at the same time. In this state, the outer magnetic ring of the magnetic transmission (corresponding to the first transmission mode) Group) and the magnetic unit (corresponding to the second transmission module) There is a magnetic force relationship, but since there is no physical connection between the two, it does not affect the output of the first output unit and the second output unit at different speeds.

According to an optional embodiment of the foregoing embodiment, the second transmission module may be disposed on the inner side of the inner ring magnetic ring, and the first transmission module, the second transmission module, and the shifting unit may be coaxially disposed, wherein A transmission module can be disposed on the inner side of the second transmission module, and the shifting unit can be disposed on the inner side of the first transmission module. The second transmission module may include a receiving groove, the second engaging portion may be disposed in the receiving groove, the receiving groove may be provided with a second engaging portion, and the second pawl is coupled to the second transmitting mold through the second engaging portion group. In addition, the shifting unit can be disposed in the accommodating groove. When the shifting unit is in a third position, the second pawl can be disengaged from the second occluding portion, and at this time, the outer shank can push against the first pawl. When the shifting unit is in the first position, the first pawl can interlock the first output unit. The inner ring magnetic ring may include a plurality of inner magnetic pole pairs, and the number of the magnetic conductive blocks may be equal to the sum of the inner magnetic pole pair and the outer magnetic pole pair, and the adjacent two magnetic conductive blocks of the magnetic adjusting unit may be separated and formed. At intervals, in each interval, the modulating unit may be provided with a plurality of reinforcing blocks, and the reinforcing blocks may be made of a non-magnetic material. In an embodiment, the aforementioned external power source may be mounted on a bicycle, an electric bicycle, a locomotive, a car, or a wheelchair.

100‧‧‧Magnetic gearbox

200‧‧·wheels

300‧‧‧ Inner ring magnetic ring

310‧‧‧ inner magnetic pole pair

400‧‧‧Outer ring magnetic ring

410‧‧‧External magnetic pole pair

420‧‧‧Transmission rim

500‧‧‧Magnetic unit

510‧‧‧Magnetic block

520‧‧‧Strengthen block

600‧‧‧First Transmission Module

610‧‧‧first input unit

611‧‧‧ drive parts

611A‧‧‧biting slot

611B‧‧‧ openings

612‧‧‧First pawl

612A‧‧‧Reset

612B‧‧‧ Guide surface

613‧‧‧First drive plate

613A‧‧‧Transmission Department

620‧‧‧First output unit

621‧‧‧First occlusion

700‧‧‧Second drive module

710‧‧‧Second input unit

711‧‧‧ accommodating slots

712‧‧‧Second bite

720‧‧‧second output unit

721‧‧‧Second drive plate

722‧‧‧ Output pawl

800‧‧‧Transmission unit

810‧‧‧Advance shaft

820‧‧‧ activities

821‧‧ ‧ chute

822‧‧‧Locating pin

830‧‧‧Transmission sleeve

831‧‧‧second pawl

832‧‧‧ Foreign Ministry

832A‧‧‧ guiding surface

840‧‧‧Flexible parts

M‧‧‧External power source

R1‧‧‧First Power Path

R2‧‧‧ second power path

R3‧‧‧ third power path

1 is an exploded view of a magnetic transmission according to an embodiment of the present invention; 2 is a structural view of a stator and a rotor of the magnetic transmission of FIG. 1; FIG. 3A is an exploded view of the first transmission module of the magnetic transmission of FIG. 1; FIG. 3B is a first diagram FIG. 4A is an exploded view of the second transmission module of the magnetic transmission of FIG. 1; FIG. 4B is a second diagram of the magnetic transmission of FIG. FIG. 5A is an exploded view of the shifting unit of the magnetic transmission of FIG. 1; FIG. 5B is a schematic diagram showing the transmission of the shifting unit of the magnetic transmission of FIG. 1; FIG. 6 is a schematic view showing a first power path of the magnetic transmission of FIG. 1 and FIG. 6B is a second power path diagram of the magnetic transmission of FIG. And FIG. 6C is a schematic diagram showing a third power path of the magnetic transmission of FIG. 1.

Fig. 1 is an exploded view showing a magnetic transmission 100 according to an embodiment of the present invention. Referring to FIG. 1 , the magnetic transmission 100 is connected to an external power source M, and the magnetic transmission 100 includes a hub 200 , an inner ring magnetic ring 300 , an outer ring magnetic ring 400 , a magnetic regulating unit 500 , and a first transmission . The module 600, a second transmission module 700 and a shifting unit 800.

Fig. 2 is a view showing the structure of a stator and a rotor of the magnetic transmission 100 of Fig. 1. Referring to FIG. 2, the inner ring magnetic ring 300, the magnetic flux regulating unit 500, and the outer ring magnetic ring 400 are coaxially sleeved from the inside and the outside and housed in the hub 200 of FIG. 1, and the inner ring magnetic ring 300 includes plural numbers. The inner magnetic pole pair 310, the outer ring magnetic ring 400 includes a plurality of outer magnetic pole pairs 410, and the magnetic modulating unit 500 includes a plurality of magnetic conductive blocks 510. The inner ring magnetic ring 300 is fixed inside the hub 200 and is fixed as a stator in the present embodiment. The magnetic modulating unit 500 and the outer ring magnetic ring 400 are sequentially disposed outside the inner ring magnetic ring 300 and can be used by other components. The drive (detailed later) can be used as a rotor.

As can be seen from Fig. 2, there are 6 pairs of inner magnetic pole pairs 310, 16 pairs of outer magnetic pole pairs 410, and 22 pairs of magnetic conductive blocks 510. In principle, the number of magnetic conductive blocks 510 is just the inner magnetic pole pair 310 and the outer magnetic pole pair. At the sum of 410, the magnetoresistance of the magnetic ring and the magnetic modulating unit 500 is relatively small, but this rule is only an optional optimized design and is not required to implement the present invention. For the present embodiment, the inner ring magnetic ring 300 is used for the normal operation of the magnetic modulating unit 500 and the outer ring magnetic ring 400. In addition, it is only necessary to ensure that the outer magnetic pole pair 410 and the magnetic conductive block 510 are different in number. Just fine.

Here, the principle of the magnetic shifting is the same as the speed ratio of the gears, and each set of outer magnetic pole pairs 410 and the magnetic conductive blocks 510 will attract each other, so the two can be visualized. For the occlusal teeth of the gear, the outer magnetic pole pair 410 and the magnetic conductive block 510 are different in number, which means that when the two magnetic forces are mutually driven, different angular velocities are generated. In the present embodiment, the function of the magnetic shift is achieved by changing the elements corresponding to the input end and the output end, and further utilizing the angular velocity difference described above.

In addition, since the inner ring magnetic ring 300 and the outer ring magnetic ring 400 are self-contained, the magnetic conductive block 510 only needs to react to the magnetic force, for example, iron, and does not need to be magnetic. Therefore, the adjacent two magnetic conductive blocks 510 have a spacing (not labeled), and the magnetic adjusting unit 500 is provided with a reinforcing block 520 in each interval, and the reinforcing blocks 520 can use non-magnetic materials such as aluminum.

3A is an exploded view of the first transmission module 600 of the magnetic transmission 100 of FIG. 1. FIG. 3B is a schematic diagram showing the operation of the first transmission module 600 of the magnetic transmission 100 of FIG. 1 . Referring to FIG. 3A and FIG. 3B together, the first transmission module 600 includes a first input unit 610 and a first output unit 620. For clarity, the following uses the exploded view of FIG. 3A to introduce the two. The construction is followed by the combination diagram of FIG. 3B to illustrate the actuation relationship of each component.

The first input unit 610 includes a driving member 611, two first pawls 612, and a first driving plate 613. The top of the driving member 611 is recessed with a bite groove 611A for engaging with the external power source M, thereby being driven by the external power source M. The external power source M can be mounted on a turbine, a bicycle, an electric bicycle, and a A power unit on a locomotive, a car or a wheelchair, but not limited to this.

Taking the drawing of FIG. 3A as an example, the engaging groove 611A of the present embodiment has a tooth shape, and the engaging groove 611A in this example is the axle of the bicycle. (not shown) the bite is driven to rotate. The side of the driving member 611 is provided with two openings 611B for correspondingly receiving the first pawl 612. The two first pawls 612 are respectively rotatably locked in the opening 611B by the pins. The first pawl 612 includes a reset member 612A. As in the example of FIG. 3A, the reset member 612A may be a torsion spring, the two ends of which are respectively fixed to the driving member 611 and the first pawl 612, when the first pawl 612 is When pressed and rotated, one end of the reset member 612A will be twisted to generate an extrapolated restoring force, and therefore, the first pawl 612 is pushed outward by the reset member 612A in a preset state. Further, the bottom edge of the portion facing the inner side of the first pawl 612 has a guiding surface 612B, so that when the guiding surface 612B receives the thrust from the bottom edge, the first pawl 612 is guided to rotate and contract. The first transmission plate 613 is coaxially sleeved with the driving member 611 and can be fixed to each other by screws, and the first transmission disk 613 is further provided with a plurality of transmission portions 613A in the radial direction.

The first output unit 620 is coaxially sleeved with the first input unit 610, and its sleeve position is just at the interval between the driving member 611 and the first transmission disk 613. The first output unit 620 is provided with a plurality of first occluding portions 621 at a position corresponding to the opening 611B. When the first pawl 612 is engaged with the first occluding portion 621, the first input unit 610 and the first output are established. The transmission relationship of unit 620.

As shown in FIG. 3B, the outer ring magnetic ring 400 has a transmission rim 420 on the outer side thereof, the transmission portion 613A is fixedly connected to the outer ring magnetic ring 400 through the transmission rim 420, and the outer side of the first output unit 620 is connected to the hub 200. fixed. When the external power source M acts, the first transmission module 600 will generate two sets of power transmission paths. One of the groups is driven by the driving member 611, the first transmission The order of the disk 613, the transmission rim 420, and the outer ring magnetic ring 400 is transmitted; the other group is transmitted in the order of the driving member 611, the first pawl 612, the first occluding portion 621, and the hub 200, and the two groups of paths The components all rotate at the same angular velocity.

4A is an exploded view of the second transmission module 700 of the magnetic transmission 100 of FIG. 1. Referring to FIG. 4A, the second transmission module 700 includes a second input unit 710 and a second output unit 720. The second input unit 710 includes a receiving slot 711, and the inner ring of the receiving slot 711 is provided with a plurality of second slots. The occlusion portion 712 is for the other components to drive the second input unit 710. The second output unit 720 includes a second drive plate 721 and an output pawl 722, which is different from the active drive of the first drive plate 613. The second drive plate 721 is a driven passive component; the output pawl 722 is mounted on the second. The drive plate 721 and the second output unit 720 are engaged, so that when the second drive plate 721 is rotated to rotate, the entire second output unit 720 will rotate together.

FIG. 4B is a schematic diagram showing the operation of the second transmission module 700 of the magnetic transmission 100 of FIG. 1 . As shown in FIG. 4B , the shape of the second input unit 710 is set to be corresponding to the first transmission disk 613 of the first input unit 610 , and is disposed coaxially with the first transmission module 600 . As shown in FIG. 4B, since the sun gear in the planetary gear train is not used in the present embodiment, the inner core of the magnetic transmission 100 is hollow, and the second input unit 710 can be disposed inside the inner ring magnetic ring 300, and the second input unit The first drive plate 613 and the drive member 611 are further disposed inside the 710, thereby effectively utilizing the internal space of the magnetic transmission 100.

In addition, the outer edge of the second input unit 710 is fixedly connected to one side of the magnetic flux adjusting unit 500, and the second driving disk 721 of the second output unit 720 is connected to the other side of the magnetic regulating unit 500, and the second output unit is further connected. The outer side of the 720 is also fixedly coupled to the hub 200. Therefore, when the second input unit 710 is driven, the power will be based on the second occluding portion 712, the modulating unit 500, the second driving plate 721, the output pawl 722, and the second output unit. 720, the order of the hub 200 is transmitted.

Fig. 5A is an exploded view showing the shifting unit 800 of the magnetic transmission 100 of Fig. 1. Continuing to refer to FIG. 5A, the shifting unit 800 includes a propulsion shaft 810, a movable member 820, a shift sleeve 830, and an elastic member 840. The propulsion shaft 810 is disposed on one side of the shifting unit 800 for pushing against the movable member 820; otherwise, the elastic member 840 is disposed on the opposite side of the propulsion shaft 810 for stopping the thrust of the propulsion shaft 810.

The movable member 820 includes a sliding slot 821 and a positioning pin 822, and the sliding slot 821 has a shape corresponding to the positioning pin 822. As shown in FIG. 5A, the positioning pin 822 is used to match the external power source M and the shifting unit 800. The occlusion relationship between. In this embodiment, the external power source M can be bored to receive the positioning pin 822, and the movable member 820 is axially inserted into the external power source M, and the sliding slot 821 abuts the positioning pin 822 when the external power When the source M is started, the movable member 820 can be rotated by the positioning pin 822, or even the entire shifting unit 800. As can be seen from FIG. 5A, the chute 821 has a length for the positioning pin 822 to slip, and the setting of the length corresponds to the advancement of the propulsion shaft 810, so that the propulsion shaft 810 is advanced. Or being rebounded by the elastic member 840, the positioning pin 822 is still located in the sliding slot 821, and the movable member 820 is kept in a normally driven state.

FIG. 5B is a schematic diagram showing the transmission of the shifting unit 800 of the magnetic transmission 100 of FIG. 1. As illustrated in FIG. 5B, the shift sleeve 830 includes a second pawl 831 and an outer jaw 832, and the second pawl 831 is disposed at the front end of the shift sleeve 830. In the foregoing paragraph, the second input unit 710 is It is driven by the second engaging portion 712, and the second pawl 831 here is the element corresponding to the second engaging portion 712.

In detail, the shift sleeve 830 is movably disposed in the receiving groove 711, and the elastic member 840 is located at the bottom of the receiving groove 711. The advancing shaft 810 and the elastic member 840 are used to control the position of the shift sleeve 830 with respect to the receiving groove 711. Since the shifting unit 800 is disposed inside the first input unit 610 , the shift sleeve 830 is enclosed between the first input unit 610 and the second input unit 710 .

The shift sleeve 830 can be located at three positions in the present embodiment, and FIG. 5B shows the shift sleeve 830 at the outermost side (the outer jaw 832 is against the drive member 611), when the shift sleeve 830 is here. In the position, the second pawl 831 touches the second engaging portion 712 to make the engagement effective, and when the shift sleeve 830 is pushed to the bottom of the receiving groove 711, the second pawl 831 will be disengaged from the second engaging portion 712 and The shape of the inner wall of the accommodating groove 711 is received, and the occlusion is automatically invalidated.

In general, in the state of FIG. 5B, the shift sleeve 830 is located at the outermost side, the outer dam portion 832 is not depressed, the first pawl 612 is only externally activated at this time, and the second pawl 831 is touched. The upper half of the second occlusal portion 712, biting It is also effective. When the shift sleeve 830 is at the intermediate position, the first pawl 612 is pressed by the outer jaw 832 to be ineffective, and the second pawl 831 is in contact with the lower half of the second engaging portion 712, and the engagement is still effective. Again, when the shift sleeve 830 is located at the bottom of the receiving groove 711, the engagement of the first pawl 612 and the second pawl 831 is invalid.

Fig. 5C is an enlarged view showing a guide surface of the magnetic transmission 100 of Fig. 1. Referring to FIG. 5C, when the shift sleeve 830 moves in the accommodating groove 711, the outer dam portion 832 also moves relative to the first pawl 612. In the foregoing paragraphs, the guiding surface 612B of the first pawl 612 is for the shift sleeve 830 to be pushed up from the bottom; otherwise, the guiding surface 832A of the outer jaw 832 is for pushing the shift sleeve 830 from the top to the bottom. Arrived. Thus, when the advancing shaft 810 and the elastic member 840 are pushed against the shift sleeve 830 in both directions, the shift sleeve 830 can be smoothly passed through the first pawl 612.

In general, the shifting sleeve 830 has two functions, one is to control whether the first pawl 612 is to engage the first engaging portion 621, and the other is to control whether the second pawl 831 is to engage the second engaging portion 712. Depending on the position of the shift sleeve 830, the transmission behavior or sequence of the rear magnetic field unit 500 and the outer ring magnetic ring 400 will be changed, resulting in a different final output profile.

The manner in which the present embodiment uses the shift sleeve 830 to change the output configuration of the magnetic transmission 100 will be described in detail below. 6A is a schematic view showing the first power path R1 of the magnetic transmission 100 of FIG. 1. In FIG. 6A, the shift sleeve 830 of the shifting unit 800 is located at one of the first positions on the right side. As can be seen from the figure, the outer portion 832 of the shift sleeve 830 does not touch the first pawl 612, so the first pawl 612 keeps the preset state of the outer sheet, the first input unit The transmission of 610 and first output unit 620 is active. At the same time, the second pawl 831 at the front end of the shift sleeve 830 is engaged with the second engaging portion 712 to be engaged, so that the transmission of the second input unit 710 and the second output unit 720 thereof are also effective. First, the first pawl 612 engages the first engaging portion 621, and the power is output to the hub 200 via the first output unit 620 (the rightmost dotted line in the drawing). At the same time, the second pawl 831 drives the second input unit 710 to directly drive the magnetic modulating unit 500 to rotate, and then pulls the outer outer ring magnetic ring 400 by magnetic force, and reversely transmits the driving member through the first driving plate 613. The 611 is rotated and finally output to the hub 200 (intermediate point chain) through the first output unit 620. Since the number of magnetically permeable blocks 510 is greater than the outer magnetic pole pair 410, the angular velocity of the outer ring magnetic ring 400 will be amplified (22/16 times).

It should be noted that although the driving member 611 is directly driven by the external power source M to drive the first output unit 620, the magnetic adjusting unit 500 is also driven by the second input unit 710 to drive the second output unit 720 (the leftmost dotted line). The two power paths are all connected to the hub 200 and are not accelerated. However, since the rotational speed of the outer ring magnetic ring 400 is fast, the hub 200 of the magnetic transmission 100 will eventually output as an amplified speed.

6B is a schematic view showing the second power path R2 of the magnetic transmission 100 of FIG. 1. In FIG. 6B, the shift sleeve 830 of the shifting unit 800 is pushed in by the propulsion shaft 810 to be in a second position. In this state, the guiding surface 832A of the outer crotch portion 832 is triggered by the first pawl 612. The contraction causes the transmission of the first transmission module 600 to be invalidated. Therefore, when the shifting unit 800 is in the second position, the second power path R2 will be composed of the second pawl 831, the second occluding portion 712, the modulating unit 500, the second transmission plate 721, The path of the output pawl 722, the second output unit 720, and the hub 200 is transmitted. Of course, this power path does not involve the traction of the magnetic flux unit 500 and the outer ring magnetic ring 400, so the rotational speed of the hub 200 is equal to the external power source M, which can be regarded as a direct drive gear.

In the state of the second position, although the meshing function of the first pawl 612 is closed, the driving member 611 and the first driving disk 613 are not stopped by the outer ring magnetic ring 400, and the outer ring magnetic ring 400 is still magnetically driven. The magnetic modulating unit 500 (dotted line in the figure); as mentioned above, since the number of outer magnetic pole pairs 410 is smaller than that of the magnetic conductive block 510, such a driving shape attempts to decelerate to 16/22 times, but for the rotation at a double speed In the case of the magnetic unit 500, it is not affected by the deceleration of the outer ring magnetic ring 400, and is still output to the hub 200 at twice the rotational speed.

Similarly, in reverse, the second input unit 710 understands that the magnetic modulating unit 500 still pulls the outer ring magnetic ring 400 in the second position, that is, the rotational speed amplification effect of the first power path R1 still exists, but because of the first The pawl 612 and the first engaging portion 621 are in a disengaged state at this time, so that the rotational speed amplification effect is transmitted back to the driving member 611, and the power is not transmitted to the endmost hub 200.

6C is a schematic view showing the third power path R3 of the magnetic transmission 100 of FIG. 1. In Fig. 6C, the shift sleeve 830 is pushed by the pusher shaft 810 to the bottom of the receiving groove, and the shifting unit 800 is in the third position. Since the outer jaw portion 832 still pushes against the first pawl 612, and the second engaging portion 712 does not extend to the bottom of the receiving groove, the second pawl 831 is retracted with the inner wall of the receiving groove, so both sets of pawls are Invalid. At this time, the third power path R3 will follow the driving member 611, the transmission portion 613A of the first transmission plate 613, the outer ring magnetic ring 400, The path of the modulating unit 500, the second drive plate 721, the output pawl 722, the second output unit 720, and the hub 200 is transmitted.

In combination with the above description, the difference between the third position and the second position is that the second transmission module 700 is closed, and the direct drive mode is thus cancelled. As a result, the decelerating traction effect of the outer ring magnetic ring 400 on the magnetic modulating unit 500 is exhibited, so that the rotational speed is reduced by the modulating unit 500 to the endmost hub 200.

As can be seen from the description of FIGS. 6A to 6C, the outer ring magnetic ring 400 does not have any friction with the magnetic flux adjusting unit 500 during the continuous rotation state or the shifting process, compared with the conventional chain type shifting device. This embodiment can be used for a long time without requiring lubrication and maintenance. In addition, the shift sleeve 830 only moves in translation during the shifting, and the first pawl 612 and the second pawl 831 affected by the shifting sleeve only have a short friction at the moment of the snapping switching, and remain engaged or disengaged for the rest of the time. Component consumption is also minimal.

According to the above embodiments, the magnetic transmission of the present invention has at least the following advantages: First, the present invention refers to the structure of the planetary gear train and is improved, instead of the conventional transmission, the sun gear is driven, and the other components are used to drive the magnetic adjustment. The unit and the outer ring magnetic ring, thereby saving the axial space and reducing the volume of the magnetic transmission. Secondly, the magnetic pole pair and the magnetic conductive block of the invention are used for transmission, and the magnetic drive can eliminate the mechanical friction problem and improve the transmission efficiency of the magnetic transmission. Thirdly, the magnetic modulating unit and the outer ring magnetic ring of the present invention do not have any mechanical friction in the running state or the moment of shifting, so that lubrication and maintenance are not required, and the utility model is not only convenient to use but also more environmentally friendly. Fourth, the present invention utilizes the flow modulation of power to achieve multiple segments Compared with the traditional complex transmission structure, the present invention can achieve the same performance with only a few components, and at the same time reduce the cost, the magnetic transmission is more lightweight, and the flexibility of customization is provided. Fifth, the magnetic transmission of the present invention uses a shifting sleeve to perform shifting compared to a conventional transmission that directly switches a sprocket between gears of different sizes. Since the shifting sleeve is moved in a translational manner, the pawl is matched. In order to engage other parts to switch to different gear positions, it is highly versatile, and even in any operating conditions, the traditional transmission will not be unchained, and the user does not have to worry about the transmission failure and the problem of inability to repair alone. Therefore, it can be widely applied to all consumers.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

100‧‧‧Magnetic gearbox

200‧‧·wheels

300‧‧‧ Inner ring magnetic ring

400‧‧‧Outer ring magnetic ring

420‧‧‧Transmission rim

500‧‧‧Magnetic unit

600‧‧‧First Transmission Module

610‧‧‧first input unit

611‧‧‧ drive parts

612‧‧‧First pawl

613‧‧‧First drive plate

613A‧‧‧Transmission Department

620‧‧‧First output unit

621‧‧‧First occlusion

700‧‧‧Second drive module

710‧‧‧Second input unit

711‧‧‧ accommodating slots

712‧‧‧Second bite

720‧‧‧second output unit

721‧‧‧Second drive plate

722‧‧‧ Output pawl

800‧‧‧Transmission unit

810‧‧‧Advance shaft

820‧‧‧ activities

830‧‧‧Transmission sleeve

831‧‧‧second pawl

832‧‧‧ Foreign Ministry

832A‧‧‧ guiding surface

840‧‧‧Flexible parts

M‧‧‧External power source

R1‧‧‧First Power Path

Claims (28)

A magnetic transmission includes: a hub; an inner ring magnetic ring positioned in the hub; an outer ring magnetic ring disposed between the inner ring magnetic ring and the hub, the outer ring magnetic ring including a plurality of outer magnetic poles a magnetic unit, the ring is disposed between the inner ring magnetic ring and the outer ring magnetic ring, the magnetic regulating unit rotates relative to the inner ring magnetic ring and magnetically pulls the pair of outer magnetic poles, and the magnetic regulating unit comprises a plurality of magnetic conductive blocks, and the number of the magnetic conductive blocks is different from the number of the outer magnetic pole pairs; a first transmission module is connected to an external power source, and the first transmission module comprises: a first input unit Connecting and driving the outer ring magnetic ring to rotate, and the first input unit includes a first pawl; and a first output unit including a first nip for interlocking the first pawl, and the first An output unit is coupled to the hub to drive the hub to rotate; a second transmission module includes: a second input unit that connects and drives the rotation of the magnetic adjustment unit, the second input unit includes a second engagement portion; Two output units, which are rotated by the magnetic unit, The second output unit is coupled to the hub to drive the hub to rotate; and a shifting unit is coupled to the external power source, and the shifting unit is located between the first input unit and the second input unit, the shifting unit is in a Moving between a position and a second position, the shifting unit comprises: a second pawl, the position corresponding to the second engaging portion, the second pawl interlocking the second engaging portion to drive the second input unit when the shifting unit is in the first position; and an outer jaw portion, The position corresponds to the first pawl, and when the shifting unit is in the second position, the outer jaw pushes against the first pawl to control it to disengage from the first nip. The magnetic transmission of claim 1, wherein the first input unit, the second input unit, and the shifting unit are coaxially disposed. The magnetic transmission of claim 2, wherein the shifting unit is disposed inside the first input unit. The magnetic transmission of claim 2, wherein the first input unit is disposed inside the second input unit. The magnetic transmission of claim 1, wherein the second input unit is disposed inside the inner ring magnetic ring. The magnetic transmission of claim 1, wherein the second input unit comprises a receiving slot, and the second engaging portion is disposed in the receiving slot. The magnetic transmission of claim 6, wherein the shifting unit is disposed in the receiving groove. The magnetic transmission of claim 6, wherein the second pawl is disengaged from the second occlusion when the shifting unit is in a third position. The magnetic transmission of claim 6, wherein the outer shank is pushed against the first pawl when the shifting unit is in a third position. The magnetic transmission of claim 1, wherein the first pawl interlocks the first occluding portion when the shifting unit is in the first position. The magnetic transmission of claim 1, wherein the inner ring magnetic ring comprises a plurality of inner magnetic pole pairs, and the number of the magnetic conductive blocks is equal to a sum of the inner magnetic pole pairs and the outer magnetic pole pairs. The magnetic transmission of claim 1, wherein the two adjacent magnetic blocks are spaced apart to have a space, and the magnetic unit is provided with a reinforcing block at each of the intervals. The magnetic transmission of claim 12, wherein the reinforcing blocks are non-magnetic materials. The magnetic transmission of claim 1, wherein the external power source is mounted on a turbine, a bicycle, an electric bicycle, a locomotive, a car or a wheelchair. A magnetic transmission includes: an inner ring magnetic ring; an outer ring magnetic ring, the ring is disposed outside the inner ring magnetic ring, the outer ring magnetic ring includes a plurality of outer magnetic pole pairs; a magnetic adjusting unit, the ring is disposed in the inner ring Between the magnetic ring and the outer ring magnetic ring, the magnetic modulating unit rotates relative to the inner ring magnetic ring and magnetically pulls the pair of outer magnetic poles, and the magnetic modulating unit includes a plurality of magnetic conductive blocks, and the number of the magnetic conductive blocks Different from the number of the outer magnetic pole pairs; a first transmission module is connected to an external power source, the first transmission module is connected to and drives the outer ring magnetic ring to rotate, and the first transmission module includes a first a pawl and a first output unit coupled thereto; a second transmission module coupled to the magnetic modulation unit, the second transmission module including a second output unit rotated by the magnetically modulating unit; and a a shifting unit connected to the external power source, wherein the shifting unit is located between the first transmission module and the second transmission module, the shifting unit is moved between a first position and a second position, the shifting unit Including: a second pawl, the position corresponding to the second transmission mode When the transmission unit in the first position, the second pawl module linked to the second drive means to drive the magnetic transfer; and An outer jaw, the position corresponding to the first pawl, the outer jaw pushing against the first pawl to control the first pawl when the shifting unit is in the second position. The magnetic transmission of claim 15, wherein the first transmission module, the second transmission module, and the shifting unit are coaxially disposed. The magnetic transmission of claim 16, wherein the shifting unit is disposed inside the first transmission module. The magnetic transmission of claim 16, wherein the first transmission module is disposed inside the second transmission module. The magnetic transmission of claim 15, wherein the second transmission module is disposed inside the inner ring magnetic ring. The magnetic transmission of claim 15, wherein the second transmission module includes a receiving groove, and the receiving groove is provided with a second engaging portion, and the second claw passes through the second engaging portion. The second transmission module is linked. The magnetic transmission of claim 20, wherein the shifting unit is disposed in the receiving groove. The magnetic transmission of claim 20, wherein the second pawl is disengaged from the second transmission module when the shifting unit is in a third position. The magnetic transmission of claim 20, wherein when the shifting unit is in a third position, the outer jaw pushes against the first pawl. The magnetic transmission of claim 15, wherein the first pawl interlocks the first output unit when the shifting unit is in the first position. The magnetic transmission of claim 15, wherein the inner ring magnetic ring comprises a plurality of inner magnetic pole pairs, and the number of the magnetic conductive blocks is equal to a sum of the inner magnetic pole pairs and the outer magnetic pole pairs. The magnetic transmission of claim 15, wherein the two adjacent magnetic conductive blocks are spaced apart to have a space, and the magnetic regulating unit is provided with a reinforcing block at each of the intervals. The magnetic transmission of claim 26, wherein the reinforcing blocks are non-magnetic materials. The magnetic transmission of claim 15, wherein the external power source is mounted on a turbine, a bicycle, an electric bicycle, a locomotive, a car or a wheelchair.