Power output wireless torque detection mechanism, and bicycle applied therewith

Abstract

To provide a power output wireless torque detection mechanism, and a bicycle applied therewith.SOLUTION: A power output wireless torque detection mechanism includes an input unit on a fixed body, and an output unit interlocked with the input unit, has a wireless sensor device installed between the input unit and the output unit, detects a rotation torque value and a rotation speed value by the wireless sensor device and transmit a signal in a wireless system, which enables a modularized design, has more excellent versatility, enhances accuracy of torque detection, improves stability and reliability of signal transmission, can more quickly and accurately input subsequent auxiliary power, facilitates assembly and maintenance, and can further reduce total cost.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention is a power output device. Technique It is about techniques. [Background technology]

[0002] In current power-assisted bicycles, the conventional torque detection mechanism used to detect the need for auxiliary power input mainly involves a strain gauge being installed on the surface of the crankshaft. When the cranks on both the left and right sides are depressed, a torsional force causes deformation in the crankshaft. At this time, the strain gauge detects the amount of distortion in the crankshaft and, by using a wireless transmission signal, controls the auxiliary power output by the auxiliary motor via a receiver, thereby assisting the rider and achieving labor savings.

[0003] However, in the above-mentioned structure, since the wireless transmission device requires power, a battery is generally used to supply power to the wireless transmission device, but the battery gradually runs out of power, and the signal of the wireless transmission device weakens and is easily interfered with or becomes unstable, which may affect the output of the auxiliary power. For example, if the received torque value becomes small due to distortion in wireless transmission, the corresponding auxiliary power cannot be effectively and immediately supplied, and conversely, if the received torque value becomes too large due to distortion in wireless transmission, the auxiliary power is supplied too much, which may cause sudden acceleration due to excessive auxiliary power, making it difficult for the vehicle to run smoothly, and at the same time, there are problems such as the feedback lag phenomenon making it impossible to generate auxiliary power immediately and accurately.

[0004] In addition, since the existing wireless transmission device is attached to the power output shaft, the entire power output shaft must be disassembled during assembly, battery replacement, and maintenance, resulting in waste of time and effort. Furthermore, reassembling the parts one by one may result in a decrease in accuracy due to assembly problems, which may affect subsequent torque detection, making assembly and maintenance difficult and substantially increasing the overall cost. Therefore, the objective of the present invention is to overcome the above-mentioned problems. Summary of the Invention [Problem to be solved by the invention]

[0005] The main object of the present invention is to achieve the effect of wireless power supply and , rotation inspection Stable and effective wireless transmission of output signals , nothing This prevents noise interference and distortion caused by weakening of the signal when transmitting through a wire. power machine The purpose of this study is to provide a structure for

[0006] Another main object of the present invention is to provide a power output device that is modularized to increase versatility, is easy to assemble and maintain, does not require battery replacement as in existing devices, ensures the accuracy of signal transmission, and is easy to assemble and maintain, thereby reducing the cost of assembly and maintenance. power machine The purpose of this study is to provide a structure for

[0007] Yet another main object of the present invention is to provide a method for the provision of a rotating shaft. Rotation change The power output of the present invention detects the power output value and outputs it wirelessly with high reliability and accuracy, and inputs the subsequent auxiliary power more immediately and reliably, thereby preventing the power assisted bicycle from experiencing delays in operation or sudden acceleration. power machine To provide a bicycle using the above-mentioned structure. [Means for solving the problem]

[0008] The present invention will now be described. The power output mechanism according to one embodiment of the present invention includes: Power output power machine The structure is as follows: Input shaft pivotable on fixed body (10) and Wireless Sensor Devices (50) and, An auxiliary power unit (40); An output unit (30); of Preparation, before The input shaft (10) is a littleIt can be driven by at least one initial force. 、 The wireless sensor device (50) before A fixing member fixed to the fixing body (51) and, before The input shaft (10) is connected directly or indirectly to the Placed and rotates in synchronism with the input shaft (10). Interlocking parts (55) and Equipped with The fixing member (51) Primary coil on top (52) is installed, and the fixing member (51) Diffraction grating sensor element on top (53) was installed, The interlocking member (55) On the primary coil (52) The secondary coil (56) is installed 、 before The above interlocking parts (55) The fixing member The diffraction grating sensor member (53) of (51) A series of equally spaced sensing elements on a concentric axis corresponding to (57) Equipped with 、 before The above interlocking parts (55)Top To Control circuit board (58) but It is provided, the output unit (30) receives power from the input shaft (10) and auxiliary power from the auxiliary power unit (40), and switches between the power from the input shaft (10) and the auxiliary power from the auxiliary power unit (40), or outputs both the power from the input shaft (10) and the auxiliary power from the auxiliary power unit (40); When the interlocking member (55) rotates in synchronization with the input shaft (10), The secondary coil (56) of the interlocking member (55) can generate electrical energy wirelessly, and the sensing portion (57) of the interlocking member (55) measures the rotation of the input shaft (10) relative to the diffraction grating sensor member (53) of the fixed member (51) and generates a detection signal corresponding to the magnitude of the rotation; The control circuit board (58) transmits a control signal based on the detection signal to the auxiliary power unit (40) by wireless transmission, and auxiliary power is provided from the auxiliary power unit (40) to the output unit (30). It is characterized by:

[0009] In one embodiment of the present invention, The input shaft (10) The wireless sensor device (50) On the other side The above Output Unit (30) was installed, The output unit (30) But before The input shaft (10) Covered transmission shaft sleeve (31) and the transmission shaft sleeve (31) and before With the input shaft (10)At least one first one-way bearing between (32) The output unit (30) Outside The above Auxiliary Power Unit (40) is attached to the auxiliary power unit (40) The transmission shaft sleeve (31) Power components mounted on top (41) and the power member (41) and the inner edge of the transmission shaft sleeve (31) At least one second one-way bearing between (42) was installed, The second one-way bearing (42) The operating direction of the first one-way bearing (32) As opposed to be It is preferable.

[0010] In one embodiment of the present invention, The input shaft (10) Link to top Detection shaft sleeve (15) The output unit (30) and the wireless sensor device (50) The detection shaft sleeve (15) Each is installed on R It is preferable.

[0011] In one embodiment of the present invention, before The input shaft (10) One end has a meshing section N(11) The detection shaft sleeve (15) The input shaft The meshing tooth section (11) of (10) At one end, a corresponding meshing tooth section (16) The detection shaft sleeve is formed (15) The input shaft (10) and the detection shaft sleeve (15) The other end and the input shaft (10). Axis between Receiving(17) is installed Is It is preferable.

[0012] In one embodiment of the present invention, The output unit The transmission shaft sleeve (31) of (30) Further output section at one end of (311) is formed, and the output section (311) The meshing tooth section is used to incorporate the passive member. In a R It is preferable.

[0013] The bicycle according to one embodiment of the present invention includes: Self A wheelbarrow with a crankshaft structure of the body , the above Power output power machine It is structured It is characterized by: [Brief description of the drawings]

[0014] [Figure 1] FIG. 2 is a three-dimensional external view of the present invention. [Diagram 2] FIG. 2 is an exploded view of the output unit of the present invention. [Diagram 3] FIG. 2 is an exploded view of the wireless sensor device of the present invention. [Figure 4] FIG. 2 is a side cross-sectional view of the present invention when initial power is used. [Diagram 5] FIG. 2 is a side cross-sectional view of the present invention when auxiliary power is used. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The power output of the present invention power machine 1, the configuration is composed of an input shaft 10, an output unit 30, an auxiliary power unit 40, and a wireless sensor device 50, among which the input shaft 10 and the auxiliary power unit 40 each output to the output unit 30, and each or both drive a driven object (not shown) such as a power assisted bicycle. The feature of the present invention is that the wireless sensor device 50 installed on the input shaft 10 can accurately detect rotational torque value and rotational speed value, and transmit them wirelessly in real time and accurately.

[0016] The power output power machine As shown in Figures 2, 3 and 4, the detailed configuration of the mechanism is such that at least one of the ends of the input shaft 10 is actuated through the input of initial power and can be rotated about its axis. For example, the input shaft 10 can be the crankshaft of a power-assisted bicycle, and the crankshaft can be actuated by stepping on cranks installed at both ends, generating output through sprockets on the crankshaft and moving a chain to drive the power-assisted bicycle. The input shaft 10 has a meshing tooth section 11 at one end, and a detection shaft sleeve 15 is fitted on the outside of the input shaft 10. The detection shaft sleeve 15 has a shaft hole 150, and a meshing tooth section 16 is formed at one end of the shaft hole 150 of the detection shaft sleeve 15 corresponding to the meshing tooth section 11 of the input shaft 10. The detection shaft sleeve 15 meshes with the input shaft 10 and can rotate synchronously. A bearing 17 is installed between the other end of the shaft hole 150 of the detection shaft sleeve 15 and the input shaft 10 to ensure that the detection shaft sleeve 15 can reflect the torque value between the input shaft 10 and the output unit 30 correspondingly. A first outer bearing 18 is installed on one side of the detection shaft sleeve 15 of the input shaft 10 opposite to the bearing 17, which is used to ensure that the input shaft 10 can rotate freely when assembled into an external fixed body (not shown).

[0017] The output unit 30 is composed of a stepped transmission shaft sleeve 31 corresponding to the input shaft 10 and the detection shaft sleeve 15, the transmission shaft sleeve 31 is installed on the detection shaft sleeve 15 of the input shaft 10, and at least one first one-way bearing 32 is installed between the transmission shaft sleeve 31 and the detection shaft sleeve 15, the first one-way bearing 32 drives in the forward direction and rotates in the reverse direction, and a bearing 34 is installed between the transmission shaft sleeve 31 and the input shaft 10 to ensure the stability and smoothness of the rotation of the transmission shaft sleeve 31. A second outer bearing 35 is installed on the transmission shaft sleeve 31 to ensure that the transmission shaft sleeve 31 can rotate freely when it is installed in an external fixed body (not shown). In addition, an output section 311 is further formed on one outer end of the transmission shaft sleeve 31, and the output section 311 may be a meshing tooth section, which is used to incorporate a passive member (not shown) such as a bicycle chain ring and drive the bicycle via a chain.

[0018] Furthermore, the auxiliary power unit 40 outputs an auxiliary power of a corresponding magnitude by operating a controller driving member (not shown) based on the torque value and rotation speed value of the input shaft 10, and drives the transmission shaft sleeve 31 of the output unit 30. The auxiliary power unit 40 includes a power member 41 mounted on the transmission shaft sleeve 31 of the output unit 30, and at least one second one-way bearing 42 is installed between the inner edge of the power member 41 and the transmission shaft sleeve 31. The operating direction of the second one-way bearing 42 is opposite to that of the first one-way bearing 32. For example, the second one-way bearing 42 may rotate idly in a forward direction and drive in a reverse direction.

[0019] The wireless sensor device 50 is installed on the detection shaft sleeve 15 of the input shaft 10. The wireless sensor device 50 includes a fixed member 51 and an interlocking member 55, of which the fixed member 51 is fixed on the fixed body (not shown) and is used for connecting an electric circuit. A primary coil 52 (primary side) is installed on the fixed member 51, and a diffraction grating sensor member 53 is installed on the fixed member 51. The interlocking member 55 is fixed on the detection shaft sleeve 15 and rotates synchronously with the detection shaft sleeve 15. A secondary coil 56 (secondary side) corresponding to the primary coil 52 of the fixed member 51 is installed on the interlocking member 55, and the secondary coil 56 on the interlocking member 55 can rotate relative to the primary coil 52 on the fixed member 51, and can cut the magnetic field lines to allow the secondary coil 56 of the interlocking member 55 to generate electric energy wirelessly. The interlocking member 55 also includes a series of equally spaced sensing portions 57 on a concentric axis corresponding to the diffraction grating sensor member 53 of the fixed member 51. When the interlocking member 55 rotates in synchronism with the input shaft 10 via the detection shaft sleeve 15, the sensing portions 57 of the interlocking member 55 measure the rotational speed of the input shaft 10 relative to the diffraction grating sensor member 53 of the fixed member 51, and a value corresponding to the magnitude of the rotational speed value is generated. Detection Signal A control circuit board 58 is electrically connected to the interlocking member 55, and the control circuit board 58 generates a signal. Detection Signal Based on the signal, a control signal (for example, to switch to an external force drive mode) can be wirelessly transmitted to operate a drive member (such as a motor) to operate the power member 41 of the auxiliary power unit 40, thereby outputting auxiliary power to the transmission shaft sleeve 31 of the output unit 30.

[0020] As a result, the primary coil 52 and the secondary coil 56 facing each other between the fixed member 51 and the interlocking member 55 of the wireless sensor device 50 generate wireless power supply, and the control circuit board 58 on the interlocking member 55 outputs the torque value and the rotation speed value. Detection Signal The auxiliary power unit 40 converts the torque value and rotation speed value of the input shaft 10 into a corresponding auxiliary power to the output unit 30, and transmits the control signal by wireless. power machine It is possible to configure the structure.

[0021] The power output of the present invention power machine When the structure is actually operated, as shown in Figs. 1 and 4, when the input shaft 10 obtains initial power from at least one of its ends, for example when the input shaft 10 is a bicycle crankshaft, the cranks at both ends are depressed to input initial power, and the input shaft 10 moves the transmission shaft sleeve 31 of the output unit 30 through the detection shaft sleeve 15 and the first one-way bearing 32, so that the transmission shaft sleeve 31 can be driven by the initial power, and the transmission shaft sleeve 31 forms an idling motion with respect to the power member 41 by the second one-way bearing 42 on its outer edge, so that the drive member of the controller is moved in the reverse direction and is not damaged. At the same time, the wireless sensor device 50 utilizes the relative induction phenomenon between the primary coil 52 and the secondary coil 56 between the fixed member 51 and the interlocking member 55 interlocked with the detection shaft sleeve 15 to wirelessly generate and supply the necessary power to the control circuit board 58 of the wireless sensor device 50, and measures the magnitude of the torque value and rotation speed value of the detection shaft sleeve 15 of the input shaft 10, and transmits the corresponding torque value and rotation speed value to a controller (not shown). Detection Signal A signal can be provided to the controller to determine whether a predetermined value has been exceeded. Detection Signal If the signal does not reach the set value for operating the auxiliary power unit 40, the power member 41 of the auxiliary power unit 40 will be stationary, and idling will be created between the transmission shaft sleeve 31 of the output unit 30 and the power member 41 of the auxiliary power unit 40 due to the installation of the second one-way bearing 42, so that the controller drive member (not shown) such as a motor engaged with the power member 41 of the auxiliary power unit 40 will not be operated, and damage to the drive member can be avoided.

[0022] As shown in Figures 4 and 5, when the input shaft 10 is driven by the initial power, the torque value increases and the rotation speed value slows down (for example, when riding a bicycle up a slope), and when the controller reaches a predetermined value or when the drive member is to be directly operated, the controller operates the drive member meshed with the drive member 41 of the auxiliary power unit 40, and the auxiliary power unit 40 outputs the corresponding auxiliary power, so that the drive member 41 can rotate the transmission shaft sleeve 31 of the output unit 30 via the second one-way bearing 42. In addition, since the first one-way bearing 32 is installed between the transmission shaft sleeve 31 and the detection shaft sleeve 15 of the output unit 30, idling is formed between them, and the initial power transmitted from the input shaft 10 and the auxiliary power transmitted from the drive member 41 of the auxiliary power unit 40 do not interfere with each other.

[0023] Based on the above design and description, the power output of the present invention power machine The mechanism utilizes the design of the wireless sensor device 50 to wirelessly provide power, and the control circuit board 58 of the interlocking member 55 detects the magnitude of the torque value and rotation speed value of the detection shaft sleeve 15 of the input shaft 10, and wirelessly Detection Signal The auxiliary power unit 40 can provide auxiliary power to the output unit 30 based on the magnitude of the torque value and rotation speed value of the input shaft 10 by transmitting a signal to the output unit 30, thereby achieving the effect of wireless power supply. The torque value and rotation speed value can be accurately detected, and the detection signal can be stably and effectively transmitted wirelessly, thereby avoiding noise interference and distortion caused by weakening of the signal during wireless transmission.

[0024] At the same time, the modular structure makes assembly and maintenance easy, and there is no need to replace batteries as with existing devices, ensuring the accuracy of signal transmission while making assembly and maintenance easier, thereby reducing the costs of assembly and maintenance.When this is applied to a power-assisted bicycle, etc. to detect changes in the torque and rotation speed of the rotating shaft, the wireless method allows for highly reliable and accurate output, and subsequent auxiliary power can be input more immediately and reliably, preventing operation delays and sudden acceleration phenomena in the power-assisted bicycle. [Explanation of symbols]

[0025] 10 Input shaft 11 Teeth Section 15 Detection shaft sleeve 150 Shaft hole 16 Teeth Section 17 Bearings 18 1st outer bearing 30 Output Units 31 Transmission shaft sleeve 311 Output Section 32 No. 1 one-way bearing 34 Bearings 35 2nd outer bearing 40 Auxiliary Power Unit 41 Power Components 42 No. 2 one-way bearing 50 Wireless Sensor Device 51 Fixing member 52 Primary coil 53 Diffraction grating sensor component 55 Interlocking parts 56 Secondary coil 57 Sensing part 58 Control circuit board

Claims

1. A power output mechanism comprising: An input shaft (10) that can be pivoted on a fixed body; A wireless sensor device (50); An auxiliary power unit (40); An output unit (30), The input shaft (10) is capable of receiving at least one initial power and being driven. The wireless sensor device (50), A fixing member (51) fixed to the fixed body; a linking member (55) that is directly or indirectly installed on the input shaft (10) and rotates in synchronization with the input shaft (10); A primary coil (52) is mounted on the fixed member (51), and a diffraction grating sensor member (53) is mounted on the fixed member (51); A secondary coil (56) corresponding to the primary coil (52) is installed on the interlocking member (55), the interlocking member (55) is provided with a series of equally spaced sensing portions (57) on a concentric axis corresponding to the diffraction grating sensor member (53) of the fixed member (51); A control circuit board (58) is provided on the interlocking member (55), the output unit (30) receives power from the input shaft (10) and auxiliary power from the auxiliary power unit (40), and switches between the power from the input shaft (10) and the auxiliary power from the auxiliary power unit (40), or outputs both the power from the input shaft (10) and the auxiliary power from the auxiliary power unit (40); When the interlocking member (55) rotates in synchronization with the input shaft (10), The secondary coil (56) of the interlocking member (55) can generate electrical energy wirelessly, and the sensing portion (57) of the interlocking member (55) measures the rotation of the input shaft (10) relative to the diffraction grating sensor member (53) of the fixed member (51) and generates a detection signal corresponding to the magnitude of the rotation; The control circuit board (58) transmits a control signal based on the detection signal to the auxiliary power unit (40) by wireless transmission, and auxiliary power is provided from the auxiliary power unit (40) to the output unit (30). A power output mechanism comprising:

2. The power output mechanism according to claim 1, The output unit (30) is installed on one side of the input shaft (10) opposite to the wireless sensor device (50), The output unit (30) comprises a transmission shaft sleeve (31) fitted on the input shaft (10), and at least one first one-way bearing (32) is installed between the transmission shaft sleeve (31) and the input shaft (10); the auxiliary power unit (40) is fitted on the outside of the output unit (30); the auxiliary power unit (40) comprises a power member (41) fitted on the transmission shaft sleeve (31), and at least one second one-way bearing (42) is installed between the inner edge of the power member (41) and the transmission shaft sleeve (31); The second one-way bearing (42) operates in an opposite direction to the first one-way bearing (32). A power output mechanism comprising:

3. The power output mechanism according to claim 1, A detection shaft sleeve (15) is installed on the input shaft (10) and the output unit (30) and the wireless sensor device (50) are installed on the detection shaft sleeve (15). A power output mechanism comprising:

4. The power output mechanism according to claim 3, The input shaft (10) has an engaging tooth section (11) at one end, and the detection shaft sleeve (15) has a corresponding engaging tooth section (16) at one end corresponding to the engaging tooth section (11) of the input shaft (10), so that the detection shaft sleeve (15) can be engaged with the input shaft (10) and rotated synchronously. Furthermore, a bearing (17) is installed between the other end of the detection shaft sleeve (15) and the input shaft (10). A power output mechanism comprising:

5. The power output mechanism according to claim 2, An output section (311) is further formed at one end of the transmission shaft sleeve (31) of the output unit (30), and the output section (311) is a meshing tooth section used for assembling a passive member. A power output mechanism comprising:

6. A bicycle, the crankshaft of which has a structure that is the power output mechanism according to any one of claims 1 to 5. A bicycle characterized by:

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