CN221938400U - A torque signal device and a mid-mounted motor system - Google Patents

Abstract

The utility model discloses a torque signal device and a central motor system, wherein the torque signal device comprises a spline center shaft, a human torque transmitter and a human hollow shaft coaxially sleeved and connected to the spline center shaft, a torque signal operation stator sleeved on the human torque transmitter, and a controller connected to the torque signal operation stator, one end of the human hollow shaft is splined with the human torque transmitter, and the other end is connected to the human clutch, a plurality of protruding annular patterns are formed on the outer surface of the human torque transmitter, and the controller is connected to the electric drive output mechanism. The utility model can effectively realize the human-electric hybrid mode while improving the motor efficiency and reducing the circuit loss.

Description

A torque signal device and a mid-mounted motor system

Related application instructions

The utility model is a divisional application entitled "A torque-type coaxial mid-mounted motor system", with an application date of December 13, 2023 and an application number of CN202323397737.5.

Technical Field

The utility model relates to the technical field of motors, in particular to a torque signal device and a central motor system.

Background Art

Existing power-assisted bicycles generally adopt three riding modes, namely, pure electric mode, pure human-powered mode and human-electric hybrid mode. However, the existing human-electric hybrid mode has low motor efficiency and large circuit loss. Therefore, it is necessary to improve the human-electric drive device to improve motor efficiency and reduce circuit loss.

Utility Model Content

In order to solve at least one of the problems mentioned in the above background technology, the utility model provides a torque signal device and a mid-mounted motor system. The torque signal device can effectively realize the human-electric hybrid mode while improving the motor efficiency and reducing circuit losses.

The specific technical solutions provided by the utility model are as follows:

On the one hand, a torque signal device is provided, comprising a spline center shaft, a human torque transmitter and a human hollow shaft coaxially sleeved on the spline center shaft, a torque signal operation stator sleeved on the human torque transmitter, and a controller connected to the torque signal operation stator, one end of the human hollow shaft is splined with the human torque transmitter, and the other end is connected to the human clutch, a plurality of protruding annular patterns are formed on the outer surface of the human torque transmitter, and the controller is connected to the electric drive output mechanism.

By means of the above technical scheme, when the utility model is driven by human-electric hybrid, the spline center shaft is rotated by human power, the spline center shaft drives the human power torque transmitter to rotate, the human power torque transmitter drives the human power driven hollow shaft to rotate, the human power driven hollow shaft outputs power through the human power clutch, and at the same time, the annular texture on the human power torque transmitter undergoes micro-deformation under the force state, the micro-deformation generates an electromagnetic induction signal, which is collected by the energized torque signal operation stator, the torque signal operation stator sends the signal to the controller for information logic operation, the controller processes the signal into five-speed output signals and sends them to the electric drive output mechanism, so that according to different riding environment states (climbing, driving against the wind, etc.), the electric drive output mechanism is driven to achieve different electric power output to assist human power output, human power and electricity jointly drive the vehicle body, the drive is flexible, the torque coordination is comfortable, and the motor efficiency is high and the circuit loss is small.

As a preferred embodiment of the above scheme, the annular pattern includes a first annular pattern and a second annular pattern formed on the outer surface of the human torque transmitter, and a third annular pattern formed on the first annular pattern. According to the above scheme, when the human torque transmitter rotates, the first annular pattern, the second annular pattern and the third annular pattern on which it rides undergo micro-deformation, and the micro-deformation generates an electromagnetic induction signal, which is collected by the energized torque signal calculation stator.

As a preferred embodiment of the above scheme, the manual clutch includes a manual driving head sleeved on the manual hollow shaft and matched with the manual hollow shaft spline, and a manual inner gear ring sleeved outside the manual driving head. When the manual driving head rotates forward, it drives the manual inner gear ring to rotate forward, and vice versa, it releases the manual inner gear ring. The outer sleeve of the manual inner gear ring is connected to a clutch housing, and a protective plate is provided in the clutch housing, and the protective plate is fixed to one end of the manual driving head. According to the above scheme, when the manual hollow shaft rotates forward, it drives the manual driving head to rotate forward, and the manual driving head drives the manual inner gear ring to rotate forward, thereby driving the clutch housing to rotate, and outputting the manual power through the clutch housing.

As a preferred embodiment of the above scheme, the electric drive output mechanism includes a motor unit, a transmission unit and an electric clutch connected in sequence. According to the above scheme, the torque signal operation stator sends the signal to the controller for information logic operation, and the controller processes the signal into a five-speed output signal and sends it to the motor unit, so that according to different riding environment states (climbing, driving against the wind, etc.), the motor unit is in different operating states, and the transmission of the transmission unit and the electric clutch realizes electric power output to assist human power output.

As a preferred embodiment of the above scheme, the motor unit includes a motor stator connected to the controller and a motor rotor connected to the transmission unit. According to the above scheme, the controller processes the signal into five-speed output signals and sends them to the motor stator, so that the motor stator and the motor rotor are in different operating states, and finally realizes electric power output to assist human power output.

As a preferred embodiment of the above scheme, the electric clutch includes an electric drive head connected to the transmission unit and an electric inner gear ring sleeved outside the electric drive head, and the electric drive head drives the electric inner gear ring to rotate forward when the electric drive head rotates forward, and releases the electric inner gear ring when the electric drive head rotates forward. According to the above scheme, the transmission unit drives the electric drive head to rotate forward, and the electric drive head drives the electric inner gear ring to rotate forward, thereby outputting electric power.

As a preferred embodiment of the above scheme, the transmission unit is a planetary transmission unit, and the planetary transmission unit includes a primary planetary gear mechanism and a secondary planetary gear mechanism. According to the above scheme, the output torque of the motor can be increased through the power transmission of the primary planetary gear mechanism and the secondary planetary gear mechanism, thereby effectively improving the power assist performance.

As a preferred embodiment of the above scheme, the inner wall of the human torque transmitter is spline-matched with the spline center shaft, and the outer wall of the human torque transmitter is spline-matched with the inner wall of one end of the human hollow shaft. According to the above scheme, the human torque transmitter is effectively driven to rotate when the spline center shaft rotates through the spline cooperation, and the human torque transmitter effectively drives the human hollow shaft to rotate.

As a preferred embodiment of the above solution, the controller is arranged on a controller patch board, and the controller is electrically connected to the torque signal calculation stator and the electric drive output mechanism.

On the other hand, a mid-mounted motor system is provided, comprising the above-mentioned torque signal device.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

FIG1 is a schematic diagram of the three-dimensional structure of the central motor system of the utility model;

FIG2 is a schematic diagram of the structure of FIG1 without the housing and the big five-way connection;

FIG3 is a schematic diagram of the structure of the torque signal device of the utility model;

FIG4 is a schematic diagram of the three-dimensional structure of the motor unit of the present utility model;

FIG. 5 is a schematic diagram of the exploded structure of the human clutch and the electric clutch of the present invention.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

The following content refers to Figures 1 to 5.

The torque signal device described in the utility model comprises a spline center shaft 1, a human torque transmitter 2 and a human hollow shaft 3 coaxially sleeved and connected to the spline center shaft 1, a torque signal operation stator 4 sleeved on the human torque transmitter 2, and a controller (not shown) connected to the torque signal operation stator 4, one end of the human hollow shaft 3 is splined with the human torque transmitter 2, and the other end is connected to the human clutch 5, a plurality of protruding annular lines 21 are formed on the outer surface of the human torque transmitter 2, and the controller is connected to the electric drive output mechanism 6. In this embodiment, the annular lines 21 include a first annular line 211 and a second annular line 212 formed on the outer surface of the human torque transmitter 2, and a third annular line 213 formed on the first annular line 211. When the human torque transmitter 2 rotates, the first ring pattern 211, the second ring pattern 212 and the third ring pattern 213 thereon are slightly deformed, and the slightly deformed pattern generates an electromagnetic induction signal, which is collected by the energized torque signal operation stator 4. In this embodiment, the torque signal operation stator 4 is a three-phase six-wire low-voltage motor, which can upgrade the logic operation capability, improve the efficiency of the motor control circuit, and reduce the loss in the circuit.

The electric drive output mechanism 6 includes a motor unit 61, a transmission unit 62 and an electric clutch 63 connected in sequence, and the motor unit 61 includes a motor stator 611 connected to the controller and a motor rotor 612 connected to the transmission unit. The torque signal operation stator 4 sends the signal to the controller for information logic operation, and the controller processes the signal into a five-speed output signal and sends it to the motor stator 611, so that according to different riding environment states (climbing, driving against the wind, etc.), the motor stator 611 and the motor rotor 612 are in different operating states, and the transmission of the transmission unit 62 and the electric clutch 63 realizes the electric power output to assist the human power output. The transmission unit 62 is a planetary transmission unit, and the planetary transmission unit includes a primary planetary gear mechanism (not shown) and a secondary planetary gear mechanism (not shown). Through the power transmission of the primary planetary gear mechanism and the secondary planetary gear mechanism, the output torque of the motor can be increased, thereby effectively improving the power-assisting performance.

The manual clutch 5 includes a manual driving head 51 sleeved on the manual hollow shaft 3 and splined with the manual hollow shaft 3, and a manual inner gear ring 52 sleeved outside the manual driving head 51. When the manual driving head 51 rotates forward, it drives the manual inner gear ring 52 to rotate forward, and vice versa, it releases the manual inner gear ring 52. The outer portion of the manual inner gear ring 52 is connected to a clutch housing 7, and a protective plate (not shown) is provided inside the clutch housing 7. The protective plate is fixed to one end of the manual driving head 51. When the manual hollow shaft 3 rotates forward, it drives the manual driving head 51 to rotate forward, and the manual driving head 51 drives the manual inner gear ring 52 to rotate forward, thereby driving the clutch housing 7 to rotate, and outputting the manual power through the clutch housing 7. The electric clutch 63 includes an electric drive head 631 connected to the transmission unit 62 and an electric inner gear ring 632 sleeved outside the electric drive head 631. When the electric drive head 631 rotates forward, it drives the electric inner gear ring 632 to rotate forward, and vice versa, it releases the electric inner gear ring 632. In this embodiment, the outer portion of the human inner gear ring 632 is connected to the clutch housing 7. The transmission unit 62 drives the electric drive head 631 to rotate forward, and the electric drive head 631 drives the electric inner gear ring 632 to rotate forward, thereby driving the clutch housing 7 to rotate, and outputting electric power through the clutch housing 7. In this embodiment, the clutch housing 7 is connected to a toothed disc bracket 8, and the clutch housing drives the toothed disc bracket 8 to rotate. A plurality of toothed discs are provided on the toothed disc bracket, and the toothed discs are connected to a chain to form a power output load.

The inner wall of the human torque transmitter 2 is spline-matched with the spline center shaft 1, and the outer wall of the human torque transmitter 2 is spline-matched with the inner wall of one end of the human hollow shaft 1. The spline matching makes it possible for the human torque transmitter 2 to be effectively driven to rotate when the spline center shaft 1 rotates, and the human torque transmitter 2 effectively drives the human hollow shaft 3 to rotate. The setting of the human hollow shaft 3 in the utility model can effectively cooperate with the human torque transmitter 2 to realize human power transmission, and the hollow structure of the human hollow shaft 3 can also reduce the noise during rotation, making the entire motor system quieter. In this embodiment, the controller is arranged on the controller patch board 103, and the controller is electrically connected to the torque signal calculation stator 4 and the electric drive output mechanism 6.

In addition, the utility model also provides a central motor system, including the above-mentioned torque signal device, and also includes a cylindrical housing 100, a large five-way 101 fixed in the housing 100, and a stator bracket 102 fixed on the large five-way 101, the torque signal operation stator 4 and the motor stator 611 are fixed on the stator bracket 102, the torque signal operation stator 4 is fixed on the stator bracket 102 and the coil is energized during operation, specifically, the torque signal operation stator 4 is connected to a five-volt power supply, so that the torque signal operation stator 4 can more effectively collect the torque signal of the human torque transmitter 2, and the large five-way 101 is arranged outside the motor rotor 612 with a clearance fit, so that the noise can be reduced when the motor rotor 612 rotates. At the same time, the central motor system of the utility model is provided with sealing rings at the corresponding positions of each component to ensure sealing; and bearings and shaft retaining rings are provided at the corresponding rotation positions to ensure reliable rotation.

When the utility model is driven by human and electricity hybrid, the spline center shaft 1 is driven by human power to rotate, the spline center shaft 1 drives the human torque transmitter 2 to rotate, the human torque transmitter 2 drives the human-driven hollow shaft 3 to rotate, the human-driven hollow shaft 3 outputs power through the human clutch 5, and at the same time, the annular texture 21 of the human torque transmitter 2 undergoes micro-deformation under the force state, and the micro-deformation generates an electromagnetic induction signal, which is collected by the energized torque signal operation stator 4, and the torque signal operation stator 4 sends the signal to the controller for information logic operation, and the controller processes the signal into five-speed output signals and sends them to the electric drive output mechanism 6, so that according to different riding environment states (climbing, driving against the wind, etc.), the electric drive output mechanism 6 is driven to achieve different electric power outputs to assist human power output, and human power and electricity jointly drive the vehicle body, and the driving is flexible and the torque coordination is comfortable. At the same time, the motor efficiency is high and the circuit loss is small.

In summary, the utility model provides a torque signal device and a mid-mounted motor system, and the torque signal device can effectively realize the human-electric hybrid mode while improving the motor efficiency and reducing circuit losses.

Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (10)

1. A torque signal device, characterized in that it includes a spline center shaft, a human torque transmitter and a human hollow shaft coaxially sleeved on the spline center shaft, a torque signal operation stator sleeved on the human torque transmitter, and a controller connected to the torque signal operation stator, one end of the human hollow shaft is splined with the human torque transmitter, and the other end is connected to the human clutch, a plurality of protruding annular patterns are formed on the outer surface of the human torque transmitter, and the controller is connected to the electric drive output mechanism. 2. The torque signal device according to claim 1 is characterized in that the annular pattern includes a first annular pattern and a second annular pattern formed on the outer surface of the human torque transmitter, and a third annular pattern formed on the first annular pattern. 3. The torque signal device according to claim 1 is characterized in that the manual clutch includes a manual driving head sleeved on the manual hollow shaft and splined with the manual hollow shaft, and a manual internal gear ring sleeved outside the manual driving head, and the manual driving head drives the manual internal gear ring to rotate forward when rotating forward, and releases the manual internal gear ring when rotating forward, and the outer sleeve of the manual internal gear ring is connected to a clutch housing, and a protective plate is provided in the clutch housing, and the protective plate is fixed to one end of the manual driving head. 4. The torque signal device according to claim 1, characterized in that the electric drive output mechanism comprises a motor unit, a transmission unit and an electric clutch connected in sequence. 5 . The torque signal device according to claim 4 , wherein the motor unit comprises a motor stator connected to a controller and a motor rotor connected to the transmission unit. 6. The torque signal device according to claim 4 is characterized in that the electric clutch includes an electric drive head connected to the transmission unit and an electric internal gear ring sleeved outside the electric drive head, and the electric drive head drives the electric internal gear ring to rotate forward when it rotates forward, and releases the electric internal gear ring when it rotates backward. 7 . The torque signal device according to claim 4 , characterized in that the transmission unit is a planetary transmission unit, and the planetary transmission unit includes a primary planetary gear mechanism and a secondary planetary gear mechanism. 8. The torque signal device according to claim 1 is characterized in that the inner wall of the human torque transmitter is spline-matched with the spline center shaft, and the outer wall of the human torque transmitter is spline-matched with the inner wall of one end of the human hollow shaft. 9. The torque signal device according to claim 1 is characterized in that the controller is arranged on a controller patch board, and the controller is electrically connected to the torque signal calculation stator and the electric drive output mechanism. 10. A mid-mounted motor system, characterized by comprising the torque signal device according to any one of claims 1-9.