CN109649569B - Tower foundation torque sensing device and electric bicycle - Google Patents
Tower foundation torque sensing device and electric bicycle Download PDFInfo
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- CN109649569B CN109649569B CN201910135049.0A CN201910135049A CN109649569B CN 109649569 B CN109649569 B CN 109649569B CN 201910135049 A CN201910135049 A CN 201910135049A CN 109649569 B CN109649569 B CN 109649569B
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- 230000006698 induction Effects 0.000 claims abstract description 121
- 230000002093 peripheral effect Effects 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010433 powder painting Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000010422 painting Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/45—Control or actuating devices therefor
- B62M6/50—Control or actuating devices therefor characterised by detectors or sensors, or arrangement thereof
Abstract
The invention relates to a tower foundation torque sensing device and an electric bicycle, wherein the tower foundation torque sensing device comprises a flywheel fixed shell, a tower foundation main body, a signal processor and an induction coil; the flywheel fixing shell is sleeved outside the tower foundation main body; the tower foundation main body comprises a relative rotation part, a moment induction deformation part and a load connection part, and the relative rotation part, the moment induction deformation part and the load connection part are sequentially connected from one end of the tower foundation main body to the other end of the tower foundation main body; a torque induction soft magnetic deformation unit is arranged on the inner peripheral surface of the torque induction deformation part; the induction coil is arranged in the tower foundation main body, and the positions of the induction coil and the torque force induction soft magnetic deformation unit correspond to each other; the signal processor is electrically connected with the induction coil; the latter includes the former. The invention integrates the moment sensor into the tower foundation, can not only meet the use of the conventional center shaft fittings of the bicycle, but also reduce the cost and meet the requirement of the riding comfort of the moment.
Description
Technical Field
The invention relates to the technical field of torque detection, in particular to a tower foundation torque sensing device and an electric bicycle.
Background
The electric bicycle is a electromechanical integrated personal transportation tool which is based on a common bicycle and takes a storage battery as an auxiliary energy source, and is provided with a motor, a controller, a storage battery, a brake handle and other operating components and a display instrument system. At present, the moment sensor is installed on a central shaft of the electric bicycle more and more, so that the output power of a motor of the electric bicycle can be adjusted according to the measured torque in the riding process, and the riding comfort is improved.
In the related art, a bilateral moment sensor is arranged on a central shaft of an electric bicycle to detect the torque of the electric bicycle, a torque induction sleeve is sleeved on the central shaft, and a crank and a tooth disc connected with the central shaft are specially made, so that the problems of complex structure and high cost exist.
Disclosure of Invention
The invention aims to provide a tower foundation torque sensing device and an electric bicycle, so as to solve the problems that in the prior art, when a bilateral torque sensor is arranged on a central shaft of the electric bicycle to detect the torque of the electric bicycle, a torque sensing sleeve is required to be sleeved on the central shaft, and a crank and a toothed disc connected with the central shaft are required to be specially manufactured, so that the problems of complex structure and high cost are solved.
In order to achieve the purpose of the invention, the following technical scheme is adopted:
in a first aspect, an embodiment of the present invention provides a tower foundation torque sensing device, including a flywheel stationary housing, a tower foundation body, a signal processor, and an induction coil.
The flywheel fixing shell is sleeved outside the tower foundation main body. The tower foundation main body comprises a relative rotation part, a moment induction deformation part and a load connection part, wherein the relative rotation part, the moment induction deformation part and the load connection part are sequentially connected from one end of the tower foundation main body to the other end of the tower foundation main body; and a torque induction soft magnetic deformation unit is arranged on the inner peripheral surface of the torque induction deformation part. The induction coil is arranged in the tower foundation main body, and the positions of the induction coil and the torque force induction soft magnetic deformation unit correspond to each other. The signal processor is electrically connected with the induction coil.
With reference to the first aspect, the embodiment of the present invention provides a first possible implementation manner of the first aspect, where the torque-sensing soft magnetic deformation unit is integrally formed with the torque-sensing deformation part.
With reference to the first aspect, the embodiment of the present invention provides a second possible implementation manner of the first aspect, where the torque-sensing soft magnetic deformation unit is attached to an inner peripheral surface of the torque-sensing deformation portion through an attaching process.
With reference to the first aspect and the first or second possible implementation manners of the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the torsion-sensing soft magnetic deformation unit is a soft magnetic sheet, and a plurality of through holes are formed in the soft magnetic sheet; or the torsion induction soft magnetic deformation unit is an inclined toothed ring distributed around the radial circumferential direction of the moment induction deformation part.
With reference to the first aspect, the embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the tower base torque sensing device further includes a pawl and spring structure; a pawl groove is formed in the outer peripheral surface of the tower base main body, and the pawl is fixed in the pawl groove through the spring structure body.
With reference to the first aspect, the embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where the tower base torque sensing device further includes a sleeve bracket; the sleeve support is arranged in the moment induction deformation part, and the induction coil is sleeved on the sleeve support.
With reference to the first aspect and the fifth possible implementation manner, the embodiment of the present invention provides a sixth possible implementation manner of the first aspect, where the signal processor is mounted on a signal processor board, and the signal processor board is fixed on the sleeve bracket.
With reference to the first aspect, the embodiment of the present invention provides a seventh possible implementation manner of the first aspect, and an electromagnetic shielding body for shielding electromagnetic interference of the outside to the induction coil is further installed inside the tower base main body.
With reference to the first aspect, an embodiment of the present invention provides an eighth possible implementation manner of the first aspect, where the tower base torque sensing device further includes a tower base locking bracket body.
The first end of the tower foundation locking support body is connected with the second end of the tower foundation main body, and the inner peripheral surface of the second end of the flywheel fixing shell is connected with the outer peripheral surface of the tower foundation locking support body and the inner peripheral surface of the first end of the flywheel fixing shell is connected with the outer peripheral surface of the first end of the tower foundation main body in a rolling way through balls.
In a second aspect, an embodiment of the present invention further provides an electric vehicle, including the tower base torque sensing device provided in the first aspect and one of possible embodiments thereof.
Compared with the prior art, the invention has the following beneficial effects.
A first aspect of an embodiment of the present invention provides a tower foundation torque sensing device comprising a flywheel stationary housing, a tower foundation body, a signal processor, and an induction coil.
The flywheel fixing shell is sleeved outside the tower foundation main body. The tower foundation main body comprises a relative rotation part, a moment induction deformation part and a load connection part, and the relative rotation part, the moment induction deformation part and the load connection part are sequentially connected from one end of the tower foundation main body to the other end of the tower foundation main body; the torque induction soft magnetic deformation unit is arranged on the inner peripheral surface of the torque induction deformation part. The induction coil is arranged in the tower foundation main body, and the positions of the induction coil and the torque force induction soft magnetic deformation unit correspond to each other. The signal processor is electrically connected with the induction coil.
A second aspect of the embodiments of the present invention provides an electric bicycle, which includes the tower base torque sensing device provided in the first aspect of the embodiments of the present invention.
In the embodiment of the invention, one end of the tower foundation body forms a relative rotation part of the tower foundation body, the other end of the tower foundation body forms a load connection part of the tower foundation body, and a moment induction deformation part is formed between the relative rotation part and the load connection part.
When the electric bicycle or the electric booster bicycle is used, the tower foundation is assembled on a rear hub or a hub motor shell of the electric bicycle, in particular, the flywheel fixing shell is connected with the flywheel, and the load connecting part of the tower foundation main body is connected with the right side of the rear hub or the right side flywheel side end cover of the hub motor shell; external force applies torsion to the flywheel fixing shell through the flywheel, the flywheel fixing shell transmits the torsion to the relative rotating part of the tower foundation main body, the torque induction deformation part of the tower foundation main body applies torsion to the load connecting part of the tower foundation main body, in the process, the torque induction deformation part of the tower foundation main body can generate deformation corresponding to the torsion, thereby the torque induction soft magnetic deformation unit arranged in the torque induction deformation part also generates corresponding circumferential deformation, at the moment, the relative area of the induction coil and the torque induction soft magnetic deformation unit also changes, thereby the magnetic field of the induction coil changes, the induction electromotive force of the induction coil changes, and the signal processor extracts an electric signal which is changed due to the circumferential torque of the induction coil, thus the torque signal corresponding to the circumferential force.
The tower foundation torque sensing device and the electric bicycle provided by the embodiment of the invention integrate the torque sensor into the tower foundation, and then are installed on the rear wheel hub or the end cover part of the hub motor through the load connecting part of the tower foundation main body, so that the structure is simple, the conventional center shaft accessory of the bicycle can be met, the cost can be reduced, the requirement of the riding comfort of the torque can be met, and in addition, the whole bicycle can be ensured to have good succinct aesthetic degree.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing the overall structure of a tower foundation torque sensor device according to a first embodiment of the present invention;
FIG. 2 is a schematic view showing the overall structure of a tower foundation torque sensor device according to the first embodiment of the present invention from another perspective;
fig. 3 is a sectional view showing fig. 2;
FIG. 4 is an exploded view showing the overall construction of a tower foundation torque sensor device according to a first embodiment of the present invention;
fig. 5 is a schematic diagram showing the overall structure of a tower foundation body in another more specific structural form of a torque-induced soft magnetic deformation unit in a tower foundation torque sensor device according to an embodiment of the present invention.
Reference numerals: 1-a tower base main body; 11-a relative rotation section; 111-detent grooves; 112-pawl; 113-spring structure; 1131-spring structure mounting slots; 12-load connection; 13-moment induction deformation part; 14-electromagnetic shielding; 15-a signal output line; 2-flywheel fixed housing; 3-tower foundation locking support body; 4-sleeve support; 41-coil fixing grooves; 42-signal processing board mounting slots; a 5-signal processor; 6-an induction coil; 71-a first bearing; 72-a second bearing; 8-balls; 9-ball receiving grooves; 10-soft magnetic sheet; 101-oblique insection ring.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
According to the specific structure of the present invention, the following several specific embodiments can be classified.
Example 1
FIG. 1 is a schematic view showing the overall structure of a tower foundation torque sensor device according to a first embodiment of the present invention; FIG. 2 is a schematic view showing the overall structure of a tower foundation torque sensor device according to the first embodiment of the present invention from another perspective; fig. 3 is a sectional view showing fig. 2; FIG. 4 is an exploded view showing the overall construction of a tower foundation torque sensor device according to a first embodiment of the present invention.
Referring to fig. 1 to 4, the present embodiment provides a tower base torque sensing device including a flywheel stationary housing 2, a tower base body 1, a signal processor 5 and an induction coil 6.
The flywheel fixing shell 2 is sleeved outside the tower foundation main body 1; the tower foundation main body 1 comprises a relative rotation part 11, a moment induction deformation part 13 and a load connection part 12, wherein the relative rotation part 11, the moment induction deformation part 13 and the load connection part 12 are sequentially connected from one end of the tower foundation main body 1 to the other end of the tower foundation main body 1; torque induction soft magnetic deformation units are arranged on the inner peripheral surface of the torque induction deformation part 13; the induction coil 6 is arranged in the tower foundation main body 1, and the positions of the induction coil 6 and the torque force induction soft magnetic deformation unit correspond to each other; the signal processor 5 is electrically connected to the induction coil 6, and specifically, the signal processor 5 may be located inside the tower base body 1, or the signal processor 5 may be fixed to one side of the exterior of the tower base body 1, and the tower base body 1 may be rotatable relative to the signal processor 5.
In the embodiment, one end of the tower foundation body 1 forms a relative rotation part 11 of the tower foundation body 1, the other end of the tower foundation body 1 forms a load connection part 12 of the tower foundation body 1, and a moment induction deformation part 13 is formed between the relative rotation part 11 and the load connection part 12.
When the electric bicycle or the electric bicycle is used, the tower foundation is assembled on a rear hub or a hub motor shell of the electric bicycle, and in order to improve connection stability, a connecting external thread or a pawl structure can be correspondingly arranged on the outer peripheral surface of one end, deviating from the moment induction deformation part 13, of the load connecting part 12, or the load connecting part 12 is locked with a structural body or a spline through a screw so as to realize the assembly connection of the tower foundation main body 1. The flywheel fixing shell 2 is connected with the clamping flywheel, and the load connecting part 12 of the tower foundation main body 1 is connected with the right side of the rear hub or the right flywheel side end cover of the hub motor shell; external force applies torsion to the flywheel fixed shell 2 through clamping the flywheel, the flywheel fixed shell 2 transmits the torsion to the relative rotating part 11 of the tower foundation main body 1, the torque is applied to the load connecting part 12 of the tower foundation main body 1 through the torque induction deformation part 13 of the tower foundation main body 1, in the process, the torque induction deformation part 13 of the tower foundation main body 1 can generate deformation corresponding to the torsion, so that the torque induction soft magnetic deformation unit arranged on the inner peripheral surface of the torque induction deformation part 13 also generates corresponding circumferential deformation, at the moment, the relative area of the induction coil 6 and the torque induction soft magnetic deformation unit also changes, thereby changing the magnetic field of the induction coil 6, changing the induced electromotive force of the induction coil 6, and the signal processor 5 takes out an electric signal of the change caused by the circumferential torque of the induction coil 6, which is a torque signal corresponding to the circumferential force.
The tower foundation torque sensing device provided by the embodiment of the invention integrates the torque sensor into the tower foundation, and is then installed on the rear wheel hub or the end cover part of the hub motor through the load connecting part 12 of the tower foundation main body 1, so that the structure is simple, the conventional center shaft accessory of the bicycle can be met, the cost can be reduced, the requirement on the riding comfort of the torque can be met, and in addition, the whole bicycle can be ensured to have good succinct aesthetic degree.
In this embodiment, the soft magnetic material may be an iron-silicon alloy, a soft magnetic ferrite, or the like.
Further, in the present embodiment, the torsion-induced soft magnetic deformation unit is arranged in a plurality of ways.
For example, the torque force induction soft magnetic deformation unit and the torque force induction deformation portion 13 are integrally formed, or the torque force induction soft magnetic deformation unit is attached to the inner peripheral surface of the torque force induction deformation portion 13 by an attaching process. The integrated forming mode includes casting, painting, electrostatic powder painting, fluidized bed powder painting, electroplating, chemical plating, dacromet treatment, etc.; the bonding process mainly refers to bonding through bonding glue.
Further, as a more specific structural form of the torsion-induced soft magnetic deformation unit, referring to fig. 4, the torsion-induced soft magnetic deformation unit may be a soft magnetic sheet 10, and a plurality of through holes are formed in the soft magnetic sheet 10; further, the plurality of through holes are distributed at intervals along the radial peripheral surface of the tower base body 1, the through holes may be, but not limited to, oblong through holes, and the through holes may include at least two circles, and the at least two circles of through holes are arranged at intervals in a direction in which the first end of the tower base body 1 extends toward the second end of the tower base body 1; preferably, in the adjacent two circles of oblong through holes, the extending direction of the oblong through hole of the first circle is not identical to the extending direction of the oblong through hole of the second circle.
Alternatively, as another more specific structural form of the torque force induction soft magnetic deformation unit, referring to fig. 5, in the tower foundation torque sensor according to the first embodiment of the present invention, the overall structural schematic diagram of the tower foundation main body 1 of another more specific structural form of the torque force induction soft magnetic deformation unit may be further provided, where the torque force induction soft magnetic deformation unit may be further provided with diagonal ring 101 distributed around the radial circumferential direction of the torque force induction deformation portion 13, and preferably, the diagonal ring 101 may be provided with at least two rings, illustrated as two rings, along the extending direction of the tower foundation main body 1; further, in the case where the number of the indented rings 101 is two or more, it is preferable that the extending direction of the indented ring 101 of the first ring and the extending direction of the indented ring 101 of the second ring be not identical in two adjacent indented rings 101, and the indented rings 101 be integrally formed on the inner peripheral surface of the torque-sensitive deformation portion 13.
In addition, referring to fig. 3 and 4, in the present embodiment, the tower base torque sensing device further includes a pawl 112 and a spring structure 113; a pawl groove 111 is provided on the outer peripheral surface of the foundation main body 1, and a pawl 112 is fixed to the inside of the pawl groove 111 by a spring structure 113. Specifically, the spring structure 113 may be a wire spring, which is fitted around the outer circumferential surface of the foundation main body 1 and presses the pawl 112, and is mounted in the spring structure mounting groove 1131. Of course, the spring structure 113 may be a spring body, or the like, having one end connected to the pawl 112 and the other end connected to the groove wall surface of the pawl groove 111 of the foundation main body 1.
It should be noted that, since the pawl 112 and the spring structure 113 are mounted on the relative rotation portion 11, the relative rotation portion 11 of the foundation main body 1 can be driven to rotate in one direction by the pawl groove 111, the pawl 112, and the spring structure 113 relative to the flywheel housing 2, and in order to avoid the loosening phenomenon after the mounting of the spring structure 113, as shown in fig. 4, a spring structure mounting groove 1131 for mounting the spring structure 113 may be formed on the outer peripheral surface of the first end of the foundation main body 1.
Alternatively, the click 112 and the spring structure 113 described above may be attached to the load connecting portion 12, so that the attachment between the tower base main body 1 and the rear hub or in-wheel motor housing of the electric bicycle or electric power assisted vehicle is achieved by this structure.
Of course, the connection between the above-described relative rotation portion 11 and the flywheel fixed housing 2, and the attachment between the above-described foundation main body 1 and the rear hub or hub motor housing of the electric bicycle or electric power assisted vehicle may be achieved by a screw connection method or the like, respectively.
In addition, for better installation of the induction coil 6, in the present embodiment, referring to fig. 3 and 4, the tower base torque sensing device further includes a sleeve bracket 4; the sleeve bracket 4 is arranged in the moment induction deformation part 13, and the induction coil 6 is sleeved on the sleeve bracket 4.
Further, in order to better accommodate the signal processor 5 and ensure stability of signal transmission, referring to fig. 3 and 4, in the present embodiment, the signal processor 5 is mounted on a signal processor board, which is fixed on the sleeve bracket 4, further, a signal processing board mounting groove 42 for mounting the signal processing board may be provided on the outer circumferential surface of the sleeve bracket 4, so that the signal processing board is prevented from moving along the sleeve bracket 4 while saving space to ensure stability of signal transmission; in addition, a via hole through which the signal output line 15 passes may be further formed in the wall surface of the groove body of the signal processing board mounting groove 42.
In addition, referring to fig. 3 and 4, in the present embodiment, an electromagnetic shield 14 for shielding electromagnetic interference of the outside to the induction coil 6 is further installed inside the tower base body 1, so that electromagnetic interference of the outside to the induction coil 6 can be shielded by the electromagnetic shield 14 and metal eddy current loss of metal around the induction coil 6 can be reduced; specifically, the electromagnetic shield 14 may be mounted inside the induction coil 6; alternatively, a part of the electromagnetic shield 14 is positioned inside the induction coil 6, and an end portion of one end of the electromagnetic shield 14 is extended to the outside of the induction coil 6 and covers an end face of one end of the induction coil 6; alternatively, a part of the electromagnetic shield 14 is positioned inside the induction coil 6, and the end portions of both ends of the electromagnetic shield 14 are respectively extended to the outside of the induction coil 6 and cover the end surfaces of both ends of the induction coil 6; alternatively, the electromagnetic shield 14 may be otherwise mounted inside the tower body 1.
Further, in order to secure the mounting stability of the induction coil 6, referring to fig. 3 and 4, in the present embodiment, a coil fixing groove 41 for winding and fixing the induction coil 6 is provided on the outer circumferential surface of the sleeve holder 4.
In addition, referring to fig. 3 and 4, in the present embodiment, the tower foundation torque sensor device further includes a tower foundation locking bracket body 3.
One end of the tower foundation locking support body 3 is connected with the relative rotation part 11, and the inner peripheral surface of the flywheel fixing shell 2 and the outer peripheral surface of the tower foundation locking support body 3, and the inner peripheral surface of the flywheel fixing shell 2 and the outer peripheral surface of the moment induction deformation part 13 are respectively connected in a rolling way through balls 8.
Specifically, ball receiving grooves 9 may be formed on the outer circumferential surface of the moment-sensing deformation portion 13 and the outer circumferential surface of the tower base locking bracket body 3, respectively, for mounting the balls 8.
In order to ensure the stability of the tower foundation torque sensor, a first bearing 71 is installed inside one end of the tower foundation locking bracket body 3, and a second bearing 72 for connecting with the shaft roller is installed inside the load connecting portion 12.
Example two
The embodiment provides an electric bicycle, which comprises the tower base torque sensing device in the first embodiment.
In the above-described embodiment, the specific configuration of the present invention has been described, but the present invention is not limited thereto.
For example, in the above embodiment, the tower foundation torque sensor device further comprises a sleeve bracket 4; the sleeve bracket 4 is mounted inside the torque induction deformation part 13, and the induction coil 6 is sleeved on the sleeve bracket 4, but the torque induction deformation part is not limited to the above, and the induction coil 6 can be directly placed inside the tower foundation main body 1 instead of the sleeve bracket 4, so that the sensing function can be realized, but according to the structure in the specific embodiment, the sleeve bracket 4 is arranged, thereby being beneficial to forming the structure inside the tower foundation main body 1 into a uniform whole and improving the integrity of the tower foundation torque sensing device.
In the above-described embodiment, the signal processor 5 is mounted on the signal processor board and the signal processor board is fixed to the sleeve holder 4, but the present invention is not limited thereto, and the signal processor 5 may be directly disposed inside the tower foundation main body 1 without providing the sleeve holder 4, and the sensing function may be similarly realized, but the sensing stability is better by providing the structure according to the base embodiment.
In the above-described embodiment, the electromagnetic shield 14 for shielding electromagnetic interference from the outside to the induction coil 6 is further mounted in the tower base main body 1, but the present invention is not limited thereto, and the tower base torque measurement and sensing function can be similarly realized without providing the electromagnetic shield 14, but according to the configuration of the embodiment, the electromagnetic shield 14 is provided, and the electromagnetic shield 14 can shield electromagnetic interference from the outside to the induction coil 6, and at the same time, reduce metal eddy current loss of the metal surrounding the induction coil 6.
In the above-described embodiment, the coil fixing groove 41 for winding and fixing the induction coil 6 is provided on the outer peripheral surface of the sleeve holder 4, but the present invention is not limited to this, and the coil fixing groove 41 may not be provided, and the tower foundation torque measurement sensing function may be realized similarly, but the coil fixing groove 41 is provided according to the configuration of the embodiment, so that the induction coil 6 can be wound and fixed inside the coil fixing groove 41, and on the one hand, the induction coil 6 can be protected, and on the other hand, the mounting stability of the induction coil 6 can be enhanced.
In addition, in the above specific embodiment, the tower foundation torque sensor device further comprises a tower foundation locking bracket body 3; one end of the tower foundation locking support body 3 is connected with the relative rotation part 11, and the inner peripheral surface of the flywheel fixing shell 2 and the outer peripheral surface of the tower foundation locking support body 3, and the inner peripheral surface of the flywheel fixing shell 2 and the outer peripheral surface of the moment induction deformation part 13 are respectively connected in a rolling way through balls 8.
However, the present invention is not limited thereto, and the rotation of the flywheel housing 2 may be achieved by a matched structure of the protrusions and the grooves as the sliding blocks and the sliding grooves without providing the balls 8, so long as the rotatable function of the flywheel housing 2 is achieved, but according to the structure of the embodiment, the balls 8 are provided, thereby reducing the friction force generated during the rotation of the flywheel housing 2 and saving labor; in addition, the tower foundation locking bracket body 3 may not be provided, and the tower foundation main body 1 and the flywheel fixing housing 2 may be directly fixed.
The tower base torque sensor device and the electric bicycle according to the present invention can be combined with the various configurations of the above-described embodiments, and the above-described effects can be similarly exhibited.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (5)
1. The tower foundation torque sensing device is characterized by comprising a flywheel fixed shell, a tower foundation main body, a signal processor and an induction coil;
the flywheel fixing shell is sleeved outside the tower foundation main body;
the tower foundation main body comprises a relative rotation part, a moment induction deformation part and a load connection part, wherein the relative rotation part, the moment induction deformation part and the load connection part are sequentially connected from one end of the tower foundation main body to the other end of the tower foundation main body; a torque induction soft magnetic deformation unit is arranged on the inner peripheral surface of the torque induction deformation part;
the induction coil is arranged in the tower foundation main body, and the positions of the induction coil and the torque force induction soft magnetic deformation unit correspond to each other;
the signal processor is electrically connected with the induction coil;
the tower foundation torque sensing device further comprises a pawl and a spring structure body; a pawl groove is formed in the outer peripheral surface of the tower foundation main body, and the pawl is fixed in the pawl groove through the spring structure body;
the tower foundation torque sensing device further comprises a sleeve bracket; the sleeve bracket is arranged in the moment induction deformation part, and the induction coil is sleeved on the sleeve bracket;
the torque force induction soft magnetic deformation unit and the torque force induction deformation part are integrally formed, or are attached to the inner peripheral surface of the torque force induction deformation part through an attaching process;
the torsion induction soft magnetic deformation unit is a soft magnetic sheet, and a plurality of through holes are formed in the soft magnetic sheet; or the torsion induction soft magnetic deformation unit is an inclined toothed ring distributed around the radial circumferential direction of the moment induction deformation part.
2. The tower foundation torque sensor device of claim 1, wherein said signal processor is mounted on a signal processor board, and said signal processor board is secured to said sleeve mount.
3. The tower footing torque sensor apparatus of claim 1 wherein an electromagnetic shield for shielding electromagnetic interference from the outside to the induction coil is also mounted within the tower footing body.
4. The foundation torque sensor device of claim 1, further comprising a foundation locking bracket body;
one end of the tower foundation locking support body is connected with the relative rotating part, and the inner peripheral surface of the flywheel fixing shell and the outer peripheral surface of the tower foundation locking support body, and the inner peripheral surface of the flywheel fixing shell and the outer peripheral surface of the moment induction deformation part are respectively connected in a rolling way through balls.
5. An electric bicycle comprising the tower base torque sensing device of any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910135049.0A CN109649569B (en) | 2019-02-20 | 2019-02-20 | Tower foundation torque sensing device and electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910135049.0A CN109649569B (en) | 2019-02-20 | 2019-02-20 | Tower foundation torque sensing device and electric bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109649569A CN109649569A (en) | 2019-04-19 |
| CN109649569B true CN109649569B (en) | 2024-03-29 |
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| CN201910135049.0A Active CN109649569B (en) | 2019-02-20 | 2019-02-20 | Tower foundation torque sensing device and electric bicycle |
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| CN209852517U (en) * | 2019-05-05 | 2019-12-27 | 昆山攀登电子科技有限公司 | Dynamic torque sensing device of electric bicycle rotary flying structure |
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| CN105015692A (en) * | 2014-04-22 | 2015-11-04 | 苏州八方电机科技有限公司 | Torque-speed sensing device for center shaft of electric bicycle |
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| CN209650471U (en) * | 2019-02-20 | 2019-11-19 | 康献兵 | Column foot torque sensing device and electric bicycle |
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| CN202940699U (en) * | 2012-11-22 | 2013-05-15 | 中物精密电器（上海）有限公司 | Torque motor assembly |
| CN105015692A (en) * | 2014-04-22 | 2015-11-04 | 苏州八方电机科技有限公司 | Torque-speed sensing device for center shaft of electric bicycle |
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