CN208630790U - A kind of power system of electric automobile, torque-measuring apparatus - Google Patents
A kind of power system of electric automobile, torque-measuring apparatus Download PDFInfo
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- CN208630790U CN208630790U CN201821039580.5U CN201821039580U CN208630790U CN 208630790 U CN208630790 U CN 208630790U CN 201821039580 U CN201821039580 U CN 201821039580U CN 208630790 U CN208630790 U CN 208630790U
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Abstract
The utility model relates to field of automobile parts and components, and in particular to a kind of power system of electric automobile, torque-measuring apparatus.Wherein, torque-measuring apparatus includes: dynamic induction part, is suitable for generating the tach signal and torque signal of axis；Static measurement portion is suitable for acquiring and measures the tach signal and torque signal.Such torque-measuring apparatus, after the tach signal and/or turn signal and torque signal for generating axis；Measure the above-mentioned tach signal of transmitting and/or turn signal and torque signal.
Description
Technical field
The utility model relates to field of automobile parts and components, and in particular to a kind of power system of electric automobile, torque-measuring apparatus.
Background technique
The features such as electric booster bicycle is brisk laborsaving and pollution-free due to its, just increasingly promotes the use in China.Traditional
Electric booster bicycle is mainly adjusted the speed with handle, i.e., the output power of motor is controlled with hand handle, and more and more at present electric
The power of pedaling of foot is converted into corresponding voltage signal output when moped is then mainly ridden people using torque sensor, through electricity
The running power that motor is controlled after machine control circuit board enhanced processing, can greatly save the energy in this way.
The sensor being used in electric booster bicycle on the market at present is mostly hall speed sensor, and this sensor uses
Magnet steel is pasted onto the rotary parts such as axis or flywheel of electric booster bicycle surface, and pacifies on the non-rotatable members such as vehicle frame main shaft
Hall element is filled, when people's tap pedal, axis or flywheel rotation generate the variation current potential for corresponding to torsional moment, and export corresponding
Voltage signal, the output power of i.e. controllable motor after enhanced processing.However in the presence of this kind of electric booster bicycle sensor
State problem:
1, static and dynamic torque cannot be detected, measurement accuracy is poor, and zero start is unable in riding, and rides in level road and descending
It will appear electric boosted excessive in row and battery made to generate unnecessary electric discharge.
2, due to magnet steel and it is not installed at the effective force part of axis, the change in displacement generated by torsion is simultaneously unknown
It is aobvious, it is often obvious in the slow-speed of revolution, and it is then unobvious when high revolving speed, so that the output inaccuracy of induced potential signal, sensing
The job stability and reliability of device are greatly reduced.
Utility model content
A kind of it can not only monitor static torque in order to provide again and can monitor the dynamic torque measuring device of dynamic torque.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of torque-measuring apparatus, comprising:
Dynamic induction part is suitable for generating the tach signal and torque signal of axis；
Static measurement portion is suitable for acquiring and measures the tach signal and torque signal.
Preferably, the dynamic induction part includes: the velocity response unit being arranged on axis；
The velocity response unit includes the multistage magnet ring that set is scheduled on the axis, wherein
When the axis drives the multistage magnet ring rotation, measured by the Hall sensor in the static measurement portion
The axis revolving speed.
Preferably, the Hall sensor uses two, it is suitable for detecting the steering of axis.
Preferably, the dynamic induction part includes: the torque sensing unit being arranged on axis；
The torque sensing unit includes the elastomer that set is scheduled on the axis, is provided at the outer tube wall of elastomer
Magnetic conduction magnetic sheet and a static measurement skeleton are set in the outside of elastomer, and there are gaps；
The static measurement skeleton is relative to being equipped with the detection coil that couples with magnetic conduction magnetic sheet at the inner sidewall of magnetic conduction magnetic sheet；
When the axis is by circumferential twisting resistance, the elastomer generates circumferential deformation to change the magnetic of magnetic conduction magnetic sheet
Property, the detection coil is adapted to detect for the magnetism.
Preferably, the static measurement portion includes: to be connected with the Hall sensor and with the detection coil
Wiring board；
The wiring board is provided with serial communication conversion circuit；I.e.
Tach signal and/or turn signal and torque signal are switched into rs 232 serial interface signal output.
Preferably, being arranged with a shielding case on the static measurement skeleton；
The shielding case is suitable for shielding the extraneous magnetic disturbance for the detection coil and wiring board.
Preferably, the surface of the magnetic conduction magnetic sheet has " eight " font hole portion of two column bilateral symmetry distributions, and
The length direction of each hole portion and the axis angle of the axis are in 30 ° ~ 150 °.
The utility model has the beneficial effects that such torque-measuring apparatus, in tach signal and/or the steering for generating axis
After signal and torque signal；Measure the above-mentioned tach signal of transmitting and/or turn signal and torque signal.
The utility model additionally provides a kind of power system of electric automobile, the technical scheme adopted by the utility model is
A kind of power system of electric automobile, comprising:
Torque-measuring apparatus as described above, and the controller being connected with the torque-measuring apparatus；Wherein
The controller is suitable for the output power according to the tach signal and torque signal control motor.
The utility model has the beneficial effects that such power system of electric automobile, by controller according to the tach signal and
Torque signal controls the output power of motor, is greatly saved the energy.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a kind of a kind of structural perspective of embodiment of torque-measuring apparatus of the utility model.
Fig. 2 is the section and partial enlarged view of the position A-A in Fig. 1.
Axis 1 in figure, Hall sensor 2, multistage magnet ring 3, static measurement skeleton 4, wiring board 5, magnetic conduction magnetic sheet 6, detection
Coil 7, elastomer 8, shielding case 9, wear-resistant sleeve 10, elastomer fixing seat 11, bearing 12, mounting base 13, signal output cable 14.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.On the contrary, the embodiments of the present invention include falling into owning within the scope of the spirit and intension of attached claims
Variation, modification and equivalent.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " axis
To ", " radial direction ", the orientation or positional relationship of the instructions such as " circumferential direction " be to be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have specifically
Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property.In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.In addition, in this reality
With in novel description, unless otherwise indicated, the meaning of " plurality " is two or more.
Embodiment 1
Fig. 1 is a kind of a kind of structural perspective of embodiment of torque-measuring apparatus of the utility model.
Fig. 2 is the section and partial enlarged view of the position A-A in Fig. 1.
The present embodiment 1 provides a kind of torque-measuring apparatus, comprising: dynamic induction part is suitable for generating the revolving speed of axis 1
Signal and torque signal；Static measurement portion is suitable for acquiring and measures tach signal and torque signal.
Such torque-measuring apparatus, after the tach signal and/or turn signal and torque signal for generating axis 1, then
It measures and transmits above-mentioned tach signal and/or turn signal and torque signal.
As depicted in figs. 1 and 2, in the present embodiment, dynamic induction part includes: the velocity response list being arranged on axis 1
Member；Velocity response unit includes the multistage magnet ring 3 that set is scheduled on axis 1, wherein leading to when axis 1 drives multistage magnet ring 3 to rotate
The Hall sensor 2 crossed in static measurement portion measures 1 revolving speed of axis.Wherein, Hall sensor 2 is fixed on wiring board 5
, when the rotation of multistage magnet ring 3, the variation in magnetic field will be caused, so that Hall sensor 2 be promoted to obtain its changes of magnetic field
Data, to be converted to revolving speed.
In the present embodiment, Hall sensor 2 can use two, be suitable for detecting the steering of axis 1.Two Halls pass
Sensor 2 is respectively electrically connected on the wiring board 5 in static measurement portion, under the action of Hall sensor 2 and multistage magnet ring 3, each
Hall sensor 2 can obtain a speed signal, and 2 speed signals accurately measure rotation speed and tell the rotation of axis 1
Direction, by being sent to controller by way of serial communication after the completion of processing.The positive and negative of stress is detected by hall signal
Direction can detect positive, reactive torque size by axis 1 simultaneously, be engaged in the effective and reasonable control for realizing electric booster bicycle
System reaches experience of comfortably riding.
In the present embodiment, dynamic induction part includes: the torque sensing unit being arranged on axis 1；Torque sensing unit
Including covering the elastomer 8 being scheduled on axis 1, magnetic conduction magnetic sheet 6 is provided at the outer tube wall of elastomer 8, which is set
It is scheduled on elastomer 8 and a static measurement skeleton 4 is set in the outside of elastomer 8, and there are gaps；Static measurement bone
Frame 4 is relative to the detection coil 7 coupled with magnetic conduction magnetic sheet 6 is equipped at the inner sidewall of magnetic conduction magnetic sheet 6, in detection coil 7 and magnetic conduction
There are gaps between magnetic sheet 6；When axis 1 is by circumferential twisting resistance, elastomer 8 generates circumferential deformation to change magnetic conduction magnetic sheet 6
Magnetism, detection coil 7 is adapted to detect for magnetism.
In the present embodiment, the two sides of static measurement skeleton 4 herein are bonded with wear-resistant sleeve 10 respectively, and two wear-resistant sleeves
10 respectively set be scheduled on axis 1, the outer snare of one of wear-resistant sleeve 10 has an elastomer fixing seat 11, the elastomer surely
Fixing seat 11 is used to wale elastomer 8, is well fixed on it on axis 1, the outer snare of the elastomer fixing seat 11 has surely
One bearing 12.And equally covering surely on the other end of axis 1 has a bearing 12, cover respectively on the outer ring of two bearings 12 has surely
One mounting base 13, two mounting bases 13 are fixedly connected with the both ends of static measurement skeleton 4 again, that is, occur rotating when axis 1
When, wear-resistant sleeve 10 can rotate with, and sliding friction can be then generated between wear-resistant sleeve 10 and static measurement skeleton 4, mounting base
13 be not in rotation, and static measurement skeleton 4 is not in rotation, and detection coil 7 is not in rotation.
In the present embodiment, static measurement portion includes: with Hall sensor 2 and the wiring board that is connected with detection coil 7
5；The wiring board 5 is equally fixed on static measurement skeleton 4, meanwhile, two Hall sensors 2 are also secured on the wiring board 5,
When axis 1 rotates, wiring board 5 is not in two Hall sensors in rotation, namely fixed assist side 5
2 will not rotate.For water proof and dust proof requirement, three proofings glue is coated on wiring board 5.
In the present embodiment, wiring board 5 is provided with serial communication conversion circuit, by tach signal and/or turn signal
And torque signal switchs to rs 232 serial interface signal output.
In the present embodiment, a shielding case 9 is arranged on static measurement skeleton 4；The shielding case 9 and static measurement skeleton
4 is relatively fixed, and the inner ring of mounting base 13 is protruded into one end of the shielding case 9, makes the side of static measurement skeleton 4 by shielding
Cover 9 is realized with mounting base 13 and is fixed.Shielding case 9 is suitable for shielding the extraneous magnetic disturbance for detection coil 7 and wiring board 5.Shielding
It covers and offers an opening on cover 9, which is located at the Hall sensor 2 at wiring board 5, and such design is convenient for signal output electricity
The placement of cable 14, as shown in Figure 1；The signal output cable is suitable for using four-wire system, and wherein both threads are positive negative power line, and another two
Root serial port communication line.
In the present embodiment, the surface of magnetic conduction magnetic sheet 6 has " eight " font hole portion of two column bilateral symmetry distributions, the hole portion
Setting, deformation quantity of the magnetic conduction magnetic sheet 6 in deformation can be aggravated, to reinforce changes of magnetic field, convenient for accurate detection torque, with
And the axis angle of the length direction of each hole portion and axis 1 is in 30 ° ~ 150 °.Wherein be preferably 30 ° of a column, 150 ° of another column,
Or 60 ° of 45 ° of a column, 135 ° of another column or a column, 120 ° of another column, in these three angles, 30 ° of a column, Ling Yilie
150 ° of deformation quantity is best.
Embodiment 2:
On that basis of example 1, the present embodiment 2 provides a kind of power system of electric automobile, comprising: as described in embodiment 1
Torque-measuring apparatus, and the controller being connected with the torque-measuring apparatus；Wherein controller be suitable for according to tach signal and
The output power of torque signal control motor.
Such power system of electric automobile controls the output work of motor by controller according to tach signal and torque signal
Rate is greatly saved the energy.
To sum up, the utility model has the advantage that
1, non-contact detection is used in the utility model, only needs the torsion of 1 stress of axis that can obtain torque by coil
Signal, therefore it is able to detect static and dynamic torque, existing Hall moment sensor is compared, working performance is more stable can
It leans on.
2, due to being capable of detecting when instantaneous torque, it can be improved the globality of system, it is ensured that realize and have electrical vehicular power
The electric booster bicycle of system zero start and keeps the stabilization of driving performance in riding.
3, the utility model can not only detect the torque signal and speed signal of axis 1 simultaneously, and can detecte
Torque suffered by 1 direction of rotation of axis and opposite direction, to control motor according to torque signals and the size of speed signal
Output power makes the operating mode more closing to reality demand of motor.
4, big by external interference since the output signal of Hall sensor 2 and monitoring coil is all small signal, it is easy to appear
Loss, entanglement and distortion the utility model output signal mode use serial communication, route is simple, convenient and efficient, accuracy is high,
Convenient for remote transmission, it be not confined to the defect that signal wire is short as far as possible or controller will be installed as close as possible to sensor.
5, because each product sensed parameter be it is different, personalized, need before factory to each
Sensing device is all debugged, it is ensured that the consistency and versatility of the product after factory；The utility model includes dynamic induction part
With static measurement portion, two are partially bonded together, so that this sensing device can be to each product before factory
It is debugged；If dynamic induction part and static measurement portion and axis 1 is separately positioned together, torque force device and dynamic induction part
And static measurement portion just needs to vehicle factor to be installed separately, and will result in the difference between vehicle, versatility with it is consistent
Property is with regard to poor.By dynamic induction part and static measurement portion on axis 1, so that this speed moment sensor can be made
For the sale of a whole set of product, consistency and versatility are relatively good.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of the term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (7)
1. a kind of torque-measuring apparatus characterized by comprising
Dynamic induction part is suitable for generating the tach signal and torque signal of axis；The dynamic induction part includes: to be arranged in
Torque sensing unit on axis (1)；
The torque sensing unit includes the elastomer (8) that set is scheduled on the axis (1), at the outer tube wall of elastomer (8)
It is provided with magnetic conduction magnetic sheet (6) and a static measurement skeleton (4) is set in the outside of elastomer (8), and there are gaps；
The static measurement skeleton (4) is relative to being equipped with the detection that couples with magnetic conduction magnetic sheet (6) at the inner sidewall of magnetic conduction magnetic sheet (6)
Coil (7)；
When the axis (1) is by circumferential twisting resistance, the elastomer (8) generates circumferential deformation to change magnetic conduction magnetic sheet (6)
Magnetism, the detection coil (7) is adapted to detect for the magnetism；
Static measurement portion is suitable for acquiring and measures the tach signal and torque signal.
2. torque-measuring apparatus as described in claim 1, which is characterized in that
The dynamic induction part includes: the velocity response unit being arranged on axis (1)；
The velocity response unit includes the multistage magnet ring (3) that set is scheduled on the axis (1), wherein
When the axis (1) drives the multistage magnet ring (3) to rotate, pass through the Hall sensor in the static measurement portion
(2) axis (1) revolving speed is measured.
3. torque-measuring apparatus as claimed in claim 2, which is characterized in that
The Hall sensor (2) uses two, is suitable for detecting the steering of axis (1).
4. torque-measuring apparatus as claimed in claim 3, which is characterized in that
The static measurement portion includes: with the Hall sensor and the wiring board that is connected with the detection coil (7)；
The wiring board is provided with serial communication conversion circuit；I.e.
Tach signal and/or turn signal and torque signal are switched into rs 232 serial interface signal output.
5. torque-measuring apparatus as claimed in claim 4, which is characterized in that
A shielding case (9) are arranged on the static measurement skeleton (4)；
The shielding case (9) is suitable for shielding the extraneous magnetic disturbance for the detection coil (7) and wiring board.
6. torque-measuring apparatus as claimed in claim 5, which is characterized in that
The surface of the magnetic conduction magnetic sheet (6) has " eight " the font hole portion (61) of two column bilateral symmetry distributions, and
The length direction of each hole portion (61) and the axis angle of the axis (1) are in 30 °~150 °.
7. a kind of power system of electric automobile characterized by comprising
Torque-measuring apparatus as claimed in any one of claims 1 to 6, and the controller being connected with the torque-measuring apparatus；Its
In
The controller is suitable for the output power according to the tach signal and torque signal control motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821039580.5U CN208630790U (en) | 2018-07-02 | 2018-07-02 | A kind of power system of electric automobile, torque-measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821039580.5U CN208630790U (en) | 2018-07-02 | 2018-07-02 | A kind of power system of electric automobile, torque-measuring apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN208630790U true CN208630790U (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821039580.5U Active CN208630790U (en) | 2018-07-02 | 2018-07-02 | A kind of power system of electric automobile, torque-measuring apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583768A (en) * | 2018-07-02 | 2018-09-28 | 常州野人电子科技有限公司 | A kind of power system of electric automobile, torque-measuring apparatus and its working method |
| WO2023000539A1 (en) * | 2021-07-22 | 2023-01-26 | 珠海市钧兴机电有限公司 | Torsion sensor for moped scooter |
-
2018
- 2018-07-02 CN CN201821039580.5U patent/CN208630790U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583768A (en) * | 2018-07-02 | 2018-09-28 | 常州野人电子科技有限公司 | A kind of power system of electric automobile, torque-measuring apparatus and its working method |
| WO2023000539A1 (en) * | 2021-07-22 | 2023-01-26 | 珠海市钧兴机电有限公司 | Torsion sensor for moped scooter |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210324 Address after: 213000 No.9, Xinyong Road, Wujin national high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee after: CHANGZHOU TAOCHEN ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: Room 520, 18 Xinya Road, national high tech Industrial Development Zone, Wujin District, Changzhou City, Jiangsu Province 213100 Patentee before: CHANGZHOU YEREN ELECTRONIC TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |