CN208559683U - A kind of sensor unit suitable for electric vehicle - Google Patents
A kind of sensor unit suitable for electric vehicle Download PDFInfo
- Publication number
- CN208559683U CN208559683U CN201821082374.2U CN201821082374U CN208559683U CN 208559683 U CN208559683 U CN 208559683U CN 201821082374 U CN201821082374 U CN 201821082374U CN 208559683 U CN208559683 U CN 208559683U
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- chip
- foil gauge
- middle axial
- axial strain
- sensor unit
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Abstract
The utility model discloses a kind of sensor unit suitable for electric vehicle, including driving shaft, middle axial strain seat, foil gauge and IC chip, middle axial strain cover for seat is on driving shaft, foil gauge is set at the test position of middle axial strain seat, IC chip is set to the installed position of the middle axial strain seat, and IC chip is used to receive the strain value of foil gauge measurement and forms voltage signal output control motor operations.Sensor unit provided by the utility model suitable for electric vehicle, overall structure is simple, collects the foil gauge of simple physical deformation detection and simply acquires IC chip, the power-assisted effect ridden daily to electric bicycle can be completed, installation is simple；Meanwhile it is synchronous with foil gauge mechanical deformation using IC chip acquisition, it is quick on the draw, in time, can also realize timely reset, recycle power-assisted effect；In addition, its is versatile, material is simple, at low cost.
Description
Technical field
The utility model relates to torque sensor technical field, in particular to a kind of sensor suitable for electric vehicle is total
At.
Background technique
With the rapid development of society, the energy is increasingly deficient to be increasingly becoming the main bottle that today's society grows continuously and fast
Neck accelerates people to the research steps of the new energy vehicles, energy conservation and environmental protection, economy and durability, time saving and energy saving, light and fast
Electric bicycle application and give birth to.
The torque sensor that existing electric bicycle uses has diversified form, and relatively common is mounted in chain
It is inside wheel or be using sprocket wheel tension or to be using mechanical displacement or be cumbersome fixed form, these
Often there are some defects in torque sensor, structure is complicated for the torque sensor of cumbersome fixed form, installation trouble；In sprocket wheel
Portion or be to react insensitive and non-timely using the torque sensor of sprocket wheel tension, so that people is ridden time-consuming and laborious；Benefit
Difficulty, at high cost, price are manufactured with the torque sensor of mechanical displacement.
Therefore, how to provide it is a kind of be quick on the draw, electric bicycle moment sensor easy for installation, be art technology
Personnel's technical problem urgently to be resolved.
Utility model content
The purpose of the utility model is to provide a kind of sensor units suitable for electric vehicle, and structure is simple, easy for installation,
At low cost, simultaneous reactions are sensitive, facilitate the daily efficiency of riding ridden and meet people of people.
In order to solve the above technical problems, the utility model provides a kind of sensor unit suitable for electric vehicle, including master
Moving axis, middle axial strain seat, foil gauge and IC chip, on the driving shaft, the foil gauge is set the middle axial strain cover for seat
It being placed at the test position of the middle axial strain seat, the IC chip is set to the installed position of the middle axial strain seat, and
The IC chip is used to receive the strain value of the foil gauge measurement and forms voltage signal output control motor operations.
It preferably, further include for the drive bearing by the middle axial strain cover for seat on the driving shaft, the biography
Dynamic bearing is mounted in the annular mounting groove of the driving shaft.
Preferably, the quantity of the drive bearing is 2, and is distributed in the IC chip two sides.
Preferably, the drive bearing is deep groove ball bearing.
Preferably, the quantity of the foil gauge is at least 2, and is distributed in the IC chip two sides.
Preferably, groove is opened up at the test position of the middle axial strain seat, and the foil gauge is installed on the groove
It is interior.
Preferably, the installed position of the middle axial strain seat opens up the concave mounting groove for installing the IC chip.
Sensor unit provided by the utility model suitable for electric vehicle, mainly include driving shaft, middle axial strain seat,
Foil gauge and IC chip, middle axial strain cover for seat is on driving shaft, and foil gauge is set at the test position of middle axial strain seat, IC
Chip is set to the installed position of middle axial strain seat, and IC chip is used to receive the strain value of foil gauge measurement and forms voltage
Signal output control motor operations.Sensor unit provided by the utility model suitable for electric vehicle, overall structure is simple, collection
The foil gauge 3 of simple physical deformation detection and simple acquisition IC chip 5, can be completed ride daily to electric bicycle
Power-assisted effect, installation is simple；Meanwhile it is synchronous with 3 mechanical deformation of foil gauge using the acquisition of IC chip 5, it is quick on the draw, in time,
It can also realize timely reset, recycle power-assisted effect；In addition, its is versatile, material is simple, at low cost.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is a kind of overall structure diagram of specific embodiment provided by the utility model.
Wherein, in Fig. 1:
Driving shaft -1, middle axial strain seat -2, foil gauge -3, drive bearing -4, IC chip -5.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to FIG. 1, Fig. 1 is a kind of overall structure diagram of specific embodiment provided by the utility model.
In a kind of specific embodiment provided by the utility model, the sensor unit suitable for electric vehicle is mainly wrapped
Driving shaft 1, middle axial strain seat 2, foil gauge 3 and IC chip 5 are included, middle axial strain seat 2 is sleeved on driving shaft 1, and foil gauge 3 is arranged
At the test position of middle axial strain seat 2, IC chip 5 is set to the installed position of middle axial strain seat 2, and IC chip 5 is used for
It receives the strain value that foil gauge 3 measures and forms voltage signal output control motor operations.
Wherein, foil gauge 3 is pasted on the measuring point of middle axial strain seat 2, and the preferred drive bearing 4 in the position of measuring point is easy stress
The position that deformation occurs；Driving shaft 1 is mounted in middle axial strain seat 2 by drive bearing 4；IC chip 5 is placed in middle axial strain
In seat 2, IC chip 5 is used to measure the variation size of bilateral or unilateral 3 deformation of foil gauge, and then converts measuring point strain value, shape
At voltage output signal, motor running is controlled.
Specifically, people carry out under normal riding condition, to the pedal of electric bicycle in actual ride
Apply external force, be driven pedal with the chain on dynamic bearing, formed move ahead effect, when pedal driving shaft 1 by
Under the action of extraneous pedal force, miniature deformation occurs, and due to the effect of 4 pressure of drive bearing transmitting, at 2 liang of middle axial strain seat
It is strained on the foil gauge 3 of side measuring point, deformation or one deform therewith simultaneously on both sides strain side 3, at this point, IC chip
5 measure the variation of the deformation of foil gauge, and deformation digital quantity is converted to measurement strain value and then forms analog voltage signal, defeated
The controller of electric bicycle is arrived out, and controller controls motor, realizes power-assisted to electric bicycle.The utility model mentions
The sensor unit suitable for electric vehicle supplied, overall structure is simple, collects foil gauge 3 and the letter of simple physical deformation detection
Single acquisition IC chip 5, can be completed the power-assisted effect ridden daily to electric bicycle, and installation is simple；Meanwhile using IC core
The acquisition of piece 5 is synchronous with 3 mechanical deformation of foil gauge, is quick on the draw, in time, can also realize timely reset, recycles power-assisted effect；Separately
Outside, versatile, material is simple, at low cost.
In order to optimize the sensitiveer advantage of sensor unit in above-described embodiment suitable for electric vehicle, sensor is total
At further including the drive bearing 4 for being sleeved on middle axial strain seat 2 on driving shaft 1, drive bearing 4 is mounted on driving shaft 1
In annular mounting groove；Drive bearing 4 is deep groove ball bearing.Middle axial strain seat 2 is set on driving shaft 1 by drive bearing 4, is passed
Dynamic bearing 4 plays the role of a transmitting ambient pressure, by base bearing 1 since the deformation power that the pedal force of receiving generates is transmitted to
On foil gauge 3, this design can guarantee that foil gauge 3 can rapidly receive the deformation of the generation of base bearing 1, and then itself occurs
Deformation keeps reaction sensitiveer, since there are certain gaps between foil gauge 3 and base bearing 1, so above-mentioned design optimization
This gap bring defect, meanwhile, drive bearing 4 can also play the buffering when receiving 1 deformation of base bearing is excessive of foil gauge 3
Effect, protection foil gauge 3 damage due to excessive by deformation power, extension foil gauge 3 service life.
Further, the quantity of drive bearing 4 is 2, and is distributed in 5 two sides of IC chip；The quantity of foil gauge 3 is at least
2, and it is distributed in 5 two sides of IC chip.In this design, drive bearing 4 can guarantee to make to pass when base bearing 1 is by pedal force
The deformation power that dynamic bearing 4 is subject to is more uniform, and then the deformation power for being transmitted to foil gauge 3 is more uniform, makes the deformation of foil gauge 3
Effect is more uniform, so optimize IC chip 5 control motor frequency and power-assisted size, advanced optimized be quick on the draw and
The effect of power-assisted.
Further, groove is opened up at the test position of middle axial strain seat 2, and foil gauge 3 is installed in groove；Axis is answered
The installed position for becoming seat 2 opens up the concave mounting groove for installing IC chip 5.5 installation groove of foil gauge 3 and IC chip
Design ensure that the stability that foil gauge 3 and IC chip 5 are installed, after prolonged power-assisted operation, foil gauge 3 with
And IC chip 5 is still able to maintain sensitive power-assisted effect, meanwhile, groove design can protect foil gauge 3 and IC chip 5, extend
The service life of foil gauge 3 and IC chip 5.
In conclusion the sensor unit provided by the present embodiment suitable for electric vehicle mainly includes driving shaft, axis
Seat, foil gauge and IC chip are strained, for middle axial strain cover for seat on driving shaft, foil gauge is set to the test position of middle axial strain seat
Place is set, IC chip is set to the installed position of the middle axial strain seat, and IC chip is used to receive the strain of foil gauge measurement
It is worth and forms voltage signal output control motor operations.Sensor unit provided by the utility model suitable for electric vehicle, always
Body structure is simple, collects the foil gauge 3 of simple physical deformation detection and simply acquires IC chip 5, can be completed to electronic
The daily power-assisted effect ridden of bicycle, installation are simple；Meanwhile it is synchronous with 3 mechanical deformation of foil gauge using the acquisition of IC chip 5,
It is quick on the draw, in time, can also realize timely reset, recycle power-assisted effect；In addition, its is versatile, material is simple, cost
It is low.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (7)
1. a kind of sensor unit suitable for electric vehicle, which is characterized in that including driving shaft (1), middle axial strain seat (2), answer
Become piece (3) and IC chip (5), the middle axial strain seat (2) are sleeved on the driving shaft (1), the foil gauge (3) is set to
At the test position of the middle axial strain seat (2), the IC chip (5) is set to the installation site of the middle axial strain seat (2)
Place, and the IC chip (5) is used to receive the strain value of the foil gauge (3) measurement and forms voltage signal output control motor
Work.
2. sensor unit according to claim 1, which is characterized in that further include being used for the middle axial strain seat (2)
The drive bearing (4) being sleeved on the driving shaft (1), the drive bearing (4) are mounted on the annular peace of the driving shaft (1)
In tankage.
3. sensor unit according to claim 2, which is characterized in that the quantity of the drive bearing (4) is 2, and
It is distributed in the IC chip (5) two sides.
4. sensor unit according to claim 3, which is characterized in that the drive bearing (4) is deep groove ball bearing.
5. sensor unit according to claim 3, which is characterized in that the quantity of the foil gauge (3) is at least 2,
And it is distributed in the IC chip (5) two sides.
6. sensor unit according to claim 1, which is characterized in that at the test position of the middle axial strain seat (2)
Groove is opened up, and the foil gauge (3) is installed in the groove.
7. sensor unit according to claim 6, which is characterized in that the installed position of the middle axial strain seat (2)
Open up the concave mounting groove for installing the IC chip (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821082374.2U CN208559683U (en) | 2018-07-09 | 2018-07-09 | A kind of sensor unit suitable for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821082374.2U CN208559683U (en) | 2018-07-09 | 2018-07-09 | A kind of sensor unit suitable for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208559683U true CN208559683U (en) | 2019-03-01 |
Family
ID=65491950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821082374.2U Expired - Fee Related CN208559683U (en) | 2018-07-09 | 2018-07-09 | A kind of sensor unit suitable for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208559683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717371A (en) * | 2020-05-29 | 2020-09-29 | 四川航天燎原科技有限公司 | High-load low-friction gap-eliminating type aircraft steering engine |
-
2018
- 2018-07-09 CN CN201821082374.2U patent/CN208559683U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717371A (en) * | 2020-05-29 | 2020-09-29 | 四川航天燎原科技有限公司 | High-load low-friction gap-eliminating type aircraft steering engine |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190301 Termination date: 20190709 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |