CN205539040U - Detect magnetic inductor of speed of a motor vehicle - Google Patents
Detect magnetic inductor of speed of a motor vehicle Download PDFInfo
- Publication number
- CN205539040U CN205539040U CN201620276343.5U CN201620276343U CN205539040U CN 205539040 U CN205539040 U CN 205539040U CN 201620276343 U CN201620276343 U CN 201620276343U CN 205539040 U CN205539040 U CN 205539040U
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- magnetic
- detection speed
- connecting portion
- magnetic conduction
- axletree
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Abstract
The utility model discloses a detect magnetic inductor of speed of a motor vehicle, including casing, magnet, sensor circuit and magnetic conduction object, the casing includes installation department and connecting portion, the installation department has a cavity, magnet and sensor circuit are installed in the cavity, connecting portion can be dismantled with the axletree and be connected, the magnetic conduction object is installed on the axletree and can be followed turning wheels, the magnetic conduction object is discoid, a plurality of through -holes have evenly been laid to circumference on the magnetic conduction object, the shape size of through -hole satisfies the wheel when rotatory, and the magnetic conduction object makes the linkage of magnet change. The utility model is not only simple in structure, and magnetic conduction object direct mount does not receive the vehicle operation environmental impact, the measurement accuracy accuracy on the axletree.
Description
Technical field
This utility model relates to technical field of vehicle detection, is specifically related to bicycle, motorcycle, scooter etc.
The Bus-Speed Monitoring field of vehicle, more particularly relates to a kind of magnetic inductor detecting speed.
Background technology
Bicycle, motorcycle and scooter etc. are popular trip instruments, but at present, exclusively for it
The device of the detection speed of design is actually rare, has employing photoelectric sensor to realize bicycle and survey in prior art
Speed, the photosensor part of this device is difficult to debugging, the most vibrated, the interference of dust, dirt, makes
Requiring height by condition, circuit is more complicated, and cost is high.To this end, Publication No. CN2252977 is practical new
Type patent discloses a kind of bicycle, motorcycle tests the speed, log arrangement, by magnetic induction pulses formula sensor and
Character display is constituted, and described sensor is by Magnet, induction coil, H plastic support, plastic cards, bar
Shape soft iron is constituted, and bar shaped soft iron is bonded on plastic cards, and plastic cards is stuck on vehicle wheel spoke, and Magnet leads to
Cross H plastic support to be fixed on front fork.
But this structure is complicated, and the running environment of vehicle is complicated, and magnetic material is arranged on the spoke of wheel
On, during bicycle runs, it being easily subject to the collision of barrier in environment, fragile material easily damages
Bad, and then affect the detection of its magnetic flux, affect the performance of its normal work, therefore measure the magnetic induction of speed
Device protective value is poor.
In view of this, special proposition this utility model.
Utility model content
One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.
To this end, a purpose of the present utility model is to propose a kind of simple in construction, detection, accurately and performance is steady
The magnetic inductor of fixed detection speed.
According to the magnetic inductor of detection speed of the present utility model, including housing, magnet, sensor circuit and lead
Magnetic object；Described housing includes that installation portion and connecting portion, described installation portion have a chamber, described magnet,
It is arranged in described chamber with sensor circuit；Described connecting portion removably connects with axletree, described magnetic conduction thing
Body is arranged on axletree and can be with vehicle wheel rotation；Described magnetic conduction object is discoid, on described magnetic conduction object
Circumference is uniformly laid with multiple through hole, when the shape size of described through hole meets wheel rotation, described magnet
Magnetic linkage changes.Described sensor circuit detects described magnetic linkage, and output detections result.
According to the magnetic inductor of detection speed of the present utility model, magnet is utilized to provide the magnetic field fixed, magnetic conduction
Object is in rotation process, and the magnetic linkage of magnetic conduction object changes, and causes magnetic flux to rise or fall, sensing
Circuit can detect this changing value, and is transferred to mobile phone or instrument after the conversion of these changing value data.Not only
Simple in construction, and magnetic conduction object is directly installed on axletree, is not affected by vehicle running environment, measures
Precision is accurate.
It addition, can also have following additional skill according to the magnetic inductor of this utility model above-mentioned detection speed
Art feature:
According to an example of the present utility model, described sensor circuit includes chip circuit, sensing device and electricity
Source, described chip circuit is connected with described sensing device signal, described power supply respectively with described chip circuit and
Power supply is connected.
According to an example of the present utility model, described sensing device includes Hall components and parts.
According to an example of the present utility model, described connecting portion is provided with an installing hole, described installing hole
Size shape is suitable with axletree, and described axletree is provided with screw thread and nut away from wheel one end, described
Frame fork and described connecting portion are arranged on described axletree by described screw thread and nut.
According to an example of the present utility model, described connecting portion is arranged between frame fork and magnetic conduction object.
According to an example of the present utility model, described connecting portion is arranged on described axletree away from the one of wheel
End, frame fork is between described connecting portion and magnetic conduction object.
According to an example of the present utility model, described magnetic conduction object is disk brake.
According to an example of the present utility model, the material of described disk brake is rustless steel.
According to an example of the present utility model, described magnet is permanent magnet.
According to an example of the present utility model, the material of described housing is metal or plastics.
Additional aspect of the present utility model and advantage will part be given in the following description, and part will be from following
Description in become obvious, or recognized by practice of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation () of the housing of the magnetic inductor of this utility model detection speed；
Fig. 2 is the structural representation (two) of the housing of the magnetic inductor of this utility model detection speed；
Fig. 3 is the structural representation (three) of the housing of the magnetic inductor of this utility model detection speed；
Fig. 4 is a kind of signal installing installation site of the housing of the magnetic inductor of this utility model detection speed
Figure (one)；
Fig. 5 is a kind of signal installing installation site of the housing of the magnetic inductor of this utility model detection speed
Figure (two)；
Fig. 6 is a kind of signal installing installation site of the housing of the magnetic inductor of this utility model detection speed
Figure (three)；
Fig. 7 is that the another kind of of housing of the magnetic inductor of this utility model detection speed installs showing of installation site
It is intended to；
Fig. 8 is the sensor circuit structural representation of the magnetic inductor of this utility model detection speed；
Fig. 9 is the fundamental diagram of the magnetic inductor of this utility model detection speed.
In figure: 100, housing；101, installation portion；102, connecting portion；110, chamber；120, installing hole；
200, magnetic conduction object；300, through hole；400, sensor circuit；401, chip circuit；402, induction apparatus
Part；500, axletree；600, wheel；700, frame fork；
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, carries out clear, complete description to the technical scheme in embodiment, below implements
Example is used for illustrating this utility model, but is not limited to scope of the present utility model.
In conjunction with the magnetic inductor of the detection speed shown in Fig. 1 and Fig. 8, including housing 100, magnetic conduction object 200,
Magnet (not shown) and sensor circuit 400；In the present embodiment, the material of housing 100 is metal, magnet
For permanent magnet, magnetic conduction object 200 is Bicycle dished brake dish, naturally it is also possible to be separately provided with magnetic conduction object,
It is made to keep consistent with vehicle wheel rotation.Disk brake in the present embodiment is ventilated type disk brake, it is preferred that dish
The material of dish of stopping is rustless steel.Disk brake is uniformly distributed axial distribution and has multiple through hole 300, this through hole
Shape size meets wheel 600 when rotating, the size of through hole 300 more than the sectional dimension of housing installation portion,
Magnetic conduction object 200 makes the magnetic linkage of magnet change, and i.e. can ensure that faradism when disk brake once rotates
Drive test obtains different magnetic flux.
The magnetic inductor of the detection speed according to the present embodiment, utilizes magnet to provide the magnetic field fixed, magnetic conduction thing
Body 200 is in rotation process, and the magnetic linkage of magnetic conduction object 200 changes, and causes magnetic flux to rise or fall,
Sensor circuit 400 can detect this changing value, and is transferred to mobile phone or instrument after the conversion of these changing value data
Table.It is not only simple in structure, and magnetic conduction object 200 is directly installed on axletree, do not run ring by vehicle
Border affects, and certainty of measurement is accurate.
Shown in Fig. 1 and Fig. 2, in the present embodiment, housing includes installation portion 101 and connecting portion 102,
Installation portion 101 has a chamber 110, and the size of chamber 110 meets the device that can contain sensor circuit,
Magnet and sensor circuit 400 are installed in chamber 110；Connecting portion 102 is connected with axletree 500, this reality
Executing in example, connecting portion 102 is a tabular band orifice.
Preferably, connecting portion 102 can be in the following way with the connection of car body: arranges on connecting portion 102
Having an installing hole 120, installing hole 120 size shape is suitable with axletree 500, and axletree is away from wheel
600 one end are provided with screw thread and nut, and frame fork and connecting portion 102 are arranged on axletree by screw thread and nut
On.The mounting means of cycle wheel is all through back vent by wheel shaft, is fixed on back vent by nut, this
The magnetic inductor of the detection speed in embodiment need not any accessory, it is only necessary to by the connecting portion of housing 100
The through hole of 102 passes bicycle shaft, is sandwiched in the middle of wheel shaft 500 and the frame fork 700 of bicycle, then
By the nut check of wheel 600, so while locking wheel 600, the magnetic inductor of detection speed is also
It is firmly secured on car body.
As shown in Figure 4,5, 6, connecting portion 102 is arranged between frame fork 700 and magnetic conduction object 200,
Make overall structure more stable.Certainly, as shown in Figure 7, it is also possible to connecting portion 102 is arranged on wheel
Axle is away from one end of wheel 600, and frame fork is between connecting portion 102 and magnetic conduction object 200.
As shown in Figure 8, in the present embodiment, sensor circuit 400 includes chip circuit 401, sensing device
402 and power supply 403, it is preferred that sensing device 402 is Hall components and parts.Chip circuit 401 and induction apparatus
Part 402 signal connects, and power supply 403 is connected with chip circuit 401 and power supply respectively.
The operation principle of magnetic inductor and process below in conjunction with detection speed of the present utility model are made further
Explanation.
Magnet provides fixing magnetic field, when disk brake is near the magnetic inductor of detection speed, due to disk brake
Permeability magnetic material, so magnetic linkage can be gathered near disk brake, causes magnetic flux to rise, and Hall components and parts are permissible
The exact value of the magnetic flux after magnetic linkage change detected, after being changed into voltage signal, pass to chip circuit 401
Analog voltage gather port, the analog voltage collected such as fruit chip rises, and just meaning Hall detects
, also imply that disk brake is near installation portion 101；Whereas if at disk brake away from detection speed
During magnetic inductor, magnetic linkage no longer can be gathered near disk brake, causes magnetic flux to decline, by the number of chip
According to process, when each disk brake is near the magnetic inductor of detection speed, chip signal output is low level, dish
Stop dish away from detection speed magnetic inductor time chip signal output be high level, it is assumed that disk brake has 8 not
Rust steel part, 8 throughhole portions, then wheel selects a circle, and chip will export 8 low level signals；
By calculating the interval time of each low level trailing edge, it is possible to calculate wheel and select the time used by a circle,
In the case of learning wheel circumference, the time that speed=wheel girth/wheel rotates a circle.
As it is shown in figure 9, the dash area of top represents at permeability magnetic material near installation portion 101, magnetic flux now
Amount there occurs change, and chip circuit 401, Hall components and parts, by detecting the change of magnetic flux, calculate speed.
The method calculating speed is:
Mode 1: often circle detects after a stainless steel material or permeability magnetic material, Hall components and parts detect
After having arrived related data, by wired or wirelessly, send a signal to instrument or mobile phone,
Current speed is calculated by the interval time of two signals and the diameter of wheel.
Mode 2: often circle detects after a stainless steel material or permeability magnetic material, Hall components and parts detect
After having arrived related data, by the girth of wheel with calculate current speed the interval time of signal, by having
Line or wirelessly, according to fixing communications protocol, is sent to instrument or mobile phone by speed information,
To demonstrate current speed information.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " laterally ",
" length ", " width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ",
" level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ",
" circumferential " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, be only for
Be easy to describe this utility model and simplifying describe rather than instruction or the device of hint indication or element necessary
There is specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to of the present utility model
Limit.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint
Relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", "
Two " feature can express or implicitly include one or more this feature.Of the present utility model
In description, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " even
Connect ", the term such as " fixing " should be interpreted broadly, connect for example, it may be fixing, it is also possible to be detachable
Connect, or integral；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is possible to
To be indirectly connected to by intermediary, can be connection or the interaction of two elements of two element internals
Relation.For the ordinary skill in the art, can understand that above-mentioned term is at this as the case may be
Concrete meaning in utility model.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ",
The description of " concrete example " or " some examples " etc. means to combine the concrete spy of this embodiment or example description
Levy, structure, material or feature are contained at least one embodiment of the present utility model or example.At this
In description, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example.And
And, the specific features of description, structure, material or feature can be with one or more embodiments in office or examples
In combine in an appropriate manner.Additionally, in the case of the most conflicting, those skilled in the art is permissible
The feature of the different embodiments described in this specification or example and different embodiment or example is combined
And combination.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-mentioned reality
It is exemplary for executing example, it is impossible to be interpreted as that, to restriction of the present utility model, those of ordinary skill in the art exists
Above-described embodiment can be changed in the range of this utility model, revise, replace and modification.
Claims (10)
1. the magnetic inductor detecting speed, it is characterised in that include housing, magnet, sensor circuit and
Magnetic conduction object；Described housing includes that installation portion and connecting portion, described installation portion have a chamber, described magnet,
It is arranged in described chamber with sensor circuit；Described connecting portion removably connects with axletree, described magnetic conduction thing
Body is arranged on described axletree；Described magnetic conduction object is discoid, circumference uniformly cloth on described magnetic conduction object
Being provided with multiple through hole, described through hole rotates with wheel and cuts the magnetic linkage of described magnet.
The magnetic inductor of detection speed the most according to claim 1, it is characterised in that described faradism
Road includes that chip circuit, sensing device and power supply, described chip circuit are connected with described sensing device signal,
Described power supply is connected with described chip circuit and power supply respectively.
The magnetic inductor of detection speed the most according to claim 2, it is characterised in that described induction apparatus
Part includes Hall components and parts.
The magnetic inductor of detection speed the most according to claim 1, it is characterised in that described connecting portion
On be provided with an installing hole, described installing hole size shape is suitable with axletree, and described axletree is away from car
Wheel one end is provided with bolt and nut, and frame fork and described connecting portion are arranged on institute by described bolt and nut
State on axletree.
The magnetic inductor of detection speed the most according to claim 4, it is characterised in that described connecting portion
It is arranged between frame fork and magnetic conduction object.
The magnetic inductor of detection speed the most according to claim 4, it is characterised in that described connecting portion
Being arranged on described axletree one end away from wheel, frame fork is between described connecting portion and magnetic conduction object.
The magnetic inductor of detection speed the most according to claim 1, it is characterised in that described magnetic conduction thing
Body is disk brake.
The magnetic inductor of detection speed the most according to claim 7, it is characterised in that described disk brake
Material be rustless steel.
9. according to the magnetic inductor of the detection speed described in any one of claim 1-8, it is characterised in that institute
Stating magnet is permanent magnet.
10. according to the magnetic inductor of the detection speed described in any one of claim 1-8, it is characterised in that institute
The material stating housing is metal or plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620276343.5U CN205539040U (en) | 2016-04-05 | 2016-04-05 | Detect magnetic inductor of speed of a motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620276343.5U CN205539040U (en) | 2016-04-05 | 2016-04-05 | Detect magnetic inductor of speed of a motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205539040U true CN205539040U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620276343.5U Active CN205539040U (en) | 2016-04-05 | 2016-04-05 | Detect magnetic inductor of speed of a motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205539040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508229A (en) * | 2018-04-17 | 2018-09-07 | 武汉轻工大学 | Sensor |
-
2016
- 2016-04-05 CN CN201620276343.5U patent/CN205539040U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508229A (en) * | 2018-04-17 | 2018-09-07 | 武汉轻工大学 | Sensor |
| CN108508229B (en) * | 2018-04-17 | 2023-10-27 | 武汉轻工大学 | Sensor for detecting a position of a body |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |