CN208060547U - A kind of motor speed encoder - Google Patents
A kind of motor speed encoder Download PDFInfo
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- CN208060547U CN208060547U CN201721705252.XU CN201721705252U CN208060547U CN 208060547 U CN208060547 U CN 208060547U CN 201721705252 U CN201721705252 U CN 201721705252U CN 208060547 U CN208060547 U CN 208060547U
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- upper cavity
- arrangement
- grooves
- outer cover
- motor speed
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Abstract
A kind of motor speed encoder coordinates with motor, including encoder body, magnetic conduction gear, the encoder body, magnetic conduction gear, machine shaft coaxial arrangement；The encoder body includes outer cover body, cover board, the outer cover body includes the upper cavity of the upward opening formed by shell, downwardly open lower chamber, the otic placode being arranged on hull outside wall, be provided with mounting hole encoder being fixed on electric machine casing on the otic placode, the cover plate lid is closed on upper cavity；It is set in machine shaft and is located in lower chamber with the magnetic conduction gear that machine shaft rotates, the lateral wall of the outer cover body below otic placode is linked in electric machine casing and is sealed by interference fit；The downside of otic placode is provided with reject chute, and the reject chute is located at the surface of interference fit.The utility model has the advantage of：Outer cover body, using being interference fitted, is removed simple with electric machine casing in the case of the tight fit to ensure that outer cover body and electric machine casing.
Description
Technical field
The utility model is related to encoder fields, and in particular to a kind of motor speed encoder.
Background technology
In new-energy automobile industry, national policy continued support, market Rapid Expansion, new-energy automobile generally uses electronic
Engine is substituted, electric motor starting is generally used.Traditional electric machine built-in hall sensing chip solves measurement motor rotating speed and side
To for automobile industry and inconvenient, needed when motor speed measurement system jam needs repairing by entire motor
It removes, and opens internal maintenance, this is very troublesome and does not meet the market demand for automobile industry.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, to provide a kind of motor speed encoder,
Using with motor module installation and low-cost design, only need to change encoder i.e. when motor speed measurement system jam
It can.
To achieve the above object, the utility model uses following technical scheme：
A kind of motor speed encoder coordinates with motor, including encoder body, magnetic conduction gear, the encoder sheet
Body, magnetic conduction gear, machine shaft coaxial arrangement；The encoder body includes outer cover body, cover board, and the outer cover body includes
By upper cavity, the downwardly open lower chamber of the upward opening that shell is formed, the otic placode being arranged on hull outside wall, the ear
Be provided with mounting hole encoder being fixed on electric machine casing on plate, the cover plate lid is closed on upper cavity；It is set in motor
Shaft and with machine shaft rotate magnetic conduction gear be located in lower chamber, the lateral wall of the outer cover body below otic placode passes through
Interference fit is linked in electric machine casing and seals；The downside of otic placode is provided with reject chute, and the reject chute is matched positioned at interference
Surface at conjunction.
Optimization, be provided in the upper cavity circuit board and respectively with the magnet of circuit board electrical connection, Hall sensor,
The side wall of wire harness assembly, the upper cavity is provided with outlet hole, and the wire harness assembly is connect across outlet hole with external devices.
Optimization, the cover board is sealed with outer cover body injection molding.
Optimization, for the interference fit using protrusion is arranged on outer cover body, the protrusion is multiple, is evenly distributed on
On the lateral wall of lower chamber in electric machine casing to be sleeved on.
Optimization, the lower surface that the lower chamber is contacted with electric machine casing is additionally provided with o-ring groove.
Optimization, the outer cover body is plastic parts, after placing the circuit board, magnet, Hall sensor, wire harness assembly
Upper cavity in be provided with sealing resin.
Optimization, the shell for forming upper cavity and lower chamber is cylindrical structure, and outer cover body is divided into upper cavity under
The partition board of cavity is prominent into upper cavity to form protruding portion, and opposite position forms groove body, the groove body and motor in lower chamber
The terminal end shape of shaft matches, and multiple supports are evenly arranged between the upper cavity madial wall and protruding portion and around protruding portion
The riser of circuit board, adjacent two risers and upper cavity form arrangement of grooves, the Hall sensor be arranged in arrangement of grooves and
Close to protruding portion, the magnet is arranged in arrangement of grooves and between Hall sensor and the madial wall of upper cavity.
Optimization, include two arrangement of grooves for being provided with Hall sensor and magnet in the upper cavity, and respectively first
Arrangement of grooves and the second arrangement of grooves are provided with the first Hall sensor and the first magnet, the second arrangement of grooves in first arrangement of grooves
It is inside provided with the second Hall sensor and the second magnet, the spacing etc. between the center line and second step slot of first arrangement of grooves
In the sum of the width that nT+T/4, wherein T are each facewidth and tooth socket in magnetic conduction gear, n is integer.
The beneficial effects of the utility model are：
(1) purpose of the motor speed encoder is how to go to realize quick after motor speed coder module
Installation and dismounting, this motor encoder are used with electric machine casing using outer cover body and are interference fitted, and electricity is inserted into outer cover body
When in the mounting groove of casing body, the interference fit of outer cover body can cut waste material, and waste material is during excision, with motor casing
The relative motion of body, waste material enter in reject chute, so that do not have on the otic placode contact surface of electric machine casing and outer cover body
Waste material, interference fit also ensure the tight fit of outer cover body and electric machine casing.It replaces motor speed encoder and is unclamping peace
It is directly extracted from electric machine casing after screw in dress hole, substantially increases replacement efficiency.
(2) using after sealing resin in upper cavity, cover board and outer cover body are sealed using injection molding, thus sealing effect
It is good, it is ensured that the service life of the motor speed encoder after module.
(3) in the present invention, by the cooperation of gear and Hall sensor and magnet in arrangement of grooves, it can be achieved that right
The speed and rotation direction of motor are detected, due to causing when the tooth of gear passes through the first arrangement of grooves, the second arrangement of grooves with slot
Changes of magnetic field it is different, therefore the first Hall sensor and the second Hall sensor can accurately detect the number of teeth or slot of gear
Number, due to the first arrangement of grooves center line to the second arrangement of grooves center line spacing be equal to gear the facewidth half, therefore it can be with
The two paths of signals that phase difference output is 90 °, when motor rotates forward, the first Hall sensor institute in the first arrangement of grooves is collected
Collected second inductive signal of the second Hall sensor being ahead of in the second arrangement of grooves institute is worked as motor by the first inductive signal
When reversion, collected first inductive signal of the first Hall sensor institute will lag behind the second Hall sensor institute collected the
Two inductive signals are transmitted to by Hall sensor in two arrangement of grooves and the collected signal of magnet in circuit board, to sentence
Break and rotating and reverse for motor.
Description of the drawings
Fig. 1 is the stereogram of the utility model motor speed encoder.
Fig. 2 is the exploded isometric figure of the utility model motor speed encoder.
Fig. 3 is the upward view of outer cover body.
Fig. 4 is the sectional view of A-A in Fig. 3.
Fig. 5 is the enlarged drawing of the parts I in Fig. 3.
Fig. 6 is the vertical view of outer cover body.
Fig. 7 is the sectional view of E-E in Fig. 6.
Fig. 8 is the enlarged drawing of the parts III in Fig. 6.
Fig. 9 is the front view that motor speed encoder is mounted on motor.
The meaning of label symbol is as follows in figure：
1- encoder body 11- outer cover bodies
111- upper cavity 1111- riser 1112- outlet hole 112- lower chambers
1121- protrusion 113- otic placode 1131- reject chute 114- mounting holes
115- o-ring groove 116- protruding portion 12- magnet 13- Hall sensors
14- circuit board 15- wire harness assembly 16- cover board 17- external devices
2- magnetic conduction gear 3- the first arrangement of grooves the second arrangement of grooves of 4-
31- Hall sensor lay down location 32- magnet lay down location 33- circuit board lay down locations
5- machine shaft 6- electric machine casings
Specific implementation mode
Below by specific embodiment, the utility model is described in further detail.
As shown in figs 1-9, a kind of motor speed encoder coordinates with motor, which includes coding
Device ontology 1, magnetic conduction gear 2, encoder body 1, magnetic conduction gear 2, machine shaft coaxial arrangement.Encoder body 1 includes shell
Ontology 11, cover board 16, outer cover body 11 include the upper cavity 111 of the upward opening formed by shell, lower chamber 112, in shell
The otic placode 113 being arranged on lateral wall is provided with the mounting hole 114 being fixed on encoder on electric machine casing 6 on otic placode 113, covers
The lid of plate 16 closes on upper cavity 111；It is set in machine shaft 5 and is located at lower chamber with the magnetic conduction gear 2 that machine shaft 5 rotates
In 112, the lateral wall positioned at the outer cover body 11 of 113 lower section of otic placode is linked in electric machine casing 6 and is sealed by interference fit.
Reject chute 1131 is provided on the downside of otic placode 113, reject chute 1131 is located at the surface of interference fit, in the embodiment
In, for interference fit using setting protrusion 1121 on outer cover body 11, protrusion 1121 is multiple, is evenly distributed on motor to be sleeved on
On the lateral wall of the lower chamber 112 of shell 6.
Be provided in upper cavity 111 circuit board 14 and the magnet being electrically connected respectively with circuit board 14 12, Hall sensor 13,
The side wall of wire harness assembly 15, upper cavity 111 is provided with outlet hole 1112, and wire harness assembly 15 passes through outlet hole 1112 and external devices
17 connections.
The lower surface that lower chamber 112 is contacted with electric machine casing 6 is additionally provided with setting o-ring groove 115.
The shell for forming upper cavity 111 and lower chamber 112 is cylindrical structure, divides housing 135 into upper cavity and lower chamber
Partition board is prominent into upper cavity 111 to form protruding portion 116, and opposite position forms groove body, the groove body and electricity in lower chamber 112
The terminal end shape of machine shaft matches, and the position opposite with protruding portion 116 of cover board 16 is also equipped with agrees with 116 size of protruding portion
Via 161.It is evenly arranged with multiple support circuit boards between 111 madial wall of upper cavity and protruding portion 116 and around protruding portion 116
14 riser 1111.Two adjacent risers 1111 form arrangement of grooves with upper cavity 111, and Hall sensor 13 is arranged in arrangement of grooves
It is interior and close to protruding portion 116, magnet 12 be arranged in arrangement of grooves and positioned at the madial wall of Hall sensor 13 and upper cavity 111 it
Between.
Include two arrangement of grooves for being provided with Hall sensor 113 and magnet 112, respectively the first cloth in upper cavity 111
Slot 3 and the second arrangement of grooves 3 are set, is provided with the first Hall sensor and the first magnet in the first arrangement of grooves 3, in the second arrangement of grooves 4
It is provided with the second Hall sensor and the second magnet, the spacing between the first Hall sensor and the second Hall sensor is equal to nT
+ T/4, wherein T are the sum of the width of each facewidth and tooth socket in magnetic conduction gear 2, and n is integer, as shown in fig. 6, the first Hall passes
Angle between sensor and the second Hall sensor is α, according in the first Hall sensor and the second Hall sensor to shell
The distance of the heart can be asked as above-mentioned spacing.
As shown in figure 8, the first Hall sensor lay down location 31 in the first arrangement of grooves 3 is located in arrangement of grooves and close to prominent
Portion 116, the first magnet lay down location 32 between Hall sensor lay down location 31 and the madial wall of upper cavity 111, put by circuit board
It sets place 33 and is located at 1111 top of riser.
Outer cover body 11 is plastic parts, after placing circuit board 14, magnet 12, Hall sensor 113, wire harness assembly 115
It is provided with sealing resin in upper cavity 111.Cover board 16 is sealed with the injection molding of outer cover body 11.
It these are only the preferred embodiment that the utility model is created, be not intended to limit the utility model creation, it is all
All any modification, equivalent and improvement etc., should be included in this made by within the spirit and principle created in the utility model
Within the protection domain that utility model is created.
Claims (8)
1. a kind of motor speed encoder coordinates with motor, which is characterized in that including encoder body (1), magnetic conduction gear
(2), the encoder body (1), magnetic conduction gear (2), machine shaft (5) coaxial arrangement；The encoder body (1) includes outer
Shell ontology (11), cover board (16), the outer cover body (11) include the upward opening formed from shell upper cavity (111), to
The lower chamber (112) of under shed, the otic placode being arranged on hull outside wall (113) are provided with and will be encoded on the otic placode (113)
Device is fixed on the mounting hole (114) on electric machine casing (6), and cover board (16) lid closes on upper cavity (111)；It is set in motor
Shaft (5) and the magnetic conduction gear (2) rotated with machine shaft (5) is located in lower chamber (112), below otic placode (113)
The lateral wall of outer cover body (11) is linked in electric machine casing (6) and is sealed by interference fit；The downside of otic placode (113) is set
It is equipped with reject chute (1131), the reject chute (1131) is located at the surface of interference fit.
2. a kind of motor speed encoder according to claim 1, which is characterized in that setting in the upper cavity (111)
Magnet (12), Hall sensor (13), the wire harness assembly (15) for having circuit board (14) and being electrically connected respectively with circuit board (14), institute
The side wall for stating upper cavity (111) is provided with outlet hole (1112), and the wire harness assembly (15) passes through outlet hole (1112) and outside
Device (17) connects.
3. a kind of motor speed encoder according to claim 1, which is characterized in that the cover board (16) and outer cover body
(11) injection molding sealing.
4. a kind of motor speed encoder according to claim 1, which is characterized in that the interference fit uses shell sheet
It is arranged on body (11) raised (1121), the protrusion (1121) is multiple, is evenly distributed in electric machine casing to be sleeved on (6)
On the lateral wall of lower chamber (112).
5. a kind of motor speed encoder according to claim 1, which is characterized in that the lower chamber (112) and motor
The lower surface of shell (6) contact is additionally provided with o-ring groove (115).
6. a kind of motor speed encoder according to claim 2, which is characterized in that the outer cover body (11) is plastic cement
Part is placed and is set in the upper cavity (111) after the circuit board (14), magnet (12), Hall sensor (13), wire harness assembly (15)
It is equipped with sealing resin.
7. a kind of motor speed encoder according to claim 6, which is characterized in that form upper cavity (111) and cavity of resorption
The shell of body (112) is cylindrical structure, by outer cover body (11) be divided into the partition board of upper cavity (111) and lower chamber (112) to
Prominent in upper cavity (111) to form protruding portion (116), opposite position forms groove body in lower chamber (112), the groove body with
The terminal end shape of machine shaft (5) matches, and between upper cavity (111) madial wall and protruding portion (116) and surrounds protruding portion
(116) riser (1111) of multiple support circuit boards (14), adjacent two risers (1111) and upper cavity are evenly arranged with
(111) arrangement of grooves is formed, the Hall sensor (13) is arranged in arrangement of grooves and close to protruding portion (116), the magnet
(12) it is arranged in arrangement of grooves and between Hall sensor (13) and the madial wall of upper cavity (111).
8. a kind of motor speed encoder according to claim 7, which is characterized in that include in the upper cavity (111)
Two arrangement of grooves for being provided with Hall sensor (13) and magnet (12), respectively the first arrangement of grooves (3) and the second arrangement of grooves
(4), it is provided with the first Hall sensor and the first magnet in first arrangement of grooves (3), the is provided in the second arrangement of grooves (4)
Two Hall sensors and the second magnet, the spacing between the center line and second step slot of first arrangement of grooves (3) are equal to nT+T/
4, wherein T are the sum of the width of each facewidth and tooth socket in magnetic conduction gear (2), and n is integer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721705252.XU CN208060547U (en) | 2017-12-08 | 2017-12-08 | A kind of motor speed encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721705252.XU CN208060547U (en) | 2017-12-08 | 2017-12-08 | A kind of motor speed encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208060547U true CN208060547U (en) | 2018-11-06 |
Family
ID=63996709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721705252.XU Active CN208060547U (en) | 2017-12-08 | 2017-12-08 | A kind of motor speed encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208060547U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275045A (en) * | 2019-06-12 | 2019-09-24 | 杭州智缤科技有限公司 | A kind of devices and methods therefor detecting rotating cycle and direction |
-
2017
- 2017-12-08 CN CN201721705252.XU patent/CN208060547U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275045A (en) * | 2019-06-12 | 2019-09-24 | 杭州智缤科技有限公司 | A kind of devices and methods therefor detecting rotating cycle and direction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190826 Address after: 201108 4, 5, No. 118, 2129 Lane, Lianhua South Road, Minhang District, Shanghai Patentee after: Shanghai Jingchuan Electronic Technology Co., Ltd. Address before: 237421 Yongtai Road, Pingqiao High-tech Industrial Concentration Area, Yuan District, Luan City, Anhui Province Patentee before: Anhui Voboff Electron Science and Technology Co., Ltd. |