CN109831072A - Electric machine - Google Patents
Electric machine Download PDFInfo
- Publication number
- CN109831072A CN109831072A CN201910130590.2A CN201910130590A CN109831072A CN 109831072 A CN109831072 A CN 109831072A CN 201910130590 A CN201910130590 A CN 201910130590A CN 109831072 A CN109831072 A CN 109831072A
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- Prior art keywords
- encoder
- motor
- wheel hub
- code
- brake
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- 239000004744 fabric Substances 0.000 claims 1
- 230000004323 axial length Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The application relates to the technical field of electric appliances, in particular to a motor. According to the motor that this application embodiment provided, its motor body, stopper and encoder that sets gradually, the stopper is located including the cover the epaxial wheel hub of pivot of motor, the encoder includes lid behind code wheel, electron body and the encoder, the lid is located behind the encoder motor one end, the code wheel is fixed wheel hub orientation one side of lid behind the encoder. The hub structure of the code wheel of design encoder and stopper combines together, has shortened motor complete machine structure size, reduces the motor shaft that produces because of axial length overlength and shakes, promotes motor wholeness ability, and the encoder code wheel is fixed on wheel hub in addition, can provide bigger code wheel installation area, and the encoder code wheel can carry out more subdivisions because of size structure changes, and then improves the encoder precision.
Description
Technical field
This application involves technical field of electric appliances more particularly to a kind of motors.
Background technique
Traditional electric machine structure is as shown in Figure 1, motor includes the electricity that shaft 1 ', electronics iron core 2 ', rotor core 3 ' form
Machine ontology further includes having brake and encoder, and wherein brake includes the brake stator 4 ' set gradually, armature 5 ', rubs
Pad 6 ' and wheel hub 7 ', wherein encoder includes encoder end cap 8 ', code-disc 9 ', electronic body 10 ' and encoder rear cover 11 '.
In the shaft 1 ' that the code-disc 9 ' of encoder is fixed on motor by modes such as screws in the motor, this kind of mounting means is limited
The size of encoder code disc 9 ', code device code-disc 9 ' cause encoder accuracy because the limitation of dimensional structure can not carry out more subdivision
It is not high, and electric machine structure shown in FIG. 1 causes motor shaft to shake because axial length is too long, reduces motor overall performance；Furthermore
The electronic body 10 ' of encoder shown in FIG. 1 is mounted in encoder rear cover 11 ', in motor operation usually because fever is fast
Temperature increases and causes encoder abnormal；In braking process, it can also cause because generation dust drifts encoder code disc with shaft end
Code-disc be contaminated dropout phenomena such as occur.
Summary of the invention
In order to solve the above-mentioned technical problem, motor complete machine structure size can be shortened to provide one kind, it is whole promotes motor
Body performance solves to influence the technical issues of motor shaft shakes because axial length is too long, and this application provides following technical solutions.
The embodiment of the present application provides a kind of motor.According to motor provided by the embodiments of the present application comprising set gradually
Motor body, brake and encoder, the brake includes the wheel hub being sheathed in the shaft of the motor, the coding
Device includes code-disc, electronic body and encoder rear cover, and the encoder rear cover is located at described motor one end, and the code-disc is fixed on
The wheel hub is towards the side of the encoder rear cover.
Further, the side of the wheel hub towards the encoder rear cover is formed with the boss coaxial with the wheel hub,
The code-disc is fixed on the boss towards the side of the encoder rear cover.
Further, the encoder further includes the encoder-side being arranged between the wheel hub and the encoder rear cover
Lid, the encoder end cap offer the through-hole coaxial with the shaft, and the diameter of the through-hole is greater than the diameter of the code-disc.
Further, an end of the shaft is between the wheel hub and the encoder end cap.
Further, the side of the electronic body and encoder rear cover towards the wheel hub is fitted and connected.
Further, the brake further includes the brake stator, armature and friction plate set gradually along axial direction, described
Friction plate is arranged between the armature and the wheel hub.
Further, the brake further includes brake casing, and the first annular groove is offered on the periphery of the boss,
The second annular groove of the first annular groove described in face is offered on the brake casing.
Further, first annular groove and second annular groove are correspondingly arranged on multiple groups.
Further, the side of encoder end cap towards the wheel hub is provided with felt.
Further, the felt is circular layout along the shaft.
Above-mentioned technical proposal provided by the embodiments of the present application has the advantages that design encoder compared with prior art
The wheel hub structure of code-disc and brake is combined together, and shortens motor complete machine structure size, is reduced due to axial length is too long
The motor shaft of generation shakes, and promotes motor overall performance, furthermore encoder code disc is fixed on wheel hub, can provide bigger code-disc
Mounting area, encoder code disc improve encoder accuracy because dimensional structure variation can be segmented more.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without any creative labor, is also possible to obtain other drawings based on these drawings.
Fig. 1 is motor schematic cross-sectional view in the prior art；
Fig. 2 is the schematic cross-sectional view of motor provided by the embodiments of the present application.
In figure:
1 ', shaft；2 ', stator core；3 ', rotor core；4 ', brake stator；5 ', armature；6 ', friction plate；7 ', it takes turns
Hub；8 ', encoder end cap；9 ', code-disc；10 ', electronic body；11 ', encoder rear cover；1, motor body；101, shaft；102
Stator core；103, rotor core；104, casing；105, bearing；2, brake；201, wheel hub；202, boss；203, brake
Stator；204, armature；205, friction plate；206, brake casing；207, the first annular groove；208, the second annular groove；3, encoder；
301, code-disc；302, electronic body；303, encoder rear cover；304, encoder end cap；305, felt.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
In this application, term " on ", "lower", "inner", " in ", "outside", the orientation of the instructions such as "front", "rear" or position close
System is to be based on the orientation or positional relationship shown in the drawings.These terms are primarily to better describe the application and its implementation
Example, is not intended to limit indicated device, element or component must have particular orientation, or carries out structure with particular orientation
It makes and operates.
Also, above-mentioned part term is other than it can be used to indicate that orientation or positional relationship, it is also possible to for indicating it
His meaning, such as term " on " also are likely used for indicating certain relations of dependence or connection relationship in some cases.For ability
For the those of ordinary skill of domain, the concrete meaning of these terms in this application can be understood as the case may be.
In addition, term " setting ", " connection ", " fixation " shall be understood in a broad sense.For example, " connection " may be a fixed connection,
It is detachably connected or monolithic construction；It can be mechanical connection, or electrical connection；It can be directly connected, or pass through centre
Medium is indirectly connected, or is two connections internal between device, element or component.For ordinary skill
For personnel, the concrete meaning of above-mentioned term in this application can be understood as the case may be.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
Fig. 1 gives the schematic cross-sectional view of motor in the prior art, and Fig. 2 gives provided by the embodiments of the present application
The schematic cross-sectional view of motor.
As shown in Figure 1, motor in the prior art include shaft 1 ', electronics iron core 2 ', rotor core 3 ' form motor
Ontology further includes having brake and encoder, and wherein brake includes the brake stator 4 ' set gradually, armature 5 ', friction
Piece 6 ' and wheel hub 7 ', wherein encoder includes encoder end cap 8 ', code-disc 9 ', electronic body 10 ' and encoder rear cover 11 '.?
The code-disc 9 ' of encoder is fixed in the shaft 1 ' of motor by modes such as screws in the motor, this kind of mounting means limits volume
The size of code device code-disc 9 ', code device code-disc 9 ' cause encoder accuracy not because the limitation of dimensional structure can not carry out more subdivision
Height, and electric machine structure shown in FIG. 1 causes motor shaft to shake because axial length is too long, reduces motor overall performance.In order to
The technical problem is solved, as shown in Fig. 2, the embodiment of the present application provides a kind of motor comprising the motor body set gradually
1, brake 2 and encoder 3, brake 2 include the wheel hub 201 being sheathed in the shaft 101 of motor, and encoder 3 includes code-disc
301, electronic body 302 and encoder rear cover 303, encoder rear cover 303 are located at motor one end, and code-disc 301 is fixed on wheel hub 201
Towards the side of encoder rear cover 303.In electric machine structure provided by the embodiments of the present application the code-disc 301 of encoder 3 because with braking
The wheel hub 201 of device 2 combines, and the outer diameter of the code-disc 301 of encoder 3 can be promoted compared with original structure, marks thin on code-disc 301
Point precision can be done more relatively.The specific combination of code-disc 301 and wheel hub 201 includes but is not limited to lead to code-disc 301
Cross 201 surface of wheel hub that gluing is connected to brake 2.Compared to electric machine structure shown in FIG. 1, in structure shown in Fig. 2, motor
Shaft 101 install wheel hub 201 after, without providing installation space for code-disc 301, therefore reduce the axial dimension of shaft,
To reduce because in rotary course because axis it is too long/axoplasm amount unevenly generate axis vibration, improve motor performance, furthermore code-disc
301 are fitted and connected on wheel hub 201, can be close to brake, further shorten electricity the position integral forward lead of encoder 3
The axial dimension of machine.
The electronic body 10 ' of encoder shown in FIG. 1 is mounted on the sky between encoder rear cover 11 ' and encoder end cap 8 '
Between in, heat dissipation effect is poor, in motor operation usually because the fast temperature of fever increases and causes encoder abnormal.In order to solve this
Technical problem, as shown in Fig. 2, electronic body 302 and the side of encoder rear cover 303 towards wheel hub 201 are fitted and connected.Encoder
3 electronic body 302 is combined with encoder rear cover 303, improves heat dissipation area, so that heat radiation ability, promotes coding
The service life of device 3.Corresponding, the electronic body 302 of encoder 3 is covered on encoder rear cover 303, and dimensioned area can be with
That designs is bigger, and comparatively the electronic body 302 of encoder 3 can do more performance circuits, in conjunction with the precision of code-disc 301
It is promoted and the whole overall precision for promoting encoder 3, the promotion of 3 overall precision of encoder can promote the overall precision of motor.
In some embodiments, as shown in Fig. 2, the side of wheel hub 201 towards encoder rear cover 303 is formed with and wheel hub
201 coaxial boss 202, code-disc 301 are fixed on boss 202 towards the side of encoder rear cover 303.Encoder 3 further includes setting
The encoder end cap 304 between wheel hub 201 and encoder rear cover 303 is set, encoder end cap 304 offers same with shaft 101
The through-hole of axis, the diameter of through-hole are greater than the diameter of code-disc 301.The design of through-hole is so that code-disc 301 can be with face electronic body
302, encoder end cap 304 can play certain barrier action between encoder 3 and brake 2.
In some embodiments, an end of shaft 101 is between wheel hub 201 and encoder end cap 304.With Fig. 1
Electric machine structure compare, the axial dimension of shaft 101 can be obviously shortened.
In electric machine structure as shown in Figure 1, brake in braking process, can also by the rubbing action for friction plate 6 '
A certain amount of dust is generated, dust can drift encoder code disc 9 ' with shaft end, and it is contaminated so as to cause code-disc 9 ', lead to signal
Phenomena such as loss, occurs.Likewise, as shown in Fig. 2, brake 2 also includes along axial direction in electric machine structure provided by the present application
Brake stator 203, armature 204 and the friction plate 205 set gradually, the setting of friction plate 205 armature 204 and wheel hub 201 it
Between, in order to avoid the dust pollution question of motor shown in Fig. 1, brake 2 provided by the present application further includes brake casing 206,
The first annular groove 207 is offered on the periphery of boss 202, and the second of the first annular groove of face 207 is offered on brake casing 206
Annular groove 208.The edge for the wheel hub 201 being arranged in shaft 101 is provided with the first annular groove 207, and opposite position is opened on shell
There is same second annular groove 208.Two annular grooves form airtight construction.Concrete operating principle is, when brake 2, which releases, to be braked,
Wheel hub 201 is rotated with shaft 101, because the stroke at the first annular groove 207 and the second annular groove 208 is more than around, at the same speed when rotation
It can produce lower scroll air-flow, it is opposite that relative vacuum structure is formed between two strokes, it is produced by the friction plate 205 of brake 2
Raw dust is limited by airtight construction, and the dust for generating brake is detained under eddy airstream, can not pollute encoder 3
Code-disc 301.In some embodiments, it is preferred that the first annular groove 207 and the second annular groove 208 are correspondingly arranged on multiple groups, such as Fig. 2 institute
Show, the first annular groove 207 and the second annular groove 208 are correspondingly arranged on two groups, can promote the barrier action of lower scroll air-flow.
In some embodiments, the side of encoder end cap 304 towards wheel hub 201 is provided with felt 305.Micro loss powder
Dirt can be by 305 Electrostatic Absorption of felt, a possibility that further decreasing dust loss.Preferably, felt 305 is along 101 annular of shaft
Arrangement, the i.e. shape of felt 305 are using the axle center of shaft 101 as the annulus in the center of circle, and closed annulus can further be promoted quiet
The effect of Electro Sorb has prevented Electrostatic Absorption blind area, and more preferably, felt 305 is provided with multiple, multiple settings of felts 305
For multiple annulus shapes of the concyclic heart, multiple tracks Electrostatic Absorption defence line can be formed, as shown in Fig. 2, the quantity of felt 305 is set as
Two.
Section Example is described in a progressive manner in this specification, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The above is only a specific embodiment of the invention, make skilled artisans appreciate that or realizing of the invention.It is right
A variety of modifications of these embodiments will be apparent to one skilled in the art, general original as defined herein
Reason can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it originally will not be limited
It is formed on the embodiments shown herein, and is to fit to consistent with applied principle herein and features of novelty widest
Range.
Claims (10)
1. a kind of motor, including the motor body (1), brake (2) and encoder (3) set gradually, which is characterized in that described
Brake (2) includes the wheel hub (201) being sheathed in the shaft (101) of the motor, and the encoder (3) includes code-disc
(301), electronic body (302) and encoder rear cover (303), the encoder rear cover (303) is located at described motor one end, described
Code-disc (301) is fixed on the wheel hub (201) towards the side of the encoder rear cover (303).
2. motor according to claim 1, which is characterized in that the wheel hub (201) is towards the encoder rear cover (303)
Side be formed with the boss (202) coaxial with the wheel hub (201), the code-disc (301) is fixed on the boss (202) court
To the side of the encoder rear cover (303).
3. motor according to claim 2, which is characterized in that the encoder (3) further includes being arranged in the wheel hub
(201) the encoder end cap (304) between the encoder rear cover (303), the encoder end cap (304) offers and institute
The coaxial through-hole of shaft (101) is stated, the diameter of the through-hole is greater than the diameter of the code-disc (301).
4. motor according to claim 4, which is characterized in that an end of the shaft (101) is located at the wheel hub
(201) between the encoder end cap (304).
5. motor according to claim 1, which is characterized in that the electronic body (302) and the encoder rear cover
(303) it is fitted and connected towards the side of the wheel hub (201).
6. motor according to claim 1, which is characterized in that the brake (2) further includes setting gradually along axial direction
Brake stator (203), armature (204) and friction plate (205), the friction plate (205) are arranged in the armature (204) and institute
It states between wheel hub (201).
7. motor according to claim 2, which is characterized in that the brake (2) further includes brake casing (206),
It is offered the first annular groove (207) on the periphery of the boss (202), offers face institute on the brake casing (206)
State the second annular groove (208) of the first annular groove (207).
8. motor according to claim 7, which is characterized in that first annular groove (207) and second annular groove (208)
It is correspondingly arranged on multiple groups.
9. motor according to claim 3, which is characterized in that the encoder end cap (304) is towards the wheel hub (201)
Side be provided with felt (305).
10. motor according to claim 9, which is characterized in that the felt (305) is along the annular cloth of the shaft (101)
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910130590.2A CN109831072B (en) | 2019-02-21 | 2019-02-21 | Motor with a motor housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910130590.2A CN109831072B (en) | 2019-02-21 | 2019-02-21 | Motor with a motor housing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109831072A true CN109831072A (en) | 2019-05-31 |
| CN109831072B CN109831072B (en) | 2024-04-05 |
Family
ID=66864040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910130590.2A Active CN109831072B (en) | 2019-02-21 | 2019-02-21 | Motor with a motor housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109831072B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994888A (en) * | 2019-11-29 | 2020-04-10 | 珠海格力电器股份有限公司 | Rear end cover and split type brake motor |
| CN111030357A (en) * | 2019-12-04 | 2020-04-17 | 珠海格力电器股份有限公司 | Motor brake structure and servo motor |
| CN116021546A (en) * | 2022-08-17 | 2023-04-28 | 深圳市大族机器人有限公司 | Joint module and robot |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090212728A1 (en) * | 2008-02-21 | 2009-08-27 | Yamaha Hatsudoki Kabushiki Kaisha | Wheel driving apparatus and electric vehicle including the same |
| CN106627744A (en) * | 2016-12-09 | 2017-05-10 | 深圳大学 | Independent steering system of electric vehicle |
| CN107013615A (en) * | 2017-04-24 | 2017-08-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Electromagnetic brake and the motor with it |
| CN207534828U (en) * | 2017-12-07 | 2018-06-26 | 中国科学院沈阳自动化研究所 | Cooperation joint of robot with force sensing function |
| CN209562338U (en) * | 2019-02-21 | 2019-10-29 | 珠海格力电器股份有限公司 | Electric machine |
-
2019
- 2019-02-21 CN CN201910130590.2A patent/CN109831072B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090212728A1 (en) * | 2008-02-21 | 2009-08-27 | Yamaha Hatsudoki Kabushiki Kaisha | Wheel driving apparatus and electric vehicle including the same |
| CN106627744A (en) * | 2016-12-09 | 2017-05-10 | 深圳大学 | Independent steering system of electric vehicle |
| CN107013615A (en) * | 2017-04-24 | 2017-08-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Electromagnetic brake and the motor with it |
| CN207534828U (en) * | 2017-12-07 | 2018-06-26 | 中国科学院沈阳自动化研究所 | Cooperation joint of robot with force sensing function |
| CN209562338U (en) * | 2019-02-21 | 2019-10-29 | 珠海格力电器股份有限公司 | Electric machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994888A (en) * | 2019-11-29 | 2020-04-10 | 珠海格力电器股份有限公司 | Rear end cover and split type brake motor |
| CN111030357A (en) * | 2019-12-04 | 2020-04-17 | 珠海格力电器股份有限公司 | Motor brake structure and servo motor |
| CN116021546A (en) * | 2022-08-17 | 2023-04-28 | 深圳市大族机器人有限公司 | Joint module and robot |
| CN116021546B (en) * | 2022-08-17 | 2024-05-31 | 深圳市大族机器人有限公司 | Joint module and robot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109831072B (en) | 2024-04-05 |
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