CN206894396U - Permanent magnetism dc micro-motor - Google Patents
Permanent magnetism dc micro-motor Download PDFInfo
- Publication number
- CN206894396U CN206894396U CN201720692866.2U CN201720692866U CN206894396U CN 206894396 U CN206894396 U CN 206894396U CN 201720692866 U CN201720692866 U CN 201720692866U CN 206894396 U CN206894396 U CN 206894396U
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- China
- Prior art keywords
- magnetic shoe
- sleeve
- micro
- permanent magnetism
- motor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005389 magnetism Effects 0.000 title claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 17
- 239000000758 substrate Substances 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a kind of permanent magnetism dc micro-motor, the permanent magnetism dc micro-motor includes drive end bearing bracket, sleeve and rear end cap；The end of the sleeve is embedded in drive end bearing bracket and rear end cap；The magnetic shoe of at least two intervals installation is provided with the sleeve lining, tensioning magnetic shoe is provided between the circumferential end of each magnetic shoe pushes away limited step, it is described push away be provided with limited step axially through wears groove, pull bar is equipped with the drive end bearing bracket and rear end cap, described pull bar one end is provided with pole cap and abutted with drive end bearing bracket, and the other end is threadedly coupled with rear end cap；The pull bar passes through wears groove, has and eliminates the advantages of pull bar reduces the volume, Stability Analysis of Structures, high operational paradigm of motor in outside occupancy volume, greatly.
Description
Technical field
A kind of motor is the utility model is related to, more particularly to a kind of permanent magnetism dc micro-motor.
Background technology
Permanent magnet DC motor is according to there is brushless to be divided into permanent-magnet brushless DC electric machine and permanent magnet brush direct current generator, forever
Magnetic direct current generator is a kind of direct current generator that magnetic field is established using permanent magnet.Permanent magnet DC motor is widely used in various fields
In, such as automotive field, field of portable electronic apparatus, aviation field etc..
DC motor structure is as shown in figure 1, including protecgulum, bonnet, the casing being limited between front/rear cover and peace at present
Loaded on the rotor and field frame assembly in casing.Protecgulum is interconnected with bonnet by more root long bar screws, and casing is compressed and limited
Position；Mounting hole site can be set with the external installation of power supply machine on end cap simultaneously.
The mounting structure of this external pull rod, pull bar occupy larger exterior space so that the overall volume of motor
It is larger.
Utility model content
The purpose of this utility model is to provide a kind of permanent magnetism dc micro-motor, which solves pull bar and occupies larger outside
Space so that the problem of overall volume of motor is larger.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of permanent magnetism dc micro-motor, including drive end bearing bracket, sleeve and rear end cap；The end of the sleeve is embedded in drive end bearing bracket
And rear end cap；Be provided with the magnetic shoe of at least two intervals installation on the sleeve lining, the circumferential end of each magnetic shoe it
Between be provided with tensioning magnetic shoe push away limited step, it is described push away be provided with limited step axially through wears groove, the drive end bearing bracket and after
Pull bar is equipped with end cap, described pull bar one end is provided with pole cap and abutted with drive end bearing bracket, and the other end is threadedly coupled with rear end cap；Institute
State pull bar and pass through wears groove.
Using such scheme, the abutting for pushing away limited step keeps magnetic shoe spaced, avoids because of magnetic making between two magnetic shoes
With and produce close to each other；And the magnetic shoe for being spaced installation then forms space, and the wears groove by being set on thrust plate between each other
Remain this interval so that pull bar can pass through from inside；Occupancy volume of the pull bar in outside is directly eliminated, greatly contracting
The occupancy volume that small machine is circumferentially installed；In addition, the mode of this both ends capping, installation cause the installation of motor internal component more
It is convenient, and in an assembling process the axle or rotor of motor can be carried out to carry out axial clamping to reduce axial float.
More preferably：The limited step that pushes away includes being connected to substrate on sleeve lining and two along motor axis projection
For U-shaped elastic portion, the U-shaped end of two elastic portions is connected with the both ends of substrate respectively；The end of the magnetic shoe and bullet
Property portion U-shaped side outer surface abut.
Using such scheme, entirely push away limited step and form elastic construction, certain avoid can be provided when installation and caused
Pushing away limited step can be squeezed into mounting groove, and precompression is provided after installation, keep magnetic shoe to be abutted with the inwall of sleeve.
More preferably：The end of the magnetic shoe is provided with guiding incline in the side of sleeve lining, the elastic portion
End set, which has, prolongs arm, and the end for prolonging arm abuts with the inwall of sleeve.
Using such scheme, prolong arm and abutted with the inwall of sleeve so that the U-shaped side of elastic portion is not hanging, support strength
It is higher, it is more preferable to the support effect of magnetic shoe.
More preferably：Described prolong is provided with transition arcs between arm and the end of elastic portion, the circumferential end of the magnetic shoe
Face and the junction of spigot surface are connected in transition arcs.
Using such scheme, transition location is intensity highest position in whole elastic construction, is not susceptible to deformation, so as to
Play good support effect.
More preferably：The surface of the substrate, which protrudes above, is provided with convex, and the inwall of the sleeve, which protrudes above, to be set
It is equipped with the locating slot coordinated with convex.
Using such scheme, positioning can be played a part of to thrust plate when installation, after installation is complete can be with
Barrier effect is played to thrust plate, prevents it from departing from because of factors such as vibrations.
More preferably：The convex is that sphere is convex.
Using such scheme, there is good two-way guide effect, can be in all directions when pushing away limited step and loading
Position guiding is carried out to it.
More preferably：It is axially disposed on the sleeve to there are two to be used for external assembly hole, the assembling hole position
In push away limited step along motor axial direction both ends, and push away limited step along motor axial direction length be less than magnetic shoe length.
Using such scheme, assembling hole position determines that it internally has certain white space, makes it when installation
Internal certain distance can be entered, i.e., can surmount wall thickness when external installation and be fastened.
More preferably：The outer wall on the edge of the magnetic shoe is axially disposed multiple injecting glue grooves.
Using such scheme, on the basis of the fastening of script carrying out gluing again to the position of magnetic shoe fixes, to reach solid
Determine magnetic shoe, prevent it from producing the effect of axial float.
In summary, the utility model has the advantages that：
1st, pull bar is passed through from inside；Occupancy volume of the pull bar in outside is directly eliminated, greatly reduces electricity
The volume of machine；
2nd, magnetic shoe mounting structure is stable, installation accuracy is high, improves the operating efficiency of motor indirectly.
Brief description of the drawings
Fig. 1 is the structure chart of existing motor;
Fig. 2 is the overall structure figure of the motor of embodiment 1；
Fig. 3 is the structure chart of the motor internal component of embodiment 1；
Fig. 4 is the structure chart of the magnetic shoe of embodiment 1；
Fig. 5 is the structure chart for pushing away limited step of embodiment 1.
In figure, 1, magnetic shoe；2nd, limited step is pushed away；3rd, pull bar；4th, housing；12nd, injecting glue groove；13rd, guiding incline；21st, substrate；22nd, bullet
Property portion；23rd, arm is prolonged；24th, convex；25th, wears groove；26th, transition arcs；41st, drive end bearing bracket；42nd, sleeve；43rd, rear end cap；44th, assemble
Hole；45th, locating slot.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in the scope of protection of the utility model by Patent Law.
Embodiment 1：Permanent magnetism dc micro-motor, as shown in Figures 2 and 3, including drive end bearing bracket 41, sleeve 42 and rear end cap 43；Set
The end of cylinder 42 is embedded in drive end bearing bracket 41 and rear end cap 43.
Reference picture 3 and Fig. 4, the magnetic shoes 1 of two interval installations are provided with the inwall of sleeve 42, the end of magnetic shoe 1 is in sleeve
The side of 42 inwalls is provided with guiding incline 13；The magnetic shoe 1 of two interval installations is provided with the inwall of sleeve 42, each magnetic shoe 1
Tensioning magnetic shoe 1 is provided between end pushes away limited step 2, and the abutting for pushing away limited step 2 keeps magnetic shoe 1 spaced, avoids two magnetic
Produced close to each other between watt 1 because magnetic acts on.End set of the limited step 2 along the axial direction of sleeve 42 is pushed away by being connected to magnetic shoe 1
Axial end terminal block portion, terminal block portion keep magnetic shoe 1 axial location it is identical.Push away be provided with limited step 2 axially through
Wears groove 25；Pull bar 3 is equipped with drive end bearing bracket 41 and rear end cap 43, the one end of pull bar 3 is provided with pole cap and abutted with drive end bearing bracket 41, another
End is threadedly coupled with rear end cap 43；Pull bar 3 passes through wears groove 25, with this pull bar 3 is passed through from inside；Directly eliminate
Occupancy volume of the pull bar 3 in outside.
Reference picture 5, push away limited step 2 and be axially projected as U along motor including the substrate 21 being connected on the inwall of sleeve 42 and two
The elastic portion 22 of type, the both ends of the U-shaped ends of two elastic portions 22 respectively with substrate 21 are connected；The end set of elastic portion 22 has
Prolong arm 23, the end for prolonging arm 23 is crossed the guiding incline 13 of magnetic shoe 1 and abutted with the inwall of sleeve 42, and the branch of elastic portion 22 is improved with this
Support resistivity.Prolong and transition arcs 26 are provided between the end of arm 23 and elastic portion 22, the circumferential end faces of magnetic shoe 1 and spigot surface
Junction is connected in transition arcs 26.
Reference picture 2 and Fig. 5, the surface of substrate 21 protrude above is provided with profile be sphere convex 24, sleeve 42 it is interior
Wall protrudes above the locating slot 45 for being provided with and coordinating with convex 24, there is provided positioning, it is easy to push away the installation of limited step 2, and after mounting
Prevent it from shifting.
Axially disposed on sleeve 42 to have two to be used for external assembly hole 44, assembly hole 44, which is located at, pushes away limited step 2 along motor
The both ends of axial direction, and the length along motor axial direction for pushing away limited step 2 is less than the length of magnetic shoe 1.
In addition, reference picture 4, be provided with multiple injecting glue grooves 12 through outer wall on the axial end of magnetic shoe 1, injecting glue groove 12 from
The groove depth of end radially gradually becomes shallower as.The position of magnetic shoe 1 is fixed again on the basis of the fastening of script, to fix magnetic
Watt 1.
Claims (8)
1. a kind of permanent magnetism dc micro-motor, it is characterized in that：Including drive end bearing bracket (41), sleeve (42) and rear end cap (43)；The set
The end of cylinder (42) is embedded in drive end bearing bracket (41) and rear end cap (43)；At least two intervals are provided with sleeve (42) inwall
The magnetic shoe (1) of installation, tensioning magnetic shoe (1) is each provided between the circumferential end of the magnetic shoe (1) pushes away limited step (2), institute
State push away be provided with limited step (2) axially through wears groove (25), be equipped with drawing on the drive end bearing bracket (41) and rear end cap (43)
Bar (3), described pull bar (3) one end are provided with pole cap and abutted with drive end bearing bracket (41), and the other end is threadedly coupled with rear end cap (43)；Institute
State pull bar (3) and pass through wears groove (25).
2. permanent magnetism dc micro-motor according to claim 1, it is characterized in that：The limited step (2) that pushes away includes being connected to sleeve
(42) substrate on inwall (21) and two are axially projected as U-shaped elastic portion (22), two elastic portions (22) along motor
Both ends of the U-shaped end respectively with substrate (21) be connected；The appearance of the end of the magnetic shoe (1) and the U-shaped side of elastic portion (22)
Face abuts.
3. permanent magnetism dc micro-motor according to claim 2, it is characterized in that：The end of the magnetic shoe (1) is in sleeve (42)
The side of inwall is provided with guiding incline (13), the end set of the elastic portion (22), which has, prolongs arm (23), the arm (23) that prolongs
End abuts with the inwall of sleeve (42).
4. permanent magnetism dc micro-motor according to claim 3, it is characterized in that：The end for prolonging arm (23) and elastic portion (22)
Transition arcs (26) are provided between portion, the circumferential end faces of the magnetic shoe (1) and the junction of spigot surface are connected to transition arcs (26)
On.
5. permanent magnetism dc micro-motor according to claim 2, it is characterized in that：The surface of the substrate (21) protrudes above setting
There is convex (24), the inwall of the sleeve (42) protrudes above the locating slot (45) for being provided with and coordinating with convex (24).
6. permanent magnetism dc micro-motor according to claim 5, it is characterized in that：The convex (24) is that sphere is convex.
7. permanent magnetism dc micro-motor according to claim 1, it is characterized in that：It is axially disposed on the sleeve (42) to have two
Individual to be used for external assembly hole (44), the assembly hole (44) is located at the both ends for pushing away limited step (2) along motor axial direction, and pushes away limited step
(2) the length along motor axial direction is less than the length of magnetic shoe (1).
8. permanent magnetism dc micro-motor according to claim 1, it is characterized in that：The outer wall on the edge of the magnetic shoe (1) is vertically
It is provided with multiple injecting glue grooves (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720692866.2U CN206894396U (en) | 2017-06-14 | 2017-06-14 | Permanent magnetism dc micro-motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720692866.2U CN206894396U (en) | 2017-06-14 | 2017-06-14 | Permanent magnetism dc micro-motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206894396U true CN206894396U (en) | 2018-01-16 |
Family
ID=61319192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720692866.2U Expired - Fee Related CN206894396U (en) | 2017-06-14 | 2017-06-14 | Permanent magnetism dc micro-motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206894396U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110948470A (en) * | 2019-12-27 | 2020-04-03 | 深圳市越疆科技有限公司 | Synchronous pulley drive structure, robot drive base and desktop robotic arm |
-
2017
- 2017-06-14 CN CN201720692866.2U patent/CN206894396U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110948470A (en) * | 2019-12-27 | 2020-04-03 | 深圳市越疆科技有限公司 | Synchronous pulley drive structure, robot drive base and desktop robotic arm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 |