CN208739002U - A kind of low noise high life stepper motor - Google Patents
A kind of low noise high life stepper motor Download PDFInfo
- Publication number
- CN208739002U CN208739002U CN201821591927.7U CN201821591927U CN208739002U CN 208739002 U CN208739002 U CN 208739002U CN 201821591927 U CN201821591927 U CN 201821591927U CN 208739002 U CN208739002 U CN 208739002U
- Authority
- CN
- China
- Prior art keywords
- bottom cover
- face
- bearings
- riveting
- stepper motor
- Prior art date
- 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
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to stepper motor technical fields, in particular disclose a kind of low noise high life stepper motor, including stator, it is installed in the bottom cover and fetching plate at both ends respectively, it is installed in two bearings of bottom cover Yu fetching plate respectively, it is rotatably dispose in stator and is installed in the rotor of two bearings, rotor includes axis body, magnetic substance and two adjusting washers, axis body is installed in two bearings, two bearings include ontology and the benchmark column connecting with ontology, ontology is equipped with the riveting face for riveting, the end face of the free end of benchmark column is benchmark plane, the two sides of adjusting washer contradict end face and the datum plane of magnetic substance respectively；During bearing and bottom cover (or fetching plate) rivet, extraneous riveting equipment contradicts on riveting face, so that generating coining on the riveting face of ontology, datum plane stress is avoided to deform, guarantee the flatness between adjusting washer and adjusting washer, the noise for reducing motor, promotes the endurance life of motor.
Description
Technical field
The utility model relates to stepper motor technical fields, in particular disclose a kind of low noise high life stepper motor.
Background technique
In the manufacturing process of stepper motor, the axis body by the rotor of stepper motor is needed to be mounted on stator via bearing
On, in the prior art on the shell mainly by the stator that bearing is riveted on to stepper motor, in the riveting of bearing and shell
In the process, the riveting stress surface of bearing can be deformed because external force applies, and cause the contact surface out-of-flatness of bearing and gasket, axis body exists
The related gasket of meeting rotates together in rotation process, and due to the contact surface out-of-flatness of bearing and gasket, gasket will collide when rotating
On the one hand bearing will cause stepper motor and generate noise；Another aspect motor operates for a long time, and gasket will be prone to wear, and causes
Motor is durable bad and shortens the service life.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, the purpose of this utility model is to provide a kind of low noises
High life stepper motor, during bearing and bottom cover (or fetching plate) rivet, extraneous riveting equipment is contradicted in riveting face
On, so that generating coining on the riveting face of ontology, datum plane stress is avoided to deform, guarantees adjusting washer and adjusting washer
Between flatness, reduce the noise of motor, promote the endurance life of motor.
To achieve the above object, a kind of low noise high life stepper motor of the utility model, including stator, install respectively
In stator both ends bottom cover and fetching plate, be respectively installed in two bearings of bottom cover and fetching plate, be rotatably dispose in stator simultaneously
It is installed in the rotor of two bearings, rotor includes axis body, magnetic substance and two adjusting washers, and axis body is installed in two bearings,
Magnetic substance is set in the outside of axis body and is located in stator, and two adjusting washers are sheathed on respectively on the outside of axis body, and magnetic substance is located at
Between two adjusting washers, two bearings include ontology and the benchmark column connecting with ontology, and ontology is equipped with the riveting for riveting
Junction, benchmark column are projected from riveting face, and benchmark column is located at two bearings side close to each other, the free end of benchmark column
End face is benchmark plane, and the two sides of adjusting washer contradict end face and the datum plane of magnetic substance respectively.
Wherein, the bearing includes that inner ring and turning set are set to the outer ring on the outside of inner ring, and axis body is installed in inner ring, benchmark
Column, riveting face are arranged on inner ring.
Wherein, the outer ring includes department of assembly and the limiting section that connect with department of assembly, and the department of assembly of two bearings fills respectively
Set on bottom cover and fetching plate, the limiting section of a bearing is for contradicting side of the bottom cover far from fetching plate, the limit of another bearing
Position portion is for contradicting side of the fetching plate far from bottom cover.
Wherein, the stator includes two coil holders, two coils for being sheathed on two coil holders respectively, and two coil holders are detachable
Ground links together, and two coil holder sides close to each other are respectively provided with there are two supporting leg, and a supporting leg of a coil holder protrudes into
Between two supporting legs of another coil holder, bottom cover, fetching plate are installed in the side of two coil holders away from each other respectively.
Wherein, two supporting leg sides close to each other of a coil holder are provided with rib slot, the branch of another coil holder
The two sides of leg are provided with fin, and fin is for protruding into rib slot.
Wherein, two supporting legs of the coil holder are installed with conductive feet, and the both ends of coil are electrically connected in two branch
The conductive feet of leg；Stator further includes the magnetic conductive cylinder being sheathed on the outside of two coil holders, and magnetic conductive cylinder is used to limit coil in coil holder,
Magnetic conductive cylinder is equipped with gap slot, and supporting leg stretches out magnetic conductive cylinder via gap slot.
The utility model has the advantages that extraneous riveting equipment conflict is riveting during bearing and bottom cover (or fetching plate) rivet
On face, so that generating coining on the riveting face of ontology, datum plane stress is avoided to deform, guarantees adjusting washer and adjusting pad
Flatness between circle reduces the noise of motor, promotes the endurance life of motor.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model；
Fig. 2 is the partial enlargement structural representation of part A in Fig. 1；
Fig. 3 is the schematic perspective view before the bearing riveting of the utility model；
Fig. 4 is the schematic perspective view after the bearing riveting of the utility model.
Appended drawing reference includes:
1-stator 2-bottom cover, 3-fetching plate
4-bearing 5-rotor, 6-axis bodies
7-8-adjusting washer of magnetic substance, 9-riveting faces
11-datum plane 12-limiting section, 13-coil holders
14-coil 15-supporting leg, 16-conductive feets.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made below with reference to examples and drawings further
Explanation, the content that embodiment refers to not is restriction to the utility model.
Shown in please referring to Fig.1 to Fig.4, a kind of low noise high life stepper motor of the utility model, including stator 1, point
The bottom cover 2 and fetching plate 3 that are not installed on 1 left and right ends of stator are respectively installed on bottom cover 2 and two axis on fetching plate 3
In holding 4, being rotatably arranged on stator 1 and it is installed in the rotors 5 of two bearings 4, bottom cover 2 is spaced each other with fetching plate 3 and parallel sets
It sets, rotor 5 includes axis body 6, magnetic substance 7 and two adjusting washers 8, and the both ends of axis body 6 are respectively installed in two bearings 4, magnetic
Property body 7 be set in axis body 6 outside and be located at stator 1 in, have between the outer surface of magnetic substance 7 and the intracavity sidewall of stator 1
Gap, two adjusting washers 8 are respectively sleeved at 6 outside of axis body, and two adjusting washers 8 are spaced each other and are arranged in parallel, magnetic substance 7
Between two adjusting washers 8, two bearings 4 include ontology and the benchmark column that connect with ontology, are arranged on ontology useful
In the riveting face of riveting 9, benchmark column is projected from riveting face 9, and benchmark column is located at two bearings 4 side close to each other, base
The end face of the free end of quasi- column is benchmark plane 11, and the two sides of adjusting washer 8 are contradicted on the end face of magnetic substance 7 respectively and benchmark
In plane 11.
In bearing 4 and bottom cover 2(or fetching plate 3) riveting during, extraneous riveting equipment contradicts on riveting face 9,
So that generating coining on the riveting face of ontology 9, riveting equipment does not contact datum plane 11,11 stress of datum plane is avoided to become
Shape and influence flatness, guarantee the flatness between adjusting washer 8 and adjusting washer 8, rotated in the related adjusting washer 8 of axis body 6
During, it effectively avoids causing adjusting washer 8 to hit datum plane 11, drop because the flatness of datum plane 11 changes
The noise of low motor promotes the endurance life of motor.Noise decline 3dB when motor operates or so, the sound fraction defective of motor
The endurance life of decline 10% or so, motor improves 30%.
The bearing 4 includes inner ring and rotates the outer ring being set on the outside of inner ring, and axis body 6 is installed in inner ring, benchmark column,
Riveting face 9 is arranged on inner ring；In the present embodiment, riveting face 9 is annular surface, and riveting face 9 is arranged around benchmark column, benchmark column
Positioned at the center in riveting face 9.
The outer ring includes department of assembly and the limiting section connecting with department of assembly 12, and the department of assembly of two bearings 4 installs respectively
On bottom cover 2 and on fetching plate 3, the limiting section 12 of a bearing 4 is used to contradict the appearance of side of the bottom cover 2 far from fetching plate 3
Face, the limiting section 12 of another bearing 4 are used to contradict the outer surface of side of the fetching plate 3 far from bottom cover 2.It is kept off using limiting section 12
Only bottom cover 2 or fetching plate 3 prevent bearing 4 to be excessively fitted into bottom cover 2 or in fetching plate 3, promoted bearing 4 and bottom cover 2, bearing 4 with
The assembling yield of fetching plate 3.
The stator 1 includes two coil holders 13, two coils 14 for being respectively sleeved at two coil holders, 13 outside, two coil holders
13 are removably joined together, and two sides close to each other of coil holder 13 are respectively provided with there are two supporting leg 15, coil holder 13
One supporting leg 15 protrudes between two supporting legs 15 of another coil holder 13, utilizes the friction between the supporting leg 15 of two coil holders 13
Power fits together two coil holders 13, facilitates the assembly and disassembly of two coil holders 13, and bottom cover 2, fetching plate 3 are respectively installed in two
On the side of a coil holder 13 away from each other.
Two sides close to each other of supporting leg 15 of one coil holder 13 are provided with rib slot (not shown), rib slot
It being formed from the outer surface of supporting leg 15 is recessed, the two sides of the supporting leg 15 of another coil holder 13 are provided with fin (not shown),
The outer surface of fin from supporting leg 15 projects, and after two coil holders 13 fit together, fin is used to protrude into rib slot,
Using the side wall block fin of rib slot, two coil holders 13 is prevented to be disengaged from each other.
Two supporting legs 15 of the coil holder 13 are installed with conductive feet 16, and the both ends of coil 14 are electrically connected at two
In the conductive feet 16 of supporting leg 15；Stator 1 further includes the magnetic conductive cylinder for being set in two coil holders, 13 outside, and the cross section of magnetic conductive cylinder is substantially
C-shaped, magnetic conductive cylinder is made of permeability magnetic material, and on the one hand magnetic conductive cylinder is used to limit coil 14 in coil holder 13, magnetic conductive cylinder is another
On the one hand completely cut off extraneous electromagnetic interference, promote the stepping angular accuracy of stepper motor；Magnetic conductive cylinder is equipped with gap slot, and supporting leg 15 passes through
Magnetic conductive cylinder is stretched out by gap slot.
The above content is only the preferred embodiment of the utility model, and the content of the present specification should not be construed as to the utility model
Limitation.
Claims (6)
1. a kind of low noise high life stepper motor, it is characterised in that: including stator, respectively be installed in stator both ends bottom cover and
Fetching plate, two bearings for being installed in bottom cover and fetching plate respectively are rotatably dispose in stator and are installed in turning for two bearings
Son, rotor include axis body, magnetic substance and two adjusting washers, and axis body is installed in two bearings, and magnetic substance is set in axis body
Outside is simultaneously located in stator, and two adjusting washers are sheathed on respectively on the outside of axis body, and magnetic substance is located between two adjusting washers, and two
A bearing includes ontology and the benchmark column connecting with ontology, and ontology is equipped with the riveting face for riveting, and benchmark column rivets face certainly
It projects, benchmark column is located at two bearings side close to each other, and the end face of the free end of benchmark column is benchmark plane, adjustment
The two sides of washer contradict end face and the datum plane of magnetic substance respectively.
2. low noise high life stepper motor according to claim 1, it is characterised in that: the bearing includes inner ring and turns
The dynamic outer ring being sheathed on the outside of inner ring, axis body are installed in inner ring, and benchmark column, riveting face are arranged on inner ring.
3. low noise high life stepper motor according to claim 2, it is characterised in that: the outer ring include department of assembly and
The limiting section connecting with department of assembly, the department of assembly of two bearings are installed in bottom cover and fetching plate, the limiting section of a bearing respectively
For contradicting side of the bottom cover far from fetching plate, the limiting section of another bearing is for contradicting side of the fetching plate far from bottom cover.
4. low noise high life stepper motor according to claim 1, it is characterised in that: the stator includes two lines
Frame, two coils for being sheathed on two coil holders respectively, two coil holders are removably joined together, and two coil holders are close to each other
Side is respectively provided with there are two supporting leg, and a supporting leg of a coil holder protrudes between two supporting legs of another coil holder, and bottom cover takes
It pays plate and is installed in the side of two coil holders away from each other respectively.
5. low noise high life stepper motor according to claim 4, it is characterised in that: two branch of a coil holder
Leg side close to each other is provided with rib slot, and the two sides of the supporting leg of another coil holder are provided with fin, and fin is used for projection
Enter in rib slot.
6. low noise high life stepper motor according to claim 4, it is characterised in that: two supporting legs of the coil holder are equal
It is installed with conductive feet, the both ends of coil are electrically connected in the conductive feet of two supporting legs；Stator further includes being sheathed on two lines
Magnetic conductive cylinder on the outside of frame, magnetic conductive cylinder are used for coil limit in coil holder, and magnetic conductive cylinder is equipped with gap slot, and supporting leg is prominent via gap slot
Stretch out magnetic conductive cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821591927.7U CN208739002U (en) | 2018-09-28 | 2018-09-28 | A kind of low noise high life stepper motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821591927.7U CN208739002U (en) | 2018-09-28 | 2018-09-28 | A kind of low noise high life stepper motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208739002U true CN208739002U (en) | 2019-04-12 |
Family
ID=66034785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821591927.7U Expired - Fee Related CN208739002U (en) | 2018-09-28 | 2018-09-28 | A kind of low noise high life stepper motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208739002U (en) |
-
2018
- 2018-09-28 CN CN201821591927.7U patent/CN208739002U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108679811B (en) | Locking buckle assembly and air conditioner | |
| WO2016000386A1 (en) | Rotary drum washing machine outer drum, rotary drum washing machine, and method of assembling inner and outer drums thereof | |
| CN208739002U (en) | A kind of low noise high life stepper motor | |
| CN101632213B (en) | Double rotor type motor | |
| CN105626536A (en) | Compressor pump body and compressor comprising same | |
| CN207426898U (en) | A kind of high-effect ceiling-fan motor | |
| CN205195441U (en) | Brushless fan motor of direct current and fan | |
| KR101380223B1 (en) | The structure of Installing PCB and Plate for Motor | |
| CN204361814U (en) | A kind of electric corrosion prevention structure of plastic packaging motor | |
| CN205282403U (en) | Small high -power relay | |
| KR20210135204A (en) | Shaft asembly with movable bearing housing | |
| CN207868934U (en) | A kind of permanent magnetic synchronous traction machine | |
| CN106499324A (en) | A kind of brake gear suitable for electric rolling door device | |
| CN203660840U (en) | Large-scale vertical double-air-gap disc-type motor | |
| JP2016059083A (en) | Abduction type induction motor and ceiling fan having the same | |
| CN103956842A (en) | Electromagnetic ceiling-fan motor without iron core | |
| CN204858907U (en) | Stator piece group wire winding frock | |
| CN216599156U (en) | Novel motor stator core coil framework | |
| CN204487470U (en) | A kind of connecting rod lower half bearing press mounting tool | |
| CN205092668U (en) | There is winding stator core fixed structure | |
| CN104648042A (en) | Hollow wheel structure with wheel cover buckle | |
| CN205780738U (en) | A kind of door rolling machine gear box housing | |
| CN203574461U (en) | Iron core-free electromagnetic ceiling-fan motor | |
| CN203926140U (en) | A kind of automobile fan casing | |
| KR20160008414A (en) | Rotor and motor comprising the same |
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: 20190412 Termination date: 20200928 |