CN202260724U - Novel short circuit board for motor rotor - Google Patents
Novel short circuit board for motor rotor Download PDFInfo
- Publication number
- CN202260724U CN202260724U CN2011203868319U CN201120386831U CN202260724U CN 202260724 U CN202260724 U CN 202260724U CN 2011203868319 U CN2011203868319 U CN 2011203868319U CN 201120386831 U CN201120386831 U CN 201120386831U CN 202260724 U CN202260724 U CN 202260724U
- Authority
- CN
- China
- Prior art keywords
- spacing hole
- end plates
- rotor
- end plate
- motor rotor
- 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
Abstract
The utility model relates to a motor rotor part and particularly relates to a novel short circuit board for a motor rotor. The novel short circuit board comprises an end plate, wherein at least four limiting holes are formed on the end plate; an axial hole is formed on the end plate; the axial hole is formed at the center of the end plate on an axial inside edge; the limiting holes are symmetrically formed on arc edges at two ends of the end plate; on the limiting holes, notches are formed by three sections of arcs; filleted corners are arranged on abrupt change parts of the end plate structure; an angular deviation between two limiting holes is 15-degree; the angular deviation between the limiting hole close to the axial inner side of the end plate and the center of the axial hole is 12-degree; the diameter size of major arcs of the limiting holes is 4-theta 4.5mm; the radiuses of the other two sections of arcs of the limiting holes are both 0.5mm; and the width of the limiting holes is 3mm. The utility model aims to further improve the structure of the short circuit board for the motor rotor and simplify the structure of the short circuit board, so as to further simplify the assembling of the motor rotor and save the manufacturing cost of the motor rotor.
Description
Technical field
The utility model relates to a kind of motor rotor part, is specifically related to a kind of novel short board of rotor.
Background technology
The rotor of motor is formed by metal film stack system usually, and wherein, every all has opening, and multi-disc is superimposed together, and opening is formed connect the conductor slot that rotor extends vertically.In use, utilize the magnetic field that produces in the stator and in the rotor winding induced current because the deviation between stator winding electric field and the rotor winding electric field, rotor begins to rotate.This motor has good starting performance, and still, in order to continue induction field in the rotor winding, the stator electric field must be equivalent to the rotor winding and move, and therefore, the rotary speed of rotor electric field will be lower than the rotary speed of electric field in the stator all the time.In order to improve spinner velocity, the rotor of motor also comprises one group of permanent magnet except winding.
In the manufacture process of motor; Rotor core is made with the cavity that is used to hold permanent magnet usually; And having opening at rotor end-face, described opening enough is inserted into permanent magnet in the cavity in molding process allowing greatly, when permanent magnet is inserted in the cavity; Permanent magnet must firmly fix up, to avoid mobile in the rotor rotation process.
Drop out in the rotor rotation process for fear of permanent magnet, prevent the permanent magnet short circuit simultaneously, some rotors begin to adopt short board, and these short boards these openings of sealing or the size that reduces this opening at least drop out from cavity to prevent permanent magnet.In existing known motor, short board connects through traditional rivet or nail usually, and rivet or nail extend through the spacing hole of short board and get in the rotor core downwards, and rivet is fixed on the rotor core.Yet this riveted joint mode has increased complexity and manufacturing cost that motor is made.
The utility model content
The purpose of the utility model: in order further to improve the short board structure of rotor, make the structure of short board simpler, thereby make the assembling of rotor easier, and practice thrift the manufacturing cost of rotor, and propose a kind of novel short board of rotor.
The technical scheme of the utility model: a kind of novel short board of rotor; Comprise end plates; End plates are provided with spacing hole, also are provided with axial hole, and axial hole is arranged at the center of the axial inside edge of end plates; Described spacing hole is symmetricly set in the arc edge at end plates two ends, and described spacing hole forms breach by three sections circular arcs; Sudden change place of described end plates structure is fillet.
The novel short board of a kind of rotor of the utility model, because spacing hole is symmetricly set in the arc edge at end plates two ends, and spacing hole forms breach by three sections circular arcs, so be convenient to very much assemble; Simultaneously, this structural design makes short board prevent or reduce and can bring into play better effect aspect the permanent magnet short circuit; In addition, owing to consider in the rotor rotation process, short board can crackle occur owing to concentrating of pressure, thereby influences the quality of product, is fillet so need sudden change place of end plates structure all be beaten, thereby improves the quality of product, and reduces the manufacturing cost of product.
Further, described spacing hole quantity is at least 4.
Because the short board of the utility model is used for fixing rotor end-face and drops out from cavity to prevent permanent magnet; So the quantity of spacing hole can not be very little; At least be provided with 4, and need be symmetricly set in the arc edge at end plates two ends, thereby play the good result of fixed rotor end face.
Further, the angular deviation between described spacing hole two holes is 15 °, and is 12 ° near the axially inboard spacing hole of end plates and the angular deviation in the axial hole center of circle.
Because the short board of the utility model is used for being used with rotor, so the position of spacing hole need be consistent with the pilot hole of rotor.
Further, the diameter dimension of described spacing hole major arc is 4-θ 4.5mm, and the radius of other two sections circular arcs of described spacing hole is 0.5mm, and the width of described spacing hole is 3mm.
Because the short board of the utility model is used for being used with rotor, so the size of spacing hole need be consistent with the pilot hole of rotor.
Description of drawings
Fig. 1 is the schematic top plan view of the novel short board embodiment of a kind of rotor of the utility model.
Embodiment
As shown in Figure 1, the utility model provides a kind of novel short board of rotor, comprises end plates 1; End plates 1 are provided with spacing hole 2; And at least 4 of spacing hole 2 quantity also are provided with axial hole 3 on the end plates 1, axial hole 3 is arranged at the center of end plates 1 axial inside edge; Spacing hole 2 is symmetricly set in the arc edge at end plates 1 two ends, and spacing hole 2 forms breach by three sections circular arcs; Sudden change place of end plates 1 structure is fillet; Angular deviation between 2 liang of holes of spacing hole is 15 °, and is 12 ° near the angular deviation in the axially inboard spacing hole 2 of end plates 1 and axial hole 3 centers of circle; The diameter dimension of spacing hole 2 major arcs is 4-θ 4.5mm, and the radius of other two sections circular arcs of described spacing hole 2 is 0.5mm, and the width of described spacing hole 2 is 3mm.
In the present embodiment; The radius of end plates 1 two ends circular arc is 54.2mm; End plates 1 are axially inboard to be made up of axial hole 3 inner arc and two straightways and four arcs; The end plates 1 axially outside are made up of axial hole 3 outer arc and four straightways and eight sections circular arcs, and axial hole 3 outer arc and adjacent two straightways and groove of six sections circular arcs formation.Wherein, The degree of depth of groove is 6mm; Width is 99mm; The radius of axial hole 3 inner arc is 14mm, and axial hole 3 outer arc radiuses are 26.5mm, is that the arc transition of 3mm is connected by radius between axial hole 3 inner arc and the adjacent straightway; The other end of the straightway that is connected with axial hole 3 inner arc is that the circular arc of 1mm is connected with the outer peripheral edges transition of end plates 1 through radius; Be that the arc transition of 2mm is connected by radius between axial hole 3 outer arc and the adjacent straightway, the two ends of groove are 3.5mm with radius through radius is that two sections circular arcs of 2mm are connected with the straightway transition of groove ends, and the top straightway of groove is that the circular arc of 1mm is connected with the outer peripheral edges transition of end plates 1 through radius.In addition, the vertical range in the top of groove and axial hole 3 centers of circle is 28.5mm, and the vertical range in the end plates 1 axial inner side end and axial hole 3 centers of circle is 4mm, and the thickness of end plates 1 is 3mm.
Be convenient to production operation when considering assembling, spacing hole 2 is symmetricly set in the arc edge at end plates 1 two ends, and spacing hole 2 form breach by three sections circular arcs; Wherein, Diameter than orthodrome is d=4-θ 4.5mm, and the radius of other two sections shorter circular arcs is R2=R3=0.5mm, the width h=3mm of breach; Near the angular deviation in the axially inboard spacing hole 2 of end plates 1 and axial hole 3 centers of circle is α=12 °, and the angular deviation of two adjacent spacing holes 2 is β-α=15 °.
The short board of considering the utility model is used for fixing rotor end-face and drops out from cavity to prevent permanent magnet, thus at least 4 of the quantity of spacing hole 2, and need be symmetricly set in the arc edge at end plates 1 two ends.
Consider in the rotor assembling process; Armature spindle is assemblied in the centre of rotor position usually; Dying is arranged at axial hole 2 center of end plates 1 axial inside edge, and is used with two of the short boards of the utility model, thereby forms the cavity of fitting with armature spindle.
Consider in the rotor rotation process that the short board of the utility model can crackle occur owing to concentrating of pressure, thereby influences the quality of product, is fillet so need sudden change place of end plates 1 structure all be beaten.
The short board that it is pointed out that the utility model is permeability magnetic material by processing with the rotor identical materials.This special structure design of the short board of the utility model makes short board prevent or reduce and can bring into play better effect aspect the permanent magnet short circuit.
Above-described only is the preferred implementation of the utility model; Should be understood that for a person skilled in the art; Under the prerequisite that does not break away from the utility model structure, can also make some distortion and improvement, these can not influence effect and practical applicability that the utility model is implemented.
Claims (4)
1. the novel short board of a rotor; Comprise end plates (1); End plates (1) are provided with spacing hole (2), also are provided with axial hole (3), and axial hole (3) is arranged at the axially center of inside edge of end plates (1); It is characterized in that: described spacing hole (2) is symmetricly set in the arc edge at end plates (1) two ends, and described spacing hole (2) forms breach by three sections circular arcs; Sudden change place of described end plates (1) structure is fillet.
2. the novel short board of a kind of rotor according to claim 1 is characterized in that: 4 of described spacing hole (2) quantity at least.
3. the novel short board of a kind of rotor according to claim 1 and 2; It is characterized in that: the angular deviation between described spacing hole (2) two holes is 15 °, and is 12 ° near the angular deviation in the axially inboard spacing hole (2) of end plates (1) and axial hole (3) center of circle.
4. the novel short board of a kind of rotor according to claim 1; It is characterized in that: the diameter dimension of described spacing hole (2) major arc is 4-θ 4.5mm; The radius of other two sections circular arcs of described spacing hole (2) is 0.5mm, and the width of described spacing hole (2) is 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203868319U CN202260724U (en) | 2011-10-12 | 2011-10-12 | Novel short circuit board for motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203868319U CN202260724U (en) | 2011-10-12 | 2011-10-12 | Novel short circuit board for motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202260724U true CN202260724U (en) | 2012-05-30 |
Family
ID=46121907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203868319U Expired - Fee Related CN202260724U (en) | 2011-10-12 | 2011-10-12 | Novel short circuit board for motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202260724U (en) |
-
2011
- 2011-10-12 CN CN2011203868319U patent/CN202260724U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1819405B (en) | Rotor with a cover plate for securing a magnet in the rotor | |
| CN203206019U (en) | Rotor structure of embedded tangential magnetic field brushless direct current motor | |
| CN113364183A (en) | Permanent magnet motor | |
| CN113346643A (en) | Permanent magnet motor | |
| CN110535265B (en) | Motor rotor | |
| CN104242504A (en) | Rotor of synchronous reluctance motor | |
| CN204376558U (en) | Rotor core and there is its motor | |
| CN201667564U (en) | Stator, rotor structures of a permanent magnetic electric motor | |
| CN102545433A (en) | Tangential rotor for rotating motor | |
| CN208548769U (en) | A kind of combination type permanent-magnet rotor | |
| CN202260724U (en) | Novel short circuit board for motor rotor | |
| CN202260697U (en) | Novel short-circuit board | |
| CN202260698U (en) | Short circuit board of motor rotor | |
| CN110266124B (en) | Stator core and motor | |
| CN203086308U (en) | Asynchronous starting permanent magnet synchronous motor rotor and permanent magnet motor thereof | |
| CN116094275A (en) | Built-in permanent magnet motor | |
| CN201994743U (en) | Rotor structure of permanent magnet motor | |
| CN209170078U (en) | Flat type permanent-magnet servo motor built in a kind of low inertia | |
| CN107196436B (en) | Rotor punching, skewed pole rotor and magneto | |
| CN216672706U (en) | Rotor structure and motor with same | |
| CN207819583U (en) | A kind of built-in permanent magnetic variable-frequency motor rotor | |
| CN204886461U (en) | Permanent -magnet machine's rotor structure | |
| CN209448518U (en) | A kind of rotor punching | |
| CN201352731Y (en) | Permanent-magnetic motor rotor | |
| CN216056537U (en) | Rotor core and motor rotor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20121012 |