CN203301269U - Rotor of DC motor and DC motor provided therewith - Google Patents
Rotor of DC motor and DC motor provided therewith Download PDFInfo
- Publication number
- CN203301269U CN203301269U CN2013202721481U CN201320272148U CN203301269U CN 203301269 U CN203301269 U CN 203301269U CN 2013202721481 U CN2013202721481 U CN 2013202721481U CN 201320272148 U CN201320272148 U CN 201320272148U CN 203301269 U CN203301269 U CN 203301269U
- Authority
- CN
- China
- Prior art keywords
- punching
- magnetic
- rotor
- motor
- punching sheet
- 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
Images
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to the rotor of a DC motor and a DC motor provided therewith, which comprises a nonmagnetic base. The outer circumference of the nonmagnetic base is uniformly provided with a plurality of the brackets. A punching sheet group is fixedly arranged in a gap between every two adjacent brackets respectively. Magnetic steel in a cavity is fixedly arranged both on the top surfaces of the brackets and on the side walls of every two adjacent punching sheet groups. The magnetic steel is enclosed by the punching sheet groups and the nonmagnetic base, thus is free from the influence of an alternating magnetic field in a stator winding. Therefore, the demagnetization phenomenon of the magnetic steel is avoided. The magnetic steel is fixed by the punching sheet groups, thus is prevented from falling off during the high-speed rotation process of the rotor. The isolation effect of magnetic circuits is realized by means of the nonmagnetic base, so that no magnetic circuit is formed between the magnetic steel, and between the punching sheet groups. The magnetic loss is therefore reduced. Since the punching sheet groups is formed through stacking up a plurality of punching sheets, the eddy-current loss hardly exists inside the punching sheet groups during the running process of the motor. The DC motor provided with the above rotor is high in efficiency, long in service life and high in reliability.
Description
Technical field
The utility model relates to a kind of DC motor rotor and applies the direct current machine of this rotor, and the built-in layout of its permanent magnetic steel, have low magnetic loss, low eddy current loss characteristic, magnet steel difficult drop-off and difficult demagnetization.
Background technology
Existing DC motor rotor, permanent magnet are arranged in the outer most edge of rotor block, when rotor high-speed rotates, due to the effect of centrifugal force make magnetic shoe occur coming off even to have to throw away may; The magnetic line of force that stator winding produces will form loop through permanent magnet, due to permanent magnet larger perpendicular to magnetic line of force direction magnetic loss, so the magnetic line of force that stator winding produces is through the magnetic line of force direction perpendicular to permanent magnet, the magnetic loop magnetic loss is larger, and motor efficiency descends; Due to permanent magnet, be arranged in the outer most edge of rotor block, directly be exposed under the alternating magnetic field of stator winding, make permanent magnet the phenomenon of demagnetizing easily occur.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of DC motor rotor, magnet steel difficult drop-off and can not demagnetize and apply the direct current machine of this rotor.
In order to solve the problems of the technologies described above, the utility model provides a kind of DC motor rotor, it comprises: the non-magnetic seat 1 that is evenly equipped with a plurality of supports 7 on outer circumference, be fixed at punching group 2 in the space between adjacent support 7, be fixed at the magnet steel 4 in the cavity that the sidewall by support 7 end faces and adjacent two punching groups 2 forms.
Punching 6 both sides in described punching group 2 are provided with semicircle gap 1, after punching 6 is stacking, form the semi-circular recesses of punching group 2 both sides, described support 7 both sides are provided with the projection 8 of end face semicircular in shape, and this projection coordinates with described semi-circular recesses, to punching group 2 location;
Punching 6 both sides in described punching group 2 are provided with square gap 2 10, after punching is stacking, form the square groove of punching group both sides, and the square groove of adjacent punching group coordinates with described magnet steel 4, and magnet steel is located.
Between the top pole shoe 12 of adjacent punching group 2, there is gap.
Described non-magnetic seat 1 both sides end face is provided with circular insulating board 3.
Described punching group 2 is by stacking the forming of punching 6 of multi-disc energy magnetic conduction.
The utility model also provides a kind of direct current machine, the above-mentioned DC motor rotor of rotor application in this direct current machine.
With respect to prior art, the technique effect that the utlity model has is:
1) magnet steel is surrounded by punching group and non-magnetic seat, makes it not affected by the alternating magnetic field in stator winding, not there will be the demagnetization phenomenon;
2) magnet steel is fixed by the punching group, in the rotor high-speed rotary course, can not come off;
3) described non-magnetic seat has the effect of isolation magnetic circuit, prevents between each magnet steel reaching between each punching group forming any magnetic circuit, thereby reduces magnetic loss;
4) punching group forms by the multi-disc punching is stacking, while guaranteeing machine operation, is difficult for forming eddy current loss in the punching group;
5) adopt the direct current machine of above-mentioned DC motor rotor, its efficiency is high, long working life, and reliability is high.
The accompanying drawing explanation
In order to clearly demonstrate innovative principle of the present utility model and than the technical advantage of existing product, below by means of accompanying drawing possible embodiment of limiting examples explanation by the described principle of application.In the drawings:
Fig. 1 is the front elevation of DC motor rotor;
Fig. 2 is the A-A profile of DC motor rotor;
Fig. 3 is insulation board figure;
Fig. 4 is the DC motor rotor interior view;
Fig. 5 is the punching front elevation.
Embodiment
As Fig. 1, shown in Figure 2, DC motor rotor of the present utility model comprises: non-magnetic seat 1, punching group 2, insulation board 3, magnet steel 4, axis hole 5, punching 6.
As Fig. 3, shown in Figure 4, on the outer circumference of described non-magnetic seat 1, be evenly equipped with a plurality of supports 7, the center of non-magnetic seat 1 is provided with for bearings mounted axis hole 5, non-magnetic seat 1 both sides end face is provided with circular insulating board 3, the circular insulating board center is provided with a through hole, and this through hole is identical with described axis hole 5 diameters.
In space between described support 7, be provided with by the stacking punching group 2 that forms of the good punching 6 of multi-disc magnetic conductivity, magnet steel 4 is fixed between each support 7 tops and adjacent punching group 2, between the top pole shoe of adjacent punching group 2, there is interval, make permanent magnetic field to form loop through stator.
As shown in Figure 5, described punching 6 both sides are provided with semicircle gap 1, after punching 6 is stacking, form the semi-circular recesses of punching group 2 both sides, and the projection 8 that described support 7 both sides are provided with the end face semicircular in shape coordinates with described semi-circular recesses, to punching group 2 location.
Described punching 6 both sides also are provided with square gap 2 10, after punching 6 is stacking, form the square groove of punching group 2 both sides, and the groove of adjacent punching group coordinates with described square magnetic steel 4, to magnet steel 4 location.
In described punching 6, also be provided with two screws 11, for the stacking rear formation punching group 2 of punching 6 is carried out to the screw riveted joint.
Described non-magnetic seat is made by aluminium, zinc or nonmetallic materials, has the effect of isolation magnetic circuit, prevent between each magnet steel and each punching group between form magnetic circuit arbitrarily, guarantee to only have between the pole shoe 12 at adjacent punching group top to form magnetic circuit, thereby reduce magnetic loss.
Described punching group 2 forms by multi-disc punching 6 is stacking, while guaranteeing machine operation, is difficult for forming eddy current loss in the punching group.
Described square magnetic steel 4 is permanent magnet, and its two poles of the earth are connected with adjacent punching group 2 respectively, makes adjacent punching group 2 polarity opposite, between the pole shoe 12 of adjacent punching group 2, forms magnetic circuit.
Described insulation board 3 protects for two ends of rotor.
Described magnet steel 4 is surrounded by punching group 2 and non-magnetic seat 1, makes it not affected by the alternating magnetic field in stator winding, not there will be the demagnetization phenomenon; Magnet steel is fixing by punching group 2 simultaneously, in the rotor high-speed rotary course, also can not come off.
The manufacture process of this rotor: first the magnetic conduction punching group that closed assembly is good is placed in mould, by die casting or pour into as a whole, then the insertion magnet steel that applies glue in the magnet steel room, the protection insulation board is pasted at two ends.
DC motor rotor in rotor application above-described embodiment 1 in the direct current machine of the present embodiment, its efficiency is high, long working life, reliability is high.
Obviously, above-described embodiment is only for the utility model example clearly is described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.And these belong to apparent variation or the change that spirit of the present utility model extended out and still are among protection range of the present utility model.
Claims (8)
1. DC motor rotor, it is characterized in that comprising: the non-magnetic seat (1) that is evenly equipped with a plurality of supports (7) on outer circumference, be fixed at punching group (2) in the space between adjacent support (7), be fixed at the magnet steel (4) in the cavity that the sidewall by support (7) end face and adjacent two punching groups (2) forms.
2. DC motor rotor according to claim 1, it is characterized in that: punching (6) both sides in described punching group (2) are provided with semicircle gap one (9), the semi-circular recesses of formation punching group (2) both sides after punching (6) is stacking, described support (7) both sides are provided with the projection (8) of end face semicircular in shape, this projection coordinates with described semi-circular recesses, and punching group (2) is located.
3. DC motor rotor according to claim 1, it is characterized in that: punching (6) both sides in described punching group (2) are provided with square gap two (10), after punching is stacking, form the square groove of punching group both sides, the square groove of adjacent punching group coordinates with described magnet steel (4), and magnet steel is located.
4. DC motor rotor according to claim 1, is characterized in that: between the top pole shoe (12) of adjacent punching group (2), have gap.
5. one of according to claim 1-4 described DC motor rotors, it is characterized in that: described non-magnetic seat (1) both sides end face is provided with circular insulating board (3).
6. one of according to claim 1-4 described DC motor rotors, it is characterized in that: described punching group (2) is by stacking the forming of punching (6) of multi-disc energy magnetic conduction.
7. a direct current machine, is characterized in that: the described DC motor rotor of one of rotor application the claims 1-4 in this direct current machine.
8. a direct current machine, is characterized in that: the described DC motor rotor of one of rotor application the claims 5 in this direct current machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202721481U CN203301269U (en) | 2013-05-20 | 2013-05-20 | Rotor of DC motor and DC motor provided therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202721481U CN203301269U (en) | 2013-05-20 | 2013-05-20 | Rotor of DC motor and DC motor provided therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203301269U true CN203301269U (en) | 2013-11-20 |
Family
ID=49577252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202721481U Expired - Fee Related CN203301269U (en) | 2013-05-20 | 2013-05-20 | Rotor of DC motor and DC motor provided therewith |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203301269U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659939A (en) * | 2015-01-28 | 2015-05-27 | 深圳市良益实业有限公司 | Skewed slot anomalistic permanent magnet synchronous motor |
| CN105048669A (en) * | 2015-08-05 | 2015-11-11 | 日照东方电机有限公司 | Novel embedded rotor of permanent magnet motor and processing method of novel embedded rotor |
| CN107017716A (en) * | 2017-05-16 | 2017-08-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor punching, rotor, motor and rotor punching processing method |
-
2013
- 2013-05-20 CN CN2013202721481U patent/CN203301269U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659939A (en) * | 2015-01-28 | 2015-05-27 | 深圳市良益实业有限公司 | Skewed slot anomalistic permanent magnet synchronous motor |
| CN104659939B (en) * | 2015-01-28 | 2018-05-25 | 深圳市良益实业有限公司 | Skewed slot abnormal shape permanent magnet synchronous motor |
| CN105048669A (en) * | 2015-08-05 | 2015-11-11 | 日照东方电机有限公司 | Novel embedded rotor of permanent magnet motor and processing method of novel embedded rotor |
| CN107017716A (en) * | 2017-05-16 | 2017-08-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor punching, rotor, motor and rotor punching processing method |
| CN107017716B (en) * | 2017-05-16 | 2023-11-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor punching sheet, rotor, motor and rotor punching sheet processing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202488240U (en) | Tangential rotor of rotary motor | |
| CN203911704U (en) | Motor and compressor having motor | |
| CN105048671A (en) | Asymmetric V-shaped rotor punching sheet and built-in permanent-magnetic motor using the same | |
| CN208623420U (en) | A kind of high revolving speed brushless electric motor rotor | |
| CN202405896U (en) | Rotor core and high-efficiency variable-frequency speed regulation permanent magnet synchronous motor with same | |
| CN203301269U (en) | Rotor of DC motor and DC motor provided therewith | |
| CN203674829U (en) | Permanent-magnet motor rotor | |
| EP2763285A3 (en) | Permanent magnet embedded type rotor for rotating electrical machine and rotating electrical machine having permanent magnet embedded type rotor | |
| CN204145239U (en) | Permagnetic synchronous motor and rotor assembly thereof | |
| CN102522865A (en) | Multi-stator arc linear motor capable of reducing torque fluctuation | |
| CN102545433A (en) | Tangential rotor for rotating motor | |
| CN109038897B (en) | Rotor core and motor with same | |
| CN104184284A (en) | Double-magnetic-circuit asynchronous-starting permanent magnet synchronous motor rotor | |
| CN105262254A (en) | Surface-built-in mixed speed-regulating permanent magnet synchronous motor | |
| CN203193469U (en) | Coreless disc-type direct-current brushless motor | |
| CN104617725A (en) | Asynchronous starting type permanent magnetic synchronizing motor of double-rotor structure | |
| CN204145241U (en) | Rotary compressor and external rotor electric machine thereof | |
| CN102684439A (en) | Reverse salient pole permanent magnet synchronous motor | |
| CN103199669B (en) | Heterogeneous Long Distances cylinder type flux suitching type linear electric motors | |
| CN203086308U (en) | Asynchronous starting permanent magnet synchronous motor rotor and permanent magnet motor thereof | |
| CN202652025U (en) | Reverse salient pole permanent magnet synchronous motor | |
| CN204517614U (en) | A kind of novel permanent magnet motor rotor | |
| CN205029532U (en) | Permanent magnetism synchro -driven motor for pure electric vehicles | |
| CN204794632U (en) | Brushless DC motor's stator | |
| CN204231040U (en) | A kind of variable frequency motor stator punching |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20150520 |
|
| EXPY | Termination of patent right or utility model |