CN2666023Y - Thin type DC generator - Google Patents
Thin type DC generator Download PDFInfo
- Publication number
- CN2666023Y CN2666023Y CN 03237733 CN03237733U CN2666023Y CN 2666023 Y CN2666023 Y CN 2666023Y CN 03237733 CN03237733 CN 03237733 CN 03237733 U CN03237733 U CN 03237733U CN 2666023 Y CN2666023 Y CN 2666023Y
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- CN
- China
- Prior art keywords
- direct current
- commutator
- brush
- current machine
- machine according
- 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
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Abstract
The utility model provides a thin direct current motor, essentially consisting of a shell, a rotor component and a back cover component, wherein, the shell comprises a ring shaped high performance permanent magnet and a first high density metal sheet, and the permanent magnet is fixed on the inner wall of the shell. The rotor component comprises a rotary shaft, a commutator and a plurality of circles of armatures fixed on the rotary shaft, and the armatures with a plurality of numbers of windings winded around thereof. The back cover component comprises a back cover body, a brush component and a second high density metal sheet. The back cover body is provided with two brush fixing holes, the brush component comprises two brush sheets and two silver contactors and two brush bases fixed in two brush fixing holes, wherein the winding are electrically connected with the commutator, the two brush sheets with the two silver contactors, and the two silver contactors are electrically connected with the outer power.
Description
Technical field
The utility model relates to a kind of direct current machine, particularly relates to a kind of slim direct current machine.
Background technology
Modern daily consumer electronics generally trends towards compact, also is small and exquisite further such as video reproducing equipment profiles such as CD, VCD and DVD on the market.Accordingly, the drive motors of these electronic equipments also is more miniaturization.
Dc micro-motor on the present market, such motor mainly comprises stator and rotor; Wherein, this stator comprises cylindrical chassis, annular permanent magnet and end cap part again, and this end cap part also has brush assembly of electric; This rotor comprises motor shaft, armature, armature winding, commutator.Electrically connect this brush by positive and negative lead-in wire, from but this motor rotation provides power.
Yet the oneself height of above-mentioned motor is low not enough, this annular permanent magnet, this armature and this armature winding thickness also can further reduce, but tend to run into another difficult problem like this, that is exactly that magnetic field intensity is less than normal, power of motor does not reach requirement yet, thereby can not satisfy the requirement of the high stabilization of speed operation of electronic equipment.
In order to solve an above-mentioned difficult problem, be necessary to provide a kind of oneself height low and slim direct current machine that power is powerful.
Summary of the invention
Main purpose of the present utility model provides a kind of slim direct current machine, and it increases the magnetic field intensity of annular permanent magnet by reducing this armature thickness and this armature winding number of turn, realizes the low and high-revolving slim direct current machine of a kind of motor oneself height.
To achieve these goals, the utility model provides a kind of slim direct current machine, comprising: a casing, this casing include the high-performance permanent and the one first highly dense sheet metal of an annular, and this permanent magnet is fixed on this casing inner wall; One rotor assembly, this rotor assembly include a rotating shaft, are fixed in the commutator in this rotating shaft, the armature that is fixed in the some numbers of turn in this rotating shaft and some winding coils that is wound on this armature; One rear cover body assembly includes a rear cover body body, a brush assembly of electric and one second highly dense sheet metal on this rear cover body assembly; This rear cover body body has two brush fixing holes; This brush assembly of electric comprises two brush plates and two silver medal contact points, and is fixed in two brushgear housings in this two brushes fixing hole; Wherein, this winding coil electrically connects this commutator, and this two brush plate electrically connects this two silver medal contact point, and this two silver medal contact point electrically connects extraneous power supply.
Described slim direct current machine, wherein, this first highly dense sheet metal is arranged in first perforate of this casing circle centre position, and this first highly dense sheet metal circle centre position is provided with one first through hole, and this rotating shaft one end rotates and is inserted in this first through hole.
Described slim direct current machine, wherein, this second highly dense sheet metal is arranged in second perforate of this rear cover body body, and this second highly dense sheet metal circle centre position is provided with one second through hole, and this rotating shaft other end rotates and is inserted in this second through hole.
Described slim direct current machine, wherein, this commutator comprises a commutator glue core and some commutator pole pieces, wherein each winding coil electrically connects two commutator pole pieces.
Described slim direct current machine, wherein, this high-performance permanent adopts the Nd Fe B alloys material.
Described slim direct current machine, wherein, this slim direct current machine is fixed on the frame of an equipment with spot welding or bonding mode.
Described slim direct current machine wherein, is separated with commutator glue core between between each commutator pole piece and this rotating shaft.
Described slim direct current machine, wherein, this two brushgear housings injection moulding is filled in this brush fixing hole.
The slim direct current machine that the utility model provides by reducing this armature thickness and this armature winding number of turn, increases the magnetic field intensity of annular permanent magnet, realizes the low and high-revolving slim direct current machine of a kind of motor oneself height.
Description of drawings
Below in conjunction with accompanying drawing,, will make the technical solution of the utility model and other beneficial effects apparent by embodiment of the present utility model is described in detail.
In the accompanying drawing,
Fig. 1 is the solid combination schematic diagram of the utility model motor main body;
Fig. 2 is the perspective exploded view of the utility model motor case part;
Fig. 3 is the perspective exploded view of the utility model rotor part;
Fig. 4 is the schematic perspective view of the utility model motor back cover portion medial surface.
Embodiment
Please refer to Fig. 1 to shown in Figure 4, Fig. 1 is the solid combination schematic diagram of the utility model motor main body, Fig. 2 is the perspective exploded view of the utility model motor case part, Fig. 3 is the perspective exploded view of the utility model rotor part, and Fig. 4 is the schematic perspective view of the utility model motor back cover portion medial surface.Slim direct current machine of the present utility model comprises: one is tubular casing 1 (see figure 2), a rotor portion 2 (see figure 3)s and a rear cover body 3 (see figure 4)s.
Please refer to shown in Figure 2ly, be the perspective exploded view of the utility model motor case part.This casing 1 inside contains an annular high-performance permanent 4, and the external diameter of this annular high-performance permanent 4 is more smaller than the internal diameter of this casing 1, and the mode of passing through to paste of this annular permanent magnet 4 is fixed in this casing 1; This annular permanent magnet 4 has higher magnetic field intensity.This casing 1 bottom surface circle centre position be provided with a through hole 5, one ring-type high desnity metal sheets 6 just can closely fix with this through hole 5 in, this high desnity metal sheet can be the alcu alloy film of rub resistance, but the 2 high speed rotating frictions of bear rotor part.This bottom of shell also is provided with some louvres 7, dispels the heat effectively when running up in order to be implemented in motor, to prevent motor overheating, prolongs electrical machinery life.
Please refer to shown in Figure 3ly, be the perspective exploded view of the utility model rotor part.This rotor portion 2 includes: the armature 9 of a rotating shaft 8, some numbers of turn, some winding coils 10 and insulating trip 11 up and down.Wherein, one end of the close rear cover body 3 of this rotating shaft 8 is arranged with a commutator, this commutator comprises a commutator glue core 12 and some commutator pole pieces 13, these commutator pole pieces 13 are arranged on this commutator glue core 12 outsides, and each described winding coil 10 all electrically connects with two commutator pole pieces 13.Between each commutator pole piece 13 and this rotating shaft 8 because between be separated with commutator glue core 12 and insulate.This rotating shaft 8 runs through the symmetrical centre of this armature 9, and this armature 9 is electrically insulated in fixing and this rotating shaft 8; These armature 9 top and bottom are coated with this insulating trip 11 up and down, and these winding coils 10 are installed the known rule of motor and are wound on this armature 9.Preferred mode is: armature is the silicon steel sheet with three fan-shaped branches, and the number of turn is three circles.
Please refer to shown in Figure 4ly, be the schematic perspective view of the utility model motor back cover portion.This rear cover body 3 has a body 14 and two brush assembly of electric 15.This outside stamped bumps in circular body 14 home position places, and form a perforate 16, one ring-type high desnity metal sheet 17 just can closely fix with this perforate 16 in, this high desnity metal sheet 17 can be the alcu alloy film of rub resistance, can bear the high speed rotating friction of rotating shaft 8.Also be provided with some louvres 18 on the body 14 of this rear cover body 3, dispel the heat effectively when running up,, prolong electrical machinery life to prevent motor overheating in order to be implemented in motor.Simultaneously, this body 14 also is provided with two brush fixing holes 20, this two brush assembly of electric fixing with this brush fixing hole 20 in; Each brush assembly of electric comprises: a brush plate 21, that electrically connects described commutator pole piece 13 in order to activity is in order to the fixing silver-colored contact point (indicating) that electrically connects external circuitry, and one be used for fixing with this brush fixing hole 20 in brushgear housing 23; These brushgear housing 23 material electric insulation plastic materials, injection moulding is filled in this brush fixing hole 20.Two external circuitry leads 24 electrically connect this two silver medal contact point (not indicating), thereby realize to this slim motor input electric power.
Be inserted in the lower through-hole 16 of this rear cover body 3 by earlier these rotating shaft 8 one ends being rotated, the other end is inserted in the through hole 5 of this casing 1, then that rear cover body 3 is fixing with this casing 1, promptly obtain slim direct current machine of the present utility model, slim direct current machine of the present utility model with spot welding or bonding mode fixing with equipment (CD or VCD driving mechanism etc.) frame on.
For the person of ordinary skill of the art; can make other various corresponding changes and distortion according to the technical solution of the utility model and technical conceive, and all these changes and distortion all should belong to the protection range of the utility model accompanying Claim.
Claims (9)
1, a kind of slim direct current machine is characterized in that, comprising:
One casing, this casing include the high-performance permanent and the one first highly dense sheet metal of an annular, and this permanent magnet is fixed on this casing inner wall;
One rotor assembly, this rotor assembly include a rotating shaft, be fixed in a commutator, in this rotating shaft is fixed in armature and some winding coils that is wound on this armature in this rotating shaft;
One rear cover body assembly includes a rear cover body body, a brush assembly of electric and one second highly dense sheet metal on this rear cover body assembly; This rear cover body body has two brush fixing holes; This brush assembly of electric comprises two brush plates and two silver medal contact points, and is fixed in two brushgear housings in this two brushes fixing hole;
Wherein, this winding coil electrically connects this commutator, movable this two brush plate that electrically connects of this commutator, and this two brush plate electrically connects this two silver medal contact point, and this two silver medal contact point electrically connects extraneous power supply.
2, slim direct current machine according to claim 1, it is characterized in that, this first highly dense sheet metal is arranged in first perforate of this casing circle centre position, and this first highly dense sheet metal circle centre position is provided with one first through hole, and this rotating shaft one end rotates and is inserted in this first through hole.
3, slim direct current machine according to claim 1, it is characterized in that, this second highly dense sheet metal is arranged in second perforate of this rear cover body body, and this second highly dense sheet metal circle centre position is provided with one second through hole, and this rotating shaft other end rotates and is inserted in this second through hole.
4, slim direct current machine according to claim 1 is characterized in that, this commutator comprises a commutator glue core and some commutator pole pieces.
5, slim direct current machine according to claim 4 is characterized in that, is separated with commutator glue core between between each commutator pole piece and this rotating shaft.
6, slim direct current machine according to claim 1 is characterized in that, this high-performance permanent adopts the Nd Fe B alloys material.
7, slim direct current machine according to claim 1 is characterized in that, this slim direct current machine is fixed on the frame of an equipment with spot welding or bonding mode.
8, slim direct current machine according to claim 1 is characterized in that, this two brushgear housings injection moulding is filled in this brush fixing hole.
9, slim direct current machine according to claim 1 is characterized in that, this permanent magnet is fixed on this casing inner wall with bonding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03237733 CN2666023Y (en) | 2003-09-30 | 2003-09-30 | Thin type DC generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03237733 CN2666023Y (en) | 2003-09-30 | 2003-09-30 | Thin type DC generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2666023Y true CN2666023Y (en) | 2004-12-22 |
Family
ID=34326590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03237733 Expired - Fee Related CN2666023Y (en) | 2003-09-30 | 2003-09-30 | Thin type DC generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2666023Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753230A (en) * | 2015-03-09 | 2015-07-01 | 上海大略电机制造有限公司 | Rear cover assembly of permanent magnet direct-current motor |
-
2003
- 2003-09-30 CN CN 03237733 patent/CN2666023Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753230A (en) * | 2015-03-09 | 2015-07-01 | 上海大略电机制造有限公司 | Rear cover assembly of permanent magnet direct-current motor |
| CN104753230B (en) * | 2015-03-09 | 2017-07-18 | 上海大略电机制造有限公司 | Permanent magnet DC motor rear cover assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |