CN201869038U - Series excited machine with reverser - Google Patents
Series excited machine with reverser Download PDFInfo
- Publication number
- CN201869038U CN201869038U CN2010206424870U CN201020642487U CN201869038U CN 201869038 U CN201869038 U CN 201869038U CN 2010206424870 U CN2010206424870 U CN 2010206424870U CN 201020642487 U CN201020642487 U CN 201020642487U CN 201869038 U CN201869038 U CN 201869038U
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- Prior art keywords
- commutator
- outer ring
- rotor
- stator
- commutation
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Abstract
The utility model discloses a series excited machine with a reverser. The series excited machine comprises a front end cover (1), a rear end cover (2), a stator and a rotor, wherein the stator comprises a stator core (3) and stator windings (4); the rotor comprises a rotor core, a rotor winding (5), a rotating shaft (6) and the reverser; the reverser comprises a commutator (7) which is arranged on the rotor and a reversing device which is arranged in the front end cover; the reversing device comprises an outer reversing ring (8), a rolling guide (9), a retaining frame (10) and a pair of contact guide sheets (11); the rolling guide is annularly and uniformly distributed between the outer reversing ring (8) and the commutator (7); the rolling guide is positioned in the retaining frame; the contact guide sheet is embedded in an inner annular surface of the outer reversing ring; wires led out of the pair of contact guide sheets respectively are connected in series with the stator winding (4) respectively. By using the series excited machine, loss of the commutator is reduced, service life of the motor is prolonged, and noise is very small.
Description
Technical field:
The utility model relates to machine field, specifically is a kind of series machine that has commutator.
Background technology:
Motor product has or not field power supply can be divided into two classes based on rotor: a class is the induction machine that rotor does not have field power supply, and induction machine is by the rotary inductive magnetic field of the excitation winding generation of stator, and the loop coil of cutting rotor drives the rotor rotation; Another kind of is the motor that rotor has field power supply, and as series machine, the field power supply of rotor need be realized the rotor sense of current in the Switch Rotor coil when rotated by commutator, realizes the continuous rotation of rotor.
Series machine belongs to the motor that rotor has field power supply, because its control circuit is simple, speed adjustable range is big, just can realize unique advantages such as stepless time adjustment by control voltage, be widely used in electric tool and household electrical appliance, as roller washing machine, dust catcher etc.Along with popularizing of household electrical appliance, the prospect of this motor is increasing.
Series machine generally all has commutator, its stator winding and rotor windings in series.As shown in Figure 1 and Figure 2, described series machine comprises stator, rotor, front end housing (30) and rear end cap (60) composition, stator is made up of stator core (51) and the stator winding (52), (53) that are wound on the stator core (51), its effect is to produce magnetic flux, magnetic conduction and support front and rear cover; Rotor is made up of rotor core, rotor winding (40), rotating shaft (41) and commutator (10), and its effect is to guarantee and produce continuous electromagnetic torque, drives the load acting by rotating shaft, and electric energy is converted into mechanical energy; Support rotor is played in front and rear cover (30), (60), and stator and rotor are linked fixedly all-in-one-piece effect.Have in the general forward and backward end cap and roll or sliding bearing (20); Commutator (10) generally is made up of commutator (11) and a pair of commutating brush device (70), (80), generally be provided with brush plate (71) and spring (72) in the commutating brush device, spring (72) can keep brush plate (72) even also can closely contact with commutator (11) having under the situation of wearing and tearing.
Series machine can connect power of alterating and direct current, with the direct current is example, external direct current is through upper stator winding (53), produce the magnetic field of certain orientation, enter commutator (11) by a brush plate then, by the copperhead on the commutator (11), rotor winding (40) is divided into the two-way parallel branch, enter bottom stator winding (52) via the another one brush plate, two strands of windings of stator produce the electromagnetic field of equidirectional up and down, under the effect of the electromagnetic field that stator winding produces, the rotor winding that feeds electric current is produced power, and drive the rotor rotation, the copperhead of epitrochanterian commutator (11) is at a pair of commutating brush device (70), (80) under the switching effect, remain two-way parallel connection in the rotor winding the electric current symmetry, continuously, the flow direction that keeps rotor to produce is constant, rotates thereby make rotor produce continuously.
Because what existing series machine adopted is the brush plate of carbon brush formula, there is the defective of two aspects in this commutating brush device: on the one hand, when rotor high-speed rotates, brush plate is in the enterprising line slip friction of commutator, produce a kind of high frequency noise, this high frequency noise motor uses on household electrical appliance, can't adapt to the demand that day by day improve of people to quality of the life; On the other hand, when rotor high-speed rotated, brush plate was in the enterprising line slip friction of commutator, and brush plate and commutator are easy to generate quick wearing and tearing, and the life-span of brush plate and commutator is short.
The utility model content:
The technical problems to be solved in the utility model is, a kind of series machine that has commutator that noise is little, parts depreciation is little when commutation is provided, and promptly adopts rolling friction to replace sliding friction to solve the defective of above-mentioned prior art.
Technical solution of the present utility model is, the series machine that has commutator of following structure is provided, and comprises front end housing, rear end cap, stator and rotor, is separately installed with bearing in the described front and rear cover; Described stator comprises that stator core and at least one pair of are wound in the stator winding of stator core, and stator is fastenedly connected front and rear cover by securing member; Rotor comprises rotor core, rotor winding, rotating shaft and commutator, and described commutator comprises and is arranged at epitrochanterian commutator and is arranged at reversing arrangement in the front end housing; Described rotor winding is by multiply coils loop series connection, and draws a tap respectively at each series connection stomion, and with commutator on each corresponding copperhead connection.
Described reversing arrangement comprises that commutation outer ring, rolling guide, retainer contact guide card with at least one pair of, described commutation outer ring is installed in the front end housing, described rolling guide annular is evenly distributed between commutation outer ring and the commutator, described rolling guide be positioned at can be spacing to the rolling guide retainer; Described contact guide card is inlaid on the inner ring surface of commutation outer ring, respectively draws a lead on each contact guide card, and described lead is connected with the stator winding of series machine respectively.
Adopt after the above structure compared with prior art, the utlity model has following advantage: adopt the utility model, when commutator commutates, commutator is under the drive of rotor, along with rotor high-speed rotates, rolling friction between commutator and the rolling guide, electric current can contact guide card through one from an end of stator winding, enter the rotor winding by being in the rolling guide that this contact guide card arc draws together in the scope, through the rotor winding after draw together rolling guide in the scope by another contact guide card arc, arrive another contact guide card, enter the other end of stator winding at last, thereby realization motor commutation, change sliding friction between prior art brush plate and the commutator and be the rolling friction between commutator of the present utility model and the rolling guide, reduced the loss of commutator, prolonged the useful life of motor, and the noise that rolling friction produces is very little, has improved motor properties.
As improvement, described series machine also comprises dustproof limited cover, and described dustproof limited cover is fixed on the lateral surface of commutation outer ring, like this, can be spacing to retainer, prevent that retainer from producing axial displacement, also can play the dustproof effect.
As improvement, described dustproof limited cover is provided with a plurality of projectioies, described a plurality of projection is arranged in the position between dustproof limited cover 13 and the retainer, like this, and to retainer when spacing, if there is not projection, when limited cover is prevented dust in the retainer touching, between the two be the face contact, stuck easily, and after being provided with projection, stuck phenomenon can not appear.
As improvement, described commutation outer ring is a loop configuration, and the outer ring surface and the front end housing of commutation outer ring are provided with the anti-rotation structure that cooperatively interacts, and like this, can prevent to commutate outer ring and front end housing relatively rotate.
As improvement, described anti-rotation structure is the location cotter way that is separately positioned on commutation outer ring and front end housing, is provided with alignment pin in the cotter way of described location, and outer ring stressed rotation in front end housing like this can prevent to commutate.
As improvement, the inner ring surface of described commutation outer ring is a taper surface, and the contact-making surface of described commutator and rolling guide also is a taper surface, and its tapering is consistent with the tapering of the inner ring surface of commutation outer ring, adopts this structure to be convenient to very much assembling.
As improvement, be provided with an elastic washer between described commutation outer ring and the front end housing, like this, the elastic washer exchange has certain pre-thrust to the outer ring, thereby can eliminate the end-play between commutation outer ring, retainer, the commutator, make commutation outer ring, rolling guide, commutator closely contact, and at commutation outer ring, rolling guide, can eliminate the gap that produces because of wearing and tearing when there are wearing and tearing in commutator, solve because of existing the gap to produce the problem of poor flow between commutation outer ring, rolling guide, the commutator.
As improvement, commutator comprises copperhead and skeleton, copperhead on the described commutator is a laminated structure, and be embedded in the commutator skeleton, the bus of the taper surface of described copperhead and commutator is angled arranges, and like this, the rolling guide can not be rolled in the gap between the adjacent copperhead, reduce the noise of commutator when running, improved reliability of the present utility model.
As improvement, being shaped as of described contact guide card is fan-shaped, described fan-shaped angle is greater than the angle between the two adjacent rolling guides, the center that angle between the described two adjacent rolling guides is meant two rolling guides is to angle that rotor center became, like this, can guarantee to contact guide card and contact with a rolling guide at least, improve performance of the present utility model.
Description of drawings:
Fig. 1 is the structural representation that the employing brush plate of prior art is realized the series machine of commutation.
Fig. 2 is the side sectional view that the employing brush plate of prior art is realized the series machine of commutation.
Fig. 3 is the front section view that has the series machine of commutator of the present utility model.
Fig. 4 is the side sectional view that has the series machine of commutator of the present utility model.
Fig. 5 is the structure enlarged drawing of the utility model commutator.
The structural representation that Fig. 6 arranges for the utility model copperhead.
Shown in the figure: 1, front end housing, 2, rear end cap, 3, stator core, 4, stator winding, 5, the rotor winding, 6, rotating shaft, 7, commutator, 8, the commutation outer ring, 9, the rolling guide, 10, retainer, 11, the contact guide card, 12, lead, 13, dustproof limited cover, 14, projection, 15, alignment pin, 16, elastic washer, 17, copperhead, 18, skeleton.
Embodiment:
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
As shown in the figure, the series machine that has commutator of the present utility model comprises front end housing 1, rear end cap 2, stator and rotor, is separately installed with bearing in the described front and rear cover; Described stator comprises stator core 3 and a pair of stator winding 4 that is wound in stator core, and stator is fastenedly connected front and rear cover by securing member; Rotor comprises rotor core, rotor winding 5, rotating shaft 6 and commutator, and described commutator comprises and is arranged at epitrochanterian commutator 7 and is arranged at reversing arrangement in the front end housing; Described rotor winding 5 is by multiply coils loop series connection, and draws a tap respectively at each series connection stomion, and with commutator 7 on each corresponding copperhead connection.
Described reversing arrangement comprises commutation outer ring 8, rolling guide 9, retainer 10 and a pair of guide card 11 that contacts, described commutation outer ring 8 is installed in the front end housing 1, described rolling guide 9 annulars are evenly distributed between commutation outer ring 8 and the commutator 7, described rolling guide 9 be positioned at can be spacing to rolling guide 9 retainer 10; Described contact guide card 11 is inlaid on the inner ring surface of commutation outer ring 8, respectively draws a lead 12 on each contact guide card 11, and described lead 12 is connected with the stator winding 4 of series machine respectively.
Described stator winding 4 comprises stator winding up and down, and the lead of one of them contact guide card is connected with the coil of last stator winding, and the lead of another contact guide card is connected with the coil of following stator winding; Described contact guide card contacts with the rolling guide, and mutual conduction, and the acting in conjunction of contact guide card and rolling guide is equivalent to the effect of brush of the prior art; In addition, series machine can be divided into the difference of the logarithm of stator coil, is divided into not at the same levelly, and said structure is equivalent to secondary, if stator winding be two pairs the time, be exactly the level Four series machine, contact guide card this moment also needs two pairs, the lead on it is connected with stator winding.
Described series machine also comprises dustproof limited cover 13, and described dustproof limited cover 13 is fixed on the lateral surface of commutation outer ring 8; 13 1 ring covers of described dustproof limited cover, it just blocks retainer near circle centre position, can be to keeping erecting position-limiting action.
Described dustproof limited cover is provided with a plurality of protruding 14, and described a plurality of projectioies are arranged in the position between dustproof limited cover 13 and the retainer, promptly can be arranged into a circle.
Described commutation outer ring 8 is a loop configuration, and the outer ring surface and the front end housing 1 of commutation outer ring 8 are provided with the anti-rotation structure that cooperatively interacts.
Described anti-rotation structure is the location cotter way that is separately positioned on commutation outer ring 8 and front end housing 1, is provided with alignment pin 15 in the cotter way of described location.
The inner ring surface of described commutation outer ring 8 is a taper surface, and described commutator 7 also is a taper surface with the contact-making surface of rolling guide 9, and its tapering is consistent with the tapering of the inner ring surface of commutation outer ring 8.
Be provided with an elastic washer 16 between described commutation outer ring 8 and the front end housing 1.
Commutator comprises copperhead 17 and skeleton 18, and the copperhead 17 on the described commutator is a laminated structure, and is embedded in the commutator skeleton 18, angled the arranging of bus of the taper surface of described copperhead 17 and commutator.
Being shaped as of described contact guide card 11 is fan-shaped, and described fan-shaped angle is greater than the angle between the two adjacent rolling guides 9, and the center that the angle between the described two adjacent rolling guides is meant two rolling guides is to angle that rotor center became.
Claims (9)
1. a series machine that has commutator comprises front end housing (1), rear end cap (2), stator and rotor, is separately installed with bearing in the described front and rear cover; Described stator comprises that stator core (3) and at least one pair of are wound in the stator winding (4) of stator core, and stator is fastenedly connected front and rear cover by securing member; Rotor comprises rotor core, rotor winding (5), rotating shaft (6) and commutator, and described commutator comprises and is arranged at epitrochanterian commutator (7) and is arranged at reversing arrangement in the front end housing; Described rotor winding (5) is connected by the multiply coils loop, and draw a tap respectively at each series connection stomion, and each copperhead connection upward corresponding with commutator (7), it is characterized in that: described reversing arrangement comprises commutation outer ring (8), rolling guide (9), retainer (10) contacts guide card (11) with at least one pair of, described commutation outer ring (8) is installed in the front end housing (1), described rolling guide (9) annular is evenly distributed between commutation outer ring (8) and the commutator (7), described rolling guide (9) be positioned at can be spacing to rolling guide (9) retainer (10); Described contact guide card (11) is inlaid on the inner ring surface of commutation outer ring (8), respectively draws a lead (12) on each contact guide card (11), and described lead (12) is connected with the stator winding (4) of series machine respectively.
2. the series machine that has commutator according to claim 1 is characterized in that: described series machine also comprises dustproof limited cover (13), and described dustproof limited cover (13) is fixed on the lateral surface of commutation outer ring (8).
3. the series machine that has commutator according to claim 2, it is characterized in that: described dustproof limited cover (13) is provided with a plurality of projectioies (14), and described a plurality of projectioies (14) are arranged in the position between dustproof limited cover (13) and the retainer (10).
4. the series machine that has commutator according to claim 1 is characterized in that: described commutation outer ring (8) is a loop configuration, and the outer ring surface and the front end housing (1) of commutation outer ring (8) are provided with the anti-rotation structure that cooperatively interacts.
5. the series machine that has commutator according to claim 4 is characterized in that: described anti-rotation structure is provided with alignment pin (15) for being separately positioned on the location cotter way of commutation outer ring (8) and front end housing (1) in the cotter way of described location.
6. the series machine that has commutator according to claim 1, it is characterized in that: the inner ring surface of described commutation outer ring (8) is a taper surface, described commutator (7) also is a taper surface with the contact-making surface of rolling guide (9), and its tapering is consistent with the tapering of the inner ring surface of commutation outer ring (8).
7. the series machine that has commutator according to claim 1 is characterized in that: be provided with an elastic washer (16) between described commutation outer ring (8) and the front end housing (1).
8. according to claim 1 or the 6 described series machines that have commutator, it is characterized in that: commutator comprises copperhead (17) and skeleton (18), copperhead on the described commutator (17) is a laminated structure, and be embedded in the commutator skeleton (18) angled the arranging of bus of the taper surface of described copperhead (17) and commutator.
9. the series machine that has commutator according to claim 1, it is characterized in that: being shaped as of described contact guide card (11) is fan-shaped, described fan-shaped angle is greater than the angle between the two adjacent rolling guides (9), and the center that the angle between the described two adjacent rolling guides is meant two rolling guides is to angle that rotor center became.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206424870U CN201869038U (en) | 2010-11-30 | 2010-11-30 | Series excited machine with reverser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206424870U CN201869038U (en) | 2010-11-30 | 2010-11-30 | Series excited machine with reverser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201869038U true CN201869038U (en) | 2011-06-15 |
Family
ID=44140181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206424870U Expired - Fee Related CN201869038U (en) | 2010-11-30 | 2010-11-30 | Series excited machine with reverser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201869038U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005864A (en) * | 2010-11-30 | 2011-04-06 | 中国计量学院 | Series excited motor with reverser |
-
2010
- 2010-11-30 CN CN2010206424870U patent/CN201869038U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005864A (en) * | 2010-11-30 | 2011-04-06 | 中国计量学院 | Series excited motor with reverser |
| CN102005864B (en) * | 2010-11-30 | 2012-08-01 | 中国计量学院 | Series excited motor with reverser |
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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: 20110615 Termination date: 20121130 |