CN206211805U - Direct current generator - Google Patents

Direct current generator Download PDF

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Publication number
CN206211805U
CN206211805U CN201621344623.1U CN201621344623U CN206211805U CN 206211805 U CN206211805 U CN 206211805U CN 201621344623 U CN201621344623 U CN 201621344623U CN 206211805 U CN206211805 U CN 206211805U
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CN
China
Prior art keywords
brush
direct current
current generator
assembly
winding
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Active
Application number
CN201621344623.1U
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Chinese (zh)
Inventor
梁显堂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Guangdong Midea Consumer Electric Manufacturing Co Ltd
Guangdong Midea Life Electric Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea Consumer Electric Manufacturing Co Ltd
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Priority to CN201621344623.1U priority Critical patent/CN206211805U/en
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Publication of CN206211805U publication Critical patent/CN206211805U/en
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Abstract

The utility model is related to machine field, disclose a kind of direct current generator, wherein, the direct current generator includes rotor assembly (10), field frame assembly (20) and the bracket assembly (30) for encapsulating the rotor assembly (10) and field frame assembly (20), the rotor assembly (10) includes the brush (13) that is provided with magnetic shoe (16) rotor subject He be installed on the rotor subject, the field frame assembly (20) includes stator core (21) and winding (22), the winding (22) is relative to the stator core (21) insulated fixation, the direct current generator also includes the commutator (23) electrically connected with the winding (22), the commutator (23) is fixed on the field frame assembly (20) or the bracket assembly (30).Direct current generator of the present utility model, winding is arranged in field frame assembly, so as to produce rotating excitation field by field frame assembly.

Description

Direct current generator
Technical field
The utility model is related to machine field, in particular it relates to a kind of direct current generator.
Background technology
The structure of existing direct current generator is usually situation as shown in Figure 1 to Figure 3, i.e. direct current generator includes that rotor is total Into 10, field frame assembly 20 and bracket assembly 30, wherein:Rotor assembly 10 includes rotating shaft 11, rotor core 12, the and of rotor windings 15 Commutator 23, rotor core 12 and rotor windings 15 are insulated is installed on rotating shaft 11, rotor windings 15 and commutator 23 are electrically connected; Bracket assembly 30 includes upper bracket 31 ' and lower bracket 32 ', is provided with lower bracket 32 ' for being contacted with commutator 23 Brush 13.When using, rotating excitation field is produced by the rotor windings 15 of rotor assembly 10.Wherein, rotor assembly 10 does at a high speed Rotation, this can cause many problems, and such as commutator 23 easily departs from high-speed rotation and installs and produce " film flying " problem, with And rotor windings 15 easily loosen under high-speed rotation or displacement and cause that the amount of unbalance of rotor assembly 10 is big, vibration is big etc. and ask Topic.Additionally, in this configuration, it is the ovality and commutator segment with appropriate curved surface, but after turning that commutator 23 needs turning Between bounce it is big, so as to cause direct current generator spark big and easily with the friction of brush 13 produce noise.In addition, such as the institutes of Fig. 2 and 3 Show, in this traditional structure, brush 13 is contacted with commutator 23 by arc surface, brush 13 needs operation with commutator 23 It is lot more time to complete break-in.In addition, the rotation direction of commutator 23 is single, if double steering, then brush can be produced The noise of 13 bounces, brush 13 can be derived with brush if by reducing the gap between brush 13 and brush set to improve the problem The stuck problem of set.Also, static brush 13 is unfavorable for distributing for heat, it is easily caused brush 13 or brush carrier is damaged.This Outward, this traditional direct current generator usually the two poles of the earth (i.e. magnetic pole of the stator is a pair) for being used on such as household electrical appliances, preferably at most four Pole, to this direct current generator is made multipole, then needs the package size to be made very big, it is difficult to meet household appliances miniaturization It is required that.
Utility model content
The purpose of this utility model is to provide a kind of direct current generator, to provide a kind of different direct current generator mode of operation.
To achieve these goals, the utility model provides a kind of direct current generator, wherein, the direct current generator includes rotor Assembly, field frame assembly and the bracket assembly for encapsulating the rotor assembly and field frame assembly, the rotor assembly include being provided with The rotor subject of magnetic shoe and the brush for being installed on the rotor subject, the field frame assembly include stator core and winding, described Winding relative to the stator core insulation it is fixed, the direct current generator also includes the commutator that is electrically connected with the winding, The commutator is fixed on the field frame assembly or the bracket assembly.
Preferably, the rotor subject includes rotating shaft and rotor core, and the rotor assembly includes brush carrier, the brush It is arranged in the rotating shaft by the brush carrier.
Preferably, the brush carrier is straight type structure, and the rotating shaft is set through the brush carrier.
Preferably, the direct current generator includes the first brush and the second brush, and first brush and the second brush are set It is different from the distance of the axis of the rotating shaft, the bracket assembly includes that the two ends respectively from the direct current generator are packaged First support and second support, one end of first brush and one end of the second brush be oppositely arranged with the commutator, The other end of first brush and the other end of the second brush are oppositely arranged with the first support, and the first support is set There is the first conducting ring electrically connected with the other end of first brush and electrically connected with the other end of second brush Two conducting rings.
Preferably, first conducting ring and the second conducting ring by can along the rotating shaft be adjusted axially position in the way of It is installed on the first support.
Preferably, the first support includes rack body and conducting ring mounting bracket, and first conducting ring and second is led Electric ring is installed on the rack body by the conducting ring mounting bracket, and the conducting ring mounting bracket is connected to institute by screw tightening Rack body is stated, spring is arranged with the outside of the screw tightening.
Preferably, the field frame assembly includes being installed on the installation portion of the ring-type on the inside of the stator core, the installation Portion is provided with along the winding section being radially arranged of the installation portion, and the winding is arranged on the winding section.
Preferably, the commutator is set to and the brush plane contact.
Preferably, the direct current generator includes multiple commutators, and it is fan that each described commutator is set to cross section The bulk of annular, multiple commutators are circumferentially disposed on the installation portion and split is cyclic structure, the commutator By the end face and the brush contact of fanning annular.
Preferably, the direct current generator includes winding at least described in two groups, and winding described in every group forms an electrode.Pass through Above-mentioned technical proposal, winding is arranged in field frame assembly, so as to produce rotating excitation field by field frame assembly.Also, by that will change It is arranged in field frame assembly to device, it is to avoid commutator does caused by high-speed rotation " film flying " in the prior art.Further, since Winding is not set on rotor assembly, it is to avoid rotor windings easily loosen under the high-speed rotation or displacement and cause to turn in the prior art The problems such as sub- assembly amount of unbalance is big, vibration is big, and allow direct current generator of the present utility model that multiple electrodes are set.Meanwhile, electricity Brush is arranged on rotor assembly and is conducive to by rotating improvement radiating.
Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is further understood to of the present utility model for providing, and constitutes a part for specification, and following Specific embodiment be used to explain the utility model together, but do not constitute to limitation of the present utility model.In the accompanying drawings:
Fig. 1 is the structure chart of the direct current generator of prior art, and left side is the main sectional view of direct current generator, and right side is partial side Sectional view;
Fig. 2 is the schematic diagram of rotor assembly in Fig. 1;
Fig. 3 is the schematic diagram of Fig. 1 medium-height trestle assemblies, and left side is the top view of upper bracket;Bowed for lower bracket on right side View;
Fig. 4 is a kind of stereogram of implementation method of direct current generator of the present utility model;
Fig. 5 is the front view of Fig. 4;
Fig. 6 and Fig. 7 are the explosive views of the different directions observation of Fig. 4;
Fig. 8 is the explosive view of Fig. 5;
Fig. 9 is the stereogram of rotor assembly in Fig. 4;
Figure 10 is the front view of Fig. 9;
Figure 11 is the stereogram of field frame assembly in Fig. 4;
Figure 12 is the top view of Figure 11;
Figure 13 is the stereogram of first support in Fig. 4;
Figure 14 is the top view of the first support of Figure 13;
Figure 15 is the side view of the first support of Figure 13.
Description of reference numerals
10- rotor assemblies, 11- rotating shafts, 12- rotor cores, 13- brushes, the brushes of 13a- first, the brushes of 13b- second, 14- Brush carrier, 15- rotor windings, 16- magnetic shoes, 20- field frame assemblies, 21- stator cores, 22- windings, 23- commutators, 24- is installed Portion, 24a- winding sections 30- bracket assemblys, 31- first supports, 31a- rack bodies, 31 '-upper bracket, 32 '-lower bracket, 32- second supports, the conducting rings of 33- first, the conducting rings of 34- second, 35- conducting ring mounting brackets, 36- screw tightenings, 37- springs, 38- Assembling structure, 39- boss.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein Described specific embodiment is merely to illustrate and explains the utility model, is not limited to the utility model.
In the utility model, in the case where opposite explanation is not made, the noun of locality for using such as " upper and lower, left and right " is generally Refer to the upper and lower, left and right shown in refer to the attached drawing;" inside and outside " refers to the inside and outside of the profile relative to each part in itself.
The utility model provides a kind of direct current generator, wherein, the direct current generator includes rotor assembly 10, field frame assembly 20 With the bracket assembly 30 for encapsulating the rotor assembly 10 and field frame assembly 20, the rotor assembly 10 is including being provided with magnetic shoe 16 Rotor subject and be installed on the brush 13 of the rotor subject, the field frame assembly 20 includes stator core 21 and winding 22, Relative to the insulated fixation of the stator core 21, the direct current generator also includes being electrically connected with the winding 22 winding 22 Commutator 23, the commutator 23 is fixed on the field frame assembly 20 or the bracket assembly 30.
In the utility model, winding 22 is arranged in field frame assembly 20, so as to produce rotating excitation field by field frame assembly 20. It is entirely different that this produces rotating excitation field with traditional rotor assembly 10, and can solve the problem that traditional rotor assembly 10 is produced Many technical problems that rotary magnetic place is brought.
Specifically, in by the way that commutator 23 is arranged on into field frame assembly 20 or bracket assembly 30, it is to avoid in the prior art Commutator 23 is done caused by high-speed rotation " film flying ".Further, since do not set winding on rotor assembly 10, it is to avoid prior art Middle rotor windings easily loosen or displacement and the problems such as cause that rotor assembly amount of unbalance is big, vibrate big under high-speed rotation.This Outward, because winding 22 is arranged on field frame assembly 20, this reality will not be hence allowed to because of the size and weight of increase rotor assembly 10 Four or more electrode is set with new direct current generator, and package size can be reduced, be conducive to direct current generator small Type, flattening.Meanwhile, brush 13 is arranged on rotor subject, can be conducive to leading to the synchronous rotary of rotor assembly 10 Crossing rotation improves radiating and noise reduction.
In the utility model, according to the form of rotor subject, brush 13 can be installed on rotor main by appropriate mode Body.Preferably, as shown in Figure 9 and Figure 10, the rotor subject includes rotating shaft 11 and rotor core 12, and the rotor assembly 10 is wrapped Brush carrier 14 is included, the brush 13 is arranged in the rotating shaft 11 by the brush carrier 14.Wherein, brush carrier 14 can be used Various appropriate forms are simultaneously accordingly installed to rotating shaft 11.For example, in the implementation method shown in Fig. 9 and Figure 10, the brush carrier 14 is straight type structure, and the rotating shaft 11 is set through the brush carrier 14.
In addition, magnetic shoe 16 can be provided with rotor core 12, so that with magnetic, such as described magnetic shoe 16 can be permanent magnetism Iron.Wherein, as shown in figure 9, magnetic shoe 16 can be two or more and be arranged on end to end on the end face of rotor core 12, Or circumference is integrally provided on the end face of rotor core 12.
In addition, to form current loop, the direct current generator includes the first brush 13a and the second brush 13b with right respectively Positive pole and negative pole are answered, for ease of providing electric current, the first brush 13a and second by the first brush 13a and the second brush 13b Brush 13b be set to it is different from the distance of the axis of the rotating shaft 11, the bracket assembly 30 include respectively from the direct current First support 31 and second support 32 that the two ends of machine are packaged, one end of the first brush 13a and the second brush 13b's One end is oppositely arranged with the commutator 23, the other end of the first brush 13a and the other end of the second brush 13b with it is described First support 31 is oppositely arranged, and the first support 31 is provided with first electrically connected with the other end of the first brush 13a Conducting ring 33 and the second conducting ring 34 electrically connected with the other end of the second brush 13b.Thus, in the first brush 13a and When second brush 13b rotates with rotor assembly 10, can be electric with first respectively by the first conducting ring 33 and the second conducting ring 34 Brush 13a and the second brush 13b is turned on and is formed loop all the time.
Wherein it is preferred to, the conducting ring 34 of first conducting ring 33 and second with can along the rotating shaft 11 axial direction adjust The mode for saving position is installed on the first support 31.Thus, when brush 13 weares and teares, can be conductive by regulation first The axial location of the conducting ring 34 of ring 33 and second remains the contact with the first brush 13a and the second brush 13b.
Therefore, those skilled in the art can realize that the first conducting ring 33 and second is conductive using various appropriate structures The axial location regulation of ring 34.In preferred embodiment of the present utility model, as shown in FIG. 13 to 15, the first support 31 include rack body 31a and conducting ring mounting bracket 35, and the conducting ring 34 of first conducting ring 33 and second is by the conduction Ring mounting bracket 35 is installed on the rack body 31a, and the conducting ring mounting bracket 35 is connected to the support by screw tightening 36 Main body 31a, the outside of the screw tightening 36 is arranged with spring 37.When brush 13 weares and teares, can be by adjusting screw tightening 36 The axial location of screw-in degree adjusting bracket main body 31a, it is possible to rack body 31a is compressed by spring 34 such that it is able to mend Repay the abrasion of brush 13, it is ensured that the first conducting ring 33 and the second conducting ring 34 are contacted with corresponding brush 13 all the time.
In addition, first support 31 and second support 32 can be connected to each other by various appropriate modes and set corresponding Positioning and mounting structure, with encapsulated rotor assembly 10 and field frame assembly 20.As shown in Fig. 4 to Fig. 8, first support 31 and second support 32 could be arranged to the reeded structure of tool that is generally corresponding to, and by setting corresponding assembling structure 38 on the outer periphery each other Fixed, field frame assembly 20 can be positioned by groove.First support 31 passes through the first conducting ring 33 and the second conducting ring 34 and phase The brush 13 answered is contacted, and the middle part of second support 32 can be provided with for the boss 39 of located stator assembly 20 and through convex The through hole that the permission rotating shaft 11 of platform 39 is passed through, so that the traversing through end of rotating shaft 11 is connectable to required device.
In addition, in the utility model, field frame assembly 20 could be arranged to appropriate form, to set winding 22.It is preferred that Ground, as is illustrated by figs. 11 and 12, the field frame assembly 20 includes the installation portion of the ring-type for being installed on the inner side of the stator core 21 24, the installation portion 24 is provided with along the winding section 24a being radially arranged of the installation portion 24, and the winding 22 is arranged on described On the 24a of winding section.Wherein, winding section 24a radially-inwardly can be highlightedly integrally formed on installation portion 24.
Further, since commutator 23 is arranged in field frame assembly 20 or bracket assembly 30, without rotating, thus without setting Curved surface of the prior art, it is to avoid the error of turnery processing and thus caused friction noise.
In addition, this also allows to change the way of contact of shape and commutator 23 with brush 13 of commutator 23.Preferably, The commutator 23 is set to and the plane contact of the brush 13.Thus, it is possible to avoid commutator 23 and brush in the prior art 13 are contacted and thus caused long-time break-in by arc surface.
By the way that commutator 23 to be set to the contact surface (i.e. the end face of commutator 23) with plane, on the one hand it is easy to processing This commutator 23, on the other hand can well control the flatness and roughness of the contact surface in process, make to change Keep the good contact of stabilization to device 23 and brush 13, it is to avoid the Machining of Curved Surface and state modulator of existing commutator are run into Problem (such as ovality is bad, roughness is big).
To realize the plane contact of commutator 23 and brush 13, can be with the construction and arrangement side of relative set commutator 23 Formula.Specifically, as a example by commutator 23 is arranged on field frame assembly 20, as is illustrated by figs. 11 and 12, the direct current generator bag Multiple commutators 23 are included, each described commutator 23 is set to the bulk that cross section is fan annular, multiple commutators 23 be circumferentially disposed on the installation portion 24 and split be cyclic structure, the commutator 23 by fan annular end face and institute Brush 13 is stated to contact.Wherein, commutator 23 may be mounted at the inner side of installation portion 24, and form central through hole by split, with Rotating shaft 11 is allowed to pass through.It is of course also possible to as needed, commutator 23 is arranged on into bracket assembly 30 by the arrangement being similar to On, for example it is arranged in first support 31, to be contacted with brush 13, correspondingly, the first conducting ring 33 and second can be led Electric ring 34 is arranged on field frame assembly 20.
Wherein, as needed, the block thickness of commutator 23 can be set.For example, the height to reduce direct current generator as far as possible Degree size, makes direct current generator more flattening, and the thickness of commutator 23 can reduce and form sheet form.In addition, as above institute State, because winding 22 is arranged on field frame assembly 20, it is allowed to set four or more electrode.It is therefore preferred that described straight Stream motor includes winding 22 at least described in two groups, and winding 22 described in every group forms an electrode.When set four groups or more groups around During group 22, direct current generator of the present utility model is that may include four or more electrodes.
Additionally, being arranged on field frame assembly 20 by by winding 22, increase without being rotated with rotor as prior art Loading, without increase package size for this.Conversely, direct current generator of the present utility model can be maximum by the utilization rate of material Change, and reduce package size, be conducive to being made the direct current generator of smaller more flattening.
Below in conjunction with the accompanying drawings, the operation of direct current generator of the present utility model is illustrated.
When direct current generator of the present utility model is used as motor, rotating shaft 11 connects the input of driven device Axle.Powered and by commutator 23 by the first conducting ring 33 and the second conducting ring 34 couples of the first brush 13a and the second brush 13b Contact with brush 13 forms loop, is powered with to winding 22, and winding 22 can form rotating excitation field so that the energy of rotor assembly 10 It is enough to be rotated centered on the axis of rotating shaft 11, and contacted with static commutator 23 by the brush 13 of rotation in rotary course Turn on the power supply to different windings 22.
Conversely, when direct current generator of the present utility model is used as generator, rotating shaft 11 connects the output shaft of drive device, and Under the drive of drive device rotate so that cutting magnetic line and by winding 22 produce induced electromotive force, by rotation electricity Brush 13 and the static contact of commutator 23 are turned on and by the first conducting ring 33 and the output current of the second conducting ring 34.
Preferred embodiment of the present utility model is described in detail above in association with accompanying drawing, but, the utility model is not limited Detail in above-mentioned implementation method, in range of the technology design of the present utility model, can be to skill of the present utility model Art scheme carries out various simple variants, and these simple variants belong to protection domain of the present utility model.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance In the case of shield, can be combined by any suitable means.In order to avoid unnecessary repetition, the utility model is to each Possible combination is planted no longer separately to illustrate.
Additionally, can also be combined between a variety of implementation methods of the present utility model, as long as it is not disobeyed Thought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.

Claims (10)

1. a kind of direct current generator, it is characterised in that the direct current generator includes rotor assembly (10), field frame assembly (20) and is used for The bracket assembly (30) of the rotor assembly (10) and field frame assembly (20) is encapsulated, the rotor assembly (10) is including being provided with magnetic shoe (16) rotor subject and the brush (13) for being installed on the rotor subject, the field frame assembly (20) include stator core (21) With winding (22), the winding (22) relative to the stator core (21) insulated fixation, the direct current generator also include with The commutator (23) of winding (22) electrical connection, the commutator (23) is fixed on the field frame assembly (20) or the support Assembly (30).
2. direct current generator according to claim 1, it is characterised in that the rotor subject includes rotating shaft (11) and rotor iron Core (12), the rotor assembly (10) includes brush carrier (14), and the brush (13) is by the brush carrier (14) installed in institute State in rotating shaft (11).
3. direct current generator according to claim 2, it is characterised in that the brush carrier (14) is straight type structure, described turn Axle (11) is set through the brush carrier (14).
4. direct current generator according to claim 3, it is characterised in that the direct current generator include the first brush (13a) and Second brush (13b), first brush (13a) and the second brush (13b) be set to the axis of the rotating shaft (11) away from From difference, the bracket assembly (30) includes the first support (31) being packaged from the two ends of the direct current generator respectively and Two supports (32), one end of first brush (13a) and one end of the second brush (13b) is relative with the commutator (23) sets Put, the other end of first brush (13a) and the other end of the second brush (13b) is relative with the first support (31) sets Put, the first support (31) be provided with the first conducting ring (33) for being electrically connected with the other end of first brush (13a) and The second conducting ring (34) electrically connected with the other end of second brush (13b).
5. direct current generator according to claim 4, it is characterised in that first conducting ring (33) and the second conducting ring (34) by can along the rotating shaft (11) be adjusted axially position in the way of be installed on the first support (31).
6. direct current generator according to claim 5, it is characterised in that the first support (31) is including rack body (31a) and conducting ring mounting bracket (35), first conducting ring (33) and the second conducting ring (34) are installed by the conducting ring Frame (35) is installed on the rack body (31a), and the conducting ring mounting bracket (35) is connected to the branch by screw tightening (36) Frame body (31a), spring (37) is arranged with the outside of the screw tightening (36).
7. the direct current generator according to any one in claim 1-6, it is characterised in that the field frame assembly (20) includes The installation portion (24) of the ring-type being installed on the inside of the stator core (21), the installation portion (24) is provided with along the installation portion (24) the winding section (24a) being radially arranged, the winding (22) is arranged on the winding section (24a).
8. direct current generator according to claim 7, it is characterised in that the commutator (23) is set to and the brush (13) plane contact.
9. direct current generator according to claim 8, it is characterised in that the direct current generator includes multiple commutators (23), each described commutator (23) is set to the bulk that cross section is fan annular, and multiple commutators (23) circumferentially set Put on the installation portion (24) and split is cyclic structure, the commutator (23) is by fanning annular end face and the brush (13) contact.
10. the direct current generator according to any one in claim 1-6, it is characterised in that the direct current generator is included extremely Winding (22) described in few two groups, winding (22) described in every group forms an electrode.
CN201621344623.1U 2016-12-08 2016-12-08 Direct current generator Active CN206211805U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621344623.1U CN206211805U (en) 2016-12-08 2016-12-08 Direct current generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621344623.1U CN206211805U (en) 2016-12-08 2016-12-08 Direct current generator

Publications (1)

Publication Number Publication Date
CN206211805U true CN206211805U (en) 2017-05-31

Family

ID=58746542

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621344623.1U Active CN206211805U (en) 2016-12-08 2016-12-08 Direct current generator

Country Status (1)

Country Link
CN (1) CN206211805U (en)

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