Four utmost point series machines and stator module and stator lasmination
[
Technical field]
The utility model relates to small-power AC/DC universal series machine, particularly relates to the stator module of described series machine, especially relates to the stator lasmination of the stator module of described series machine.
[
Background technology]
Referring to Figure 13 and Figure 14, prior art U series, it is AC/DC universal series small-power series machine, its stator lasmination 110 ' only establish a pair of magnetic pole (salient pole) 111 ', this magnetic pole 111 ' bipolar shoe rear respectively establish a stator slot 112 ', two concentrated winding (not shown)s just embed stator slot 112 at each magnetic pole 111 ' pole shoe rear ' in; This series machine only have two brushes 520 '; And rotor assembly 400 ' the rotor winding design according to two magnetic pole modes and be placed in each rotor, this rotor winding is generally single repeatedly two layer winding, only have two branch roads, its current density generally current density than stator module is high, it is high that the temperature rise of the temperature rise ratio stator module of rotor assembly is also wanted, and this structure is difficult to satisfy the requirement of the high-power and high-torque of user.
[
The utility model content]
The technical problems to be solved in the utility model is to avoid above-mentioned the deficiencies in the prior art part and a kind of four utmost point series machines and stator module and stator lasmination is provided, though this stator lasmination inner chamber arranges four magnetic poles, but two windings only are installed, the rotor winding then designs according to four magnetic pole modes and is placed in each rotor, and drawn respectively by four brushes, thereby described series machine is in the situation of equal volume, it is large and output torque is large to have power output, and rotor current density is little, fixed, rotor heating tends to balance, temperature rise is low, has effectively improved the fail safe when series machine uses, the useful life of greatly having improved series machine.
The technical scheme that the utility model solve the technical problem employing is:
A kind of four utmost point series machines are provided, comprise rotor assembly, brush assembly of electric and forward and backward support, and be installed on the stator module between this forward and backward support; Described stator module comprises stator lasmination and stator winding; Described rotor assembly is arranged on the described forward and backward support rotationally, and this rotor assembly comprises armature spindle, be fixed on the rotor pack on this armature spindle and be fixed on commutator on this armature spindle, and is arranged on the rotor winding in the rotor of rotor pack; Described stator lasmination inner chamber arranges four magnetic poles, the identical magnetic pole symmetry of per two shape and size is arranged to a pair of in opposite directions, wherein need to embed stator winding on a pair of magnetic pole and be called the first magnetic pole, another is called the second magnetic pole to embedding stator winding on the magnetic pole, and the pole shoe of described the second magnetic pole is shorter than the pole shoe of described the first magnetic pole; Each described first magnetic pole bipolar shoe rear respectively is provided with the first stator slot, and each described second magnetic pole bipolar shoe rear also respectively is provided with the second stator slot, and the area of the second stator slot also area than the first stator slot is little; Described stator winding is two concentrated windings, embeds respectively in one of described stator lasmination each first stator slot to the first magnetic pole pole shoe rear; The quantity of the rotor of described rotor pack is 4*z, its z 〉=3, and be integer; Described rotor winding designs according to four magnetic pole modes and is placed in each rotor; Described brush assembly of electric is fixed on the described fore-stock, comprises four brushes, and per two brush symmetries are arranged to a pair of in opposite directions; After series machine assembled, under the elastic force effect of each spring of brush assembly of electric, four described brushes stretched out respectively, and its head contacts with the commutator face of described rotor assembly respectively.
Described rotor winding is the winding that changes, and is generally the short distance winding.
Described stator lasmination is the stacking cuboid that forms of multi-disc stator punching, and its length is 84.0 ± 1.0 millimeters, and width is 78.0 ± 1.0 millimeters.The overall diameter of described rotor pack is 60.0 ± 1.0 millimeters.Described z=4, namely the quantity of the rotor of described rotor pack is 16 grooves.
Described rotor winding is single repeatedly two layer winding, and is the short distance winding, adopts the right lateral winding, and its first segment distance is 3.
A kind of stator module of four utmost point series machines also is provided, comprises stator lasmination and stator winding; Described stator lasmination inner chamber arranges four magnetic poles, the identical magnetic pole symmetry of per two shape and size is arranged to a pair of in opposite directions, wherein need to embed stator winding on a pair of magnetic pole and be called the first magnetic pole, another is called the second magnetic pole to embedding stator winding on the magnetic pole, and the pole shoe of described the second magnetic pole is shorter than the pole shoe of described the first magnetic pole; Each described first magnetic pole bipolar shoe rear respectively is provided with the first stator slot, and each described second magnetic pole bipolar shoe rear also respectively is provided with the second stator slot; Described stator winding is two concentrated windings, embeds respectively in one of described stator lasmination each first stator slot to the first magnetic pole pole shoe rear.
A kind of stator lasmination of four utmost point series machines is provided again, described stator lasmination inner chamber arranges four magnetic poles, the identical magnetic pole symmetry of per two shape and size is arranged to a pair of in opposite directions, wherein need to embed stator winding on a pair of magnetic pole and be called the first magnetic pole, another is called the second magnetic pole to embedding stator winding on the magnetic pole, and the pole shoe of described the second magnetic pole is shorter than the pole shoe of described the first magnetic pole; Each described first magnetic pole bipolar shoe rear respectively is provided with the first stator slot, and each described second magnetic pole bipolar shoe rear also respectively is provided with the second stator slot.
Compare with prior art, the beneficial effect of the utility model four utmost point series machines and stator module and stator lasmination is:
The stator lasmination inner chamber is arranged four magnetic poles, and two concentrated windings of stator embed respectively in one of described stator lasmination each stator slot to the first magnetic pole pole shoe back; The rotor winding then designs according to four magnetic pole modes and is placed in each rotor, and is drawn respectively by four brushes; This structure has guaranteed that series machine is in the situation of equal volume, it is large and output torque is large to have power output, and rotor current density is little, the stator and rotor heating tends to balance, temperature rise is low, effectively improved the fail safe when series machine uses, the useful life of greatly having improved series machine.
[
Description of drawings]
Fig. 1 is the main schematic diagram of looking of the orthographic projection of the utility model four utmost point series machines;
Fig. 2 is that schematic diagram is looked on the orthographic projection left side of series machine shown in Figure 1;
Fig. 3 is the axonometric projection schematic diagram of the stator lasmination 110 of described series machine;
Fig. 4 is the main schematic diagram of looking of the orthographic projection of stator lasmination 110 shown in Figure 3;
Fig. 5 is the main schematic diagram of looking of orthographic projection of the stator module 100 of described series machine;
Fig. 6 is the axonometric projection schematic diagram of the rotor pack 420 of described series machine;
Fig. 7 is that main the looking of orthographic projection of the rotor assembly 400 of described series machine partly cutd open schematic diagram;
Fig. 8 is that schematic diagram is looked on the orthographic projection left side of rotor assembly 400 shown in Figure 7, has only drawn part rotor winding 440 among the figure;
Fig. 9 is the expansion schematic diagram of the rotor winding 440 of described rotor assembly 400, and this rotor winding is single repeatedly two layer winding; Alphabetical A and B among the figure represent wiring point;
Figure 10 is the simple and clear circuit diagram of rotor winding shown in Figure 9, wherein U
2For being added in the voltage on the rotor winding, I is its total current, and alphabetical A and B represent wiring point;
Figure 11 is each brush cover 510 axonometric projection schematic diagram that are fixed on the fore-stock 200 of the brush assembly of electric 500 of described series machine;
Figure 12 is the simple and clear schematic circuit schematic diagram of described series machine, wherein U
1Be input voltage, alphabetical A and B represent wiring point;
Figure 13 be the prior art series machine stator lasmination 110 ' the main schematic diagram of looking of orthographic projection;
Figure 14 is the simple and clear schematic circuit schematic diagram of prior art series machine.
[embodiment]
Below in conjunction with each accompanying drawing the utility model is described in further detail.
Referring to Fig. 1 to Figure 12, a kind of four utmost point series machines comprise rotor assembly 400, brush assembly of electric 500 and forward and backward support 200,300, and are installed on the stator module 100 between this forward and backward support 200,300; Described stator module 100 comprises stator lasmination 110 and stator winding 120; Described rotor assembly 400 is arranged on the described forward and backward support 200,300 rotationally, this rotor assembly 400 comprises armature spindle 410, be fixed on the rotor pack 420 on this armature spindle 410 and be fixed on commutator 430 on this armature spindle 410, and is arranged on the rotor winding 440 in the rotor 422 of rotor pack 420; Described stator lasmination 110 inner chambers arrange four magnetic poles, the identical magnetic pole symmetry of per two shape and size is arranged to a pair of in opposite directions, wherein need to embed stator winding on a pair of magnetic pole and be called the first magnetic pole 111, another is called the second magnetic pole 113 to embedding stator winding on the magnetic pole, and the pole shoe of described the second magnetic pole 113 is shorter than the pole shoe of described the first magnetic pole 111; Each described the first magnetic pole 111 bipolar shoe rear respectively is provided with the first stator slot 112, and each described the second magnetic pole 113 bipolar shoe rear also respectively is provided with the area of the second stator slot 114, the second stator slots 114, and also the area than the first stator slot 112 is little; Described stator winding 120 is two concentrated windings, embeds respectively in one of described stator lasmination 110 each first stator slot 112 to the first magnetic pole 111 pole shoe rears; The quantity of the rotor 422 of described rotor pack 420 is 4*z, its z 〉=3, and be integer; Described rotor winding 440 designs according to four magnetic pole modes and is placed in each rotor 422, is the winding that changes for rotor winding 440, increases number of magnetic poles, can obtain more parallel branch number, is particularly suitable for the series machine of large electric current; Described brush assembly of electric 500 is fixed on the described fore-stock 200, comprises four brushes 520, and per two brush 520 symmetries are arranged to a pair of in opposite directions; After series machine assembled, under the elastic force effect of each spring of brush assembly of electric 500, four described brushes 520 stretched out respectively, its head respectively with commutator 430 Surface Contacts of described rotor assembly 400.Make its pole shoe design shorter because embedding stator winding on the second magnetic pole 113 of described stator lasmination 110 inner chambers, thereby but vacating space embeds in each first stator slot 112 at the first magnetic pole 111 pole shoe rears of stator lasmination 110 stator winding 120 easily.
Referring to Fig. 9, described rotor winding 440 is the winding that changes, and is generally the short distance winding; Four magnetic poles adopt repeatedly a way of winding more than a way of wave winding.
Referring to Fig. 3, Fig. 4, Fig. 6, Fig. 8 and Fig. 9, described stator lasmination 110 is the stacking cuboid that forms of multi-disc stator punching, and its length L is 84.0 ± 1.0 millimeters, and width W is 78.0 ± 1.0 millimeters.The overall diameter D of described rotor pack 420 is 60.0 ± 1.0 millimeters.Described z=4, namely the quantity of the rotor 422 of described rotor pack 420 is 16 grooves.
Referring to Fig. 9 and Figure 10, the rotor winding 440 of the utility model four utmost point series machines is single repeatedly two layer winding, and is the short distance winding, adopts the right lateral winding, and its first segment distance is 3; Rotor assembly 400 of the present utility model has four branch roads, and the rotor winding of the rotor assembly of prior art is similarly single repeatedly two layer winding, but only has two branch roads; The rotor current density of the utility model four utmost point series machines is little like this, the stator and rotor heating tends to balance, temperature rise is low, effectively improved the fail safe when series machine uses, greatly improved the useful life of series machine, in the situation of equal volume, the utility model four utmost point series machines have the large and large advantage of output torque of power output simultaneously.
Referring to Figure 11, the brush assembly of electric 500 of the utility model four utmost point series machines comprises four brush 510, four brushes 520 of cover and four springs, and these four brush covers 510 are fixed on the fore-stock 200, and per two brushes overlap 510 symmetries and are arranged in opposite directions a pair of; Four brushes 520 and corresponding spring thereof just are separately positioned in four brush covers 510; Do not draw each brush 520 and each spring among Figure 10.
Referring to Figure 12, the simple and clear schematic circuit schematic diagram of the utility model four utmost point series machines, per two brushes 520 are connected, stator winding 120 is electrically connected in series the rotor winding 440 of rotor assembly 400 through the brush 520 of two phase short circuits, and the brush 520 through other two phase short circuits is electrically connected in series another stator winding 120 again.
The above embodiment has only expressed preferred implementation of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim; Should be pointed out that for the person of ordinary skill of the art without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model; Therefore, all equivalents and modifications of doing with the utility model claim scope all should belong to the covering scope of the utility model claim.