CN117728613A - Flat wire motor suitable for windings of different parallel branches - Google Patents
Flat wire motor suitable for windings of different parallel branches Download PDFInfo
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- CN117728613A CN117728613A CN202311674843.5A CN202311674843A CN117728613A CN 117728613 A CN117728613 A CN 117728613A CN 202311674843 A CN202311674843 A CN 202311674843A CN 117728613 A CN117728613 A CN 117728613A
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- 238000004804 winding Methods 0.000 title claims abstract description 68
- 239000004020 conductor Substances 0.000 claims description 146
- 238000003466 welding Methods 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 5
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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Abstract
The invention relates to the technical field of flat wire motors, and discloses a flat wire motor suitable for windings of different parallel branches. In the invention, the design of the motor winding can be realized only by Y/2+1 kinds of hairpin, the kinds of hairpin are few, and the die sinking cost and the equipment cost are reduced; in motor production, production efficiency is increased. Because two same-layer hairpin sets and one cross-layer hairpin set are adopted in the single unit, the unit can obtain different branch numbers in a simple serial or parallel connection mode, and the unit is applicable to 1 branch, 2 branches and 4 branches, so that the universality of the unit is improved, the serialization of products is facilitated, and the aim of reducing the manufacturing period is fulfilled. In addition, the unit formed by the three card-issuing combinations forms a short-distance arrangement form, which is beneficial to eliminating harmonic waves.
Description
Technical Field
The invention relates to the technical field of flat wire motors, in particular to a flat wire motor suitable for windings of different parallel branches.
Background
Chinese patent CN217183063U discloses a flat wire stator assembly with a branch structure and a motor using the stator assembly; in this patent, there are a large number of types of clips, 5 types of clips are required for four-layer flat wires, and a minimum of 7 types are required for corresponding 8-layer flat wires.
Chinese patent CN115693998A discloses a winding structure of a flat wire motor stator; in this patent, the issuer card has no versatility and is not capable of implementing a single-leg to multi-leg change.
The prior art is concentrated on more than 2 paths of parallel winding designs, less consideration is given to a single path of winding, the winding connection mode is relatively fixed, and the number of parallel branches cannot be changed under the condition of not increasing a bus bar, so that the parallel winding cannot be suitable for different voltage class and power class requirements. When designing a flat wire motor hairpin, the following requirements are set:
1. can realize single branch connection
2. The fewer and better the card-issuing types are, the die-sinking cost is reduced, and the process difficulty is reduced;
3. the universality of the card issuing is suitable for different parallel branches, and the manufacturing period is shortened;
4. the short-distance winding is adopted, so that the short moment is better, and harmonic waves can be eliminated;
disclosure of Invention
Aiming at the defects existing in the prior art, the flat wire motor suitable for windings of different parallel branches is provided, the number of the used hairpin types is small, and a single branch can be realized.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the flat wire motor suitable for windings with different parallel branches comprises a stator core and stator windings, wherein a plurality of stator slots are uniformly distributed on the stator core along the circumference, the stator windings are divided into a-phase windings in the stator slots, the electric phases of the a-phase windings are different from each other, and one or more parallel branches are arranged in each phase winding;
the winding is formed by welding a plurality of hair clips end to end, and each hair clip is of a U-shaped structure and comprises two effective conductors, welding ends respectively positioned on the same side of the two effective conductors, and a hair clip connecting section connected with the other side of the two effective conductors; the effective conductors are arranged in stator slots of the stator core, the welding ends of all the hair clips are positioned at one side of the stator core, and the hair clip connecting section is positioned at the other side of the stator core;
the single stator slot is provided with a Y layer, Y is an even number not less than 4, the direction close to the slot opening is a first layer, and each magnetic pole corresponds to q stator slots; the stator core comprises X stator slots, wherein q=x/2 p of each stator slot corresponds to each magnetic pole, wherein p is the pole pair number, i.e. 2p is the magnetic pole number, and X is an integer multiple of q;
the method is characterized in that: in a phase winding, one parallel branch is formed by connecting one or more units in series, and the number of the units in the phase winding is fixed; in one phase winding, one unit is rotated by 2nq stator slots to obtain the other unit, wherein n is a positive integer;
in a single unit, the single unit comprises two first-layer same-layer hairpins, two Y-layer same-layer hairpins and four cross-layer hairpins, wherein the cross-layer hairpins are connected between the first-layer same-layer hairpins and the Y-layer same-layer hairpins; according to the current direction, setting the front effective conductor as an A conductor and the rear effective conductor as a B conductor in the same hairpin;
the card is sent out in the first layer of the same-layer card sender and the Y layer of the same-layer card sender; the spans between two effective conductors of the same-layer hairpin are long or short, the conductor A of one hairpin is in the clockwise direction of the conductor B, and the conductor A of the other hairpin is in the anticlockwise direction of the conductor B; the span between two effective conductors of the other same-layer hairpin is the whole distance, and the conductors A of the two same-layer hairpin are simultaneously in the clockwise direction or the anticlockwise direction of the conductors B;
the cross-layer hairpin group consists of a plurality of cross-layer hairpin groups with the same span, and two effective conductors of the cross-layer hairpin groups are separated by one layer; in all the cross-layer hairpin groups, the effective conductor positioned at the high layer is positioned in the clockwise direction or the anticlockwise direction of the effective conductor positioned at the low layer; a welding part consisting of welding ends between two adjacent hairpin, wherein the spans of two effective conductors of all the welding parts are the same; the two effective conductors of the same cross-layer hairpin and the two effective conductors of the same welding part are long-distance and short-distance.
According to the technical scheme, the whole distance is q, the long distance is q+1, and the short distance is q-1.
According to the technical scheme, in the unit, any welding part is adopted to disconnect the inlet and the outlet which are used as outgoing lines.
Further, an effective conductor of a Y-layer same-layer hairpin is adopted as an inlet or an outlet of the outgoing line, and the end head of the last cross-layer hairpin group of the unit is adopted as the outlet or the inlet of the outgoing line.
According to the technical scheme, the span between two effective conductors of two first-layer same-layer card-issuing is q-1 or q+1, the A conductor of one first-layer same-layer card-issuing is clockwise in the B conductor, and the A conductor of the other first-layer same-layer card-issuing is anticlockwise in the clockwise in the B conductor;
the span between two effective conductors of two Y-layer same-layer hairpin is q, and the A conductors of two Y-layer same-layer hairpin are in the clockwise direction or the anticlockwise direction of the B conductors.
Further, X is 48, a is 3, p is 4, q is 6, and the long distance or the short distance is 7 or 5 respectively; one parallel branch consists of one unit, two units connected in series, or four units connected in series.
According to the technical scheme, the span between two effective conductors of two Y-layer same-layer card-issuing is q-1 or q+1, one Y-layer same-layer card-issuing A conductor is clockwise in the B conductor, and the other Y-layer same-layer card-issuing A conductor is anticlockwise in the B conductor;
the span between the two effective conductors of the two first-layer same-layer hairpins is q, and the A conductors of the two first-layer same-layer hairpins are simultaneously clockwise or anticlockwise in the B conductors.
Further, X is 48, a is 3, p is 4, q is 6, and the long distance or the short distance is 7 or 5 respectively; one parallel branch consists of one unit, two units connected in series, or four units connected in series.
The invention has the following beneficial effects:
1. in the invention, the windings in the units are formed by alternately connecting the same-layer hairpins and the cross-layer hairpins, wherein the same-layer hairpins are arranged on the first layer and the Y-layer hairpins, the cross-layer hairpins are arranged on the middle layer between the first layer and the Y-layer hairpins, so that the types of hairpins required by using are reduced, the design of the motor windings can be realized by only Y/2+1 hairpins, the types of hairpins are few, each hairpin needs to be provided with a corresponding mould, and the corresponding stamping equipment is matched, the mould opening cost and the equipment cost can be reduced, and if the mould is not replaced frequently by the stamping equipment, the ageing of the mould and the equipment can be accelerated, and the cost is also reduced; in addition, the number of the types of the hairpins is small, and in motor production, the time for a worker to select the correct hairpins is reduced, so that the production efficiency is improved.
Secondly, because the single unit of the invention comprises two kinds of cards with the same layer, the cards with the same layer adopt a whole distance, the conductor A of one card with the same layer is in the clockwise direction of the conductor B, and the conductor A of the other card with the same layer is in the anticlockwise direction of the conductor B. Another type of the same-layer hairpin uses a long distance or a short distance, and the A conductors of two hairpin of the same-layer hairpin are simultaneously clockwise or anticlockwise in the B conductors. A cross-layer card issuing group consisting of a plurality of cross-layer card issuing with the same span is arranged between a first layer of same-layer card issuing and a Y-layer same-layer card issuing; in all the cross-layer hairpin groups, the effective conductor positioned at the high layer is positioned in the clockwise direction or the anticlockwise direction of the effective conductor positioned at the low layer; and the welding part and the cross-layer hairpin are long in distance and short in distance. Based on the design, the units can obtain different branch numbers, such as 1 branch, 2 branches and 4 branches, by simple serial connection or parallel connection, so that the universality of the unit is improved, the serialization of products is facilitated, and the aim of reducing the manufacturing period is fulfilled.
Finally, the three types of hair-clip forming units are adopted to form a short-distance arrangement form, which is beneficial to eliminating harmonic waves.
2. Each branch has only 2 outgoing lines, which is the least in theory; in addition, two outgoing lines of all branches of the same phase are respectively concentrated on a Y layer and a Y-1 layer which are separated by p stator slots, and the outgoing lines of all branches of all phases are adjacent to each other, so that the heights of winding end parts can be effectively reduced and the power density of a motor can be improved while the concentration of the outgoing lines is ensured; the process difficulty is reduced, and the reliability of the motor is improved.
3. Each branch of the invention is consistent, and no circulation flow is generated.
Drawings
FIG. 1 is a schematic diagram of a construction of an embodiment of the present invention;
FIG. 2 is a diagram of the number of layers of a stator slot according to one embodiment of the present invention;
FIG. 3 is a schematic diagram of a card issuer according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a second embodiment of a hairpin according to the invention;
FIG. 5 is a schematic diagram III of the structure of a hairpin according to an embodiment of the invention;
FIG. 6 is a graph of the connection of three phase windings of one embodiment of the present invention;
FIG. 7 is a graph of the connection of three phase windings of another embodiment of the present invention;
in the figure, 1, a stator core; 2. a stator winding; 3. a stator groove; 4. issuing a card; 4-1, an effective conductor; 4-2, welding ends; 4-3, a hairpin connecting section; 5. the first layer is provided with a hairpin at the same layer; 6. the Y layer sends out cards in the same layer; 7. a cross-layer hairpin group; 8. and (5) leading out wires.
Detailed Description
The invention will now be described in detail with reference to the drawings and examples.
Referring to fig. 1 to 7, the present invention provides a flat wire motor suitable for windings of different parallel branches.
Example 1
The stator comprises a stator core 1 and stator windings 2, wherein a plurality of stator slots 3 are uniformly distributed on the circumference of the stator core, the stator windings are divided into a-phase windings in the stator slots, the electric phases of the a-phase windings are different from each other, and one or more parallel branches are arranged in each phase winding;
the winding is formed by welding a plurality of hair clips 4 end to end, and each hair clip is of a U-shaped structure and comprises two effective conductors 4-1, welding ends 4-2 respectively positioned on the same side of the two effective conductors, and a hair clip connecting section 4-3 connected with the other side of the two effective conductors; the effective conductors are arranged in stator slots of the stator core, the welding ends of all the hair clips are positioned at one side of the stator core, and the hair clip connecting section is positioned at the other side of the stator core;
the single stator slot is provided with a Y layer, Y is an even number not less than 4, the direction close to the slot opening is a first layer, and each magnetic pole corresponds to q stator slots; the stator core comprises X stator slots, wherein q=x/2 p of each stator slot corresponds to each magnetic pole, wherein p is the pole pair number, i.e. 2p is the magnetic pole number, and X is an integer multiple of q;
the method is characterized in that: in a phase winding, one parallel branch is formed by connecting one or more units in series, and the number of the units in the phase winding is fixed, namely, the number of the units in each parallel branch is small, and the number of the parallel branches in the phase winding is large; in one phase winding, one unit is rotated by 2nq stator slots to obtain the other unit, wherein n is a positive integer;
in a single unit, the single unit comprises two first-layer same-layer hairpins 5, two Y-layer same-layer hairpins 6 and four cross-layer hairpins 7, wherein the cross-layer hairpins are connected between the first-layer same-layer hairpins and the Y-layer same-layer hairpins; according to the current direction, setting the front effective conductor as an A conductor and the rear effective conductor as a B conductor in the same hairpin;
the card is sent out in the first layer of the same-layer card sender and the Y layer of the same-layer card sender; the spans between two effective conductors of the same-layer hairpin are long or short, the conductor A of one hairpin is in the clockwise direction of the conductor B, and the conductor A of the other hairpin is in the anticlockwise direction of the conductor B; the span between two effective conductors of the other same-layer hairpin is the whole distance, and the conductors A of the two same-layer hairpin are simultaneously in the clockwise direction or the anticlockwise direction of the conductors B;
the cross-layer hairpin group consists of a plurality of cross-layer hairpin groups with the same span, and two effective conductors of the cross-layer hairpin groups are separated by one layer; in all the cross-layer hairpin groups, the effective conductor positioned at the high layer is positioned in the clockwise direction or the anticlockwise direction of the effective conductor positioned at the low layer; a welding part consisting of welding ends between two adjacent hairpin, wherein the spans of two effective conductors of all the welding parts are the same; the two effective conductors of the same cross-layer hairpin and the two effective conductors of the same welding part are long-distance and short-distance.
In the invention, the windings in the units are formed by alternately connecting the same-layer hairpins and the cross-layer hairpins, wherein the same-layer hairpins are arranged on the first layer and the Y-layer hairpins, the cross-layer hairpins are arranged on the middle layer between the first layer and the Y-layer hairpins, so that the types of hairpins required by using are reduced, the design of the motor windings can be realized by only Y/2+1 hairpins, the types of hairpins are few, each hairpin needs to be provided with a corresponding mould, and the corresponding stamping equipment is matched, the mould opening cost and the equipment cost can be reduced, and if the mould is not replaced frequently by the stamping equipment, the ageing of the mould and the equipment can be accelerated, and the cost is also reduced; in addition, the number of the types of the hairpins is small, and in motor production, the time for a worker to select the correct hairpins is reduced, so that the production efficiency is improved.
Secondly, because the single unit of the invention comprises two kinds of cards with the same layer, the cards with the same layer adopt a whole distance, the conductor A of one card with the same layer is in the clockwise direction of the conductor B, and the conductor A of the other card with the same layer is in the anticlockwise direction of the conductor B. Another type of the same-layer hairpin uses a long distance or a short distance, and the A conductors of two hairpin of the same-layer hairpin are simultaneously clockwise or anticlockwise in the B conductors. A cross-layer card issuing group consisting of a plurality of cross-layer card issuing with the same span is arranged between a first layer of same-layer card issuing and a Y-layer same-layer card issuing; in all the cross-layer hairpin groups, the effective conductor positioned at the high layer is positioned in the clockwise direction or the anticlockwise direction of the effective conductor positioned at the low layer; and the welding part and the cross-layer hairpin are long in distance and short in distance. Based on the design, the units can obtain different branch numbers through a simple serial connection or parallel connection mode, and the method is applicable to 1 branch, 2 branches and 4 branches, improves the universality of the unit, is beneficial to serialization of products, and achieves the purpose of reducing the manufacturing period.
Finally, the three types of hair-clip forming units are adopted to form a short-distance arrangement form, which is beneficial to eliminating harmonic waves.
Example 2
The structure and principle of embodiment 2 are similar to those of embodiment 1, except that: preferably, the whole distance is q, the long distance is q+1, and the short distance is q-1.
Example 3
The structure and principle of embodiment 3 are similar to those of embodiment 1, except that: in the unit, any one of the welded portions is broken as an inlet and an outlet as the lead-out wire 8.
Based on example 3, it is preferable to use the effective conductor of one Y-th layer card-issuing as the inlet or outlet of the outgoing line, and the end of the last cross-layer card-issuing group of the unit as the outlet or inlet of the outgoing line, as shown in the figure.
Example 4
The structure and principle of embodiment 4 is similar to those of embodiments 1-3, except that: the span between two effective conductors of two first-layer same-layer card-issuing is q-1 or q+1, the A conductor of one first-layer same-layer card-issuing is in the clockwise direction of the B conductor, and the A conductor of the other first-layer same-layer card-issuing is in the clockwise direction and the anticlockwise direction of the B conductor;
the span between two effective conductors of two Y-layer same-layer hairpin is q, and the A conductors of two Y-layer same-layer hairpin are in the clockwise direction or the anticlockwise direction of the B conductors.
On the basis of embodiment 4, it is preferable that the stator core has 48 stator slots distributed on the circumference at a certain distance; the stator winding comprises 3-phase windings arranged on a stator core, the 3-phase windings are different in electric phase, 8 layers are formed in stator slots along the radial direction of the stator core, and in the embodiment of the invention, the motor rotor is provided with 8 magnetic poles, namely 6 stator slots are corresponding to each magnetic pole, and 2 stator slots are corresponding to each pole. The phase winding comprises 4 units consisting of 1 parallel branch, the winding connection mode and the hairpin arrangement mode of each unit are identical, a plurality of units are distributed rotationally symmetrically along the axis of the iron core, and adjacent unit units are different by 12 stator slots on the circumference. In addition, the parallel branch of the present embodiment is composed of 4 units.
As shown in fig. 6, the first layer same-layer hairpin includes two first layer same-layer hairpin, the first layer same-layer hairpin and the cross-layer hairpin are connected at the welding end, wherein the first layer same-layer hairpin includes two hairpin a conductors respectively at 3 groove 1 layers and 4 groove 1 layers, the B conductors respectively located at 9 groove 1 layers and 10 groove 1 layers along the same direction from crossing 6 grooves to the other pole, and the span of the first layer same-layer hairpin is 6.
The second part of the lead comprises 12 cross-layer card-issuing groups, the 12 cross-layer card-issuing groups are 4 groups, each 3 cross-layer card-issuing groups sequentially cross a pole along the same direction and are sequentially connected in series, the 2 nd layer to the 7 th layer are circumferentially distributed in the stator slot along the stator core, the 2 nd layer of the plurality of cross-layer card-issuing groups and the first layer of the same-layer card-issuing are connected at a welding end, and the 7 th layer of the plurality of cross-layer card-issuing groups and the 8 th layer of the same-layer card-issuing are connected at the welding end. The span of the welding part is 7, and the span of the cross-layer hairpin is 5.
The 8 th layer is sent out the card and is contained two 8 th layer and send out the card with the layer, and first layer is sent out the card and is connected at the welding end with layer card group with the layer, and wherein first conductor that two card sending out card that first layer sent out the card with the layer contained is at 14 groove 8 layers and 15 groove 8 layers respectively, and the second conductor is crossed 5 grooves to another pole along the reverse respectively, is located 9 groove 8 layers and 20 groove 8 layers respectively, and the span of 8 th layer is 5 with layer card.
The first layer same-layer hairpin, the third part conductor and the second part conductor form a unit, the 12 grooves are formed into other 3 coil units by rotating in sequence along the circumferential direction, the 4 coil units are connected in series, and two outgoing lines are formed at the welding positions of two specific hairpin wires to form a branch.
Example 5
The structure and principle of embodiment 5 is similar to those of embodiments 1-3, except that: the span between two effective conductors of two Y-layer same-layer card-issuing is q-1 or q+1, the A conductor of one Y-layer same-layer card-issuing is in the clockwise direction of the B conductor, and the A conductor of the other Y-layer same-layer card-issuing is in the clockwise direction and the anticlockwise direction of the B conductor;
the span between the two effective conductors of the two first-layer same-layer hairpins is q, and the A conductors of the two first-layer same-layer hairpins are simultaneously clockwise or anticlockwise in the B conductors.
On the basis of embodiment 5, it is preferable that the stator core has 48 stator slots distributed on the circumference at a certain distance; the stator winding comprises 3-phase windings arranged on a stator core, the 3-phase windings are different in electric phase, and 6 layers are formed in stator slots along the radial direction of the stator core. The phase winding comprises 4 units consisting of 1 parallel branch, the winding connection mode and the hairpin arrangement mode of each unit are identical, a plurality of units are distributed rotationally symmetrically along the axis of the iron core, and adjacent unit units are different by 12 stator slots on the circumference. In addition, the parallel branch of the present embodiment is composed of 2 units.
As shown in fig. 7, the first layer same-layer hairpin includes two first layer same-layer hairpin, the first layer same-layer hairpin and the cross-layer hairpin are connected at the welding end, wherein the a conductors of the two hairpin included in the first layer same-layer hairpin are respectively at the 3-slot 1 layer and the 4-slot 1 layer, the B conductors are respectively located at the 10-slot 1 layer and the 45-slot 1 layer along the reverse direction so as to span 7 slots to the other pole, and the span of the first layer same-layer hairpin is 7.
The second part of the lead comprises 8 cross-layer card sending groups, the 8 cross-layer card sending groups are 4 groups, each group of 2 cross-layer card sending groups sequentially crosses over one pole in sequence along the same direction and is connected in series, the 2 nd layer to the 5 th layer are circumferentially distributed in the stator slot along the stator core, the 2 nd layer of the plurality of cross-layer card sending groups and the first layer of the same-layer card sending are connected at a welding end, and the 5 th layer of the plurality of cross-layer card sending groups and the 6 th layer of the same-layer card sending are connected at the welding end. The span of the welding part is 5, and the span of the cross-layer hairpin is 7.
The layer 6 same-layer hairpin comprises two layer 6 same-layer hairpin, the first layer same-layer hairpin and the cross-layer hairpin are connected at the welding end, wherein first conductors of the two hairpin contained in the first layer same-layer hairpin are respectively arranged on the layer 32 groove 6 layer and the layer 33 groove 6 layer, second conductors respectively span 6 grooves to the other pole along the reverse direction and are respectively arranged on the layer 26 groove 6 layer and the layer 27 groove 6 layer, and the span of the layer 6 same-layer hairpin is 6.
The first layer same-layer hairpin, the third part conductor and the second part conductor form a unit, the 12 grooves are formed into other 3 coil units by rotating in sequence along the circumferential direction, the 4 coil units are connected in series, and two outgoing lines are formed at the welding positions of two specific hairpin wires to form a branch.
The foregoing is merely illustrative of the present invention and is not intended to limit the scope of the invention, which is defined by the claims and their equivalents.
Claims (8)
1. The flat wire motor suitable for windings with different parallel branches comprises a stator core and stator windings, wherein a plurality of stator slots are uniformly distributed on the stator core along the circumference, the stator windings are divided into a-phase windings in the stator slots, the electric phases of the a-phase windings are different from each other, and one or more parallel branches are arranged in each phase winding;
the winding is formed by welding a plurality of hair clips end to end, and each hair clip is of a U-shaped structure and comprises two effective conductors, welding ends respectively positioned on the same side of the two effective conductors, and a hair clip connecting section connected with the other side of the two effective conductors; the effective conductors are arranged in stator slots of the stator core, the welding ends of all the hair clips are positioned at one side of the stator core, and the hair clip connecting section is positioned at the other side of the stator core;
the single stator slot is provided with a Y layer, Y is an even number not less than 4, the direction close to the slot opening is a first layer, and each magnetic pole corresponds to q stator slots; the stator core comprises X stator slots, wherein q=x/2 p of each stator slot corresponds to each magnetic pole, wherein p is the pole pair number, i.e. 2p is the magnetic pole number, and X is an integer multiple of q;
the method is characterized in that: in a phase winding, one parallel branch is formed by connecting one or more units in series, and the number of the units in the phase winding is fixed; in one phase winding, one unit is rotated by 2nq stator slots to obtain the other unit, wherein n is a positive integer;
in a single unit, the single unit comprises two first-layer same-layer hairpins, two Y-layer same-layer hairpins and four cross-layer hairpins, wherein the cross-layer hairpins are connected between the first-layer same-layer hairpins and the Y-layer same-layer hairpins; according to the current direction, setting the front effective conductor as an A conductor and the rear effective conductor as a B conductor in the same hairpin;
the card is sent out in the first layer of the same-layer card sender and the Y layer of the same-layer card sender; the spans between two effective conductors of the same-layer hairpin are long or short, the conductor A of one hairpin is in the clockwise direction of the conductor B, and the conductor A of the other hairpin is in the anticlockwise direction of the conductor B; the span between two effective conductors of the other same-layer hairpin is the whole distance, and the conductors A of the two same-layer hairpin are simultaneously in the clockwise direction or the anticlockwise direction of the conductors B;
the cross-layer hairpin group consists of a plurality of cross-layer hairpin groups with the same span, and two effective conductors of the cross-layer hairpin groups are separated by one layer; in all the cross-layer hairpin groups, the effective conductor positioned at the high layer is positioned in the clockwise direction or the anticlockwise direction of the effective conductor positioned at the low layer; a welding part consisting of welding ends between two adjacent hairpin, wherein the spans of two effective conductors of all the welding parts are the same; the two effective conductors of the same cross-layer hairpin and the two effective conductors of the same welding part are long-distance and short-distance.
2. The flat wire motor adapted for use with different parallel leg windings according to claim 1, wherein: the whole distance is q, the long distance is q+1, and the short distance is q-1.
3. The flat wire motor adapted for use with different parallel leg windings according to claim 1, wherein: in the unit, any one of the welded portions is employed to break the inlet and the outlet as the lead-out wire.
4. A flat wire motor adapted for use with different parallel leg windings according to claim 3, wherein: the effective conductor of a Y-layer same-layer hairpin is adopted as an inlet or an outlet of the outgoing line, and the end head of the last cross-layer hairpin group of the unit is adopted as the outlet or the inlet of the outgoing line.
5. A flat wire motor adapted for use in different parallel branch windings according to any of claims 1-4, characterized in that: the span between two effective conductors of two first-layer same-layer card-issuing is q-1 or q+1, the A conductor of one first-layer same-layer card-issuing is in the clockwise direction of the B conductor, and the A conductor of the other first-layer same-layer card-issuing is in the clockwise direction and the anticlockwise direction of the B conductor;
the span between two effective conductors of two Y-layer same-layer hairpin is q, and the A conductors of two Y-layer same-layer hairpin are in the clockwise direction or the anticlockwise direction of the B conductors.
6. The flat wire motor adapted for use with different parallel leg windings according to claim 5, wherein: x is 48, a is 3, p is 4, q is 6, and long distance or short distance is 7 or 5 respectively; one parallel branch consists of one unit, two units connected in series, or four units connected in series.
7. A flat wire motor adapted for use in different parallel branch windings according to any of claims 1-4, characterized in that: the span between two effective conductors of two Y-layer same-layer card-issuing is q-1 or q+1, the A conductor of one Y-layer same-layer card-issuing is in the clockwise direction of the B conductor, and the A conductor of the other Y-layer same-layer card-issuing is in the clockwise direction and the anticlockwise direction of the B conductor;
the span between the two effective conductors of the two first-layer same-layer hairpins is q, and the A conductors of the two first-layer same-layer hairpins are simultaneously clockwise or anticlockwise in the B conductors.
8. The flat wire motor adapted for use with different parallel leg windings according to claim 7, wherein: x is 48, a is 3, p is 4, q is 6, and long distance or short distance is 7 or 5 respectively; one parallel branch consists of one unit, two units connected in series, or four units connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311674843.5A CN117728613A (en) | 2023-12-06 | 2023-12-06 | Flat wire motor suitable for windings of different parallel branches |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311674843.5A CN117728613A (en) | 2023-12-06 | 2023-12-06 | Flat wire motor suitable for windings of different parallel branches |
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| Publication Number | Publication Date |
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| CN117728613A true CN117728613A (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311674843.5A Pending CN117728613A (en) | 2023-12-06 | 2023-12-06 | Flat wire motor suitable for windings of different parallel branches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117728613A (en) |
-
2023
- 2023-12-06 CN CN202311674843.5A patent/CN117728613A/en active Pending
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