JP2019534676A - Winding structure and winding method of DC motor for vehicle - Google Patents

Abstract

The coil winding structure of the direct current motor for a vehicle according to the present invention includes a cover assembly 10; a yoke assembly 30 having a plurality of excitation poles 32 disposed between the cover assembly 10 and the lower housing 40; An armature core 21 having a plurality of pole teeth 22 around which a coil 60 interacting with 32 is wound, and a commutator 24 having the same number of commutator pieces 25 corresponding to the excitation poles 32 below the armature core 21. And a brush 80 that is disposed around the commutator 24 and that selectively contacts the commutator 24 as the armature assembly 20 rotates. In the coil winding structure, the coil 60 wound around each pole tooth 22 is wound around five pole teeth 22. One coil winding group wound around the five pole teeth 22 again at an interval of seven pole teeth 22 is connected to the commutator piece 25 and the coil connected to the commutator piece 25 is connected to the coil. The winding group is structured to be continuously repeated through the next slot of the armature core 21. [Selection] Figure 9

Description

  The present invention relates to a direct current motor for a vehicle. Specifically, according to the present invention, the winding efficiency of the coil that connects the pole teeth of the armature core of the brush DC motor and the commutator piece is easily and efficiently wound, and the driving efficiency is achieved while having a new pattern winding structure. The present invention relates to a direct current motor for vehicles that excels in performance.

  Generally, a direct current motor has a configuration in which an armature is rotatably disposed inside a yoke having a magnet disposed on an inner peripheral surface thereof. The armature has a plurality of teeth extending radially from a rotating shaft, and a slot for armature coil winding is provided between the other teeth adjacent to the pole teeth in the axial direction. A plurality of lengths are formed.

  A plurality of coils are wound around the slot at predetermined intervals, and each coil is connected so as to be able to energize a commutator piece of a commutator attached to a rotating shaft spaced apart from the armature by a predetermined distance. . Each commutator piece is connected to a brush so as to be energized. Accordingly, when current is supplied from the brush to the commutator, an electric field is formed in each coil, and the armature and the commutator are formed by the interaction between the generated electric field and the magnet attached to the yoke. The attached rotating shaft rotates to generate a driving force.

  In particular, recently, various types of motors have been researched and developed for miniaturization of motors and maximization of driving efficiency in accordance with the demands of the DC motor market for vehicles. As an example, a DC motor disclosed in Korean Patent No. 10-1200505 has a coil wound around an armature core comprising 20 commutator pieces, and the number of armature cores equal to the number of commutator pieces. Has a slot.

  The conventional DC motor configured as described above is obtained by winding one end of a coil connected to a commutator piece around four pole teeth so as to have 4 pitches through any slot of the armature core. After the other end of the coil is connected to the commutator piece, it is repeatedly wound around the four pole teeth so as to have 4 pitches again. A winding pattern in which coils are wound around three pole teeth each having three pitches in the direction and connected to the coils wound at four pitch intervals, and a connection pattern for arranging and connecting the coils is provided. Because it is very complicated and coil winding work is very difficult, it is impossible to achieve a quick assembly process. This causes an increase in the manufacturing cost of the motor, and the coils wound around the armature core slots and pole teeth are not evenly distributed in the slots and pole teeth of the armature core. There is a problem that the generation of a magnetic field with an excitation pole provided corresponding to this becomes weak and the motor efficiency is lowered.

  An object of the present invention is to provide a direct current motor for a vehicle in which motor efficiency is maximized by applying a new winding pattern that enables quick and easy assembly.

  Another object of the present invention is to provide a DC motor for a vehicle having high efficiency by strengthening the magnetic field so that the coils can be uniformly distributed with respect to the armature core.

The coil winding structure of the direct current motor for vehicles according to the present invention is as follows:
Cover assembly 10;
A yoke assembly 30 having a plurality of excitation poles 32 disposed between the cover assembly 10 and the lower housing 40;
The armature core 21 having a plurality of pole teeth 22 around which the coil 60 interacting with the excitation pole 32 is wound, and the same number of commutator pieces 25 corresponding to the excitation pole 32 are provided below the armature core 21. An armature assembly 20 including a commutator 24; and a brush 80 that is disposed around the commutator 24 and selectively contacts the commutator 24 as the armature assembly 20 rotates. In the coil winding structure of a DC motor,
The coil 60 wound around each of the pole teeth 22 is wound around the five pole teeth 22 and is wound once again on the five pole teeth 22 at intervals of the seven pole teeth 22. The coil group connected to the commutator piece 25 is connected to the commutator piece 25 and the coil winding group connected to the commutator piece 25 is continuously repeated through the next slot of the armature core 21.

In the present invention,
The coil winding group includes first to n-th coil winding groups (where n is a natural number of 12 or less),
The n-th coil winding group starts from the n-th commutator piece (however, when n is 2 or more, starts from the {24- (n-2)}-th commutator piece), {12- (n -2)} connected to the commutator piece and wound at least twice at 5 pitch intervals from the a-th pole tooth [where a is n when n is 1 and n is 2 or more In this case, {24− (n−2)}], and is wound at least twice from the b-th pole tooth at 5 pitch intervals {where b is (14−n)} and {24− ( n-1)} is preferably connected to the commutator piece.

  In the present invention, it is preferable that the 5-pitch windings are wound in opposite directions.

The coil winding method of the direct current motor for vehicles according to the present invention includes:
In a coil winding method for a vehicle DC motor having n commutator pieces and n pole teeth (where n is a natural number),
The beginning of the coil at the nth commutator thin film (if n is 2 or more, start with the {24- (n-2)} commutator piece);
Connecting the coils with {12- (n-2)} commutator pieces;
The coil is wound at least twice at a pitch of 5 from the a-th tooth. [Where a is n when n is 1, and when n is 2 or more, {24− (n−2 )}], A stage wound at least twice from the b-th pole tooth at 5 pitch intervals {where b is (14-n)}; and the coil is {24- (n-1) } Connecting to the commutator piece;
It is characterized by comprising.

  According to the direct current motor for a vehicle according to the present invention, when implementing a four-pole motor, the winding process is applied quickly by applying the improved winding pattern, the assembling property is improved, and the manufacturing cost of the motor is reduced. By balancing the coil distribution, the output and efficiency of the motor can be maximized by strengthening the magnetic field.

1 is a perspective view of a motor according to the present invention. It is a disassembled perspective view with respect to the motor of FIG. FIG. 2 is a perspective view of the motor of FIG. 1 with the cover assembly removed. FIG. 3 is an extracted plan view of main parts showing an excitation pole, an armature core, and a brush for explaining the present invention. It is a perspective view of the state which combined the armature core and commutator by the Example of this invention. It is a top view of the state which combined the armature core and commutator of this invention. It is a top view which shows the state by which the coil was wound by the armature core of this invention. It is a top view which shows the commutator of this invention. It is a coil connection diagram for demonstrating the winding method of the coil of this invention.

  Hereinafter, preferred embodiments of a motor according to the present invention will be described in detail with reference to the accompanying drawings.

  1 is a perspective view of an example motor according to the present invention, FIG. 2 is an exploded perspective view of the motor of FIG. 1, and FIG. 3 is a perspective view of the motor of FIG. 4 is an excerpted plan view of essential parts showing an excitation pole, an armature core, and a brush for explaining the present invention, and FIG. 5 is a perspective view of a state in which an armature core and a commutator according to an embodiment of the present invention are combined. 6 is a plan view of a state in which the armature core of the present invention and a commutator are combined, FIG. 7 is a plan view of a state in which a coil is wound around the armature core of the present invention, and FIG. It is a top view which shows a child.

  1 to 8, a motor according to an embodiment of the present invention includes a cover assembly 10, an armature assembly 20, a yoke assembly 30, and a lower housing 40. The motor 50 illustrated in FIG. Is a blower fan added to the DC motor of the present invention.

  The yoke assembly 30 includes a plurality of exciting poles 32 inside a yoke cylindrical body 31.

  The excitation pole 32 includes two pairs of quadrupole magnets, that is, a first N pole P1, a first S pole P2, a second N pole P3, and a second S pole P4, and extends around the inner side surface of the yoke cylindrical body 31. Are arranged sequentially while maintaining a constant interval.

  The armature assembly 20 includes an armature core 21 having a plurality of pole teeth 22 around which coils 60 that interact with the plurality of excitation poles 32 are wound, and is positioned below the armature core 21, and the pole teeth 22. Correspondingly, a commutator 24 having the same number of commutator pieces 25 is included, and a coil connection hook 25 </ b> A bent outward is formed on the upper part of each commutator piece 25.

  Hereinafter, in the following description, the coil connection hook 25A to which the coil 60 is connected is electrically connected to the commutator piece 25. In fact, even if the coil 60 is connected to the coil connection hook 25A, in the description, the commutator will be described. The connection to the piece 25 will be described instead.

  A rotating shaft 26 penetrates through the center of the armature core 21 and the commutator 24. When the motor is operated, the armature core 21 and the commutator 24 rotate together with the rotating shaft 26. At this time, bearings for supporting the rotating shaft 26 so as to be rotatable may be provided above and below the rotating shaft 26.

  As shown in FIGS. 4 to 6, the armature core 21 includes pole teeth 22 formed by extending radially from a base. The total number of pole teeth 22 may be 24. The second pole teeth T2 and the third pole teeth are spaced at regular intervals clockwise (or counterclockwise) with reference to the first pole teeth T1. T3, fourth pole tooth T4, fifth pole tooth T5, sixth pole tooth T6, seventh pole tooth T7, eighth pole tooth T8, ninth pole tooth T9, tenth pole tooth T10, eleventh pole tooth T11, 12th pole tooth T12, 13th pole tooth T13, 14th pole tooth T14, 15th pole tooth T15, 16th pole tooth T16, 17th pole tooth T17, 18th pole tooth T18, 19th pole tooth T19, The 20th pole tooth T20, the 21st pole tooth T21, the 22nd pole tooth T22, the 23rd pole tooth T23, and the 24th pole tooth T24 are formed.

  A coil 60 is wound around each pole tooth 22, and torque is generated through interaction with the excitation pole 32 when a current is applied to the coil 60. A specific winding method related to this will be described later with reference to FIG.

  Meanwhile, one slot is formed between the pole teeth 22 and the pole teeth 22. That is, a first slot S1 is formed between the first pole tooth T1 and the second pole tooth T2, and a second slot S2 is formed between the second pole tooth T2 and the third pole tooth T3. Similarly, a third slot S3, a fourth slot S4, a fifth slot S5, a sixth slot S6, a seventh slot S7, an eighth slot S8, and a ninth slot S9 are disposed between the adjacent pole teeth 22 and the pole teeth 22. , 10th slot S10, 11th slot S11, 12th slot S12, 13th slot S13, 14th slot S14, 15th slot S15, 16th slot S16, 17th slot S17, 18th slot S18, 19th slot S19 , 20th slot S20, 21st slot S21, 22nd slot S22, 23rd slot S23, and 24th slot S24 are formed.

  The commutator 24 may include a commutator piece 25 including the coil connection hook 25 </ b> A, and the commutator 24 may be disposed below the lower armature core 21. The commutator pieces 25 may be configured in the same number corresponding to the pole teeth 22, that is, 24 pieces. Specifically, with reference to the first commutator piece C1 positioned below the first pole tooth T1, the second commutator piece C2 is spaced at regular intervals in the clockwise or counterclockwise manner, similar to the pole tooth 22. , Third commutator piece C3, fourth commutator piece C4, fifth commutator piece C5, sixth commutator piece C6, seventh commutator piece C7, eighth commutator piece C8, ninth commutator piece C9, 10th commutator piece C10, 11th commutator piece C11, 12th commutator piece C12, 13th commutator piece C13, 14th commutator piece C14, 15th commutator piece C15, 16th commutator piece C16, 17 commutator piece C17, 18th commutator piece C18, 19th commutator piece C19, 20th commutator piece C20, 21st commutator piece C21, 22nd commutator piece C22, 23rd commutator piece C23, and A 24 commutator piece C24 is formed. The commutator pieces 25 are electrically insulated from each other, and the commutator pieces 25 are electrically connected to the coil connection hooks 25 </ b> A on which the coils 60 formed radially on the commutator pieces 25 are applied. .

  In the embodiment of the present invention described above, four excitation poles 32, 24 pole teeth 22 and 24 commutator pieces 25 are illustrated, but the present invention is not limited to this, and is necessary. The number of the excitation poles 32, the pole teeth 22, and the commutator pieces 25 may vary depending on the case.

  A power supply connector 70 may be attached below one side of the yoke cylinder 31. A brush 80 is fixedly installed inside the yoke assembly 30. The brush 80 selectively contacts the commutator 24 as the armature assembly 20 rotates, and the coil 80 passes through the commutator 24 in contact with the pins of the power supply connector 70. 60 to allow current to flow. The brush 80 includes a pair of a first brush 81 and a second brush 82, and the first brush 81 and the second brush 82 are disposed at an angle of 90 ° to each other.

  In the DC motor having such a configuration, the winding structure and method of the coil 60 will be specifically described with reference to FIGS.

  First, a coil winding structure according to an embodiment of the present invention includes first to twelfth coil winding groups (N1 to N12), and each coil winding group Nn has four stages (n-1, n-). 2, n-3, n-4) form one winding group.

  Specifically, the first coil winding group N1 is in the first stage, and the coil starts from the first commutator piece C1 (winding 1-1 stage). In the second stage, the coil starting from the first commutator piece C1 is connected to the thirteenth commutator piece C13 (winding stage 1-2). In the third stage, the first pole tooth T1, the 24th pole tooth T24, the 23rd pole tooth T23, the 22nd pole tooth T22 and the 21st pole tooth T21 are wound at intervals of 5 pitches from the first pole tooth T1. After winding several times and skipping the 7-pitch interval, the 13th pole tooth T13, the 12th pole tooth T12, the 11th pole tooth T11, and the 10th pole tooth are again at 5 pitch intervals from the 13th pole tooth T13. Wind the T10 and the ninth pole tooth T9 by the number of windings (winding 1-3 stage). In the fourth stage, the coil is wound at an interval of 5 pitches and then connected to the 24th commutator piece C24 (winding stage 1-4). Thus, the first coil winding group N1 is formed. In the present invention, the direction in which the winding of the coil travels is preferably a reverse winding that proceeds in the opposite direction from the numbered direction of each pole tooth, slot and commutator piece. The number of windings wound at 5 pitches is not particularly limited, but is preferably wound twice or more.

  The second coil winding group N2 is in the first stage, and the coil starts from the 24th commutator piece C24 (winding 2-1 stage). In the second stage, the coil starting from the 24th commutator piece C24 is connected to the 12th commutator piece C12 (winding stage 2-2). In the third stage, the 24th pole tooth T24, the 23rd pole tooth T23, the 22nd pole tooth T22, the 21st pole tooth T21 and the 20th pole tooth T20 are wound at intervals of 5 pitches from the 24th pole tooth T24. After winding the number of wires and skipping the 7-pitch interval, the twelfth pole tooth T12, the eleventh pole tooth T11, the tenth pole tooth T10, and the ninth pole tooth are also spaced at five pitch intervals from the twelfth pole tooth T12. The T9 and the eighth pole tooth T8 are wound by the number of windings (winding stage 2-3). In the fourth stage, the coil is wound at intervals of 5 pitches and then connected to the 23rd commutator piece C23 (winding stage 2-4). In this way, the second coil winding group N2 is formed.

The third coil winding group N3 is in the first stage, and the coil starts from the 23rd commutator piece C23 (winding stage 3-1). In the second stage, the coil starting from the 23rd commutator piece C23 is connected to the 11th commutator piece C11 (winding stage 3-2). In the third stage, the twenty-third pole tooth T23, the twenty-second pole tooth T22, the twenty-first pole tooth T21, the twentieth pole tooth T20, and the nineteenth pole tooth T19 are wound at intervals of five pitches from the twenty-third pole tooth T23. After winding as many as the number of wires and skipping the 7-pitch interval, the 11th pole tooth T11, the 10th pole tooth T10, the 9th pole tooth T9, the 8th pole The teeth T8 and the seventh pole teeth T7 are wound by the number of windings (winding stage 3-3). In the fourth stage, the coil is wound at an interval of 5 pitches and then connected to the 22nd commutator piece C22 (winding stage 3-4). In this way, the third coil winding group N3 is formed.

  The fourth coil winding group N4 is in the first stage, and the coil starts from the 22nd commutator piece C22 (winding stage 4-1). In the second stage, the coil starting from the 22nd commutator piece C22 is connected to the 10th commutator piece C10 (winding stage 4-2). In the third stage, the 22nd pole tooth T22, the 21st pole tooth T21, the 20th pole tooth T20, the 19th pole tooth T19 and the 18th pole tooth T18 are wound at intervals of 5 pitches from the 22nd pole tooth T22. After winding the number of wires and skipping the 7-pitch interval, the 10th pole tooth T10, the 9th pole tooth T9, the 8th pole tooth T8, and the 7th pole tooth again from the 10th pole tooth T10 at 5 pitch intervals. Wind T7 and sixth pole tooth T6 by the number of windings (winding stage 4-3). In the fourth stage, the coil is wound at an interval of 5 pitches and then connected to the 21st commutator piece C21 (winding stage 4-4). By such a method, the fourth coil winding group N4 is formed.

  The fifth coil winding group N5 is in the first stage, and the coil starts from the 21st commutator piece C21 (winding stage 5-1). In the second stage, the coil starting from the twenty-first commutator piece C21 is connected to the ninth commutator piece C9 (winding stage 5-2). In the third stage, the twenty-first pole tooth T21, the twentieth pole tooth T20, the nineteenth pole tooth T19, the eighteenth pole tooth T18, and the seventeenth pole tooth T17 are wound at intervals of 5 pitches from the twenty-first pole tooth T21. After winding the number of wires and skipping the 7-pitch interval, the 9th pole tooth T9, the 8th pole tooth T8, the 7th pole tooth T7, the 6th pole tooth again, at the 5th pitch interval from the 9th pole tooth T9. Wind T6 and fifth pole tooth T5 by the number of windings (winding step 5-3). In the fourth stage, the coil is wound at intervals of 5 pitches and then connected to the twentieth commutator piece C20 (winding stage 5-4). In this way, the fifth coil winding group N5 is formed.

  The sixth coil winding group N6 is the first stage, and the coil starts from the twentieth commutator piece C20 (winding stage 6-1). In the second stage, the coil starting from the twentieth commutator piece C20 is connected to the eighth commutator piece C8 (winding stage 6-2). In the third stage, the 20th pole tooth T20, the 19th pole tooth T19, the 18th pole tooth T18, the 17th pole tooth T17 and the 16th pole tooth T16 are wound at intervals of 5 pitches from the 20th pole tooth T20. After winding a number of wires and skipping the 7-pitch interval, the 8th pole tooth T8, the 7th pole tooth T7, the 6th pole tooth T6, and the 5th pole tooth are again at 5 pitch intervals from the 8th pole tooth T8. Wind the T5 and the fourth pole tooth T4 by the number of windings (winding stage 6-3). In the fourth stage, the coil is wound at intervals of 5 pitches and then connected to the 19th commutator piece C19 (winding stage 6-4). Thus, the sixth coil winding group N6 is formed.

  The seventh coil winding group N7 is the first stage, and the coil starts from the nineteenth commutator piece C19 (winding stage 7-1). In the second stage, the coil starting from the nineteenth commutator piece C19 is connected to the seventh commutator piece C7 (winding stage 7-2). In the third stage, the nineteenth pole tooth T19, the eighteenth pole tooth T18, the seventeenth pole tooth T17, the sixteenth pole tooth T16 and the fifteenth pole tooth T15 are wound at intervals of 5 pitches from the nineteenth pole tooth T19. After winding the number of wires and skipping the 7-pitch interval, the 7-pole tooth T7 and the 5th-pole tooth T6, 5th-pole tooth T6, 5th-pole tooth T5, 4th-pole tooth Wind T4 and third pole teeth T3 by the number of windings (winding step 7-3). In the fourth stage, the coil is wound at an interval of 5 pitches and then connected to the 18th commutator piece C18 (winding stage 7-4). In this way, the seventh coil winding group N7 is formed.

  The eighth coil winding group N8 is in the first stage, and the coil starts from the eighteenth commutator piece C18 (winding stage 8-1). In the second stage, the coil starting from the eighteenth commutator piece C18 is connected to the sixth commutator piece C6 (winding stage 8-2). In the third stage, the 18th pole tooth T18, the 17th pole tooth T17, the 16th pole tooth T16, the 15th pole tooth T15 and the 14th pole tooth T14 are wound at intervals of 5 pitches from the 18th pole tooth T18. After winding the number of wires and skipping the 7-pitch interval, the 6-pole tooth T6, the 5th-pole tooth T5, the 4th-pole tooth T4, and the 3rd-pole tooth at the 5-pitch interval. Wind T3 and second pole teeth T2 by the number of windings (winding step 8-3). In the fourth stage, the coil is wound at intervals of 5 pitches and then connected to the 17th commutator piece C17 (winding stage 8-4). In this way, the eighth coil winding group N8 is formed.

  The ninth coil winding group N9 is in the first stage, and the coil starts from the 17th commutator piece C17 (winding stage 9-1). In the second stage, the coil starting from the seventeenth commutator piece C17 is connected to the fifth commutator piece C5 (winding stage 9-2). In the third stage, the 17th pole tooth T17, the 16th pole tooth T16, the 15th pole tooth T15, the 14th pole tooth T14 and the 13th pole tooth T13 are wound at intervals of 5 pitches from the 17th pole tooth T17. After winding the number of wires and skipping the 7-pitch interval, the fifth pole tooth T5 is also spaced at 5 pitch intervals, that is, the fifth pole tooth T5, the fourth pole tooth T4, the third pole tooth T3, the second pole tooth. Wind the T2 and the first pole teeth T1 by the number of windings (winding step 9-3). In the fourth stage, the coil is wound at intervals of 5 pitches and then connected to the sixteenth commutator piece C16 (winding stage 9-4). Thus, the ninth coil winding group N9 is formed.

  The tenth coil winding group N10 is the first stage, and the coil starts from the sixteenth commutator piece C16 (winding stage 10-1). In the second stage, the coil starting from the sixteenth commutator piece C16 is connected to the fourth commutator piece C4 (winding stage 10-2). In the third stage, the sixteenth pole tooth T16, the fifteenth pole tooth T15, the fourteenth pole tooth T14, the thirteenth pole tooth T13 and the twelfth pole tooth T12 are wound at intervals of 5 pitches from the sixteenth pole tooth T16. After winding the number of wires and skipping the 7-pitch interval, the 4th pole tooth T4, the 5th pitch interval, that is, the 4th pole tooth T4, the 3rd pole tooth T3, the 2nd pole tooth T2, the 1st pole tooth The T1 and the 24th pole teeth T24 are wound by the number of windings (winding step 10-3). In the fourth stage, the coil is wound at intervals of 5 pitches and then connected to the fifteenth commutator piece C15 (winding stage 10-4). In this manner, the tenth coil winding group N10 is formed.

  The eleventh coil winding group N11 is the first stage, and the coil starts from the fifteenth commutator piece C15 (winding stage 11-1). In the second stage, the coil starting from the fifteenth commutator piece C15 is connected to the third commutator piece C3 (winding stage 11-2). In the third stage, the 15th pole tooth T15, the 14th pole tooth T14, the 13th pole tooth T13, the 12th pole tooth T12 and the 11th pole tooth T11 are wound at intervals of 5 pitches from the 15th pole tooth T15. After winding the number of wires and skipping the 7-pitch interval, the third pole tooth T3 is also spaced at 5 pitch intervals, that is, the third pole tooth T3, the second pole tooth T2, the first pole tooth T1, and the 24th pole tooth. The T24 and the 23rd pole tooth T23 are wound by the number of windings (winding step 11-3). In the fourth stage, the coil is wound at an interval of 5 pitches and then connected to the fourteenth commutator piece C14 (winding stage 11-4). Thus, the eleventh coil winding group N10 is formed.

  The twelfth coil winding group N12 is in the first stage, and the coil starts from the fourteenth commutator piece C14 (winding stage 12-1). In the second stage, the coil starting from the fourteenth commutator piece C14 is connected to the second commutator piece C2 (winding stage 12-2). In the third stage, the fourteenth pole tooth T14, the thirteenth pole tooth T13, the twelfth pole tooth T12, the eleventh pole tooth T11 and the tenth pole tooth T10 are wound at intervals of 5 pitches from the fourteenth pole tooth T14. After winding the number of wires and skipping the 7-pitch interval, the second pole tooth T2 is also spaced at 5 pitch intervals, that is, the second pole tooth T2, the first pole tooth T1, the 24th pole tooth T24, the 23rd pole tooth. Wind T23 and 22nd pole tooth T22 by the number of windings (winding step 12-3). In the fourth stage, the coil is wound at intervals of 5 pitches and then connected to the thirteenth commutator piece C13 (winding stage 12-4). In this way, the twelfth coil winding group N10 is formed.

  When the winding to the twelfth coil winding group N10 is completed in this way, the coil is connected from the thirteenth commutator piece C13 to the first commutator piece C1, and the first to twelfth coil winding groups are Are electrically connected to form one winding pattern. The windings of all coil winding groups may be repeated as required by the motor specifications or need. Such a coil winding pattern is shown in the following table.

If the winding pattern structure of the coil described above is generalized, it can be expressed by the following equation.

Here, n is a natural number and has a value of 1 to 12.

  The coil 60 wound around each pole tooth 22 of the present invention winds 5 pitches, skips 7 pitches, and then winds pole teeth having intervals of 5 pitches to form one coil winding group. The coil winding group connected to the commutator piece 25 is continuously and sequentially repeated through the next slot of the armature core 21 to provide a winding structure of the Nth coil winding group. be able to.

  In the present invention having such a configuration, the coil 60 connected to the commutator piece 25 is continuously wound around the pole teeth 22 so as to form a coil winding group so as to pass through the slot of the armature core 21. Are connected to the commutator piece 25, and the other coil winding groups are sequentially wound in the reverse direction in the slot order by the number of slots (number of pole teeth) of the armature core 21, so that the pole teeth 22 A winding pattern in which the coil 60 is wound upward and downward is provided. Therefore, the winding operation for winding the respective pole teeth 22 through the respective slots is performed stepwise and sequentially, and the winding operation of the coil 60 is performed very easily and quickly, thereby improving the motor assembly. The cost of manufacturing the motor is reduced, and each coil 60 connected to the commutator piece 25 is designed on the upper, lower, and armature cores 21 of each pole tooth having a 5-pitch, 7-pitch, and 5-pitch spacing. By winding each slot so that the coil 60 is distributed in a balanced manner by the first to Nth coil winding groups, the winding distribution of the coil 60 is above and below the pole teeth 22 having a constant interval, and Since it is uniformly distributed while concentrating on the slots, the magnetic field generated by the association with the excitation pole 32 is further strengthened, and the output and efficiency of the motor can be maximized.

It should be understood that the detailed description of the present invention described above is merely given for the purpose of understanding the present invention and is not intended to define the scope of the present invention. The scope of the present invention is defined by the following appended claims, and all simple modifications and changes within this scope should be understood as belonging to the scope of the present invention.

Claims (4)

Cover assembly 10;
A yoke assembly 30 having a plurality of excitation poles 32 disposed between the cover assembly 10 and the lower housing 40;
The armature core 21 having a plurality of pole teeth 22 around which the coil 60 interacting with the excitation pole 32 is wound, and the same number of commutator pieces 25 corresponding to the excitation pole 32 are provided below the armature core 21. An armature assembly 20 including a commutator 24; and a brush 80 that is disposed around the commutator 24 and selectively contacts the commutator 24 as the armature assembly 20 rotates. In the coil winding structure of a DC motor,
The coil 60 wound around each of the pole teeth 22 is wound around the five pole teeth 22 and is wound once again on the five pole teeth 22 at intervals of the seven pole teeth 22. The vehicle is characterized in that a wire group is connected to the commutator piece 25 and the coil winding group connected to the commutator piece 25 is continuously repeated through the next slot of the armature core 21. DC motor coil winding structure. The coil winding group includes first to n-th coil winding groups (where n is a natural number of 12 or less),
The n-th coil winding group starts from the n-th commutator piece (however, when n is 2 or more, starts from the {24- (n-2)}-th commutator piece), {12- (n -2)} connected to the commutator piece and wound at least twice at 5 pitch intervals from the a-th pole tooth [where a is n when n is 1 and n is 2 or more In the case of {24− (n−2)}], the b th pole is wound at least twice at 5 pitch intervals {where b is (14−n)} and {24− (n -1)} The coil winding structure for a DC motor for vehicles according to claim 1, wherein the coil winding structure is connected to a commutator piece.   The coil winding structure for a DC motor for a vehicle according to claim 2, wherein the windings of the five pitch intervals are wound in the reverse direction. In a coil winding method for a vehicle DC motor having n commutator pieces and n pole teeth (where n is a natural number),
The beginning of the coil at the nth commutator thin film (if n is 2 or more, start with the {24- (n-2)} commutator piece);
Connecting the coil to a {12- (n-2)} commutator piece;
The coil is wound at least twice at a pitch of 5 from the a-th tooth. [Where a is n when n is 1, and when n is 2 or more, {24− (n−2 )}], A stage wound at least twice from the b-th pole tooth at 5 pitch intervals {where b is (14-n)}; and the coil is {24- (n-1) } Connecting to the commutator piece;
A coil winding method for a DC motor for vehicles, comprising: