CN112751437A - Motor stator wiring structure - Google Patents

Abstract

A motor stator wiring structure comprises a silicon steel body, an insulating assembly, a plurality of coil groups and a plurality of electric connectors; the silicon steel body is provided with a yoke part and a plurality of magnetic poles arranged on the yoke part in a ring-shaped manner, the insulating assembly is arranged corresponding to each magnetic pole of the silicon steel body, each coil group is respectively wound on each magnetic pole and the insulating assembly of the silicon steel body and comprises a first-phase coil group, a second-phase coil group and a third-phase coil group, and each electric connector is overlapped on one side surface of the silicon steel body and is used for electrically connecting the first-phase coil group, the second-phase coil group and the third-phase coil group of each coil group respectively.

Description

Motor stator wiring structure

Technical Field

The present invention relates to a motor for vehicle, and more particularly to a motor stator wiring structure.

Background

In the conventional motor used for an electric vehicle as a power source, a three-phase alternating current and a coil are mainly used to manufacture a rotating magnetic field, so that a stator and a rotor of the motor generate relative rotation to serve as a power source.

The stator of the motor for vehicle is mainly formed by connecting cables to coil sets (i.e., U-phase, V-phase and W-phase coils), and then binding all the cables in a bundle in a serial or parallel manner, so that the bound cables can be randomly retained from one side of the stator of the motor or be hard-plugged into gaps on the stator, which not only causes the mixing of cables running on the wire, but also affects the difficulty of future maintenance. In particular, the current of the motor is relatively high when the power source of the motor needs to be further improved, so that the adopted cables are relatively thick, the cables bundled into a bundle occupy space more easily, and the cables are less prone to being jammed in the gap of the stator.

In view of the above, the present inventors have made extensive studies and use the same with the theory in order to improve and solve the above-mentioned drawbacks, and finally, have proposed a method for effectively improving the above-mentioned drawbacks with a reasonable design.

Disclosure of Invention

The main objective of the present invention is to provide a motor stator wiring structure, which can effectively arrange the wiring, so that the motor stator can easily perform the operations of welding and maintaining the coils, and the wiring can be prevented from being disordered to occupy unnecessary space.

In order to achieve the above object, the present invention provides a motor stator wiring structure, which includes a silicon steel body, an insulating assembly, a plurality of coil sets, and a plurality of electrical connectors; the silicon steel body is provided with a yoke part and a plurality of magnetic poles arranged on the yoke part in a ring-shaped manner, the insulating assembly is arranged corresponding to each magnetic pole of the silicon steel body, each coil group is respectively wound on each magnetic pole and the insulating assembly of the silicon steel body and comprises a first-phase coil group, a second-phase coil group and a third-phase coil group, and each electric connector is stacked on one side surface of the silicon steel body and is used for electrically connecting the first-phase coil group, the second-phase coil group and the third-phase coil group of each coil group respectively.

Preferably, wherein the series of poles is arranged on an outer or inner periphery of the yoke.

Preferably, each of the magnetic poles includes a tooth portion extending from the yoke portion and a shoe portion formed at an end of the tooth portion.

Preferably, the two insulation assemblies are arranged to sandwich the magnetic poles of the silicon steel body up and down respectively.

Preferably, each of the insulating members includes a plurality of insulating sleeves, each of the insulating sleeves has a sleeve portion and a flange corresponding to each of the magnetic poles, the sleeve portion is fitted over the tooth portion of each of the magnetic poles, and the flange corresponds to each of the shoe portions and protrudes from a distal end of the sleeve portion.

Preferably, each of the insulating sleeves is shaped like a n.

Preferably, the insulation element further comprises a wire trimming portion.

Preferably, the first, second and third coil sets correspond to a U-phase coil, a V-phase coil and a W-phase coil, respectively.

Preferably, the isoelectric connectors are each a circulating cable.

Preferably, wherein said isoelectric connectors are arranged in concentric circles and are arranged within said set of coils.

The motor stator wiring structure provided by the invention can effectively arrange the wiring, so that the motor stator can easily perform operations such as welding and maintenance of coils, and meanwhile, the wiring messy and unnecessary space occupation can be avoided.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.

FIG. 1 is an exploded perspective view of an unwound coil in accordance with a preferred embodiment of the present invention;

FIG. 2 is a perspective assembly view of the preferred embodiment of the present invention without the coil wound;

FIG. 3 is a schematic plan view of a wound coil in accordance with a preferred embodiment of the present invention;

FIG. 4 is a cross-sectional view of the electrical connection between the circulating cable and the coil according to the preferred embodiment of the present invention.

Reference numerals: silicon steel body 1

Yoke 10

Magnetic pole 11

Tooth 110

Boot 111

Insulating assembly 2

Insulating sleeve 20

Sleeve part 200

Flange 201

Whole line part 21

Parting line part 210

Space 211

Coil assembly 3

First-phase coil group 3a

First connection ends 30a, 31a

Second phase coil group 3b

Second connection ends 30b, 31b

Third-phase coil group 3c

Third connection ends 30c, 31c

Electrical connector 4

First cycle 40

Insulating sheath 400

Core 401

Breaking hole 402

Solder joint 403

Second cycle 41

Third cycle 42

A fourth cycle 43.

Detailed Description

For a better understanding of the features and technical aspects of the present invention, reference should be made to the following detailed description of the invention and accompanying drawings which are provided for purposes of illustration and description and are not intended to limit the invention.

Please refer to fig. 1, fig. 2 and fig. 3, which are a perspective exploded view and a perspective assembled view of an unwound coil of the present invention, and a plan view of a wound coil of the present invention, respectively. The present invention provides a motor stator wiring structure, which comprises a silicon steel body 1, an insulating assembly 2, a plurality of coil sets 3, and a plurality of electrical connectors 4; wherein:

the silicon steel body 1 includes a yoke 10 and a plurality of magnetic poles 11 annularly disposed on the yoke 10. In the embodiment of the present invention, the yoke 10 can be fixed on a wheel axle, and the magnetic poles 11 are arranged around the outer periphery of the yoke 10, so that a motor rotor (not shown) is arranged outside the magnetic poles 11 for induction; in addition, in other embodiments not shown in the drawings, the magnetic poles 11 may also be arranged around the inner periphery of the yoke 10 for induction of a motor rotor (not shown) arranged in the magnetic poles 11. Each magnetic pole 11 may include a tooth 110 extending from the yoke 10 and a shoe 111 formed at an end of the tooth 110, wherein the tooth 110 is used for winding the coil assembly 3.

The insulation member 2 is provided corresponding to each tooth 110. In the embodiment of the present invention, the insulation assembly 2 can be two and respectively clamped above and below each magnetic pole 11 of the silicon steel body 1, and each insulation assembly comprises a plurality of insulation sleeves 20 and a whole line portion 21, wherein each insulation sleeve 20 respectively corresponds to each magnetic pole 11 and has a sleeve portion 200 and a flange 201, the sleeve portion 200 can be in a "n" shape and is sleeved on the tooth portion 110 of the magnetic pole 11, and the flange 201 corresponds to each shoe portion 111 and protrudes out of the end of the sleeve portion 200.

As shown in fig. 3, the coil sets 3 are respectively wound on the magnetic poles 11 of the silicon steel body 1 and the insulating sleeve 20 of the insulating assembly 2, and respectively include at least one first-phase coil set 3a, at least one second-phase coil set 3b, and at least one third-phase coil set 3c, and the first, second, and third coil sets 3a, 3b, and 3c respectively correspond to the U-phase coil, the V-phase coil, and the W-phase coil to form a phase change of three-phase alternating current, so as to alternately generate S-poles and N-poles to induce and drive the rotor (not shown) to rotate. In addition, the number of the magnetic poles 11 corresponding to each coil set 3a, 3b, 3c can also be determined according to the actual requirement.

The electrical connectors 4 can be a circulating cable respectively, the circulating cable can be formed by connecting two ends of a cable oppositely to form a circulation, each coil set 3 is electrically connected with the electrical connectors 4 in a series or parallel manner, and the electrical connectors 4 are overlapped on any side surface of the silicon steel body 1; in the illustrated embodiment of the invention, the electrical connections 4 form a circulating cable arranged concentrically and in rows within the coil sets 3. In more detail, the electrical connectors 4 can be a first cycle 40, a second cycle 41, a third cycle 42, and a fourth cycle 43, respectively, and the first phase coil set 3a has two first connection ends 30a, 31a, the second phase coil set 3b has two second connection ends 30b, 31b, the third phase coil set 3c also has two third connection ends 30c, 31c, a first connection end 30a of the first phase coil set 3a, a second connection end 30b of the second phase coil set 3b, and a third connection end 30c of the third phase coil set 3c are all electrically connected to the first cycle 40, and another first connection end 31a of the first phase coil set 3a, another second connection end 31b of the second phase coil set 3b, and another third connection end 31c of the third phase coil set 3c are respectively electrically connected to the second cycle 41, a third cycle 42, and a fourth cycle 43, The third cycle 42 and the fourth cycle 43 are electrically connected to each other.

Referring to fig. 4, when the first connection terminals 30a, 30b, 30c and the second connection terminals 31a, 31b, 31c of the first, second and third coil sets 3a, 3b and 3c are electrically connected to the first, second, third and fourth loops 40, 41, 42 and 43 (fig. 4 illustrates the first loop 40), the portion of each loop 40, 41, 42 and 43 to be electrically connected to each coil set 3a, 3b and 3c is stripped off by the insulation sheath 400, so that the first connection terminals 30a, 30b and 30c and the second connection terminals 31a, 31b and 31c can be electrically contacted to the wire cores 401 in the insulation sheath 400, and the stripping is to cut a breaking hole 402 on the insulation sheath 400, so as to further weld the first connection terminals 30a (for example) to the wire cores 401 of the first loop 40 through the breaking hole 402, so as to achieve the purpose of electrical contact and fixed connection by the formed solder pads 403. Meanwhile, since the loops 40, 41, 42 and 43 can be arranged on one side of the silicon steel body 1 in order, the wiring or repairing operations such as welding with the coil sets 3a, 3b and 3c are relatively clear and easy, the whole wire is orderly without reserving too much length as the binding requirement, the material cost and unnecessary wire occupation can be saved, and the space occupied by the motor stator in configuration can be avoided.

It is worth mentioning that: as shown in fig. 1, the present invention can also provide that the whole line portion 21 of the insulating element 2 is used to provide the cycles 40, 41, 42 and 43 to be arranged on the whole line portion 21 in a concentric circle manner, and the whole line portion 21 can be provided with a plurality of isolation line portions 210, the isolation line portions 210 are arranged in a row at least to isolate the outside, so that the first cycle 40 surrounds the isolation line portions 210, the second cycle 41 surrounds the isolation line portions 210, and the remaining space 211 in the whole line portion 21 can be used for the third and fourth cycles 42 and 43 to be arranged concentrically and sequentially inwards.

Thus, the motor stator wiring structure of the present invention can be obtained by the above-mentioned structure.

In summary, the present invention can achieve the intended purpose, solve the conventional disadvantages, and completely meet the requirements of the patent application due to novelty and progress, and accordingly, the present invention is applied by the patent method and the patent application is referred to and examined in detail to ensure the rights of the inventor.

However, the above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, so that all changes in the equivalent techniques and means used in the description and drawings of the present invention are also included in the scope of the present invention.

Claims (10)

1. A motor stator wiring structure characterized by comprising:

the silicon steel body is provided with a yoke part and a plurality of magnetic poles arranged on the yoke part in a ring-shaped manner;

an insulating assembly disposed corresponding to each of the magnetic poles of the silicon steel body;

a plurality of coil sets respectively wound on the magnetic poles and the insulation assembly of the silicon steel body and including a first phase coil set, a second phase coil set and a third phase coil set; and

and the plurality of electric connectors are stacked on one side surface of the silicon steel body and are used for electrically connecting the first phase coil group, the second phase coil group and the third phase coil group respectively.

2. The motor stator wiring structure according to claim 1, wherein the magnetic poles are arranged around an outer or inner periphery of the yoke portion.

3. The motor stator wiring structure according to claim 1 or 2, wherein each of the magnetic poles includes a tooth portion extending from the yoke portion, and a shoe portion formed at an end of the tooth portion.

4. The motor stator wiring structure according to claim 3, wherein the insulating members are two and sandwich the poles of the silicon steel body up and down, respectively.

5. The motor stator wiring structure according to claim 4, wherein each of the insulating members comprises a plurality of insulating sleeves, each of the insulating sleeves has a sleeve portion and a flange corresponding to each of the magnetic poles, the sleeve portion is fitted over the tooth portion of each of the magnetic poles, and the flange corresponds to each of the shoe portions and protrudes from an end of the sleeve portion.

6. The motor stator wiring structure of claim 5, wherein each of the insulation sleeves is n-shaped.

7. The motor stator wiring structure according to claim 5, wherein the insulation member further comprises a rectifying portion.

8. The motor stator wiring structure according to claim 1, wherein the first, second and third coil groups correspond to a U-phase coil, a V-phase coil and a W-phase coil, respectively.

9. The motor stator wiring structure according to claim 1, wherein said electrical connecting members are a circulating cable, respectively.

10. The motor stator wiring structure according to claim 9, wherein the electrical connection members are arranged in a concentric circle and arranged in the coil groups.

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