Winding group installation structure of motor

Abstract

The utility model discloses a winding group installation structure of a motor, comprising a circuit board which is provided with a first end face and a second end face which are deviated from each other; the plurality of winding groups are arranged on the first end face, each winding group comprises a coil, and the coils are attached to the first end face; the coil is provided with a first terminal and a second terminal; the first wiring end and the second wiring end penetrate through the second end face; the lug plate assembly comprises a first lug plate and a second lug plate, the first lug plate and the second lug plate are both attached to the second end face, and the first lug plate is electrically connected with the first terminal; the second lug plate is electrically connected with the second terminal. The coil is directly attached to the first end face of the circuit board, and the first lug plate and the second lug plate are attached to the second end face of the circuit board, so that the wiring structure and the wiring structure are simple, and the size is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field especially relates to a winding group mounting structure of motor. BACKGROUND

[0002] Traditional motor generally includes stator assembly and rotor assembly, and its stator assembly is usually made of stator core, and the stator core is wound with enameled wire, and an annular permanent magnet steel is arranged outside the stator core, and then the winding group on the stator core is connected with the circuit board to input current and generate magnetic field.

[0003] However, the coil structure wound on the stator core is very crowded and wiring is troublesome, and the stator assembly and the circuit board are arranged separately, resulting in a large volume of the motor. SUMMARY

[0004] In order to overcome at least one of the above-mentioned defects of the prior art, the utility model provides a winding group mounting structure of motor, wherein the coil is directly attached to the first end face of the circuit board, and the first and second terminal pieces are attached to the second end face of the circuit board, so that the wiring structure and the wiring structure are simple and the volume is reduced.

[0005] The utility model adopts the technical scheme to solve the problem:

[0006] A winding group mounting structure of motor, comprising,

[0007] A circuit board having a first end face and a second end face facing away from each other;

[0008] A plurality of winding groups are arranged on the first end face, and the winding group comprises a coil attached to the first end face; the coil has a first terminal and a second terminal; the first terminal and the second terminal are arranged on the second end face;

[0009] A terminal piece assembly comprising a first terminal piece and a second terminal piece, the first terminal piece and the second terminal piece are attached to the second end face, the first terminal piece is electrically connected to the first terminal, and the second terminal piece is electrically connected to the second terminal.

[0010] Further, the winding group is provided with three groups, the first terminal piece is provided with three, and the second terminal piece is provided with one; three winding groups each comprise two coils; in the same winding group, the first terminal of one of the coils is arranged on the second end face and electrically connected to the first terminal piece, the second terminal of the one coil is electrically connected to the first terminal of the other coil, and the second terminal of the other coil is arranged on the second end face and electrically connected to the second terminal piece.

[0011] Further, the contact point of the first terminal with the first terminal piece is a first terminal point; the contact point of the second terminal with the second terminal piece is a second terminal point; the three first terminal points and the three second terminal points are uniformly and circularly spaced around the central axis of the circuit board.

[0012] Further, the three first terminal pieces are each provided with a first terminal hole, and the first terminal passes through the second end surface and is inserted into the first terminal hole; the first terminal hole is formed as the first terminal point.

[0013] Further, the second terminal piece is provided with three second terminal holes; the second terminal passes through the second end surface and is inserted into the second terminal hole.

[0014] Further, the three first terminal holes and the three second terminal holes are uniformly and circularly spaced around the central axis of the circuit board.

[0015] Further, the first end surface is provided with a wire routing groove, and the first terminal between two coils of the same winding group is guided to the second terminal for electrical connection through the wire routing groove.

[0016] Further, the first terminal piece and the second terminal piece are both copper foil pieces.

[0017] Further, the first terminal piece comprises a circular segment and an arc segment, and the arc segment and the circular segment are connected to each other.

[0018] In summary, the utility model has the following technical effects:

[0019] 1. The wire heads and wire tails of the coils are guided out through the first terminal piece and the second terminal piece respectively, and since the first terminal piece and the second terminal piece are both attached to the circuit board, the attachment in a sheet structure is guided out to the control board of the motor body, the wiring surface is larger, and the structure is stable after wiring.

[0020] 2. The coils can be arranged in a row around a center from inside to outside, and then attached to the circuit board, and the coils arranged in a row from inside to outside can be attached to the first end surface of the circuit board, the coils are attached in a flat state, the thickness of the winding group on the first end surface of the circuit board after assembly is only the outer diameter size of the coil, the overall thickness of the circuit board is not too large, and therefore the overall volume is small. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the utility model;

[0022] Figure 2 is a structural schematic view of the circuit board and the coils of the utility model;

[0023] Figure 3 It is the structural schematic view of the first end face of the circuit board of the utility model;

[0024] Figure 4 It is the structural schematic view of the second end face of the circuit board of the utility model

[0025] Among them, the signification of the reference sign is as follows: 10, circuit board; 11, wiring groove; 12, first wiring hole; 13, second wiring hole; 20, coil; 21, first wiring end; 22, second wiring end; 31, first wiring sheet; 311, round sheet segment; 312, arc sheet segment; 32, second wiring sheet. DETAILED DESCRIPTION

[0026] In order to better understand and implement, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.

[0027] In the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore can not be understood as a limitation on the utility model.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing the specific embodiments and are not intended to limit the utility model.

[0029] Referring to Figures 1-4 The utility model discloses a winding group mounting structure of motor, including circuit board 10, a plurality of winding groups and wiring sheet subassembly, circuit board 10 is equipped with first end face and second end face, and first end face and second end face are located the two end faces of circuit board 10 and mutually diverge. The above-mentioned plurality of winding groups are set up in first end face, and winding group includes coil 20, and coil 20 is adhered to first end face, and coil 20 has first wiring end 21 and second wiring end 22, and first wiring end 21 and second wiring end 22 are all worn to second end face.

[0030] In addition, the lug assembly includes the first lug 31 and the second lug 32, the first lug 31 and the second lug 32 are attached to the second end surface, the first connecting end 21 of the coil 20 is connected with the first lug 31 after penetrating the second end surface, and the first connecting end 21 of the coil 20 is connected with the second lug 32 after penetrating the second end surface.

[0031] On the basis of the above structure, when the winding group mounting structure of the motor of the utility model is used, the winding group mounting structure is applied to the motor, the circuit board 10 integrates the working circuit of the winding group, a plurality of winding groups are arranged on the first end surface of the circuit board 10, the coil 20 of the winding group is attached to the first end surface of the circuit board 10, and the first connecting end 21 and the second connecting end 22 of the coil 20 can be guided to penetrate the second end surface and be connected with the first lug 31 and the second lug 32 respectively, so that the wire head and the wire tail of the coil 20 can be connected on the same end surface of the circuit board 10, and the connection of the coil 20 in the internal winding is prevented.

[0032] The wire head and the wire tail of the coil 20 are guided out through the first lug 31 and the second lug 32 respectively, since the first lug 31 and the second lug 32 are attached to the circuit board 10 in a sheet structure, the connection surface is larger after being guided to the control panel of the motor body, and the structure is stable after connection.

[0033] It is worth emphasizing that the coil 20 in the embodiment can be arranged in a ring from the inside to the outside, and then attached to the circuit board 10, the coil 20 arranged from the inside to the outside can be attached to the first end surface of the circuit board 10, the coil 20 is attached in a flat state, the thickness of the winding group on the first end surface of the circuit board 10 is only the outer diameter of the coil 20, the overall thickness of the circuit board 10 is not too large, so the overall volume is small.

[0034] It should be noted that the traditional stator core in the prior art plays a role in guiding the magnetic field, and the magnetic field can be guided after the coil 20 is wound on the stator core, so that a more stable magnetic field can be formed, so that the torque of the motor is large after application. The torque of the motor is small in the present application, but the stator core structure is cancelled, the internal structure of the motor is simplified, the volume of the motor is effectively reduced, and the cost is low.

[0035] The winding group in the embodiment is provided with three groups, the three winding groups are respectively a first winding group, a second winding group and a third winding group, and the first lug 31 is provided with three, and the second lug 32 is provided with one. Specifically, the three winding groups each include two coils 20, and the three winding groups can be used as three-phase winding groups of a three-phase motor in the prior art.

[0036] In the same group of winding groups, the first terminal 21 of one of the coils 20 is threaded through the second end surface and electrically connected to the first terminal 31, the second terminal 22 of one of the coils 20 is electrically connected to the first terminal 21 of the other coil 20, and the second terminal 22 of the other coil 20 is threaded through the second end surface and electrically connected to the second terminal 32, that is, in the same group of winding groups, only the first terminal 21 of one of the coils 20 extends through the first end surface into the second end surface, and the second terminal 22 of the other coil 20 extends through the first end surface into the second end surface, and the two coils 20 are electrically connected to each other.

[0037] In this way, two coils 20 form a group, and three winding groups are connected to three-phase current to generate a rotating magnetic field and provide stable rotating magnetic field force. Based on this structure, the coils 20 of the three winding groups are all laid flat on the first end surface of the circuit board 10 and are arranged at intervals in the circumferential direction of the first end surface. The two coils 20 of the same winding group are connected correspondingly. Although multiple coils 20 are distributed, the overall thickness of the circuit board 10 is not increased because the coils 20 are all laid flat on the first end surface.

[0038] In addition, the first terminals 21 of the three winding groups threaded through the second end surface can be connected to different first terminals 31 correspondingly, and the second terminals 22 of the three winding groups threaded through the second end surface can be connected to a second terminal 32 at the same time. The three first terminals 31 can be connected to three-phase current, and the second terminal 32 is concentratedly led out. On the basis of the structure with multiple coils 20, the wiring structure is still guided by the first terminal 31 and the second terminal 32, and the wire heads and wire tails of the coils 20 only need to be concentrated on the corresponding terminals to prevent wiring confusion.

[0039] Specifically, in the present embodiment, the contact point of the first terminal 21 and the first terminal 31 is the first terminal point, and the contact point of the second terminal 22 and the second terminal 32 is the second terminal point. When there are three winding groups, the first terminals 21 of the coils 20 of the three winding groups can be connected to the three first terminals 31 to form three first terminal points, and the second terminals 22 of the coils 20 of the three winding groups can form three second terminal points at the second terminal 32. The three first terminal points and the three second terminal points are uniformly and equally spaced in the circumferential direction around the central axis of the circuit board 10. The first terminal point in the middle is used as a neutral point, and the other two first terminal points are located on both sides to distinguish the wire heads of the respective phase circuits. Different terminals are equally distributed on the circuit board 10 to facilitate connection and form the same phase difference.

[0040] Specifically, the first wiring holes 12 are arranged on the three first wiring pieces 31, and the first wiring ends 21 of the three different winding groups pass through the second end surface and are inserted into the first wiring holes 12, so that the first wiring holes 12 form the first wiring points. The first wiring ends 21 are directly electrically connected after being inserted into the first wiring holes 12 in a plug-in manner, and are not easy to fall off.

[0041] Of course, the first wiring ends 21 can also pass through the first wiring pieces 31 and be welded after being wound around the wiring posts to form the first wiring points.

[0042] Further, the second wiring holes 13 are arranged on the second wiring pieces 32, and the second wiring ends 22 pass through the second end surface and are inserted into the second wiring holes 13. The second wiring ends 22 of the three different winding groups pass through the second end surface and are inserted into the second wiring holes 13, so that the first wiring holes 12 form the first wiring points. The first wiring ends 21 are directly electrically connected after being inserted into the first wiring holes 12 in a plug-in manner, and are not easy to fall off.

[0043] Based on the structure provided with the first wiring holes 12 and the second wiring holes 13, the three first wiring holes 12 and the three second wiring holes 13 are uniformly distributed around the central axis of the circuit board 10.

[0044] Further, based on the structure provided with the three winding groups, since one winding group includes at least two coils 20, the two coils 20 of a single winding group also need to be connected, and in order to prevent the line from being messy on the first end surface, a wire slot 11 can also be arranged on the first end surface, and the first wiring end 21 between the two coils 20 of the same winding group is guided to the second wiring end 22 through the wire slot 11. The wire slot 11 can extend along the circumference of the circuit board 10 in a circular arc shape, so that the coils 20 of a single winding group and the coils 20 are guided through the wire slot 11, which prevents the wire slot structure of the coils 20 from protruding from the first end surface and interfering with the rotation of the rotor.

[0045] Further, the first wiring pieces 31 and the second wiring pieces 32 are copper foil pieces. The copper foil has good conductivity and low resistance, which can reduce power loss.

[0046] Further, the first wiring piece 31 includes a circular segment and a circular arc segment 312, and the circular arc segment 312 is connected to the circular segment. In this way, the circular segment can increase the bonding area of the first wiring piece 31 and the circuit board 10, and the circular arc segment 312 can be adapted to the circumferential structure of the circuit board 10 for bonding. The structure of the first wiring piece 31 is more stable after bonding.

[0047] The technical means disclosed by the utility model scheme are not limited to the technical means disclosed by the above-mentioned embodiments, and also include technical schemes composed of any combination of the above technical features. It should be noted that, for ordinary skilled persons in the art, without departing from the principles of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered within the protection scope of the utility model.

Claims

1. A winding assembly mounting structure for an electric motor, characterized in that, The utility model relates to a circuit board, a plurality of winding groups are arranged on the first end face, the winding group includes a coil, the coil is attached to the first end face, the coil has a first wiring end and a second wiring end, the first wiring end and the second wiring end are both threaded to the second end face, a wiring piece assembly includes a first wiring piece and a second wiring piece, the first wiring piece and the second wiring piece are both attached to the second end face, the first wiring piece is electrically connected with the first wiring end, and the second wiring piece is electrically connected with the second wiring end. The winding group is provided with three groups, the first wiring piece is provided with three, the second wiring piece is provided with one, three winding groups all include two coils, in the same winding group, the first wiring end of one coil is threaded to the second end face and is electrically connected with the first wiring piece, the second wiring end of the one coil is electrically connected with the first wiring end of another coil, and the second wiring end of the another coil is threaded to the second end face and is electrically connected with the second wiring piece. The contact point of the first wiring end and the first wiring piece is a first wiring point, the contact point of the second wiring end and the second wiring piece is a second wiring point, and three first wiring points and three second wiring points are uniformly distributed around the center axis of the circuit board. Three first wiring holes are arranged on the first wiring piece, the first wiring end is threaded through the second end face and inserted into the first wiring hole, and the first wiring hole is formed as the first wiring point.

2. The coil mounting structure of the electric motor according to claim 1, characterized by A second wiring hole is arranged on the second wiring piece, and the second wiring end is threaded through the second end face and inserted into the second wiring hole.

3. The coil mounting structure of the electric motor according to claim 2, characterized by Three first wiring holes and three second wiring holes are uniformly distributed around the center axis of the circuit board.

4. The coil mounting structure of the electric motor according to claim 3, characterized by A wiring groove is arranged on the first end face, and the first wiring end between two coils of the same winding group is guided to the second wiring end through the wiring groove.

5. The coil mounting structure of the electric motor according to claim 4, characterized by The first wiring piece and the second wiring piece are both copper foil pieces.

6. The coil mounting structure of the electric motor according to claim 5, wherein The first wiring piece and the second wiring piece both include a circular segment and a circular arc segment, and the circular arc segment and the circular segment are connected with each other.

7. The coil mounting structure of the electric motor according to claim 2, characterized by ​ 8. The coil mounting structure of the electric motor according to any one of claims 1 to 7, characterized by ​ 9. The coil mounting structure of the electric motor according to any one of claims 1 to 7, characterized by ​

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