CN218678610U

CN218678610U - Motor stator and motor with same

Info

Publication number: CN218678610U
Application number: CN202222084563.6U
Authority: CN
Inventors: 彭光明; 吉成浩; 金万兵; 罗明明
Original assignee: Shanghai Moons Electric Co Ltd
Current assignee: Shanghai Moons Electric Co Ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2023-03-21
Anticipated expiration: 2032-08-09

Abstract

The utility model relates to a motor stator and have motor of this stator, the skeleton includes preceding skeleton, back skeleton and by preceding skeleton and the stator core of back skeleton parcel, eight grooves are equipped with eight bulges respectively between the main pole of back skeleton, are first bulge ~ eighth bulge respectively, be equipped with the PIN needle that is used for motor lead wire end kinking line to cross the line use on the partial bulge in eight bulges. Compared with the prior art, the utility model has the advantages of it is following: the distance of the motor lead is reduced, the loosening of the wire end is avoided, and the reliability of the motor is greatly improved.

Description

Motor stator and motor with same

Technical Field

The utility model relates to a motor especially relates to a motor stator and have motor of this stator.

Background

As shown in fig. 1 and 2, a stator of an existing stepping motor includes a stator core wrapped by a front frame and a rear frame at two ends of the stator. When the stator is wound, only one end of the stator is generally subjected to wire mixing operation, so that a protruding part structure is designed at one end of the framework at the front end and the rear end, the wire ends of the two-phase winding at the outgoing side of the stator are generally welded through DCBA, and then the wire ends are connected to a wiring terminal of a motor. If the wire ends are directly welded to the connecting terminals, namely the four connecting terminals a and C and B and D above the stator as shown in fig. 3, the wires are too far apart or two leads intersect each other as a principle of near connection, and in the process, the tension of the leads may be insufficient, and the leads are loosened and thrown, so that the reliability of the winding and the leading of the motor is reduced.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a motor stator and a motor having the same, which overcome the above-mentioned drawbacks of the prior art.

The purpose of the utility model can be realized through the following technical scheme:

according to the utility model discloses an aspect provides a motor stator, including preceding skeleton, back skeleton and by preceding skeleton and the stator core of back skeleton parcel, be equipped with eight bulges respectively in eight grooves between the main pole of back skeleton, be first bulge ~ eighth bulge respectively, be equipped with the PIN needle that is used for motor lead wire end kinking to cross the line use on the partial bulge in eight bulges.

Preferably, the eighth, first, second and third bulges of the eight bulges are respectively provided with PIN needles A, PIN, B, PIN, C and D.

Preferably, the PIN is square.

Preferably, A1-A4 are 4 main poles of a phase, B1-B4 are 4 main poles of B phase, and slots I to VIII are slots between 8 main poles, and a first terminal of the winding of the phase a is connected to PIN C, and a second terminal of the winding of the phase a is connected to PIN a.

Preferably, the PIN D is connected when the third terminal of the winding of the phase B is connected, and the PIN B is connected when the fourth terminal of the winding of the phase B is connected.

As a preferable technical solution, the first end and the second end of the winding of the phase a are respectively arranged in the slot I and the slot VII; and the third wire end and the fourth wire end of the winding of the B phase are respectively arranged in the groove II and the groove VIII.

As a preferred technical solution, the first stub and the second stub of the winding of the a-phase are respectively disposed in the slot II and the slot VIII, and the third stub and the fourth stub of the winding of the B-phase are respectively disposed in the slot III and the slot I.

According to a second aspect of the present invention, there is provided an electric motor, comprising the motor stator.

Compared with the prior art, the utility model has the advantages of it is following:

1. the PIN needle does not need to be additionally designed for winding the thread end;

2. two motor stator lead wiring schemes are designed;

3. the installed PIN needle can play a role in electric conduction, and can be used as a wire passing function during stator winding, so that the distance of a motor lead is reduced, the condition that a wire end is not loosened is avoided, and the reliability of the motor is greatly improved.

Drawings

FIG. 1 is a schematic diagram of a rear frame structure of a stator of a conventional stepping motor;

FIG. 2 is a schematic view of a stator front frame structure of a conventional stepping motor;

FIG. 3 is a schematic view of the connection between the wire head and the wire connecting terminal of the conventional stepping motor;

fig. 4 (a) is a schematic structural diagram of a motor stator according to the present invention;

fig. 4 (b) is another view angle structure diagram of the motor stator of the present invention;

fig. 5 is a front view of the rear frame of the motor stator of the present invention;

fig. 6 is a side view of the rear frame of the motor stator of the present invention;

fig. 7 is a wiring diagram of a motor stator lead according to embodiment 1 of the present invention;

fig. 8 is a wiring diagram of a motor stator lead according to embodiment 2 of the present invention.

Wherein 1 is preceding skeleton, 2 is the back skeleton, 3 is stator core, 4 are first end of a thread, 5 are the second end of a thread, 6 is the third end of a thread, 7 is the fourth end of a thread, A1-A4 are 4 main poles of A looks, B1-B4 are 4 main poles of B looks, groove I ~ groove VIII are 8 grooves between main poles, 21 ~ 28 are first bulge ~ eighth bulge, P is the PIN needle, 281 is PIN needle A,211 is PIN needle B,221 is PIN needle C,231 is PIN needle D.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 4, a motor stator includes a front frame 1 and a rear frame 2, and a stator core 3 wrapped by the front frame 1 and the rear frame 2, as shown in fig. 5 to 6, first to eighth protrusions 21 to 28 are provided in grooves I to VIII between main poles of the rear frame 2, and PIN a281, PIN B211, PIN C221, and PIN D231 for winding and fixing a motor lead wire end are respectively provided on the eighth protrusion 28, the first protrusion 21, the second protrusion 22, and the third protrusion 23. The PIN needles a281, B211, C221 and D231 are square in shape.

The utility model discloses set for 4 main poles of A1-A4 for A looks, B1-B4 is 4 main poles of B looks, and groove I ~ groove VIII are 8 grooves between the main poles, and this wire winding method includes: when the first wire end 4 and the second wire end 5 at two ends of the A-phase winding are connected, a PIN needle C221 and a PIN needle A281 are respectively connected; and the third wire head 6 and the fourth wire head 7 at two ends of the B-phase winding are connected with a PIN PIN D231 and a PIN PIN B211 respectively when wiring.

As shown in fig. 7, the first stub 4 and the second stub 5 at two ends of the a-phase winding are respectively disposed in the slot I and the slot VII, and the third stub 6 and the fourth stub 7 at two ends of the B-phase winding are respectively disposed in the slot II and the slot VIII.

The winding method of the embodiment comprises the following steps:

1. the first thread head 4 of the phase A starts the winding of each main pole of the phase A after directly winding the PIN needle C221 on the second bulge 22 for several circles, after the four main pole windings of the phase A are finished, the second thread head 5 appears in the groove VII, and the second thread head 5 directly winds the PIN needle A281 on the eighth bulge 28 to finish the winding of the phase A of the motor;

2. the third winding 6 of the phase B starts winding of each main pole of the phase B after being wound on the PIN D231 on the third protruding portion 23 for several turns, and after the four main pole windings of the phase B are finished, the fourth winding 7 appears in the stator slot VIII, and the fourth winding 7 is directly wound on the PIN B211 on the first protruding portion 21, so that winding of the phase B of the motor is completed.

In the winding mode of the stepping motor, a PIN needle does not need to be additionally designed for winding the thread end; the motor stator lead wiring scheme is designed, the installed PIN needle can play a conductive role, and meanwhile, the PIN needle can be used as a stator for winding wires, so that the distance of the motor lead is reduced, the condition that the wire end is not flexible is avoided, and the reliability of the motor is greatly improved.

Example 2

As shown in fig. 8, the first stub 4 and the second stub 5 at two ends of the a-phase winding are respectively arranged in the slot II and the slot VIII, and the third stub 6 and the fourth stub 7 at two ends of the B-phase winding are respectively arranged in the slot III and the slot I.

In the embodiment, a PIN needle does not need to be additionally designed to avoid overlong threading distance and loose thread end after winding, and the winding method of the embodiment comprises the following steps:

1. the winding of each main pole of the phase a is started after the phase a first thread end 4 is directly wound on the PIN C221 on the second bulge 22 for several circles, after the winding of the four main poles of the phase a is finished, the second thread end 5 appears in the groove VIII, and the second thread end 5 is directly wound on the PIN a281 on the eighth bulge 28 to complete the winding of the phase a of the motor;

2. the winding of the main poles of the B phase is started after the third stub 6 of the B phase is wound on the PIN D231 on the third bulge 23 for several turns, and after the winding of the four main poles of the B phase is finished, the fourth stub 7 appears in the slot I, and the fourth stub 7 is directly wound on the PIN B211 on the first bulge 21, so that the winding of the B phase of the motor is completed.

The rest is the same as example 1.

Example 3

The utility model also provides a motor, this motor includes the motor stator in

embodiment

1 or 2.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a motor stator, includes preceding skeleton (1), back skeleton (2) and by stator core (3) of preceding skeleton (1) and back skeleton (2) parcel, be equipped with eight bulges respectively in eight grooves between the main pole of back skeleton (2), be first bulge (21) -eighth bulge (28) respectively, its characterized in that, be equipped with PIN needle (P) that are used for motor lead wire end kinking to cross the line use on the partial bulge of eight bulges.

2. The motor stator according to claim 1, wherein a PIN a (281), a PIN B (211), a PIN C (221), and a PIN D (231) are provided on an eighth projection (28), the first projection (21), the second projection (22), and the third projection (23) of the eight projections, respectively.

3. The stator of claim 1, wherein the PIN is square in shape.

4. The stator of an electric machine according to claim 2, wherein A1-A4 are set as 4 main poles of a phase, B1-B4 are set as 4 main poles of B phase, and slots I-VIII are slots between 8 main poles, the first end (4) of the winding of a phase is connected with PIN C (221) when connected, and the second end (5) of the winding of a phase is connected with PIN a (281) when connected.

5. The stator of an electric machine according to claim 4, characterized in that the winding third terminals (6) of the B-phase are connected with PIN (231) and the winding fourth terminals (7) of the B-phase are connected with PIN (211).

6. The stator of an electric machine according to claim 5, characterized in that the winding of the A phase is provided with a first end (4) and a second end (5) respectively in slot I and slot VII; and the winding third wire head (6) and the winding fourth wire head (7) of the phase B are respectively arranged in the groove II and the groove VIII.

7. Stator according to claim 5, characterized in that the winding of phase A has a first stub (4) and a second stub (5) arranged in slots II and VIII, respectively, and the winding of phase B has a third stub (6) and a fourth stub (7) arranged in slots III and I, respectively.

8. An electrical machine comprising a stator according to any one of claims 1 to 7.