A motor stator, a winding method and a motor having the stator

Abstract

The present application relates to a kind of motor stator, winding method and the motor with the stator, the framework includes front framework, rear framework and the stator core being wrapped by front framework and rear framework, eight slots in the main pole of rear framework are respectively provided with eight protrusions, respectively first protrusion~eighth protrusion, part protrusions in the eight protrusions are provided with PIN needle for motor lead wire tip winding over line use.Compared with prior art, the present application has the following advantages: reduce the distance of motor lead wire, avoid the situation of loose tip, greatly improve the reliability of motor, etc.

Description

Technical Field

[0001] The present invention relates to a motor, and in particular to a motor stator, a winding method and a motor having the stator. Background Art

[0002] The stator of the existing stepper motor is as follows Figure 1 and Figure 2 As shown in the figure, the front and rear frames at both ends of the stator wrap the stator core. When winding the stator, generally only one end will be wound, so the front and rear frames are designed with a protruding structure at one end. The wire ends of the two-phase windings on the stator output side are generally welded through DCBA and then transferred to the motor terminals. If the wire ends are directly welded to the terminals, that is, the four terminals A and C and B and D on the top of the stator, as shown in the figure, Figure 3 As shown in the figure, if the principle of wiring is followed nearby, the wire pulling distance may be too far or the two-phase leads may cross. In this process, the lead tension may be insufficient, causing the lead to loosen and fall, thereby reducing the reliability of the motor winding and lead. Summary of the Invention

[0003] The purpose of the present invention is to provide a motor stator, a winding method and a motor having the stator in order to overcome the defects of the above-mentioned prior art.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] According to a first aspect of the present invention, a motor stator is provided, comprising a front frame, a rear frame, and a stator core wrapped by the front frame and the rear frame, wherein eight protrusions are respectively provided in the eight slots between the main poles of the rear frame, namely the first protrusion to the eighth protrusion, and some of the eight protrusions are provided with PIN needles for winding and passing the motor lead wire ends.

[0006] As a preferred technical solution, the eighth protrusion, the first protrusion, the second protrusion and the third protrusion among the eight protrusions are respectively provided with a PIN needle A, a PIN needle B, a PIN needle C and a PIN needle D.

[0007] As a preferred technical solution, the PIN pin is square in shape.

[0008] As an optimal technical solution, A1-A4 are set as the 4 main poles of phase A, B1-B4 are set as the 4 main poles of phase B, slots I to VIII are set as the slots between the 8 main poles, and the first wire end of the winding of phase A is connected to PIN pin C when wiring, and the second wire end of the winding of phase A is connected to PIN pin A when wiring.

[0009] As a preferred technical scheme, the third winding head of the B-phase winding is connected with a PIN needle D when being connected, and the fourth winding head of the B-phase winding is connected with a PIN needle B when being connected.

[0010] As a preferred technical scheme, the first winding head and the second winding head of the A-phase winding are arranged in the groove I and the groove VII respectively, and the third winding head and the fourth winding head of the B-phase winding are arranged in the groove II and the groove VIII respectively.

[0011] As a preferred technical scheme, the first winding head and the second winding head of the A-phase winding are arranged in the groove II and the groove VIII respectively, and the third winding head and the fourth winding head of the B-phase winding are arranged in the groove III and the groove I respectively.

[0012] According to a second aspect of the present application, a winding method for the motor stator is provided, and the winding method comprises:

[0013] (1) After the first winding head of the A-phase winding is wound on a PIN needle C on the second protruding part for several turns, the winding of each main pole of the A-phase is started, and after the winding of the four main poles of the A-phase is completed, the second winding head distributed in the groove VII is wound on a PIN needle A on the eighth protruding part directly, and the winding of the A-phase of the motor is completed.

[0014] (2) After the third winding head of the B-phase winding is wound on a PIN needle D on the third protruding part for several turns, the winding of each main pole of the B-phase is started, and after the winding of the four main poles of the B-phase is completed, the fourth winding head distributed in the groove VIII is wound on a PIN needle B on the first protruding part directly, and the winding of the B-phase of the motor is completed.

[0015] According to a third aspect of the present application, a winding method for the motor stator is provided, and the winding method comprises:

[0016] (1) After the first winding head of the A-phase winding is wound on a PIN needle C on the second protruding part for several turns, the winding of each main pole of the A-phase is started, and after the winding of the four main poles of the A-phase is completed, the second winding head distributed in the groove VIII is wound on a PIN needle A on the eighth protruding part directly, and the winding of the A-phase of the motor is completed.

[0017] (2) After the third winding head of the B-phase winding is wound on a PIN needle D on the third protruding part for several turns, the winding of each main pole of the B-phase is started, and after the winding of the four main poles of the B-phase is completed, the fourth winding head distributed in the groove I is wound on a PIN needle B on the first protruding part directly, and the winding of the B-phase of the motor is completed.

[0018] According to a fourth aspect of the present application, a motor is provided, and the motor comprises the motor stator.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] 1. No need to design additional PIN pins for winding wire ends;

[0021] 2. Two motor stator lead connection schemes are designed;

[0022] 3. The installed PIN pins not only can play a conductive role, but also can be used as a wire passing role during stator winding, reducing the distance of motor leads and avoiding the situation of loose wire ends, greatly improving the reliability of the motor. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the existing step motor stator rear skeleton structure;

[0024] Figure 2 It is a schematic diagram of the existing step motor stator front skeleton structure;

[0025] Figure 3 It is a schematic diagram of the connection between the existing step motor wire end and the terminal;

[0026] Figure 4 It is a schematic diagram of the motor stator structure of the present application;

[0027] Figure 5 It is a front view of the motor stator rear skeleton of the present application;

[0028] Figure 6 It is a side view of the motor stator rear skeleton of the present application;

[0029] Figure 7 It is a motor stator lead connection diagram of embodiment 1 of the present application;

[0030] Figure 8 It is a motor stator lead connection diagram of embodiment 2 of the present application.

[0031] Wherein 1 is the front skeleton, 2 is the rear skeleton, 3 is the stator core, 4 is the first wire end, 5 is the second wire end, 6 is the third wire end, 7 is the fourth wire end, A1-A4 are four main poles of phase A, B1-B4 are four main poles of phase B, grooves I-VIII are grooves between eight main poles, 21-28 are first to eighth protruding parts, P is a PIN pin, 281 is PIN pin A, 211 is PIN pin B, 221 is PIN pin C, and 231 is PIN pin D. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0033] Example 1

[0034] like Figure 4 As shown, 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. Figures 5-6 As shown, the rear frame 2 has first to eighth protrusions 21 to 28 in slots I to VIII between the main poles. The eighth protrusion 28, first protrusion 21, second protrusion 22, and third protrusion 23 are respectively provided with PIN pins A281, B211, C221, and D231 for winding and securing motor lead wires. PIN pins A281, B211, C221, and D231 are square in shape.

[0035] The present invention sets A1-A4 as the four main poles of phase A, B1-B4 as the four main poles of phase B, and slots I to VIII as the slots between the eight main poles. The winding method includes: when wiring, the first wire end 4 and the second wire end 5 at both ends of the A-phase winding are connected to PIN pin C221 and PIN pin A281 respectively; when wiring, the third wire end 6 and the fourth wire end 7 at both ends of the B-phase winding are connected to PIN pin D231 and PIN pin B211 respectively.

[0036] like Figure 7 As shown, the first wire end 4 and the second wire end 5 at both ends of the A-phase winding are arranged in slot I and slot VII respectively, and the third wire end 6 and the fourth wire end 7 at both ends of the B-phase winding are arranged in slot II and slot VIII respectively.

[0037] The winding method of this embodiment includes:

[0038] 1. The first thread end 4 of phase A is directly wound around the PIN C221 on the second protrusion 22 for several turns, and then the winding of each main pole of phase A begins. After the winding of the four main poles of phase A is completed, the second thread end 5 appears in slot VII. The second thread end 5 is directly wound around the PIN A281 on the eighth protrusion 28, completing the winding of phase A of the motor.

[0039] 2、B phase third wire head 6 after winding several turns on PIN needle D231 on third protruding part 23, start winding of each main pole of B phase, after winding of four main poles of B phase, fourth wire head 7 appears in stator slot VIII, fourth wire head 7 directly winds on PIN needle B211 on first protruding part 21, complete winding of B phase of motor.

[0040] In the winding method of the stepping motor in the embodiment, the PIN needle for winding of the wire head is not additionally designed; the motor stator lead connection scheme is designed, the PIN needle installed can not only play the role of conducting electricity, but also be used as a wire passing part during winding of the stator, the distance of the motor lead is reduced, the situation of loose wire head is avoided, and the reliability of the motor is greatly improved.

[0041] Embodiment 2

[0042] As shown in Figure 8 the first wire head 4 and the second wire head 5 at two ends of the A phase winding are arranged in slots II and VIII respectively, and the third wire head 6 and the fourth wire head 7 at two ends of the B phase winding are arranged in slots III and I respectively.

[0043] The embodiment does not need to additionally design the PIN needle to avoid that the wire passing distance is too long and the wire head is loose after winding, and the winding method of the embodiment comprises the following steps:

[0044] 1、A phase first wire head 4 directly winds several turns on PIN needle C221 on second protruding part 22, and then starts winding of each main pole of A phase, after winding of four main poles of A phase, second wire head 5 appears in slot VIII, second wire head 5 directly winds on PIN needle A281 on eighth protruding part 28, and completes winding of A phase of motor;

[0045] 2、B phase third wire head 6 after winding several turns on PIN needle D231 on third protruding part 23, start winding of each main pole of B phase, after winding of four main poles of B phase, fourth wire head 7 appears in slot I, fourth wire head 7 directly winds on PIN needle B211 on first protruding part 21, complete winding of B phase of motor.

[0046] The rest is the same as in embodiment 1.

[0047] Embodiment 3

[0048] The application also provides a motor, which comprises the motor stator in embodiment 1 or 2.

[0049] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements shall be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A motor stator winding method, characterized in that: The motor stator comprises a front frame (1), a rear frame (2), and a stator core (3) wrapped by the front frame (1) and the rear frame (2); eight protrusions are respectively provided in eight slots between main poles of the rear frame (2), namely, a first protrusion (21) to an eighth protrusion (28); some of the eight protrusions are provided with PIN needles (P) for winding and passing the motor lead wire ends; The eighth protrusion (28), the first protrusion (21), the second protrusion (22) and the third protrusion (23) of the eight protrusions are respectively provided with a PIN needle A (281), a PIN needle B (211), a PIN needle C (221) and a PIN needle D (231); A1-A4 are set as the four main poles of phase A, B1-B4 are set as the four main poles of phase B, slots I to slots VIII are set as the slots between the eight main poles, the first end (4) of the winding of phase A is connected to PIN C (221) when connected, and the second end (5) of the winding of phase A is connected to PIN A (281) when connected; The third wire end (6) of the B-phase winding is connected to the PIN pin D (231) when connected, and the fourth wire end (7) of the B-phase winding is connected to the PIN pin B (211) when connected; The first winding end (4) and the second winding end (5) of the A phase are arranged in slot I and slot VII respectively; The third wire end (6) and the fourth wire end (7) of the B-phase winding are arranged in slot II and slot VIII respectively; The winding method comprises: (1) The first wire end (4) of phase A is directly wound around the PIN needle C (221) on the second protrusion (22) for several turns, and then the winding of each main pole of phase A is started. After the winding of the four main poles of phase A is completed, the second wire end (5) distributed in slot VII is directly wound around the PIN needle A (281) on the eighth protrusion (28), completing the winding of phase A of the motor; (2) After the third wire end (6) of phase B is wound several times around the PIN needle D (231) on the third protrusion (23), the winding of each main pole of phase B begins. After the winding of the four main poles of phase B is completed, the fourth wire end (7) distributed in slot VIII is directly wound around the PIN needle B (211) on the first protrusion (21), completing the winding of phase B of the motor.

2. A motor stator winding method according to claim 1, characterized in that: The PIN needle is in a square shape.

3. A motor, characterized in that: A motor stator wound by the winding method according to any one of claims 1-2.

4. A motor stator winding method, characterized in that: The motor stator comprises a front frame (1), a rear frame (2) and a stator core (3) wrapped by the front frame (1) and the rear frame (2), wherein eight protrusions are respectively provided in the eight slots between the main poles of the rear frame (2), namely the first protrusion (21) to the eighth protrusion (28), and is characterized in that some of the eight protrusions are provided with PIN needles (P) for winding and passing the motor lead wire ends; the eighth protrusion (28), the first protrusion (21), the second protrusion (22) and the third protrusion (23) of the eight protrusions are respectively provided with PIN needles A (281), PIN needle B (211), PIN needle C (221) and PIN needle D (231); A1-A4 are set as the four main poles of phase A, B1-B4 are set as the four main poles of phase B, slots I to slots VIII are set as the slots between the eight main poles, the first end (4) of the winding of phase A is connected to PIN C (221) when connected, and the second end (5) of the winding of phase A is connected to PIN A (281) when connected; The third wire end (6) of the B-phase winding is connected to the PIN pin D (231) when connected, and the fourth wire end (7) of the B-phase winding is connected to the PIN pin B (211) when connected; The first wire end (4) and the second wire end (5) of the A-phase winding are arranged in slot II and slot VIII respectively, and the third wire end (6) and the fourth wire end (7) of the B-phase winding are arranged in slot III and slot I respectively; The winding method comprises: (1) The first wire end (4) of phase A is directly wound around the PIN needle C (221) on the second protrusion (22) for several turns, and then the winding of each main pole of phase A is started. After the winding of the four main poles of phase A is completed, the second wire end (5) distributed in slot VIII is directly wound around the PIN needle A (281) on the eighth protrusion (28), completing the winding of phase A of the motor; (2) After the third wire end (6) of phase B is wound several times around the PIN needle D (231) on the third protrusion (23), the winding of each main pole of phase B begins. After the winding of the four main poles of phase B is completed, the fourth wire end (7) distributed in the slot I is directly wound around the PIN needle B (211) on the first protrusion (21), completing the winding of phase B of the motor.

5. A motor stator winding method according to claim 4, characterized in that: The PIN needle is in a square shape.

6. A motor, characterized in that: A motor stator wound by the winding method according to any one of claims 4-5.

Images