A motor stator and motor

Abstract

This utility model relates to the field of motor technology, and more particularly to a motor stator and a motor, including a stator core, and a stator winding for clamping the coil on the stator core. Washers are installed inside both ends of the stator winding, and an elastic sheet for protecting the coil is integrally connected between the two washers. A support assembly for supporting and protecting the corners of the coil is installed on the stator winding, and the washers are horizontally positioned at both ends of the stator winding. This utility model, by installing circumferentially distributed elastic sheets on the inner wall of the stator winding, enables the elastic sheets to isolate the coil from the stator winding, thereby reducing direct contact between the stator winding and the coil and effectively improving the service life of the coil. By installing support plates on both sides of the stator winding, the support plates can support the coil extending beyond the stator winding, and the support plates can always support the coil when it is bent.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a motor stator and a motor. Background Technology

[0002] The stator is the stationary part of the motor. Its main function is to generate a rotating magnetic field, while the rotor's main function is to be cut by magnetic lines of force in the rotating magnetic field, thereby generating (output) current.

[0003] The stator consists of three parts: the stator core, the stator windings, and the frame. A large number of coils are wound around the stator windings. After the coils are wound, they are pressed together to make the coils relatively regular. When the coils pass through the stator windings, they rub against the inner wall of the stator windings. Excessive friction will cause wear. The coils need to be bent during winding. When the operator presses the coils together, the bent parts may break due to excessive pressure, which will affect the service life of the coils. Utility Model Content

[0004] The purpose of this invention is to solve the problem of coils not being protected during installation in the prior art, and to propose a motor stator and motor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An electric motor stator includes a stator core, and a stator winding for clamping the coil is provided on the stator core. Washers are installed inside both ends of the stator winding, and an elastic sheet for protecting the coil is integrally connected between the two washers. A support component for supporting and protecting the corners of the coil is installed on the stator winding.

[0007] Preferably, the washer is horizontally positioned at both ends of the stator winding, the elastic sheet is an arc-shaped structure adapted to the inner wall of the stator winding, the elastic sheet is made of rubber, and there are five elastic sheets.

[0008] Preferably, a protective plate and a fixing plate are fixedly installed on both ends of the washer, a limiting groove for accommodating the fixing plate is provided on the stator winding, and the fixing plate has an annular structure. The protective plate and the washer extend to one side outside the stator winding.

[0009] Preferably, the stator winding has a notch for clamping the washer, the washer is made of rubber, the protective sheet is a ring structure, and the protective sheet is made of soft PVC.

[0010] Preferably, the support assembly includes a vertical plate installed in the stator winding, and a support plate for supporting the coil is integrally connected to the vertical plate, and a clamping structure for clamping the vertical plate is installed in the stator winding.

[0011] Preferably, the support plate and the upright plate extend to both sides outside the stator winding, and the support plate has a semi-arc structure and is made of high molecular weight polyoxymethylene material.

[0012] Preferably, the clamp structure includes a groove formed in the stator winding to limit the position of the upright plate, a plastic sheet that fits into the upright plate is installed in the groove, and a protrusion that moves against the upright plate is integrally connected on the plastic sheet.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. This utility model installs circumferentially distributed elastic sheets on the inner wall of the stator winding, which can block the coil from the stator winding, thereby reducing direct contact between the stator winding and the coil, avoiding excessive wear of the coil during installation, and effectively improving the service life of the coil.

[0015] 2. This utility model installs support plates on both sides of the stator winding, so that the support plates can support the coil extending outside the stator winding. When the coil is bent, the support plates can always support it, avoiding excessive bending of the coil. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a motor stator proposed in this utility model;

[0017] Figure 2 This is a cross-sectional view of a motor stator proposed in this utility model;

[0018] Figure 3 This is an enlarged schematic diagram of the A-structure of a motor stator proposed in this utility model;

[0019] Figure 4 This is a cross-sectional view of the stator winding of a motor stator proposed in this utility model;

[0020] Figure 5 This is an enlarged schematic diagram of the B structure of a motor stator proposed in this utility model.

[0021] In the diagram: 1. Stator core; 2. Stator winding; 3. Washer; 4. Fixing plate; 5. Limiting groove; 6. Protective plate; 7. Elastic plate; 8. Vertical plate; 9. Slot; 10. Support plate; 11. Plastic sheet; 12. Protrusion. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-5 An electric motor stator includes a stator core 1, and the stator core 1 is provided with a stator winding 2 for clamping the coil.

[0024] Washers 3 are installed inside both ends of the stator winding 2, and an elastic sheet 7 for protecting the coil is integrally connected between the two washers 3. By installing circumferentially distributed elastic sheets 7 inside the stator winding 2, the elastic sheets 7 can isolate the stator winding 2 from the coil.

[0025] A support assembly is installed on stator winding 2 to support and protect the corners of the coil.

[0026] The support assembly includes a vertical plate 8 installed within the stator winding 2, and an integrally connected support plate 10 for supporting the coil. The support plate 10 and the vertical plate 8 extend to both sides outside the stator winding 2, and the support plate 10 has a semi-arc structure. The support plate 10 is made of high molecular weight polyoxymethylene (POM). It should be noted that the support plate 10 is preferably made of POM, which has excellent rigidity and wear resistance, so that the support plate 10 always supports the coil, which can avoid excessive compression of the coil and effectively improve the service life of the coil. A clamping structure for clamping the vertical plate 8 is installed inside the stator winding 2.

[0027] The clamp structure includes a groove 9 formed in the stator winding 2 to limit the position of the upright plate 8. A plastic sheet 11 that fits into the upright plate 8 is installed in the groove 9, and a protrusion 12 that moves against the upright plate 8 is integrally connected to the plastic sheet 11. The protrusion 12 can be lifted by the elastic support of the plastic sheet 11, thereby limiting the upright plate 8 between the protrusion 12 and the groove 9, making the installation of the upright plate 8 more convenient.

[0028] Washers 3 are horizontally positioned at both ends of stator winding 2. Elastic sheets 7 are arc-shaped structures adapted to the inner wall of stator winding 2. Elastic sheets 7 are made of rubber, and there are five elastic sheets 7. By making the elastic sheets 7 of rubber, the elasticity of the rubber can block and protect the coil, reduce friction during coil assembly, and thus avoid excessive coil wear.

[0029] Protective plates 6 and fixing plates 4 are fixedly installed on both ends of the washer 3. A limiting groove 5 is opened on the stator winding 2 to accommodate the fixing plate 4. The fixing plate 4 has a ring structure. The protective plates 6 and the washer 3 extend to one side outside the stator winding 2. The position of the elastic piece 7 is locked by the cooperation between the fixing plate 4 and the limiting groove 5. The stability of the elastic piece 7 can be ensured by the continuous compression of the washer 3 by the notch.

[0030] The stator winding 2 has a notch for clamping the washer 3, and the washer 3 is made of rubber. The protective plate 6 has a ring structure and is made of soft PVC. By setting the protective plate 6 on the washer 3 to extend to the stator winding 2, the protective plate 6 can protect the coil extending out of the stator winding 2 and avoid direct contact between the coil and the port of the stator winding 2. The protective plate 6 is preferably made of soft PVC, which has good flexibility and can achieve anti-wear protection for the coil extending to the stator winding 2.

[0031] The functional principle of this utility model can be explained through the following operation methods:

[0032] Install the protective plate 6 so that the protective plate 6 drives the washer 3 to extend into the recess, and the washer 3 drives the fixing plate 4 to extend into the limiting groove 5. Through the cooperation between the fixing plate 4 and the limiting groove 5, the elastic plate 7 is installed in the stator winding 2.

[0033] Press the upright plate 8 equipped with the support plate 10 so that the upright plate 8 extends into the stator winding 2 through the slot 9. After the tail end of the upright plate 8 extends into the stator winding 2, it moves against the plastic sheet 11. The contact of the plastic sheet 11 limits the upright plate 8 between the protrusion 12 and the slot 9.

[0034] When the coil is wound through the stator winding 2, the elastic sheet 7 blocks the connection between the stator winding 2 and the coil.

[0035] When the coil is pressed, the protective plate 6 can block the stator winding 2 from the coil, and the support plate 10 can support and intercept the bent coil.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An electric machine stator comprising a stator core (1) and a stator winding (2) provided on the stator core (1) for clamping a coil, characterized in that Washers (3) are installed inside both ends of the stator winding (2), and an elastic sheet (7) for protecting the coil is integrally connected between the two washers (3). A support component for supporting and protecting the corner of the coil is installed on the stator winding (2).

2. An electric machine stator as claimed in claim 1, characterized in that The washer (3) is horizontally positioned at both ends of the stator winding (2). The elastic sheet (7) is an arc-shaped structure adapted to the inner wall of the stator winding (2). The elastic sheet (7) is made of rubber and there are five elastic sheets (7).

3. An electric machine stator as recited in claim 1, characterized in that Protective plates (6) and fixing plates (4) are fixedly installed on both ends of the washer (3). A limiting groove (5) for storing the fixing plate (4) is opened on the stator winding (2). The fixing plate (4) has a ring structure. The protective plates (6) and washer (3) extend to one side outside the stator winding (2).

4. An electrical machine stator according to claim 3, characterised in that, The stator winding (2) has a notch for clamping the washer (3), and the washer (3) is made of rubber. The protective sheet (6) has a ring structure.

5. A motor stator according to claim 1, characterized in that, The support assembly includes a vertical plate (8) installed in the stator winding (2), and a support plate (10) for supporting the coil is integrally connected on the vertical plate (8). A clamping structure for clamping the vertical plate (8) is installed in the stator winding (2).

6. An electrical machine stator according to claim 5, characterised in that, The support plate (10) and the upright plate (8) extend to both sides outside the stator winding (2), and the support plate (10) has a semi-arc structure.

7. An electrical machine stator according to claim 5, characterised in that, The clamp structure includes a slot (9) opened in the stator winding (2) and limiting the vertical plate (8). A plastic sheet (11) that fits against the vertical plate (8) is installed in the slot (9), and a protrusion (12) that moves against the vertical plate (8) is integrally connected on the plastic sheet (11).

8. An electric machine characterized by A motor that incorporates a motor stator as described in any one of claims 1-7.

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