Motor stator and water-cooled motor

Abstract

The utility model discloses a motor stator, which comprises a base, a stator structure and colloid, the base comprises a cylindrical inner wall and an inner cavity enclosed by the inner wall, and the stator structure comprises a first tooth pressure plate, a second tooth pressure plate and a stator core limited between the first tooth pressure plate and the second tooth pressure plate. The first tooth pressing plate is located in the inner cavity and is fixed to the inner wall in the radial direction, the second tooth pressing plate is located in the inner cavity and is fixed to the inner wall in the radial direction, the stator iron core is contained in the inner cavity and extends in the axial direction, and the colloid is located between the inner wall and the stator iron core and isolates the inner wall and the stator iron core. The stator core is not in direct contact with the base, so that the thermal load can be reduced, heat dissipation can be better carried out, and the efficiency can be improved. The utility model also discloses a water-cooled motor with the motor stator.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor stator and a water-cooled motor. Background Art

[0002] The stator is the stationary part of a motor, consisting of a base and a stator structure fixed within the base. The stator's primary function is to generate a rotating magnetic field that matches the rotor. The rotor's primary function is to be cut by magnetic lines of force in the rotating magnetic field, generating current. Existing stator structures are typically bolted to the base, allowing the stator core to directly contact the base. However, direct contact between the stator core and the base generates significant eddy current losses, which reduces motor efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a motor stator and a water-cooled motor.

[0004] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions:

[0005] As a further improved technical solution of the present invention, a motor stator includes a machine base, a stator structure and a colloid, the machine base includes a cylindrical inner wall and an inner cavity formed by the inner wall, the stator structure includes a first tooth pressure plate, a second tooth pressure plate and a stator core limited between the first tooth pressure plate and the second tooth pressure plate, the first tooth pressure plate is located in the inner cavity and radially fixed to the inner wall, the second tooth pressure plate is located in the inner cavity and radially fixed to the inner wall, the stator core is accommodated in the inner cavity and extends axially, the colloid is located between the inner wall and the stator core and isolates the inner wall and the stator core.

[0006] As a further improved technical solution of the present invention, the colloid is in a circular tube shape, and the stator core is located between the first tooth pressure plate, the second tooth pressure plate and the colloid.

[0007] As a further improved technical solution of the present invention, the colloid is a potting colloid.

[0008] As a further improved technical solution of the present invention, the exterior of the stator core is filled with glue to form the colloid.

[0009] As a further improved technical solution of the present invention, the thickness of the colloid ranges from 5mm to 15mm.

[0010] As a further improved technical solution of the present invention, the inner wall is provided with a limiting convex strip extending along the circumferential direction, and the first tooth pressure plate is limited to the limiting convex strip.

[0011] As a further improved technical solution of the present invention, the height of the limiting convex strip is smaller than the thickness of the colloid.

[0012] As a further improved technical solution of the present invention, the outer diameter of the first tooth pressure plate is equal to the outer diameter of the colloid, and the inner diameter of the first tooth pressure plate is smaller than the inner diameter of the stator core.

[0013] As a further improved technical solution of the present invention, the stator structure further includes a first stator pressure ring and a second stator pressure ring, the first stator pressure ring is assembled to the first tooth pressure plate, and the second stator pressure ring is assembled to the second tooth pressure plate.

[0014] The utility model also discloses a water-cooled motor, which includes the motor stator as described above.

[0015] The beneficial effects of the present invention are as follows: the stator core does not directly contact the machine base, thereby reducing the heat load, facilitating better heat dissipation, and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the stator of the motor of the utility model;

[0017] Figure 2 yes Figure 1 Schematic diagram from another angle;

[0018] Figure 3 yes Figure 1 Schematic diagram from another angle;

[0019] Figure 4 yes Figure 3 Schematic diagram of the cross section along line AA;

[0020] Figure 5 yes Figure 4 Enlarged schematic diagram of circle B. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to the various embodiments shown in the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, it should be noted that these embodiments are not intended to limit the present invention, and any equivalent functional, methodological, or structural modifications or substitutions made by persons of ordinary skill in the art based on these embodiments fall within the scope of protection of the present invention.

[0022] Please refer to Figures 1 to 5The utility model discloses a motor stator 100, which includes a base 1, a stator structure 2 and a colloid 3. The base 1 includes a cylindrical inner wall 11 and an inner cavity 12 formed by the inner wall 11. The stator structure 2 includes a first tooth pressure plate 21, a second tooth pressure plate 22 and a stator core 23 limited between the first tooth pressure plate 21 and the second tooth pressure plate 22. The first tooth pressure plate 21 is located in the inner cavity 12 and radially fixed to the inner wall 11, the second tooth pressure plate 22 is located in the inner cavity 12 and radially fixed to the inner wall 11, and the stator core 23 is accommodated in the inner cavity 12 and extends axially. The colloid 3 is located between the inner wall 11 and the stator core 23 and isolates the inner wall 11 and the stator core 23. The stator core does not directly contact the base 1, thereby reducing the heat load, facilitating better heat dissipation, and improving efficiency.

[0023] Furthermore, the colloid 3 is tubular, and the stator core 23 is located between the first tooth pressure plate 21, the second tooth pressure plate 22, and the colloid 3. The colloid 3 is a potted colloid. The stator core 23 is potted with glue to form the colloid 3. Preferably, the thickness of the colloid 3 ranges from 5 mm to 15 mm. The outer diameter of the first tooth pressure plate 21 is equal to the outer diameter of the colloid 3, and the inner diameter of the first tooth pressure plate 21 is smaller than the inner diameter of the stator core 23.

[0024] The inner wall 11 is provided with a limiting ridge 111 extending along the circumferential direction, and the first tooth pressure plate 21 is limited by the limiting ridge 111. The height of the limiting ridge 111 is less than the thickness of the colloid 3.

[0025] The stator structure 2 further includes a first stator pressure ring (not shown) and a second stator pressure ring (not shown). The first stator pressure ring is assembled to the first tooth pressure plate 21 , and the second stator pressure ring is assembled to the second tooth pressure plate 22 .

[0026] The first stator pressing ring and the second stator pressing ring help to stably retain the stator core 23 in the inner cavity 12 .

[0027] The outer diameter of the stator core 23 of the stator structure 2 of the present invention is smaller than the outer diameter of the ordinary stator core, so that the outer diameter of the stator core 23 becomes smaller, the inner diameter of the stator core 23 remains unchanged, and the sizes of the first tooth pressure plate 21, the second tooth pressure plate 22, the first stator pressure ring 24 and the second stator pressure ring 25 remain unchanged. Then, potting is performed on the outside of the stator core 23 until the height reaches the size of the original stator core outer diameter.

[0028] The outside of the stator core 23 is filled with glue to form the colloid 3. By reducing the outer diameter of the stator core 23, the reduced space is filled with glue to form the colloid 3, thereby reducing eddy current loss and improving efficiency. After the colloid 3 is added, the colloid 3 isolates the machine base 1 and the stator core 23. The stator core 23 no longer directly contacts the machine base 1, which can reduce the heat load and facilitate better heat dissipation.

[0029] The present invention also discloses a water-cooled motor, comprising the motor stator 100 described above. A colloid 3 is disposed between the stator core 23 of the motor stator 100 and the motor base 1. The colloid 3 isolates the motor base 1 from the stator core 23. The stator core 23 of the stator structure 2 does not directly contact the motor base 1, thereby reducing eddy current losses, improving efficiency, lowering heat load, and achieving better heat dissipation.

[0030] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0031] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A motor stator, characterized in that: It includes a machine base, a stator structure and a colloid. The machine base includes a cylindrical inner wall and an inner cavity formed by the inner wall. The stator structure includes a first tooth pressure plate, a second tooth pressure plate and a stator core limited between the first tooth pressure plate and the second tooth pressure plate. The first tooth pressure plate is located in the inner cavity and radially fixed to the inner wall. The second tooth pressure plate is located in the inner cavity and radially fixed to the inner wall. The stator core is accommodated in the inner cavity and extends axially. The colloid is located between the inner wall and the stator core and isolates the inner wall and the stator core.

2. The motor stator according to claim 1, characterized in that: The colloid is in a circular tube shape, and the stator core is located between the first tooth pressure plate, the second tooth pressure plate and the colloid.

3. The motor stator according to claim 1, characterized in that: The colloid is a potting colloid.

4. The motor stator according to claim 1, characterized in that: The exterior of the stator core is filled with glue to form the colloid.

5. The motor stator according to claim 1, characterized in that: The thickness of the colloid is in the range of 5 mm to 15 mm.

6. The motor stator according to claim 1, characterized in that: The inner wall is provided with a limiting convex strip extending along the circumferential direction, and the first tooth pressure plate is limited to the limiting convex strip.

7. The motor stator according to claim 6, characterized in that: The height of the limiting convex strip is smaller than the thickness of the colloid.

8. The motor stator according to claim 1, characterized in that: The outer diameter of the first tooth pressure plate is equal to the outer diameter of the colloid, and the inner diameter of the first tooth pressure plate is smaller than the inner diameter of the stator core.

9. The motor stator according to claim 1, characterized in that: The stator structure further includes a first stator pressure ring and a second stator pressure ring. The first stator pressure ring is assembled on the first tooth pressure plate, and the second stator pressure ring is assembled on the second tooth pressure plate.

10. A water-cooled motor, characterized in that: It comprises the motor stator according to any one of claims 1 to 9.

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