A stator assembly free of insulating varnish impregnation and its gluing process

Abstract

The present invention discloses a stator assembly that does not require insulating varnish impregnation and a gluing process thereof, wherein the stator assembly includes a stator core, an axial hole for installing a fixed shaft is provided at the center of the stator core, a plurality of first winding slots are evenly distributed on the stator core in a circumferential direction, a first winding frame is formed between adjacent first winding slots, a coil winding is wound on the first winding frame, and the stator core is provided with a sealing portion that can stabilize the coil winding relative to the stator core; the stator assembly that does not require insulating varnish impregnation of the present invention can prevent the coil winding from loosening and breaking, avoid flying wires of the coil winding, and avoid damage to the corner coil winding by providing the sealing portion on the stator core that can stabilize the coil winding relative to the stator core; at the same time, the stator assembly that does not require insulating varnish impregnation of the present invention and the gluing process thereof also have the characteristics of simple gluing process, high production efficiency and low manufacturing cost.

Description

Technical field

[0001] The invention relates to the technical field of motors, in particular to a stator component free of insulating varnish impregnation and a gluing process thereof. [Background Technology]

[0002] The low-power, low-voltage 120-240V motors currently manufactured on the market are composed of a stator assembly and a rotor assembly. The enameled wire on the stator assembly is F-class enameled wire, and does not require insulating paint to improve insulation performance.

[0003] Currently, stator components are coated with insulating varnish through a varnish dipping process to prevent the insulating slot wedges and slot paper from falling off and the coil windings from becoming loose. However, the varnish dipping process currently on the market requires oven drying, which results in high working temperatures in the workshop when the oven is operating, and causes the insulating varnish and thinner to volatilize, polluting the air and endangering the health of workers. Furthermore, the varnish dipping process for stator components also has the disadvantages of complex process, low production efficiency, and high manufacturing cost.

[0004] There is also a problem with the varnish dipping process for stator components. After the coil windings in the stator components are immersed in insulating varnish and shaped, the coil windings become relatively hard and are prone to breakage during transportation and use, causing changes in the motor resistance.

[0005] Therefore, the present invention is studied and proposed in view of the above problems. [Summary of the invention]

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a stator assembly that does not require insulating paint impregnation, which can improve the problems existing in the prior art and prevent the coil winding from loosening and breaking, as well as avoid the flying wires of the coil winding and avoid the damage of the corner coil winding. At the same time, the present invention also has the characteristics of high production efficiency and low manufacturing cost.

[0007] The present invention is achieved through the following technical solutions:

[0008] A stator assembly that does not require insulating varnish impregnation includes a stator core 1. An axial hole 11 for mounting a fixed shaft is provided at the center of the stator core 1. A plurality of first winding slots 2 are evenly distributed along the circumference of the stator core 1. A first winding frame 3 is formed between adjacent first winding slots 2. A coil winding 100 is wound on the first winding frame 3. The stator core 1 is provided with a sealing portion 200 that can stabilize the coil winding 100 relative to the stator core 1.

[0009] The stator assembly free of insulating varnish impregnation as described above is characterized in that the sealing portion 200 is in a continuous ring shape and surrounds the outside of the coil winding 100 .

[0010] The stator assembly free of insulating paint impregnation as described above is characterized in that the sealing portion 200 is provided in a continuous ring shape on the end face of the stator core 1 , and the sealing portion 200 surrounds the end face of the stator core 1 outside the coil winding 100 .

[0011] As described above, a stator assembly that does not require insulating paint impregnation is characterized in that a plurality of gap slots 4 are provided on the stator core 1, the gap slots 4 are connected to the first winding slots 2, second winding slots 5 are formed between adjacent gap slots 4, and second winding frames 6 are formed between adjacent second winding slots 5, and a coil winding 100 is wound on the second winding frame 6.

[0012] As described above, a stator assembly that does not require insulating paint impregnation is characterized in that slot insulation paper 7 is provided in the first winding slot 2 and the second winding slot 5, and the slot insulation paper 7 encloses an insulating area 71 with one end open. Slot wedge insulation paper 72 is provided at the opening of the slot insulation paper 7, and the two side walls of the slot wedge insulation paper 72 are in contact with the two side walls of the slot insulation paper 7 to enclose the coil winding 100 in the insulating area 71.

[0013] The stator assembly free of insulating varnish impregnation as described above is characterized in that the second winding frame 6 is located between adjacent first winding frames 3 .

[0014] The stator assembly free of insulating varnish impregnation as described above is characterized in that the stator core 1 is coated with light gold solution.

[0015] A gluing process for a stator assembly comprises the following steps:

[0016] ① Clamp and fix the stator core 1 wound with the coil winding 100, and heat the rubber material to a molten state;

[0017] ② Pour molten glue onto the stator core 1 wound with the coil winding 100 and outside the coil winding 100 , and solidify to form a sealing portion 200 .

[0018] The above-mentioned process for gluing stator components is characterized in that the glue material in step ① is granular Loctite PA646.

[0019] The above-mentioned gluing process for stator components is characterized in that the sealing portion 200 in step ② is arranged in a circular ring shape.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. The present invention provides a stator assembly that does not require insulating paint impregnation, including a stator core. An axial hole for installing a fixed shaft is provided at the center of the stator core. A plurality of first winding slots are evenly distributed on the stator core in a circumferential direction. A first winding frame is formed between adjacent first winding slots. A coil winding is wound on the first winding frame. The stator core is provided with a sealing portion that can stabilize the coil winding relative to the stator core. By providing the stator core with a sealing portion that can stabilize the coil winding relative to the stator core, the present invention can prevent the coil winding from loosening and breaking, avoid flying wires of the coil winding, and avoid damage to the corner coil winding. At the same time, the present invention also has the characteristics of high production efficiency and low manufacturing cost.

[0022] 2. In order to improve the insulation performance and ensure safe use, slot insulation paper is provided in the first winding slot and the second winding slot, and the slot insulation paper encloses an insulation area with one end open. Slot wedge insulation paper is provided at the opening of the slot insulation paper, and the two side walls of the slot wedge insulation paper are fitted with the two side walls of the slot insulation paper to enclose the coil winding in the insulation area.

[0023] 3. In order to prevent the stator core from rusting and extend the service life, the stator core is coated with light gold water.

[0024] 4. The present invention provides a gluing process for a stator assembly, comprising the following steps:

[0025] ① Clamp and fix the stator core with the coil winding, and heat the glue to a molten state; ② Pour molten glue onto the stator core with the coil winding and on the outside of the coil winding, and solidify to form a sealing portion. During the gluing work, the present invention can use manual or gluing device to perform the gluing work. At the same time, the sealing portion formed by the gluing process can make the coil winding stable relative to the stator core, prevent the coil winding from loosening and breaking, and avoid flying wires of the coil winding and damage to the corners of the coil winding. At the same time, the gluing process of the present invention has the characteristics of simple gluing process, low manufacturing cost and high production efficiency.

Brief Description of the Drawings

[0026] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0027] Figure 1 It is one of the three-dimensional diagrams of the present invention.

[0028] Figure 2 for Figure 1 A is an enlarged schematic diagram.

[0029] Figure 3 This is the second stereogram of the present invention.

[0030] Figure 4 It is a cross-sectional view of the present invention.

[0031] Figure 5 for Figure 4 A is an enlarged schematic diagram. [Specific implementation method]

[0032] The following is combined with Figure 1-5 The embodiments of the present invention will be described in detail.

[0033] like Figure 1-5 As shown, the present invention provides a stator assembly that does not require insulating varnish impregnation, including a stator core 1. The stator core 1 has an axial hole 11 at its center for mounting a fixed shaft. The stator core 1 has a plurality of first winding slots 2 evenly distributed along the circumferential direction. A first winding frame 3 is formed between adjacent first winding slots 2. A coil winding 100 is wound on the first winding frame 3. The stator core 1 is provided with a sealing portion 200 that can stabilize the coil winding 100 relative to the stator core 1. By providing the stator core with a sealing portion that can stabilize the coil winding relative to the stator core, the present invention can prevent the coil winding from loosening and breaking, avoid flying wires in the coil winding, and avoid damage to the corner coil windings. At the same time, the present invention also has the characteristics of high production efficiency and low manufacturing cost.

[0034] In order to ensure that the sealing portion 200 can stabilize the coil winding 100 relative to the stator core 1 and prevent the coil winding 100 from becoming loose, the sealing portion 200 is in a continuous ring shape and surrounds the outside of the coil winding 100 .

[0035] In order to ensure that the sealing portion 200 can stabilize the coil winding 100 relative to the stator core 1 and prevent the coil winding 100 from loosening, the sealing portion 200 is arranged in a continuous ring shape on the end face of the stator core 1, and the sealing portion 200 surrounds the end face of the stator core 1 outside the coil winding 100.

[0036] To further strengthen the stability of the coil windings relative to the stator core and prevent them from loosening, the sealant 200 is formed by pouring Loctite PA646 glue onto the stator core 1 and allowing it to solidify. When the motor is operating, it generates a certain amount of heat, which is partially absorbed by the sealant. This heat causes the sealant to soften physically, allowing it to adhere more firmly to the stator core, securing the coil windings and effectively preventing them from falling off. This also differs from using thermosetting glue, which is prone to aging and shedding during frequent and repeated heating.

[0037] In order to improve the performance of the motor, a plurality of gap slots 4 are provided on the stator core 1. The gap slots 4 are connected to the first winding slots 2. Second winding slots 5 are formed between adjacent gap slots 4. Second winding frames 6 are formed between adjacent second winding slots 5. The coil winding 100 is wound on the second winding frame 6.

[0038] In order to improve the insulation performance and ensure safe use, slot insulation paper 7 is provided in the first winding slot 2 and the second winding slot 5. The slot insulation paper 7 encloses an insulation area 71 with one end open. A slot wedge insulation paper 72 is provided at the opening of the slot insulation paper 7. The two side walls of the slot wedge insulation paper 72 are in contact with the two side walls of the slot insulation paper 7 to enclose the coil winding 100 in the insulation area 71.

[0039] In order to improve motor performance, the second winding frame 6 is located between adjacent first winding frames 3 .

[0040] In order to prevent the stator core from rusting and extend the service life, the stator core 1 is coated with light gold solution.

[0041] The present invention provides a gluing process for a stator assembly, comprising the following steps:

[0042] ① Clamp and fix the stator core 1 wound with the coil winding 100, and heat the rubber material to a molten state;

[0043] ② Pour molten glue onto the stator core 1 wound with the coil winding 100 and on the outside of the coil winding 100, and solidify to form a sealing portion 200. The present invention can use manual or gluing device to perform the gluing work. The sealing portion formed by the gluing process of the present invention can make the coil winding stable relative to the stator core, prevent the coil winding from loosening and breaking, and avoid flying wires of the coil winding and damage to the corner coil winding. At the same time, the gluing process of the present invention has the characteristics of simple gluing process, low manufacturing cost and high production efficiency.

[0044] In order to further strengthen the stability of the coil winding relative to the stator core and prevent the coil winding from loosening, the rubber material described in step ① is granular Loctite PA646.

[0045] Furthermore, in step ②, the sealing portion 200 is arranged in a circular ring shape.

Claims

1. A stator assembly free of insulating varnish impregnation, characterized in that The invention comprises a stator core (1), wherein a shaft hole (11) for mounting a fixed shaft is provided at the center of the stator core (1), a plurality of first winding slots (2) are evenly distributed on the stator core (1) along the circumferential direction, a first winding frame (3) is formed between adjacent first winding slots (2), a coil winding (100) is wound on the first winding frame (3), and a sealing portion (200) is provided on the stator core (1) to ensure that the coil winding (100) is stable relative to the stator core (1); The sealing portion (200) is provided on the end face of the stator core (1) in a continuous ring shape, and the sealing portion (200) surrounds the end face of the stator core (1) radially outside the coil winding (100).

2. The stator assembly free of insulating varnish impregnation according to claim 1, characterized in that The sealing portion (200) is in a continuous ring shape and surrounds the outside of the coil winding (100).

3. A stator assembly free of insulating varnish impregnation according to claim 1 or 2, characterized in that The stator core (1) is provided with a plurality of gap slots (4), the gap slots (4) being connected to the first winding slots (2), second winding slots (5) being formed between adjacent gap slots (4), and second winding frames (6) being formed between adjacent second winding slots (5), with a coil winding (100) being wound on the second winding frame (6).

4. The stator assembly free of insulating varnish impregnation according to claim 3, characterized in that Slot insulation paper (7) is provided in the first winding slot (2) and the second winding slot (5), and the slot insulation paper (7) encloses an insulation area (71) with an opening at one end. Slot wedge insulation paper (72) is provided at the opening of the slot insulation paper (7), and two side walls of the slot wedge insulation paper (72) are in contact with two side walls of the slot insulation paper (7) to enclose the coil winding (100) in the insulation area (71).

5. The stator assembly free of insulating varnish impregnation according to claim 3, characterized in that The second winding frame (6) is located between adjacent first winding frames (3).

6. The stator assembly free of insulating varnish impregnation according to claim 1, characterized in that The stator core (1) is coated with light gold water.

7. A glue application process for stator components, characterized in that The following steps are involved: ① Clamp and fix the stator core (1) with the coil winding (100) wound thereon, and heat the rubber material until it is molten; ② Pour molten glue onto the stator core (1) wound with the coil winding (100) and outside the coil winding (100), and solidify to form a sealing portion (200).

8. A process for gluing stator components according to claim 7, characterized in that The rubber material in step ① is granular Loctite PA646.

9. A process for gluing a stator assembly according to claim 7 or 8, characterized in that In step ②, the sealing portion (200) is arranged in a circular ring shape.

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