Constant-temperature paint dripping method for axial flux motor

By using a constant temperature paint drop method on the axial flux motor, the insulating paint flows on the stator surface, solving the problems of bubble generation and gaps, and improving the quality of the motor.

CN119813679APending Publication Date: 2025-04-11QINGDAO LEADING AUTOMATION EQUIP
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Patent Information

Application Number
CN202510090925.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2025-04-11

AI Technical Summary

Technical Problem

When the prior art covers insulating paint on the stator, bubbles are easily generated in the stator core groove, and there may be gaps between the insulating paper and the flat wire, resulting in the insulating paint being unable to fully fit the various parts of the stator, affecting the motor quality.

Method used

The constant temperature paint drop method of the axial flux motor is adopted to drip the insulating paint onto the stator through the paint drop device, and the stator is rotated about at least two axes that are not parallel to each other through the heating device, so that the insulating paint flows through various parts of the stator surface, thereby avoiding the generation of air bubbles and filling the gaps.

Benefits of technology

The insulating paint flows on the surface of the stator, avoiding the generation of air bubbles and completely bonding to the surfaces of the stator, improving the quality of the motor.

✦ Generated by Eureka AI based on patent content.

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Abstract

According to the technical scheme, the constant-temperature paint dripping method is characterized by comprising the following steps that S01, feeding is conducted, specifically, a stator is fixed to a heating device; s02, preheating is conducted, specifically, the stator is heated by a heating device to the paint dripping temperature; s03, paint dripping: dripping the insulating paint onto the stator through a paint dripping device, and driving the stator to rotate around at least two non-parallel axes by a heating device so as to enable the insulating paint to flow through each part of the surface of the stator; s04, gelling: adjusting the stator to a gelling temperature through a heating device; s05, curing: moving the gelated stator into a curing oven for curing; according to the invention, the insulating paint flows on the surface of the stator in a paint dripping manner, so that bubbles are not easy to generate in a stator iron core groove, and the insulating paint also easily flows into a gap, thereby enabling the insulating paint to be completely attached to all the surfaces of the stator, and guaranteeing the quality of a final motor.
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Description

Technical Field

[0001] The invention relates to the technical field of stator paint dripping, and more specifically, to a constant-temperature paint dripping method for an axial flux motor. Background Art

[0002] Insulation paper is usually used to insulate the flat wire windings of new energy vehicle motors from the stator core slots, and then covered with insulating varnish. After curing, the flat wires are fixed and form a strong overall structure.

[0003] In the prior art, when the stator is covered with insulating paint, the insulating paint is mostly covered on the surface of the stator by dipping. During the operation, the stator needs to be completely immersed in the insulating paint so that the insulating paint covers the stator.

[0004] In the prior art, when the stator is immersed in insulating varnish, bubbles are easily generated in the stator core slots, and gaps may exist between the insulating paper and the flat wire, which causes the insulating varnish to be unable to completely fit the various parts of the stator, thereby affecting the quality of the final motor. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a constant temperature paint dripping method for an axial flux motor, which allows the insulating paint to flow on the surface of the stator, thereby reducing the risk of bubbles in the stator core slots and allowing the insulating paint to flow into the gaps, thereby allowing the insulating paint to thoroughly adhere to the surfaces of the stator and ensuring the quality of the final motor.

[0006] To achieve the above object, the present invention provides the following technical solution: a constant temperature paint dripping method for an axial flux motor, comprising the following steps: S01, loading, fixing the stator on the heating device; S02, preheating, the heating device heats the stator to the paint dripping temperature; S03, dripping paint, dripping insulating paint onto the stator through a paint dripping device, and the heating device drives the stator to rotate around at least two non-parallel axes to make the insulating paint flow through various places on the stator surface; S04, gel, adjust the stator to the gel temperature by the heating device; S05, curing, moving the gelled stator into a curing oven for curing.

[0007] The present invention is further configured as follows: in the step S02 and the step S04, the heating device achieves uniform heating of the stator by means of heat radiation.

[0008] The present invention is further configured as follows: in the step S03, when dripping paint, the temperature of the stator is controlled at 90°C-120°C.

[0009] The present invention is further configured as follows: in step S03, the temperature of the stator is controlled at 120°C-150°C.

[0010] The present invention is further configured as follows: the heating device comprises an energy storage disk, and the stator is fixed on the energy storage disk; And an electric heating wire, wherein the electric heating wire is used to heat the energy storage disk.

[0011] The present invention is further configured as follows: the heating device further comprises a contact temperature sensor, and each of the energy storage disk and the workpiece corresponds to at least one contact temperature sensor; And a non-contact temperature sensor, the energy storage disk and the workpiece each correspond to at least one non-contact temperature sensor.

[0012] The present invention is further configured as follows: in the step S03, the two axes of rotation of the stator are respectively a rotation axis and a tilt axis; The rotation axis overlaps with the axis of the stator, and the tilt axis is perpendicular to the axis of the stator.

[0013] The present invention is further configured as follows: in the step S03, the upward tilt angle of the stator around the tilt axis is set to 3°-10°.

[0014] The present invention is further configured such that the stator needs to be weighed before step S01 and after step S05.

[0015] The present invention is further configured as follows: in step S05, the curing temperature is set to 160°C-180°C.

[0016] In summary, compared with the prior art, the present invention has the following beneficial effects: the present invention allows the insulating paint to flow on the surface of the stator by dripping paint, so that it is not easy to generate bubbles in the stator core slots, and it is easy to flow into the gaps, so that the insulating paint can completely adhere to the surfaces of the stator, thereby ensuring the quality of the final motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of a heating device according to an embodiment.

[0018] In the figure: 1. Energy storage disk; 2. Electric heating wire. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.

[0020] The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0021] Embodiment: A constant temperature paint dripping method for an axial flux motor comprises the following steps: S01, loading, fixing the stator on the heating device; S02, preheating, the heating device heats the stator to the paint dripping temperature; S03, dripping paint, dripping insulating paint onto the stator through a paint dripping device, and the heating device drives the stator to rotate around at least two non-parallel axes to make the insulating paint flow through various places on the stator surface; S04, gel, adjust the stator to the gel temperature by the heating device; S05, curing, moving the gelled stator into a curing oven for curing.

[0022] Specifically, in step S02 and step S04, the heating device achieves uniform heating of the stator by means of heat radiation.

[0023] Specifically, in step S03, when dripping paint, the temperature of the stator is controlled at 90°C-120°C.

[0024] Specifically, in step S03, the temperature of the stator is controlled at 120°C-150°C.

[0025] Specifically, the heating device includes an energy storage disk 1 and an electric heating wire 2 , and the stator is fixed on the energy storage disk 1 ; the electric heating wire 2 is used to heat the energy storage disk 1 .

[0026] Through the arrangement of the energy storage disk 1, the energy storage disk 1 can be heated by the electric heating wire 2 first, and then the radiation heating of the stator is realized by the heat radiation of the energy storage disk 1, so that all parts of the stator can be heated evenly, so that the insulating paint can have good fluidity in all parts of the stator, and then the insulating paint can be evenly covered on all parts of the stator surface.

[0027] Specifically, the heating device also includes a contact temperature sensor and a non-contact temperature sensor. The energy storage disk 1 and the workpiece each correspond to at least one contact temperature sensor; the energy storage disk 1 and the workpiece each correspond to at least one non-contact temperature sensor, and the workpiece is the stator.

[0028] By detecting the temperature of the energy storage disk 1 and the stator, the heating power of the electric heating wire 2 can be adjusted according to the detection result, thereby accurately adjusting the temperature of the energy storage disk 1 and the stator.

[0029] Specifically, in step S03, the two axes of rotation of the stator are respectively a rotation axis and a tilt axis; the rotation axis overlaps with the axis of the stator, and the tilt axis is perpendicular to the axis of the stator.

[0030] Specifically, in step S03, the upward tilt angle of the stator around the tilt axis is set to 3°-10°.

[0031] Specifically, the stator needs to be weighed before step S01 and after step S05.

[0032] Specifically, in step S05, the curing temperature is set to 160°C-180°C.

[0033] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A constant temperature paint dripping method for an axial flux motor, characterized in that: The following steps are involved: S01, loading, fixing the stator on the heating device; S02, preheating, the heating device heats the stator to the paint dripping temperature; S03, dripping paint, dripping insulating paint onto the stator through a paint dripping device, and the heating device drives the stator to rotate around at least two non-parallel axes to make the insulating paint flow through various places on the stator surface; S04, gel, adjust the stator to the gel temperature by the heating device; S05, curing, moving the gelled stator into a curing oven for curing.

2. A constant temperature paint dripping method for an axial flux motor according to claim 1, characterized in that: In step S02 and step S04, the heating device achieves uniform heating of the stator by means of heat radiation.

3. A constant temperature paint dripping method for an axial flux motor according to claim 2, characterized in that: In the step S03, when dripping paint, the temperature of the stator is controlled at 90°C-120°C.

4. A constant temperature paint dripping method for an axial flux motor according to claim 3, characterized in that: In step S03, the temperature of the stator is controlled at 120°C-150°C.

5. A constant temperature paint dripping method for an axial flux motor according to claim 4, characterized in that: The heating device comprises an energy storage disk (1), and the stator is fixed on the energy storage disk (1); and an electric heating wire (2), wherein the electric heating wire (2) is used to heat the energy storage disk (1).

6. A constant temperature paint dripping method for an axial flux motor according to claim 5, characterized in that: The heating device further comprises a contact temperature sensor, and each of the energy storage disk (1) and the workpiece corresponds to at least one contact temperature sensor; And a non-contact temperature sensor, the energy storage disk (1) and the workpiece each correspond to at least one non-contact temperature sensor.

7. A constant temperature paint dripping method for an axial flux motor according to claim 6, characterized in that: In the step S03, the two axes of rotation of the stator are respectively a rotation axis and a tilt axis; The rotation axis overlaps with the axis of the stator, and the tilt axis is perpendicular to the axis of the stator.

8. A constant temperature paint dripping method for an axial flux motor according to claim 7, characterized in that: In the step S03, the upward tilt angle of the stator around the tilt axis is set to 3°-10°.

9. A constant temperature paint dripping method for an axial flux motor according to claim 8, characterized in that: The stator needs to be weighed before step S01 and after step S05.

10. A constant temperature paint dripping method for an axial flux motor according to claim 9, characterized in that: In the step S05, the curing temperature is set to 160°C-180°C.