Paper folding structure of motor stator insulation paper

Abstract

The utility model discloses a paper folding structure for motor stator insulation paper, and aims to overcome the defect that the conventional paper folding mechanism for insulation paper is difficult to shape a curved surface. The insulation paper folding device comprises an upper die and a lower die, the upper die is arranged in a lifting mode relative to the lower die, the lower die is fixedly connected with a folding die, the folding die is configured to contain insulation paper, when the upper die is pressed downwards, the upper die bends the insulation paper on the folding die and presses folds, the upper die is provided with a steam pressing block, the surface of the steam pressing block is high in temperature, and steam can be sprayed out. And the steam pressing block is pressed on the edge folding die to iron and shape the insulation paper through steam and high temperature. The curved surface is shaped through steam and high-temperature ironing, so that the shaped insulation paper is more suitable for the shape of a stator slot, and the insertion is easier.

Description

Technical Field

[0001] The utility model relates to the technical field of motor preparation, and more specifically, to an origami structure of motor stator insulation paper. Background Art

[0002] In order to ensure the insulation between the motor stator core and the winding coil, it is necessary to insert insulating paper into the stator slot. Before inserting the insulating paper, it is necessary to fold the insulating paper into a shape that fits the stator slot for easy insertion.

[0003] In the folding and forming process of the insulating paper, in order to adapt to the shape of the stator slot, especially the specific curved surface shape at the end of the stator slot, it is necessary to achieve shaping through pressing. The existing shaping effect is poor. The present application aims to provide an origami structure of the motor stator insulating paper, which is used to achieve curved surface shaping so that the insulating paper can better adapt to the shape of the stator slot. Summary of the invention

[0004] The utility model overcomes the deficiency that the existing insulating paper folding mechanism is difficult to shape the curved surface, and provides an folding structure of the insulating paper of the motor stator, which can shape the curved surface of the insulating paper, thereby better adapting to the shape of the stator slot.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A paper folding structure for motor stator insulation paper comprises an upper die and a lower die, wherein the upper die can be raised and lowered relative to the lower die, a folding die is fixedly connected to the lower die, the folding die is configured to place insulation paper, when the upper die is pressed downward, the upper die bends the insulation paper on the folding die and presses out creases, the upper die has a steam block, the surface of the steam block is at high temperature and can spray steam, the steam block is pressed on the folding die to iron and shape the insulation paper through steam and high temperature.

[0007] The origami structure achieves indentation and origami by closing the upper mold and the lower mold, and in this process, the insulating paper is shaped according to the arc structure of the stator slot. The present application achieves the shaping of the insulating paper by spraying steam during mold closing and high-temperature ironing. The high-temperature ironing process includes pressing the steam block on the folding mold to produce a curved surface, and the steam sprayed from the steam block soaks the insulating paper and then stops spraying, and then under the action of high temperature, the water vapor evaporates to achieve shaping. By integrating the ironing step into the mold closing, it is combined with the steps of producing indentation and origami, so as not to add extra time, and the production rhythm is the same as the original origami, which is compatible with the existing motor production line.

[0008] Preferably, the folding die has a concave top surface, and the bottom surface of the steam block is adapted to the top surface of the folding die. The insulating paper includes a middle sheet and folding sheets on both sides of the middle sheet, and the curved surface of the middle sheet is realized by the top surface of the folding die and the bottom surface of the steam block.

[0009] Preferably, the upper mold further comprises a fixed pressing block, which is fixedly connected to the upper mold and arranged on both sides of the steam pressing block, and the steam pressing block is elastically connected to the upper mold. The steam pressing block no longer moves downward after being attached to the folding mold, and the fixed pressing block continues to move downward, thereby pushing the insulating paper part outside the folding mold downward and being pressed onto the side wall of the folding mold to achieve folding.

[0010] Preferably, the steam block has a steam hole extending through the height direction, a steam pipe is inserted and sealed at the top of the steam hole, and the steam pipe is externally connected to a steam generator. Through the steam generator and the steam pipe, the steam block generates steam through the steam hole.

[0011] Preferably, the steam briquette is heated by a magnetic induction coil. The high temperature of the steam briquette is achieved by the structure.

[0012] Preferably, the steam pipe is provided with a solenoid valve, which controls the on and off of the steam pipe. The structure realizes intermittent steam ejection of the steam briquette.

[0013] Preferably, the steam holes are provided along the width direction on the surface of the steam pressing block for contacting with the top surface of the folding mold.

[0014] Preferably, the steam holes are arranged at equal intervals.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The curved surface is shaped by steam and high-temperature ironing, so that the shaped insulating paper is more adaptable to the shape of the stator slot and easier to insert;

[0017] (2) Ironing, creasing and folding are performed simultaneously in one mold closing process, which does not take up more production cycles and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the finished insulation paper;

[0019] Figure 2 It is a schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the steam briquetting of the utility model;

[0021] Figure 4 yes Figure 3 Cross-section at AA in the middle;

[0022] Figure 5 yes Figure 3 Cross-section at the middle BB;

[0023] In the figure:

[0024] Upper die 1, lower die 2, folding die 3, steam pressing block 4, middle sheet 5, folding sheet 6, top surface 7, side wall 8, fixed pressing block 9, steam hole 10, steam pipe 11, magnetic induction coil 12, solenoid valve 13. DETAILED DESCRIPTION

[0025] The present disclosure is further described below in conjunction with the accompanying drawings and embodiments.

[0026] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present disclosure, and do not specifically refer to any part or element in the present disclosure and should not be understood as limitations on the present disclosure.

[0029] Example:

[0030] A paper folding structure of motor stator insulation paper, reference Figure 2 As shown, it includes an upper mold 1 and a lower mold 2. The upper mold 1 can be raised and lowered relative to the lower mold 2. A folding mold 3 is fixedly connected to the lower mold 2. The folding mold 3 is configured to place insulating paper. The folding mold 3 has a concave top surface 7. The bottom surface of the steam block 4 is adapted to the top surface 7 of the folding mold 3. Figure 1 The insulating paper includes a middle sheet 5 and folding sheets 6 on both sides of the middle sheet 5 , and the curved surface of the middle sheet 5 is realized by the top surface 7 of the folding mold 3 and the bottom surface of the steam briquette 4 .

[0031] The upper mold 1 also includes a fixed pressing block 9, which is fixedly connected to the upper mold 1 and arranged on both sides of the steam pressing block 4, and the steam pressing block 4 is elastically connected to the upper mold 1. The steam pressing block 4 no longer moves downward after being attached to the folding mold 3, and the fixed pressing block 9 continues to move downward, thereby pushing the insulating paper part outside the folding mold 3 downward and being pressed onto the side wall 8 of the folding mold 3 to achieve folding. The steam pressing block 4 is connected to the upper mold 1 through an elastic member, and the fixed pressing block 9 limits the elastic member from coming out.

[0032] Ginseng Figure 3 , 4 The steam block 4 has a steam hole 10 that is arranged through the height direction, and a steam pipe 11 is inserted and sealed at the top of the steam hole 10, and the steam pipe 11 is externally connected to a steam generator. Through the steam generator and the steam pipe 11, the steam block 4 generates steam through the steam hole 10. The steam pipe 11 is provided with a solenoid valve 13, and the solenoid valve 13 controls the on and off of the steam pipe 11. The structure realizes intermittent steam ejection of the steam block 4. The steam hole 10 is opened on the surface of the steam block 4 for fitting with the top surface 7 of the folding mold 3 along the width direction. Specifically, the steam holes 10 are arranged at equal intervals.

[0033] Ginseng Figure 5 The steam block 4 is heated by the magnetic induction coil 12. The high temperature of the steam block 4 is achieved by the structure. Specifically, the magnetic induction coil 12 is inserted into the hemming die 3 in the form of an insert and is located on both sides of the steam hole 10. The insert includes a cover body with both ends installed in a spiral form.

[0034] When the upper mold 1 is pressed down, the upper mold 1 bends the insulating paper on the folding mold 3 and presses out creases. The upper mold 1 has a steam pressing block 4. The surface of the steam pressing block 4 is at high temperature and can spray steam. The steam pressing block 4 is pressed on the folding mold 3 to iron and shape the insulating paper through steam and high temperature.

[0035] The origami structure is indented and origami is achieved by closing the upper mold 1 and the lower mold 2, and in this process, the insulating paper is shaped according to the arc structure of the stator slot. The present application achieves the shaping of the insulating paper by spraying steam during mold closing and ironing at high temperature. The high-temperature ironing process includes pressing the steam block 4 onto the folding mold 3 to produce a curved surface, and the steam sprayed from the steam block 4 soaks the insulating paper and then stops spraying, and then under the action of high temperature, the water vapor evaporates to achieve shaping. By integrating the ironing step into the mold closing, it is combined with the steps of producing indentation and origami, so as not to add extra time, and the production rhythm is the same as the original origami, which is compatible with the existing motor production line.

[0036] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. An origami structure of motor stator insulation paper, characterized in that: It includes an upper mold and a lower mold. The upper mold can be raised and lowered relative to the lower mold. A folding mold is fixedly connected to the lower mold. The folding mold is configured to place insulating paper. When the upper mold is pressed down, the upper mold bends the insulating paper on the folding mold and presses out creases. The upper mold has a steam pressing block. The surface of the steam pressing block is at high temperature and can spray steam. The steam pressing block is pressed on the folding mold to iron and shape the insulating paper through steam and high temperature.

2. The origami structure of the motor stator insulation paper according to claim 1, characterized in that: The folding die has a concave top surface, and the bottom surface of the steam briquette is adapted to the shape of the top surface of the folding die.

3. The origami structure of the motor stator insulation paper according to claim 1, characterized in that: The upper mold also includes a fixed pressing block, which is fixedly connected to the upper mold and arranged on both sides of the steam pressing block, and the steam pressing block is elastically connected to the upper mold.

4. The origami structure of the motor stator insulation paper according to claim 1, characterized in that: The steam block has a steam hole which is arranged through in the height direction, a steam pipe is inserted and sealed at the top of the steam hole, and the steam pipe is externally connected to a steam generator.

5. The origami structure of the motor stator insulation paper according to claim 1, characterized in that: The steam briquettes are heated by means of magnetic induction coils.

6. The origami structure of the motor stator insulation paper according to claim 4, characterized in that: The steam pipe is provided with a solenoid valve, which controls the on and off of the steam pipe.

7. The origami structure of the motor stator insulation paper according to claim 4, characterized in that: The steam holes are arranged along the width direction on the surface of the steam pressing block for contacting with the top surface of the folding die.

8. The origami structure of the motor stator insulation paper according to claim 7, characterized in that: The steam holes are arranged at equal intervals.

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