Single-phase series excited motor stator block frameless structure

Abstract

The utility model discloses a single-phase series excited motor stator block frameless structure, which comprises a stator iron core, the stator core is provided with a first block and a second block; two splicing areas are arranged between the first sub-block and the second sub-block; the first sub-block is provided with a first space; the second sub-block is provided with a second space; the first space is connected with the insulating slot paper and the winding enameled wire, and the second space is connected with the insulating slot paper and the winding enameled wire; due to the fact that the first sub-block and the second sub-block are arranged in a split mode, the first space and the second space are in an open state, frameless enameled wire connection and enameled wire winding are achieved, operation is relatively convenient, the winding efficiency is relatively high, after the first sub-block and the second sub-block are spliced, the first space and the second space are combined into a complete inner space, and the winding efficiency is relatively high. The structural strength and the use performance are ensured; therefore, the technical problems that the stator iron core is generally an integral body and is provided with a framework, so that the operation is inconvenient and the winding efficiency is low when the enameled wire is wound are solved.

Description

Technical Field

[0001] The utility model relates to the field of intelligent equipment, specifically to a single-phase series-excited motor stator split frameless structure. Background Art

[0002] The stator assembly on a single-phase series-excited motor generally includes: a stator core, a frame, insulating slot paper, enameled wire, and a connecting wire. After the frame is assembled with the stator core, the insulating slot paper is stuffed in, the enameled wire is wound on the frame, the enameled wire is welded to the terminal in the frame, and the connecting wire is welded to the terminal in the frame, thus forming the stator assembly;

[0003] For such a structure, the stator core is usually a whole and has a frame, which is inconvenient to operate and has a low winding efficiency when winding the enameled wire. Summary of the Utility Model

[0004] Aiming at the above deficiencies in the related art, the purpose is to provide a single-phase series-excited motor stator split frameless structure to solve the technical problems that the stator core in the related art is usually a whole and has a frame, which is inconvenient to operate and has a low winding efficiency when winding the enameled wire.

[0005] The technical solution to achieve the purpose is: a single-phase series-excited motor stator split frameless structure, including: a stator core;

[0006] The stator core has a first block and a second block;

[0007] There are two splicing areas between the first block and the second block;

[0008] The first block has a first space, and an insulating slot paper and an enameled wire are connected at the first space;

[0009] The second block has a second space, and another insulating slot paper and another enameled wire are connected at the second space;

[0010] After the first block and the second block are spliced through the splicing area, the first space and the second space are combined into a complete inner space.

[0011] Further: the structures of the first block and the second block are the same;

[0012] The structures of the first space and the second space are the same.

[0013] Further: the first block or the second block includes: a first part; a second part, which is arranged opposite to and spaced apart from the first part, and has a through hole on the second part; a third part, connecting one end of the first part and one end of the second part; and a fourth part, connected at the middle position of the third part, arranged between the first part and the second part, and forming two concave spaces between the first part, the second part and the third part;

[0014] The insulating slot paper and the enameled wire are connected at the concave space.

[0015] Further: the outer shape of the first part is an arc structure;

[0016] The outer shape of the second part is an arc structure;

[0017] The outer shape of the third part is a rectangular structure;

[0018] The outer shape of the fourth part is a crescent structure;

[0019] The splicing area is provided at the other ends of the first part and the second part;

[0020] The arc center points of the first part and the second part are the same point;

[0021] The arc length dimension of the first part is less than the arc length dimension of the second part;

[0022] The third part is parallel to the center line A of the through hole;

[0023] There are two arc convex corners on the fourth part, and the arc convex corners are transitioned by fillets between the first part and the third part, and between the arc convex corners and the second part and the third part;

[0024] There is an included angle B between the arc convex corners;

[0025] One of the concave spaces is formed between the arc convex corner, the fillet and the first part;

[0026] The other concave space is formed between the arc convex corner, the fillet and the second part.

[0027] Further: the included angle B is 60°;

[0028] Further: the splicing area includes: a first surface, arranged on the first part;

[0029] a second surface, arranged on the second part;

[0030] A protruding part is arranged on the first surface;

[0031] And a concave part is arranged on the second surface for splicing with the protruding part. After splicing, the second surface contacts the first surface.

[0032] Further: A connecting line C between the first surface and the second surface forms an included angle D with the central connecting line A on the through hole.

[0033] Further: The included angle D is 7° - 20°.

[0034] Further: The protruding part is a dovetail rib; the concave part is a dovetail groove.

[0035] Further: It further includes: An arc-shaped inner protrusion connected to the second part, arranged in the first space or the second space, close to the through hole and the splicing area;

[0036] The outer shape of the arc-shaped inner protrusion is an arc structure, starting from near the splicing area and extending in an arc state away from the splicing area. When it reaches the central connecting line A, it turns in the direction of the second part and extends in an arc state until it is seamlessly connected to the second part.

[0037] Adopting the above technical solution, it has the following beneficial effects: The stator of the single-phase series-wound motor has a split and frameless structure. Compared with the related technology, the stator core has a first split and a second split; there are two splicing areas between the first split and the second split; the first split has a first space; the second split has a second space;

[0038] Before the first split and the second split are spliced, an insulating slot paper and an enameled wire are connected at the first space, and an insulating slot paper and an enameled wire are connected at the second space;

[0039] Since the first split and the second split are separately arranged and the first space and the second space are in an open state, frameless connection of the enameled wire is realized. When winding the enameled wire, the operation is relatively convenient, the winding efficiency is relatively high, and after the first split and the second split are spliced through the splicing area, the first space and the second space are combined into a complete inner space, forming an integral stator core, ensuring the structural strength and service performance;

[0040] Thus, it overcomes the technical problem that the stator core is usually an integral one with a frame, and the operation is inconvenient and the winding efficiency is low when winding the enameled wire, and achieves the technical effect that the stator core is split, frameless, the operation is relatively convenient when winding the enameled wire, and the winding efficiency is relatively high. It has practicality, and the technical solution can be applied to the field of servo motor drive and control integration systems. Description of the Drawings

[0041] Figure 1 It is a schematic diagram of the general assembly structure before splicing;

[0042] Figure 2 It is one of the top views after the first block and the second block are spliced;

[0043] Figure 3 It is the second top view after the first block and the second block are spliced;

[0044] Figure 4 It is the splicing area, a partial enlarged schematic diagram of the arc-shaped inner protrusion and the insulating slot paper;

[0045] Figure 5 It is a schematic diagram of the structure with a skeleton in the prior art;

[0046] In the figure: 10. Stator core, 10-1. Through hole, 11. First block, 11-1. First space, 11-2. First part, 11-3. Second part, 11-4. Third part, 11-5. Fourth part, 11-51. Arc-shaped protruding corner, 11-52. Rounded corner, 11-6. Concave space, 11-61. Opening, 11-7. Arc-shaped inner protrusion, 12. Second block, 12-1. Second space, 13. Splicing area, 13-1. First surface, 13-2. Second surface, 13-3. Protruding part, 13-4. Concave part, 14. Inner space, 100. Insulating slot paper, 200. Enameled wire, 300. Insulating tape, 400. Connecting wire, 500. Skeleton. Specific embodiments

[0047] In order to make the content easier to be clearly understood, the following will be further described in detail according to specific embodiments in conjunction with the accompanying drawings;

[0048] The single-phase series-excited motor stator block without a skeleton structure solves the technical problem in the related art that the stator core is usually an integral body and has a skeleton, which is inconvenient to operate and has a relatively low winding efficiency when winding the enameled wire. It can be manufactured and used, achieving the positive effect that the stator core is set in blocks, without a skeleton, and is relatively convenient to operate and has a relatively high winding efficiency when winding the enameled wire. The general idea is as follows:

[0049] One embodiment:

[0050] As Figure 1 shown; the single-phase series-excited motor stator block without a skeleton structure includes: a stator core 10;

[0051] The stator core 10 has a first block 11 and a second block 12;

[0052] There are two splicing areas 13 between the first block 11 and the second block 12;

[0053] The first block 11 has a first space 11-1, and an insulating slot paper 100 and an enameled wire 200 are connected at the first space 11-1;

[0054] The second block 12 has a second space 12-1, and another insulating slot paper 100 and another enameled wire 200 are connected at the second space 12-1;

[0055] After the first block 11 and the second block 12 are spliced through the splicing area 13, the first space 11-1 and the second space 12-1 are combined into a complete inner space 14;

[0056] Specifically, during implementation, the stator core 10 has a first block 11 and a second block 12; there are two splicing areas 13 between the first block 11 and the second block 12; the first block 11 has a first space 11-1; the second block 12 has a second space 12-1;

[0057] Before the first block 11 and the second block 12 are spliced, the insulating slot paper 100 and the enameled wire 200 are wound and connected at the first space 11-1, and the insulating slot paper 100 and the enameled wire 200 are wound and connected at the second space 12-1;

[0058] Since the first block 11 and the second block 12 are separately arranged, the first space 11-1 and the second space 12-1 are in an open state, realizing the connection of the enameled wire 200 without a skeleton. When winding the enameled wire 200, the operation is relatively convenient, the winding efficiency is relatively high, and after the first block 11 and the second block 12 are spliced through the splicing area 13, the first space 11-1 and the second space 12-1 are combined into a complete inner space 14, forming an integral stator core 10, ensuring the structural strength and service performance;

[0059] Another implementation method:

[0060] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 shown; during implementation, the structures of the first block 11 and the second block 12 are the same;

[0061] The structures of the first space 11-1 and the second space 12-1 are the same;

[0062] Among them, the first block 11 or the second block 12 includes: a first part 11-2; a second part 11-3, which is arranged opposite and spaced apart from the first part 11-2, and the second part 11-3 has a through hole 10-1; a third part 11-4, connecting one end of the first part 11-2 and one end of the second part 11-3; and a fourth part 11-5, connected to the middle position of the third part 11-4, arranged between the first part 11-2 and the second part 11-3, and forming two concave spaces 11-6 between the first part 11-2, the second part 11-3 and the third part 11-4;

[0063] The outer shape of the first part 11-2 is an arc structure;

[0064] The outer shape of the second part 11-3 is an arc structure;

[0065] The outer shape of the third part 11-4 is a rectangular structure;

[0066] The outer shape of the fourth part 11-5 is a crescent structure;

[0067] The splicing area 13 is provided at the other ends of the first part 11-2 and the second part 11-3;

[0068] The arc center points of the first part 11-2 and the second part 11-3 are the same point;

[0069] The arc length dimension of the first part 11-2 is smaller than the arc length dimension of the second part 11-3;

[0070] The third part 11-4 is parallel to the central connection line A of the through hole 10-1;

[0071] The fourth part 11-5 has two arc protruding corners 11-51, and the arc protruding corners 11-51 are transitioned with the first part 11-2 and the third part 11-4, and between the arc protruding corners 11-51 and the second part 11-3 and the third part 11-4 through fillets 11-52;

[0072] The control of the shapes of the first part 11-2, the second part 11-3, the third part 11-4 and the fourth part 11-5 is convenient for processing and manufacturing, and is relatively beautiful after the first block 11 and the second block 12 are assembled;

[0073] The setting of the arc protruding corners 11-51 and the fillets 11-52 has a smooth transition and will not scratch the enameled wire 200;

[0074] There is an included angle B between the arc-shaped protruding corners 11-51, and the included angle B is 60°. The control of the angle dimension makes the opening 11-61 of the concave space 11-6 relatively large, increasing the winding space, which is beneficial to the insertion of the insulating slot paper 100 and the winding of the enameled wire 200 at the concave space 11-6. The operation is relatively convenient and the winding efficiency is improved.

[0075] An inner concave space 11-6 is formed between the arc-shaped protruding corner 11-51, the rounded corner 11-52 and the first part 11-2.

[0076] Another inner concave space 11-6 is formed between the arc-shaped protruding corner 11-51, the rounded corner 11-52 and the second part 11-3.

[0077] The volume dimension of the inner concave space 11-6 is smaller than the volume dimension of the first space 11-1 or smaller than the volume dimension of the second space 12-1. The insulating slot paper 100 and the enameled wire 200 are connected at the inner concave space 11-6. Before assembly, the first space 11-1 and the second space 12-1 are in an open state. The insulating slot paper 100 is inserted into the inner concave space 11-6, and the enameled wire 200 is wound between the two insulating slot papers 100. The operation is relatively convenient and the winding efficiency is relatively high.

[0078] Wherein, the splicing area 13 includes: a first surface 13-1 provided on the first part 11-2; a second surface 13-2 provided on the second part 11-3; a protruding part 13-3 provided on the first surface 13-1; and a concave part 13-4 provided on the second surface 13-2 for splicing with the protruding part 13-3. After splicing, the second surface 13-2 contacts the first surface 13-1.

[0079] The first surface 13-1 and the second surface 13-2 are flat surfaces, the protruding part 13-3 is a dovetail rib, and the concave part 13-4 is a dovetail groove. After splicing, the second surface 13-2 contacts the first surface 13-1, and the dovetail rib matches the dovetail groove. Not only is the assembly of the first block 11 and the second block 12 relatively convenient, but also after assembly, the first block 11 and the second block 12 can form a relative whole and will not separate or fall off.

[0080] The connecting line C between the first surface 13-1 and the second surface 13-2 forms an included angle D with the central connecting line A on the through hole 10-1. The included angle D is 7°-20°. The control of the angle dimension increases the contact area between the second surface 13-2 and the first surface 13-1, improves the conduction effect, ensures the performance, and will not scrape (scraping means contact friction between two or more objects) the enameled wire 200, protecting the enameled wire 200.

[0081] Another embodiment:

[0082] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 ; During implementation, it further includes: an arc-shaped inner protrusion 11-7, connected to the second part 11-3, disposed in the first space 11-1 or the second space 12-1, and close to the through hole 10-1 and the splicing area 13;

[0083] The outer shape of the arc-shaped inner protrusion 11-7 is an arc structure, starting from near the splicing area 13 and extending in an arc state away from the splicing area 13. When reaching the center connection line A, it turns towards the second part 11-3 and extends in an arc state until it is seamlessly connected to the second part 11-3;

[0084] The provision of the arc-shaped inner protrusion 11-7 not only increases the local thickness dimension and ensures the structural strength, but also when the insulating slot paper 100 is snapped into the concave space 11-6, when the first sub-block 11 and the second sub-block 12 are spliced, the arc-shaped inner protrusion 11-7 can block and guide the insulating slot paper 100, so that the insulating slot paper 100 does not contact the splicing area 13, affecting the splicing, and the reliability of the structure is relatively good;

[0085] Regarding the structure of the insulating slot paper 100 and the enameled wire 200;

[0086] See Figure 1 ; The insulating slot paper 100 and the enameled wire 200 are common structures in the prior art, not the inventive points of the present invention. They are only for better describing the present invention and facilitating the understanding of the technical solution of the present invention;

[0087] Regarding the skeleton structure in the prior art:

[0088] See Figure 5 ; The skeleton 500 is a common structure in the prior art, not the inventive point of the present invention. It is only for better describing the present invention and facilitating the understanding of the technical solution of the present invention. The technical solution of the present application adopts a structure without a skeleton, which not only ensures the performance, but also reduces the process of installing the skeleton 500. When winding the enameled wire 200, the operation is relatively convenient and the winding efficiency is relatively high;

[0089] The working principle is as follows: Before the first sub-block 11 and the second sub-block 12 are spliced, the insulating slot paper 100 is snapped into the concave space 11-6, the enameled wire 200 is wound between the two insulating slot papers 100, the insulating tape 300 is wound around the enameled wire 200 (the insulating tape 300 is used to prevent the enameled wire 200 from loosening), and the connecting wire 400 is welded to the enameled wire 200;

[0090] Between the first block 11 and the second block 12, the convex portion 13-3 and the concave portion 13-4 are matched to form an integral stator core 10. The inner space 14 in the middle position is conducive to the motor rotor passing through.

[0091] Since the first block 11 and the second block 12 are separately arranged, the first space 11-1 and the second space 12-1 are in an open state, realizing the connection of the enameled wire 200 without a skeleton. When winding the enameled wire 200, the operation is relatively convenient and the winding efficiency is relatively high.

[0092] In the description, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc. indicating the orientation or position relationship are based on the position relationship described in the drawings, and are only for the convenience of description or simplification of the description, rather than indicating a specific orientation that must be possessed; the operation process described in the embodiment is not an absolute usage step, and corresponding adjustments can be made during actual use.

[0093] Unless otherwise defined individually, the technical terms or scientific terms used herein should be the ordinary meanings understood by those with ordinary skills in the art; the "first", "second" and similar words used in the specification and claims do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a" or "one" do not necessarily represent a quantity limitation, but indicate that there is at least one, and it needs to be determined according to the content of the embodiment.

[0094] The above is only a preferred specific implementation manner, but the protection scope is not limited thereto. Any person skilled in the art within the disclosed technical scope, according to the technical solution and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope.

Claims

1. The stator of the single-phase series-excited motor has a segmented and frameless structure, including: Stator core (10); characterized in that: The stator core (10) has a first block (11) and a second block (12); There are two splicing areas (13) between the first block (11) and the second block (12); The first block (11) has a first space (11-1), and an insulating slot paper (100) and an enameled wire (200) are connected at the first space (11-1); The second block (12) has a second space (12-1), and another insulating slot paper (100) and another enameled wire (200) are connected at the second space (12-1); After the first block (11) and the second block (12) are spliced through the splicing area (13), the first space (11-1) and the second space (12-1) are combined into a complete inner space (14).

2. The single-phase series-wound motor stator split frameless structure according to claim 1, wherein: The structures of the first block (11) and the second block (12) are the same; The structures of the first space (11-1) and the second space (12-1) are the same.

3. The single-phase series-wound motor stator split frameless structure according to claim 2, characterized in that: The first block (11) or the second block (12) includes: a first part (11-2); a second part (11-3), which is arranged opposite and spaced from the first part (11-2), and has a through hole (10-1) on the second part (11-3); a third part (11-4), which connects one end of the first part (11-2) and one end of the second part (11-3); and a fourth part (11-5), which is connected to the middle position of the third part (11-4), is arranged between the first part (11-2) and the second part (11-3), and forms two concave spaces (11-6) with the first part (11-2), the second part (11-3) and the third part (11-4); The insulating slot paper (100) and the enameled wire (200) are connected at the concave space (11-6).

4. The single-phase series-excitation motor stator segmented frameless structure according to claim 3, characterized in that: The outer shape of the first part (11-2) is an arc structure; The outer shape of the second part (11-3) is an arc structure; The outer shape of the third part (11-4) is a rectangular structure; The outer shape of the fourth part (11-5) is a crescent structure; The splicing area (13) is provided at the other ends of the first part (11-2) and the second part (11-3); The arc center points of the first part (11-2) and the second part (11-3) are the same point; The arc length dimension of the first part (11-2) is smaller than the arc length dimension of the second part (11-3); The third part (11-4) is parallel to the center line A of the through hole (10-1); The fourth part (11-5) has two arc-shaped protruding corners (11-51). Between the arc-shaped protruding corners (11-51) and the first part (11-2) and the third part (11-4), and between the arc-shaped protruding corners (11-51) and the second part (11-3) and the third part (11-4), there are fillets (11-52) for transition; There is an included angle B between the arc-shaped protruding corners (11-51); Between the arc-shaped protruding corners (11-51), the fillets (11-52) and the first part (11-2), there is formed an inner concave space (11-6); Between the arc-shaped protruding corners (11-51), the fillets (11-52) and the second part (11-3), there is formed another inner concave space (11-6).

5. The single-phase series-wound motor stator segmented frameless structure according to claim 4, wherein: The included angle B is 60°; 6. The single-phase series-excitation motor stator segmented frameless structure according to claim 4 or 5, characterized in that: The splicing area (13) includes: a first surface (13-1) provided on the first part (11-2); a second surface (13-2) provided on the second part (11-3); a protruding portion (13-3) provided on the first surface (13-1); and a concave portion (13-4) provided on the second surface (13-2) for splicing with the protruding portion (13-3). After splicing, the second surface (13-2) contacts the first surface (13-1).

7. The single-phase series-wound motor stator split frameless structure according to claim 6, characterized in that: The connecting line C between the first surface (13-1) and the second surface (13-2) forms an included angle D with the central connecting line A on the through hole (10-1).

8. The single-phase series-excitation motor stator split frameless structure according to claim 7, characterized in that: The included angle D is 7°-20°; 9. The single-phase series-excitation motor stator segmented frameless structure according to claim 8, characterized in that: The protruding portion (13-3) is a dovetail rib; the concave portion (13-4) is a dovetail groove.

10. The single-phase series-wound motor stator segmented frameless structure according to claim 9, characterized in that: It further includes: an arc-shaped inner protrusion (11-7) connected to the second part (11-3), provided in the first space (11-1) or the second space (12-1), and close to the through hole (10-1) and the splicing area (13); The outer shape of the arc-shaped inner protrusion (11-7) is an arc-shaped structure. The outer shape starts from the vicinity of the splicing area (13) and extends in an arc state away from the splicing area (13). When it reaches the central connecting line A, it turns in the direction of the second part (11-3) and extends in an arc state until it is seamlessly connected to the second part (11-3).

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