Motor insulation framework assembly for pump, motor and pump

Abstract

The utility model provides a pump motor insulation skeleton assembly, a motor and a pump, the pump motor insulation skeleton assembly comprises a skeleton body, a first phase enamelled wire, a second phase enamelled wire and a third phase enamelled wire, the skeleton body is annularly provided with a plurality of winding teeth and tooth parts, a stator slot is arranged between two groups of tooth parts, and the first phase enamelled wire, the second phase enamelled wire and the third phase enamelled wire are arranged in the stator slot. An overline groove is formed between every two adjacent groups of winding teeth; the first-phase enameled wire is led into the stator slot from the first overline slot and led out from the adjacent second overline slot; a second-phase enameled wire is led into the stator slot from the third overline slot and led out from the fourth overline slot adjacent to the third overline slot; the third-phase enameled wire is led into the stator slot through the fifth overline slot and led out from the sixth overline slot adjacent to the fifth overline slot; and the second-phase enameled wire and the third-phase enameled wire are led into the stator slot from the corresponding overline slot at an interval of a first preset angle alpha 1 along the anticlockwise direction, and are led out through the overline slot adjacent to the overline slot in the clockwise direction.

Description

Technical Field

[0001] The utility model belongs to the technical field of pumps, and in particular relates to an insulating frame component of a motor for a pump, a motor and a pump. Background Art

[0002] In the prior art, after the enameled wire in the motor insulation frame is wound, the three-phase line is connected end to end. Therefore, after the three-phase line is wound, a triangle wiring method is mostly used, and there is a phenomenon of crossing between wires. This wiring method has the problem of line confusion, and thus fails to meet safety regulations, which greatly reduces production efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an insulating skeleton assembly, a motor and a pump for a pump motor. After the insulating skeleton is wound, there is no cross-line connection in the three-phase enameled wires of the motor, thus avoiding the hidden dangers of poor safety regulations.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] An insulating skeleton assembly for a pump motor comprises a skeleton body, a first-phase enameled wire, a second-phase enameled wire and a third-phase enameled wire, wherein the skeleton body is provided with a plurality of winding teeth and a plurality of tooth portions, a stator slot is provided between two groups of the tooth portions, and a cross-wire slot is provided between two adjacent groups of the winding teeth;

[0006] The first phase enameled wire is introduced into the stator slot from the first cross-wire slot, and is led out from the second cross-wire slot adjacent thereto, wherein the second cross-wire slot is located in the clockwise direction of the first cross-wire slot;

[0007] The first phase enameled wire is introduced into the stator slot from the corresponding cross-wire slot at intervals of a first preset angle in the clockwise direction, and is led out through the cross-wire slot adjacent to the cross-wire slot in the clockwise direction, and the first preset angle is α1=(360 / cross-wire slot)*3;

[0008] The second-phase enameled wire is introduced into the stator slot from the third cross-wire slot, and is led out from the fourth cross-wire slot adjacent thereto, wherein the fourth cross-wire slot is located in the clockwise direction of the third cross-wire slot;

[0009] The third cross-line slot is located in the counterclockwise direction of the first cross-line slot and is spaced by a second preset angle α2, where α2=(360 / number of cross-line slots)*4;

[0010] The third-phase enameled wire is introduced into the stator slot through the fifth cross-wire slot, and is led out from the sixth cross-wire slot adjacent thereto, wherein the sixth cross-wire slot is located in the clockwise direction of the fifth cross-wire slot;

[0011] The fifth cross-line groove is located in the counterclockwise direction of the third cross-line groove and is spaced by a second preset angle α2;

[0012] The second-phase enameled wire and the third-phase enameled wire are both introduced into the stator slot from the corresponding cross-wire slot at intervals of a first preset angle α1 in the counterclockwise direction, and are led out through the cross-wire slot adjacent to the cross-wire slot in the clockwise direction.

[0013] Preferably, the cross-wire grooves are provided on both sides of each tooth portion, and the angle β1 between the radial center line of the cross-wire groove into which the enameled wire of each phase is introduced and the radial center line of the tooth portion is in the range of 7°-12°.

[0014] Preferably, a guide portion is provided on the outer wall of the winding tooth, and the first phase enameled wire, the second phase enameled wire and the third phase enameled wire are located above or below the guide portion.

[0015] Preferably, two groups of guide portions are arranged on the outer wall of each group of winding teeth, and the two groups of guide portions are arranged one above the other.

[0016] Preferably, the two groups of guide portions provided on the outer wall of each group of winding teeth are spaced apart by a preset distance in the circumferential direction along the outer circumference of the winding teeth.

[0017] Preferably, the guide portion is provided on the outer wall of one of every two adjacent groups of the winding teeth.

[0018] Preferably, the number of the cross-line slots is 6 slots, 9 slots, 12 slots or 18 slots.

[0019] A motor comprises the above-mentioned pump motor insulation skeleton assembly.

[0020] A pump comprises the motor.

[0021] Preferably, the pump is a shielded pump.

[0022] Compared with the prior art, the utility model has the following beneficial effects: the above-mentioned three-phase enameled wire, through the starting ends of the three-phase enameled wire, is sequentially phased by a second preset angle α2, the first-phase enameled wire is wound clockwise, the second-phase enameled wire and the third-phase enameled wire are wound counterclockwise, and the cross-wire teeth for introducing the second-phase enameled wire and the third-phase enameled wire into the stator slot are located in the counterclockwise direction of the cross-wire teeth for leading out of the stator slot, the second-phase enameled wire and the third-phase enameled wire are wound one circle outside the corresponding winding teeth, therefore, the final three-phase enameled wire terminal ends are connected end to end, effectively avoiding the problem of enameled wire crossing in triangle wiring and avoiding the hidden dangers of poor safety regulations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a structural schematic diagram of the first angle of the insulation skeleton assembly of the pump motor in the utility model;

[0024] Figure 2 It is a structural schematic diagram of a second angle of the insulating skeleton assembly of the pump motor in the utility model;

[0025] Figure 3 It is a front view of the insulation skeleton assembly of the pump motor in the utility model.

[0026] Among them, 1. guide part; 2. tooth part; 3. stator slot; 4. winding tooth; 11. first cross-line slot; 12. second cross-line slot; 21. third cross-line slot; 22. fourth cross-line slot; 31. fifth cross-line slot; 36. sixth cross-line slot. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] like Figure 1-Figure 3 As shown, in this embodiment, an insulating skeleton assembly for a pump motor is provided, including a skeleton body, a first-phase enameled wire, a second-phase enameled wire and a third-phase enameled wire, wherein a plurality of winding teeth 4 and a plurality of tooth portions 2 are arranged on the skeleton body, the winding teeth 4 are located at the outer periphery of the tooth portion 2, a stator slot 3 is between two groups of tooth portions 2, and a cross-wire slot is between two adjacent groups of winding teeth 4; preferably, the above-mentioned winding teeth 4 and tooth portions 2 are evenly distributed along the circumference of the skeleton body.

[0035] The first-phase enameled wire is introduced into the stator slot 3 from the first cross-wire slot 11 and led out from the second cross-wire slot 12 adjacent thereto. The second cross-wire slot 12 is located in the clockwise direction of the first cross-wire slot 11.

[0036] The first phase enameled wire is introduced into the stator slot 3 from the corresponding cross-wire slot at intervals of a first preset angle in the clockwise direction, and is led out through the cross-wire slot adjacent to the cross-wire slot in the clockwise direction. The first preset angle is α1=(360 / number of cross-wire slots)*3;

[0037] The second-phase enameled wire is introduced into the stator slot 3 from the third cross-line slot 21 and led out from the fourth cross-line slot 22 adjacent thereto. The fourth cross-line slot 22 is located in the clockwise direction of the third cross-line slot 21.

[0038] The third cross-line slot 21 is located counterclockwise to the first cross-line slot 11 and is spaced by a second preset angle α2, where α2=(360 / number of cross-line slots)*4;

[0039] The second phase enameled wire is introduced into the stator slot 3 from the corresponding cross-wire slot at intervals of a first preset angle α1 in the counterclockwise direction, and is led out through the cross-wire slot adjacent to the cross-wire slot in the clockwise direction;

[0040] The third-phase enameled wire is introduced into the stator slot 3 through the fifth cross-line slot 31 and led out from the sixth cross-line slot 36 adjacent thereto. The sixth cross-line slot 36 is located in the clockwise direction of the fifth cross-line slot 31.

[0041] The fifth cross-line groove 31 is located in the counterclockwise direction of the third cross-line groove 21 and is spaced apart by a second preset angle α2;

[0042] The third phase enameled wire is introduced into the stator slot 3 from the corresponding cross-wire slot at intervals of a first preset angle α1 in the counterclockwise direction, and is led out through the cross-wire slot adjacent to the cross-wire slot in the clockwise direction.

[0043] The winding method of the above-mentioned three-phase enameled wire is that the starting ends of the three phases are sequentially separated by a second preset angle α2, the first-phase enameled wire is wound clockwise, the second-phase enameled wire and the third-phase enameled wire are wound counterclockwise, and the cross-wire teeth of the second-phase enameled wire and the third-phase enameled wire introduced into the stator slot 3 are located in the counterclockwise direction of the cross-wire teeth leading out of the stator slot 3, and the second-phase enameled wire and the third-phase enameled wire are wound one circle outside the corresponding winding teeth 4. Therefore, the final three-phase enameled wire terminal ends are connected end to end, which effectively avoids the problem of enameled wire crossing in the triangle connection and avoids the hidden dangers of poor safety regulations.

[0044] Preferably, the number of the cross-line slots is 6 slots, 9 slots, 12 slots or 18 slots. Further preferably, in this embodiment, the number of the cross-line slots is 12 slots or 18 slots.

[0045] Preferably, a cross-wire groove is provided on both sides of each tooth portion 2, and the angle β1 between the radial center line of the cross-wire groove where the enameled wire of each phase is introduced and the radial center line of the tooth portion 2 is in the range of 7°-12°. Further preferably, the angle β2 between the radial center line of the cross-wire groove where the enameled wire of each phase is led out and the radial center line of the tooth portion 2 is in the range of 9°-10°.

[0046] Since insulating paper is provided in each stator slot 3, when winding the wire, after the enameled wire enters the stator slot 3, it is as close as possible to the inner wall of the tooth portion 2, that is, the inner wall of the stator slot 3, so as to facilitate the winding of the enameled wire and the wire nozzle of the enameled wire is not easy to damage the insulating paper.

[0047] Preferably, a guide portion 1 is provided on the outer wall of the winding tooth 4, and the first phase enameled wire, the second phase enameled wire and the third phase enameled wire are located above or below the guide portion 1. The guide portion 1 is provided to guide the enameled wire wound on the outside of the winding tooth 4, and separate the upper and lower layers of enameled wire to prevent the enameled wires of each phase from contacting each other and the enameled wires from touching the stator core.

[0048] Preferably, two groups of guide parts 1 are provided on the outer wall of each group of winding teeth 4, and the two groups of guide parts 1 are arranged up and down, and the three-phase enameled wires are separated by the two groups of guide parts 1, so that the three-phase enameled wires are wound separately.

[0049] Preferably, the two groups of guide portions 1 provided on the outer wall of each group of winding teeth 4 are spaced apart by a preset distance along the circumference of the outer circumference of the winding teeth 4. The two groups of guide portions 1 separate the three-phase enameled wires and guide the three-phase enameled wires along the circumference of the winding teeth 4, so that the three-phase enameled wires are wound neatly.

[0050] Preferably, a guide portion 1 is provided on the outer wall of one of each two adjacent groups of winding teeth 4. By providing multiple groups of guide portions 1, sufficient strength is ensured to separate the three-phase enameled wires. At the same time, a guide portion 1 is provided on the outer wall of one of each two adjacent groups of winding teeth 4 to reduce processing difficulty.

[0051] The number of winding slots of the motor insulation frame in this embodiment is 18, and the winding process of the three-phase enameled wire is as follows:

[0052] The first-phase enameled wire is introduced into the stator slot 3 from the first cross-wire slot 11 and led out from the second cross-wire slot 12. The first-phase enameled wire is rotated 120° clockwise, guided by the guide portion 1, introduced into the stator slot 3 again from the cross-wire slot 13, and then led out of the stator slot 3 from the cross-wire slot 14. The winding tool is rotated 120° clockwise again, guided by the guide portion 1, and finally introduced into the stator slot from the cross-wire slot 15, and then led out of the stator slot from the cross-wire slot 16.

[0053] The starting end of the second-phase enameled wire is 80° away from the starting end of the first-phase enameled wire. The winding tool rotates counterclockwise 40°, introduces it into the stator slot 3 from the cross-wire slot 21, leads it out of the stator slot 3 from the cross-wire slot 22, rotates clockwise 120°, and the second-phase enameled wire is guided by the guide part 1, introduced from the cross-wire slot 23, and then led out from the cross-wire slot 24. The winding tool rotates clockwise 120° again, and then guides it through the guide part 1, and finally introduces it from the cross-wire slot 25, and then leads it out of the stator slot 3 from the cross-wire slot 026.

[0054] The starting end of the third-phase enameled wire is 80° away from the starting end of the second-phase enameled wire. The winding tool rotates 160° counterclockwise, and is introduced into the stator slot 3 from the fifth cross-wire slot 31, and led out from the sixth cross-wire slot 3632. The winding tool rotates 120° clockwise, and the third-phase enameled wire is guided by the guide part 1, introduced into the stator slot 3 from the cross-wire slot 033, and then led out of the stator slot 3 from the cross-wire slot 034. The winding tool rotates 120° clockwise again, and the third-phase enameled wire is guided by the guide part 1, and finally introduced into the stator slot 3 from the cross-wire slot 035, and then led out of the stator slot 3 from the cross-wire slot 036. The six enameled wires are connected end to end, that is, the beginning end of the first phase enameled wire located in the first cross-wire slot 11 is connected to the tail end of the second phase enameled wire located in the cross-wire slot 26, the beginning end of the third phase enameled wire located in the fifth cross-wire slot 31 is connected to the tail end of the first phase enameled wire located in the cross-wire slot 16, and the beginning end of the second phase enameled wire located in the third cross-wire slot 21 is connected to the tail end of the third phase enameled wire located in the cross-wire slot 36, without the need to cross the wires.

[0055] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A pump motor insulation skeleton assembly, characterized in that: It comprises a skeleton body, a first-phase enameled wire, a second-phase enameled wire and a third-phase enameled wire, wherein a plurality of winding teeth (4) and a plurality of tooth portions (2) are arranged on the skeleton body, a stator slot (3) is provided between two groups of the tooth portions (2), and a cross-wire slot is provided between two adjacent groups of the winding teeth (4); The first-phase enameled wire is introduced into the stator slot (3) from the first cross-wire slot (11), and is led out from the second cross-wire slot (12) adjacent thereto, wherein the second cross-wire slot (12) is located in the clockwise direction of the first cross-wire slot (11); The first phase enameled wire is introduced into the stator slot (3) from the corresponding cross-wire slot at intervals of a first preset angle in the clockwise direction, and is led out through the cross-wire slot adjacent to the cross-wire slot in the clockwise direction, and the first preset angle is α1=(360 / number of cross-wire slots)*3; The second-phase enameled wire is introduced into the stator slot (3) from the third cross-wire slot (21), and is led out from the fourth cross-wire slot (22) adjacent thereto, wherein the fourth cross-wire slot (22) is located in the clockwise direction of the third cross-wire slot (21); The third cross-line slot (21) is located in the counterclockwise direction of the first cross-line slot (11) and is spaced apart by a second preset angle α2, wherein α2=(360 / number of cross-line slots)*4; The third-phase enameled wire is introduced into the stator slot (3) through the fifth cross-wire slot (31), and is led out from the sixth cross-wire slot (36) adjacent thereto, wherein the sixth cross-wire slot (36) is located in the clockwise direction of the fifth cross-wire slot (31); The fifth cross-line groove (31) is located in the counterclockwise direction of the third cross-line groove (21) and is spaced apart by a second preset angle α2; The second phase enameled wire and the third phase enameled wire are both introduced into the stator slot (3) from the corresponding cross-wire slot at intervals of a first preset angle α1 in the counterclockwise direction, and are led out through the cross-wire slot adjacent to the cross-wire slot in the clockwise direction.

2. The pump motor insulation skeleton assembly according to claim 1, characterized in that: The cross-wire grooves are arranged on both sides of each tooth portion (2), and the angle β1 between the radial center line of the cross-wire groove into which the enameled wire of each phase is introduced and the radial center line of the tooth portion (2) is in the range of 7°-12°.

3. The pump motor insulation skeleton assembly according to claim 2, characterized in that: A guide portion (1) is provided on the outer wall of the winding tooth (4), and the first-phase enameled wire, the second-phase enameled wire and the third-phase enameled wire are located above or below the guide portion (1).

4. The pump motor insulation skeleton assembly according to claim 3, characterized in that: Two groups of guide parts (1) are arranged on the outer wall of each group of winding teeth (4), and the two groups of guide parts (1) are arranged one above the other.

5. The pump motor insulation skeleton assembly according to claim 4, characterized in that: The two groups of guide portions (1) arranged on the outer wall of each group of winding teeth (4) are spaced apart by a preset distance in the circumferential direction along the outer circumference of the winding teeth (4).

6. The pump motor insulation skeleton assembly according to claim 5, characterized in that: The guide portion (1) is provided on the outer wall of one of the two adjacent groups of winding teeth (4).

7. The pump motor insulation skeleton assembly according to any one of claims 1 to 6, characterized in that: The number of the cross-line slots is 6 slots, 9 slots, 12 slots or 18 slots.

8. A motor, characterized in that: It comprises the insulation skeleton assembly for a pump motor as described in any one of claims 1 to 7.

9. A pump, characterized in that: Comprising the motor as claimed in claim 8.

10. The pump according to claim 9, characterized in that The pump is a shielded pump.

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