A motor wire rack and shielded pump

Abstract

The utility model discloses a motor wire frame and shielding pump, a motor wire frame, including upper half frame, lower half frame and iron core accommodating groove. A plurality of first winding parts and first iron core groove are equipped on the upper half frame, and the lower half frame is embedded with the upper half frame, a plurality of second winding parts and second iron core groove are equipped on the lower half frame, the first winding part includes first end plate and two groups of first side plate of setting in first end plate both sides, and the second winding part includes second end plate and two groups of second side plate of setting in second end plate both sides, through with the outside of first end plate and second end plate setting arc surface, can under the condition that the thickness of first end plate and second end plate is increased slightly, can increase the transition fillet radius between first end plate and first side plate and the transition fillet radius between second end plate and second side plate, make winding machine when winding wire on first winding part and second winding part, copper wire insulation layer will not be broken by the edge, and then avoid the bad consequence produced therefore.

Description

Technical Field

[0001] This utility model relates to the field of shielded pump technology, and in particular to a motor frame and a shielded pump. Background Technology

[0002] The motor is the kinetic energy component of the canned motor pump. The motor includes a stator assembly and a rotor assembly. The stator assembly includes an iron core, a front motor frame, a rear motor frame, and enameled wire. The rotor assembly includes an impeller, a cover plate, a shaft, a magnetic core assembly, and bearings.

[0003] During the stator assembly process, the iron core is placed between the front and rear of the motor winding frame, and then wound using a winding machine. During high-speed winding, the copper wire insulation layer is easily damaged due to the winding machine tension and the structure of the motor winding frame, causing short circuits between the copper wires. This alters the motor's resistance and inductance, thus affecting its performance. The reason for this problem is that the chamfer at the junction of the upper and lower planes and the side of the winding area of ​​the motor winding frame is small. During high-speed winding, the copper wire insulation layer is easily damaged at the junction, causing short circuits between the copper wires. If the chamfer at the junction is increased, the chamfer inside the iron core will be approximately zero, resulting in a very thin wall at the junction of the winding area. During winding, the strong friction between the copper wire and the thin wall can cause the winding frame to break at the junction edge, resulting in a short circuit between the copper wire and the iron core, leading to adverse consequences. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a motor wire frame that can prevent the copper wire insulation layer from cracking at the junction of the wire frame during winding.

[0005] This utility model also proposes a shielded pump having the aforementioned motor frame.

[0006] According to a first aspect of the present invention, a motor winding frame includes an upper frame, wherein the upper frame is provided with a plurality of first winding portions and a first core slot, the first core slot being located in the first winding portion; and a lower frame, which is fitted with the upper frame, wherein the lower frame is provided with a plurality of second winding portions and a second core slot, the first winding portions being fitted with the second winding portions, and the first core slot and the second core slot being fastened together to form a core receiving slot; the first winding portion includes a first end plate and two sets of first side plates disposed on both sides of the first end plate, the connection between the first end plate and the first side plates is rounded, the outer surface of the first end plate is arc-shaped, and the thickness of the first end plate is greater than the thickness of the first side plates; the second winding portion includes a second end plate and two sets of second side plates disposed on both sides of the second end plate, the connection between the second end plate and the second side plates is rounded, the outer surface of the second end plate is arc-shaped, and the thickness of the second end plate is greater than the thickness of the second side plates.

[0007] The present invention provides at least the following beneficial effects: A motor winding frame includes an upper frame, a lower frame, and a core receiving slot. The upper frame has several first winding sections and first core slots, with the first core slots located within the first winding sections. The lower frame is fitted into the upper frame and has several second winding sections and second core slots. The first winding sections and second winding sections are fitted together, and the first and second core slots are engaged to form the core receiving slot. Each first winding section includes a first end plate and two sets of first side plates disposed on both sides of the first end plate. The connection between the first end plate and the first side plates uses a rounded corner transition. The outer surface of the first end plate is curved, and the thickness of the first end plate is greater than the thickness of the first side plates. Each second winding section includes a second end plate and two sets of second side plates disposed on both sides of the second end plate. The connection between the second end plate and the second side plates uses a rounded corner transition. The outer surface of the second end plate is curved, and the thickness of the second end plate is greater than the thickness of the second side plates. By setting the outer surfaces of the first end plate and the second end plate to be arc surfaces, the transition radius between the first end plate and the first side plate and the transition radius between the second end plate and the second side plate can be increased by slightly increasing the thickness of the first end plate and the second end plate. This ensures that the copper wire insulation layer will not be scratched by the sharp edges when the winding machine winds the wire on the first winding part and the second winding part, thereby avoiding the adverse consequences.

[0008] According to some embodiments of the present invention, a first connecting groove is provided on the side of the first side plate near the first iron core groove, and a first connecting protrusion is provided on the side of the second side plate near the second iron core groove, wherein the first connecting protrusion is fitted into the first connecting groove.

[0009] According to some embodiments of the present invention, a first clearance groove is provided on the inner side of the first end plate.

[0010] According to some embodiments of the present invention, a second clearance groove is provided on the inner side of the second end plate.

[0011] According to some embodiments of the present invention, the radius of the fillet at the connection between the outer side surface of the first end plate and the outer side surface of the first side plate is not less than the thickness of the first side plate.

[0012] According to some embodiments of the present invention, the radius of the fillet at the connection between the outer side surface of the second end plate and the outer side surface of the second side plate is not less than the thickness of the second side plate.

[0013] According to some embodiments of the present invention, baffles are respectively provided on the upper half frame and the lower half frame, and a number of iron cores are arranged between the two sets of baffles, with the protruding part of the iron core inserted into the iron core receiving groove.

[0014] A shielded pump according to a second aspect embodiment of the present invention includes a motor frame according to the first aspect embodiment of the present invention.

[0015] It has at least the following beneficial effects: This type of shielded pump has all the beneficial effects brought about by the above-mentioned motor frame, which will not be repeated here.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of the motor wire frame structure of an embodiment of the present utility model (part of the iron core is omitted).

[0019] Figure 2 This is a top view of the motor wire frame according to an embodiment of the present utility model;

[0020] Figure 3 for Figure 2 Sectional view of section AA;

[0021] Figure 4 This is a cross-sectional view of the upper half of the frame in section AA of an embodiment of this utility model;

[0022] Figure 5 This is a cross-sectional view of the lower half of the frame in section AA of an embodiment of this utility model;

[0023] Figure 6 for Figure 3 A magnified view of a section at point B in the middle;

[0024] Figure 7 for Figure 3 A magnified view of a section at point C;

[0025] Figure 8 for Figure 3 A magnified view of a section at point D.

[0026] Icon labels:

[0027] Upper frame 10, first winding section 11, first end plate 111, first side plate 112, first connecting groove 113, first clearance groove 114, first core groove 12;

[0028] Lower half frame 20, second winding part 21, second end plate 211, second side plate 212, first connecting protrusion 213, second clearance groove 214, second core groove 22;

[0029] Iron core receiving slot 30;

[0030] Baffle 40. Detailed Implementation

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] Reference Figures 1 to 8 This utility model discloses a motor winding frame, including an upper frame 10, a lower frame 20, and a core receiving groove 30. The upper frame 10 has a plurality of first winding portions 11 and first core grooves 12, with the first core grooves 12 located within the first winding portions 11. The lower frame 20 is fitted into the upper frame 10, and has a plurality of second winding portions 21 and second core grooves 22. The first winding portions 11 and second winding portions 21 are fitted together, and the first core grooves 12 and second core grooves 22 are engaged to form the core receiving groove 30. The first winding section 11 includes a first end plate 111 and two sets of first side plates 112 disposed on both sides of the first end plate 111. The connection between the first end plate 111 and the first side plates 112 is rounded. The outer surface of the first end plate 111 is arc-shaped. The thickness of the first end plate 111 is greater than the thickness of the first side plates 112. The second winding section 21 includes a second end plate 211 and two sets of second side plates 212 disposed on both sides of the second end plate 211. The connection between the second end plate 211 and the second side plates 212 is rounded. The outer surface of the second end plate 211 is arc-shaped. The thickness of the second end plate 211 is greater than the thickness of the second side plates 212.

[0035] It should be noted that when the winding machine winds the conductor at high speed on the first winding section 11 and the second winding section 21, the first winding section 11 and the second winding section 21 in the prior art have too small chamfers, which causes the copper wire insulation layer to be worn off at the corners.

[0036] If the fillet radius is increased, it will cause insufficient strength of the first winding portion 11 and the second winding portion 21, resulting in destructive deformation.

[0037] It is understandable that by setting the outer surfaces of the first end plate 111 and the second end plate 211 as arc surfaces, the transition radius between the first end plate 111 and the first side plate 112 and the transition radius between the second end plate 211 and the second side plate 212 can be increased by slightly increasing the thickness of the first end plate 111 and the second end plate 211. This ensures that when the winding machine winds the wire on the first winding part 11 and the second winding part 21, the copper wire insulation layer will not be scratched by the sharp corners, thereby avoiding the adverse consequences.

[0038] It should be noted that the inner side mentioned in the text refers to the inner side of the iron core receiving groove 30; the outer side mentioned in the text refers to the outer surface of the first winding part 11 and the second winding part 21, and the wire is wound on the outer surface of the first winding part 11 and the second winding part 21.

[0039] Reference Figures 1 to 8 The first side plate 112 is provided with a first connecting groove 113 on the side near the first iron core groove 12, and the second side plate 212 is provided with a first connecting protrusion 213 on the side near the second iron core groove 22. The first connecting protrusion 213 is fitted into the first connecting groove 113.

[0040] It is understandable that the first connecting groove 113, in conjunction with the first connecting protrusion 213, enables the rapid engagement and positioning of the first core groove 12 and the second core groove 22.

[0041] Reference Figures 3 to 8 A first clearance groove 114 is provided on the inner side of the first end plate 111.

[0042] Reference Figures 3 to 8 A second clearance groove 214 is provided on the inner side of the second end plate 211.

[0043] It should be noted that the upper frame 10 and the lower frame 20 are injection molded parts. The dimensions of the first iron core groove 12 and the second iron core groove 22 will still have some errors compared with the design dimensions, so they cannot completely match the dimensions of the iron core. In order to avoid interference between the edges and corners of the iron core and the edges and corners of the first iron core groove 12 or the second iron core groove 22, which would affect the installation, the first clearance groove 114 and / or the second clearance groove 214 are opened for clearance.

[0044] Reference Figures 1 to 8 It is worth noting that in some embodiments of this utility model, the radius of the fillet at the connection between the outer side of the first end plate 111 and the outer side of the first side plate 112 is not less than the thickness of the first side plate 112.

[0045] It is understandable that by increasing the thickness of the first end plate 111 and setting the outer surface of the first end plate 111 as a curved surface, the fillet at the transition point can be significantly increased without reducing the thickness of the transition point between the first end plate 111 and the two sets of first side plates 112 on both sides. By limiting the fillet radius to be no less than the thickness of the first side plate 112, it can be ensured that the fillet at the transition point will not damage the copper wire insulation layer when the winding machine is winding.

[0046] Reference Figures 1 to 8 It is worth noting that in some embodiments of this utility model, the radius of the fillet at the connection between the outer side of the second end plate 211 and the outer side of the second side plate 212 is not less than the thickness of the second side plate 212.

[0047] It is understandable that by increasing the thickness of the second end plate 211 and setting the outer surface of the second end plate 211 as a curved surface, the fillet at the transition point can be significantly increased without reducing the thickness of the transition point between the second end plate 211 and the two sets of second side plates 212 on both sides. By limiting the fillet radius to be no less than the thickness of the first side plate 112, it can be ensured that the fillet at the transition point will not damage the copper wire insulation layer when the winding machine is winding.

[0048] Reference Figure 3 The upper frame 10 and the lower frame 20 are respectively equipped with baffles 40, and several iron cores are arranged between the two sets of baffles 40. The protruding part of the iron core is inserted into the iron core receiving groove 30.

[0049] Understandably, baffle 40 can fix several iron cores in the motor frame.

[0050] This utility model also discloses a shielded pump, which includes a motor wire frame and has all the beneficial effects of the aforementioned motor wire frame.

[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. An electrical machine wire support, characterized by, include: The upper frame (10) is provided with a plurality of first winding sections (11) and first core slots (12), the first core slots (12) being located in the first winding sections (11); The lower half frame (20) is fitted with the upper half frame (10). The lower half frame (20) is provided with a plurality of second winding portions (21) and second iron core slots (22). The first winding portion (11) is fitted with the second winding portion (21). The first iron core slot (12) and the second iron core slot (22) are fastened together to form an iron core receiving slot (30). The first winding part (11) includes a first end plate (111) and two sets of first side plates (112) disposed on both sides of the first end plate (111). The connection between the first end plate (111) and the first side plate (112) is rounded. The outer surface of the first end plate (111) is arc-shaped. The thickness of the first end plate (111) is greater than the thickness of the first side plate (112). The second winding part (21) includes a second end plate (211) and two sets of second side plates (212) disposed on both sides of the second end plate (211). The connection between the second end plate (211) and the second side plate (212) is rounded. The outer surface of the second end plate (211) is an arc surface. The thickness of the second end plate (211) is greater than the thickness of the second side plate (212).

2. The motor wire frame according to claim 1, characterized in that, The first side plate (112) is provided with a first connecting groove (113) on the side near the first iron core groove (12), and the second side plate (212) is provided with a first connecting protrusion (213) on the side near the second iron core groove (22). The first connecting protrusion (213) is fitted into the first connecting groove (113).

3. A motor wire frame according to claim 1, characterized in that, A first clearance groove (114) is provided on the inner side of the first end plate (111).

4. A motor wire frame according to claim 3, characterized in that, A second clearance groove (214) is provided on the inner side of the second end plate (211).

5. A motor wire frame according to claim 1, characterized in that, The radius of the fillet at the connection between the outer side of the first end plate (111) and the outer side of the first side plate (112) is not less than the thickness of the first side plate (112).

6. A motor wire frame according to claim 5, characterized in that, The radius of the fillet at the connection between the outer side of the second end plate (211) and the outer side of the second side plate (212) is not less than the thickness of the second side plate (212).

7. A motor wire frame according to claim 1, characterized in that, The upper half frame (10) and the lower half frame (20) are respectively provided with baffles (40), and a number of iron cores are arranged between the two sets of baffles (40), with the protruding part of the iron core inserted into the iron core receiving groove (30).

8. A canned pump, characterized in that, Includes a motor wire frame as described in any one of claims 1 to 7.

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