Positioning die for coreless motor coil

Abstract

The utility model discloses a positioning die for a coreless motor coil, which is characterized by comprising a mounting seat, a first positioning needle group and a second positioning needle group are respectively arranged on the mounting seat, and a plurality of positioning areas are formed between the first positioning needle group and the second positioning needle group; wherein the first positioning needle group comprises a plurality of first positioning needles which are uniformly arranged at intervals in the transverse direction, the second positioning needle group comprises a plurality of second positioning needles which are uniformly arranged in the transverse direction, and each positioning area is composed of two adjacent first positioning needles and two adjacent second positioning needles. When the coils are placed in the positioning areas, the first positioning pins and the second positioning pins abut against the outer sides of the coils respectively, then outer ring positioning of the coils is achieved, the multiple coils can be stacked and arranged through the multiple positioning areas, seamless connection is achieved, auxiliary holes do not need to be reserved, and the performance of the coils is greatly improved.

Description

Technical Field

[0001] The utility model particularly relates to a positioning die for a coreless cup motor coil. Background Art

[0002] Windings are the hub of electromechanical energy conversion in electric motors, and the cup-type winding forming process is the core technology of coreless motors. Coreless motor cup-type winding structures come in a variety of forms, with concentric winding being one of them. It is widely used due to its high slot fill factor, wide range of coil thicknesses, high power density, and compatibility with motors of various dimensions. Concentric windings consist of several independent coils spliced ​​together, with adjacent coils stacked on top of each other to form a circular ring shape. This is also called a cup winding. The coils are made of enameled wire that is either heat-bonded or solvent-bonded. Heat or solvent treatment during the winding process allows the coils to bond and form.

[0003] Positioning molds are often used when coils are stacked on each other. Existing positioning molds usually use two positioning pins to abut the inner ring of the coil for positioning. The inner ring positioning method requires a process hole to be left on the coil, but leaving a process hole will easily lead to a decrease in coil performance and cannot meet usage requirements. Utility Model Content

[0004] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a positioning mold for a coreless motor coil.

[0005] A positioning mold for a coreless motor coil comprises a mounting base, wherein a first positioning needle group and a second positioning needle group are respectively provided on the mounting base, and a plurality of positioning areas are formed between the first positioning needle group and the second positioning needle group;

[0006] Among them, the first positioning needle group includes a plurality of first positioning needles evenly spaced along the transverse direction, the second positioning needle group includes a plurality of second positioning needles evenly spaced along the transverse direction, and a single positioning area is composed of two adjacent first positioning needles and two adjacent second positioning needles.

[0007] In one embodiment, the mounting seat includes a connecting seat and an adjusting seat, the adjusting seat is located on one side of the connecting seat and can move back and forth longitudinally relative to the connecting seat, the first positioning needle group is arranged on the connecting seat, and the second positioning needle group is arranged on the adjusting seat, and an adjustment structure is arranged between the connecting seat and the adjusting seat to adjust the longitudinal distance between the two.

[0008] In one embodiment, the adjustment structure includes a tightening screw and a connecting screw. A first through hole and a first screw hole are respectively provided on one side of the adjustment seat, and a second screw hole is provided on one side of the connecting seat corresponding to the first through hole. The connecting screw passes through the first through hole and is threadedly connected to the second screw hole. The tightening screw is threadedly inserted into the first screw hole and one end is against the side wall of the connecting seat.

[0009] In one embodiment, a connecting pin is spaced apart on one side of the connecting seat, and the movable sleeve of the adjusting seat is placed on the connecting pin.

[0010] In one embodiment, it also includes a base and a cover, an inner cavity is formed between the base and the cover, the mounting seat is movably arranged in the inner cavity, a plurality of second through holes are respectively provided on the cover corresponding to the first positioning pin and the second positioning pin, the first positioning pin and the second positioning pin are respectively protruded above the cover through the second through holes, a connecting shaft is provided on the lower side of the mounting seat, one end of the connecting shaft passes through the base and is located below the base, and a spring is provided on the connecting shaft and between the mounting seat and the base.

[0011] In one embodiment, a notch is provided on one side of the cover corresponding to the adjustment seat.

[0012] In one embodiment, the two first positioning pins and the two second positioning pins constituting the positioning area are arranged in a rectangular shape.

[0013] In one embodiment, the first positioning pin or the second positioning pin is flexibly deformable.

[0014] In one embodiment, the base and the cover are detachably connected.

[0015] In summary, the present invention has the following beneficial effects compared to the prior art:

[0016] The utility model forms a positioning area by cooperating with two adjacent first positioning pins and two adjacent second positioning pins. When the coil is placed in the positioning area, the first positioning pin and the second positioning pin respectively contact the outside of the coil, thereby realizing the positioning of the outer ring of the coil. In this way, several coils can be stacked and arranged with each other through several positioning areas to achieve seamless connection without reserving process holes, which greatly improves the performance of the coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an exploded schematic diagram of a positioning mold for a coreless cup motor coil in one embodiment of the present utility model;

[0018] Figure 2 This is a schematic cross-sectional view of a positioning mold for a coreless motor coil in one embodiment of the present invention;

[0019] Figure 3 The figure is a schematic diagram of the three-dimensional structure of a positioning mold for a hollow cup motor coil in one embodiment of the present utility model. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0021] like Figures 1 to 3 The embodiment of the utility model presented preferably provides a positioning mold for a hollow cup motor coil, including a mounting seat 1, on which a first positioning needle group and a second positioning needle group are respectively provided, and a plurality of positioning areas 2 are formed between the first positioning needle group and the second positioning needle group; wherein, the first positioning needle group includes a plurality of first positioning needles 3 evenly spaced along the horizontal direction, and the second positioning needle group includes a plurality of second positioning needles 4 evenly arranged along the horizontal direction, and a single positioning area 2 is composed of two adjacent first positioning needles 3 and two adjacent second positioning needles 4.

[0022] Specifically, a positioning area is formed by cooperating between two adjacent first positioning pins and two adjacent second positioning pins. When the coil is placed in the positioning area, the first positioning pin and the second positioning pin respectively contact the outside of the coil, thereby realizing the positioning of the outer ring of the coil. In this way, several coils can be stacked and arranged with each other through several positioning areas to achieve seamless connection without reserving process holes, which greatly improves the performance of the coil.

[0023] Furthermore, the mounting base 1 includes a connecting base 11 and an adjustment base 12. The adjustment base 12 is located on one side of the connecting base 11 and can move back and forth longitudinally relative to the connecting base 11. The first positioning pin group is disposed on the connecting base 11, and the second positioning pin group is disposed on the adjustment base 12. An adjustment structure 5 is provided between the connecting base 11 and the adjustment base 12 to adjust the longitudinal spacing therebetween. Specifically, the longitudinal spacing between the connecting base and the adjustment base can be adjusted by adjusting the adjustment structure, thereby adjusting the longitudinal spacing between the first and second positioning pin groups to meet the positioning requirements of different coil sizes.

[0024] Furthermore, the adjustment structure 5 includes a tightening screw 51 and a connecting screw 52. A first through hole 53 and a first screw hole 54 are respectively provided on one side of the adjustment seat 12. A second screw hole 55 is provided on one side of the connecting seat 11 corresponding to the first through hole 53. The connecting screw 52 passes through the first through hole 53 and is threadedly connected to the second screw hole 55. The tightening screw 51 is threadedly inserted into the first screw hole 54 and one end is against the side wall of the connecting seat 11.

[0025] Specifically, the connecting screw is passed through the first through hole of the adjustment seat and is threadedly connected to the second screw hole of the connecting seat, so that the connecting screw is in a connection state of the press-fit adjustment seat, and then the tightening screw is tightly pressed against the side wall of the connecting seat along the first screw hole of the adjustment seat to form a top-pull adjustment structure between the adjustment seat and the connecting seat, thereby realizing the adjustment of the longitudinal spacing between the adjustment seat and the connecting seat.

[0026] Furthermore, a connecting pin 56 is provided at intervals on one side of the connecting seat 11, and the adjusting seat 12 is movably sleeved on the connecting pin 56. Thus, the adjusting seat can move back and forth longitudinally relative to the connecting seat.

[0027] Furthermore, it also includes a base 6 and a cover 7, an inner cavity 8 is formed between the base 6 and the cover 7, the mounting seat 1 is movably arranged in the inner cavity 8, and a plurality of second through holes 71 are respectively provided on the cover 7 corresponding to the first positioning pin 3 and the second positioning pin 4. The first positioning pin 3 and the second positioning pin 4 protrude outward from the cover 7 through the second through holes 71 respectively. A connecting shaft 72 is provided on the lower side of the mounting seat 1, one end of the connecting shaft 72 passes through the base 6 and is located below the base 6, and a spring 73 is sleeved on the connecting shaft 72 and located between the mounting seat 1 and the base 6.

[0028] Specifically, the spring is used to enable the mounting seat to move elastically up and down relative to the cover, and then the user can pull the connecting shaft to move the mounting seat downward relative to the cover, thereby driving the first positioning needle group and the second positioning needle group to move downward and separate from the coil located in the positioning area, realizing the core-pulling displacement of the positioning needle group, and facilitating the removal of the coil after processing and forming.

[0029] Furthermore, a notch 74 is provided on one side of the cover 7 corresponding to the adjustment seat 12. The user can adjust the adjustment seat through the notch.

[0030] Furthermore, the two first positioning pins 3 and the two second positioning pins 4 constituting the positioning area 2 are arranged in a rectangular shape.

[0031] Furthermore, the first positioning pin 3 or the second positioning pin 4 is flexibly deformable. The flexibly deformable positioning pin can be flexibly deformed when the coil is placed, thereby facilitating the placement of the coil.

[0032] Furthermore, the base 6 and the cover 7 are detachably connected, thereby facilitating disassembly and maintenance.

[0033] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning mold for a coreless motor coil, characterized by: The invention comprises a mounting seat (1), wherein a first positioning needle group and a second positioning needle group are respectively provided on the mounting seat (1), and a plurality of positioning areas (2) are formed between the first positioning needle group and the second positioning needle group; wherein the first positioning needle group comprises a plurality of first positioning needles (3) uniformly spaced apart in the transverse direction, and the second positioning needle group comprises a plurality of second positioning needles (4) uniformly spaced apart in the transverse direction, and a single positioning area (2) is composed of two adjacent first positioning needles (3) and two adjacent second positioning needles (4).

2. The positioning mold for a coreless motor coil according to claim 1, characterized in that: The mounting seat (1) comprises a connecting seat (11) and an adjusting seat (12), wherein the adjusting seat (12) is located on one side of the connecting seat (11) and can make longitudinal reciprocating movements relative to the connecting seat (11), the first positioning needle group is arranged on the connecting seat (11), and the second positioning needle group is arranged on the adjusting seat (12), and an adjusting structure (5) is arranged between the connecting seat (11) and the adjusting seat (12) for adjusting the longitudinal distance between the two.

3. The positioning mold for a coreless motor coil according to claim 2, characterized in that: The adjustment structure (5) includes a tightening screw (51) and a connecting screw (52); a first through hole (53) and a first screw hole (54) are respectively provided on one side of the adjustment seat (12); a second screw hole (55) is provided on one side of the connecting seat (11) corresponding to the first through hole (53); the connecting screw (52) passes through the first through hole (53) and is threadedly connected to the second screw hole (55); the tightening screw (51) is threadedly inserted into the first screw hole (54) and one end thereof abuts against the side wall of the connecting seat (11).

4. The positioning mold for a coreless motor coil according to claim 2, characterized in that: A connecting pin (56) is provided at intervals on one side of the connecting seat (11), and the adjusting seat (12) is movably sleeved on the connecting pin (56).

5. The positioning mold for a coreless motor coil according to claim 1, characterized in that: It also includes a base (6) and a cover (7), an inner cavity (8) is formed between the base (6) and the cover (7), the mounting seat (1) is movably arranged in the inner cavity (8), and a plurality of second through holes (71) are respectively provided on the cover (7) corresponding to the first positioning pin (3) and the second positioning pin (4), and the first positioning pin (3) and the second positioning pin (4) are respectively protruded above the cover (7) through the second through holes (71). A connecting shaft (72) is provided on the lower side of the mounting seat (1), one end of the connecting shaft (72) passes through the base (6) and is located below the base (6), and a spring (73) is sleeved on the connecting shaft (72) and located between the mounting seat (1) and the base (6).

6. The positioning mold for coreless motor coil according to claim 5, characterized in that: A notch (74) is provided on one side of the cover (7) corresponding to the adjustment seat (12).

7. The positioning mold for a coreless motor coil according to claim 1, characterized in that: The two first positioning needles (3) and the two second positioning needles (4) constituting the positioning area (2) are arranged in a rectangular shape.

8. The positioning mold for coreless motor coil according to claim 1, characterized in that: The first positioning needle (3) or the second positioning needle (4) is capable of flexible deformation.

9. The positioning mold for a coreless motor coil according to claim 5, characterized in that: The base (6) and the cover (7) are detachably connected.

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