Stepping motor winding insulation device

Abstract

The utility model discloses a stepping motor winding insulation device, which relates to the technical field of stepping motors and comprises a stator shell, stator iron cores are arranged on the inner side of the stator shell in an annular array mode, a winding insulation frame is arranged on the outer side of each stator iron core, and the winding insulation frame is arranged on the outer side of the stator shell. A stator coil is wound on the winding insulating frame; the winding insulation frame comprises two symmetrically-arranged arc-shaped outer frames, arc-shaped inner plates are integrally arranged at the bottoms of the arc-shaped outer frames, and bent baffles are integrally arranged on the two sides of each arc-shaped inner plate. An iron core slot is formed in the arc-shaped outer frame, the arc-shaped outer frame is sleeved on the outer side of the stator iron core, and the stator iron core penetrates through the iron core slot; according to the utility model, the two sides of the plugging transverse plate are inserted into the limiting clamping grooves, and the insulating vertical plate is positioned between the two stator coils, so that short circuit between the two stator coils is prevented, and the insulating effect on the winding is further improved.

Description

Technical Field

[0001] This utility model specifically relates to the field of stepper motor technology, and more specifically to a stepper motor winding insulation device. Background Technology

[0002] A stepper motor is an open-loop controlled motor that converts electrical pulse signals into angular or linear displacement. Its working principle is based on electromagnetic induction. When an electrical pulse is applied to the motor windings, the motor will rotate at a fixed step angle. The stepper motor windings are composed of many turns of wire. During the operation of the motor, its windings are energized. If the wires between different turns come into contact with each other, a short circuit will be formed. Therefore, an insulating structure needs to be installed on the outside of the windings. Without good insulation, current may leak to the motor casing and other components, which could lead to electric shock.

[0003] However, in practice, it has been noted that most insulation currently uses polyester film, polyimide film, etc., placed on the outside of the winding. The installation of these insulation materials is relatively cumbersome, requiring manual wrapping or placement on the outside of the winding. Furthermore, vibrations generated during use can easily cause the insulation material to shift, resulting in the winding being exposed and increasing the risk of use. Utility Model Content

[0004] The purpose of this invention is to provide a stepper motor winding insulation device. Utilizing a symmetrically arranged arc-shaped outer frame, it facilitates quick and easy installation onto the outside of the stator core. Furthermore, in conjunction with the insulating vertical plate between the two stator coils, it prevents short circuits between the stator coils, thereby improving the insulation effect of the winding. This addresses the technical problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A stepper motor winding insulation device includes a stator housing, with stator cores arranged in a ring array on the inner side of the stator housing, and a winding insulation frame installed on the outer side of each stator core, with stator coils wound on the winding insulation frame.

[0007] The winding insulation frame includes two symmetrically arranged arc-shaped outer frames, an integral arc-shaped inner plate at the bottom of the arc-shaped outer frames, and integrally arranged bent baffles on both sides of the arc-shaped inner plate.

[0008] As a further technical solution of this utility model, the arc-shaped outer frame is provided with a core slot, the arc-shaped outer frame is sleeved on the outside of the stator core, and the stator core passes through the core slot.

[0009] As a further technical solution of this utility model, the side of the arc-shaped outer frame is attached to the inner side of the stator housing, the arc-shaped inner plate is attached to the side of the stator core, and the bending baffle is located between the two stator cores.

[0010] As a further technical solution of this utility model, the ends of the arc-shaped outer frame are respectively provided with trapezoidal claws and connecting slots, and the trapezoidal claws at the ends of the arc-shaped outer frame are engaged in the connecting slots.

[0011] As a further technical solution of this utility model, a limiting slot is provided on the side of the arc-shaped outer frame near the stator housing, and a coil partition is provided between the two arc-shaped outer frames, with the end of the coil partition engaging with the limiting slot.

[0012] As a further technical solution of this utility model, the coil partition includes a pluggable horizontal plate with both ends inserted into the limiting slot, and an insulating vertical plate is integrally provided on the side of the pluggable horizontal plate, and the insulating vertical plate is located between the two arc-shaped outer frames.

[0013] As a further technical solution of this utility model, both ends of the stator housing are provided with multiple sets of threaded holes in a rectangular array, and each set of threaded holes has two holes.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this utility model, the arc-shaped outer frame, the arc-shaped inner plate, and the bent baffle work together to prevent the stator coil from contacting the stator core and the stator shell, thereby improving the insulation effect on the stator coil. Furthermore, the bent baffle can further prevent short circuits between the stator coil and the stator core.

[0016] In this invention, both sides of the plug-in horizontal plate are inserted into the limiting slots, and the insulating vertical plate is located between the two stator coils to prevent short circuits between the two stator coils, thereby improving the insulation effect on the windings.

[0017] In this invention, the ends of two symmetrical arc-shaped outer frames are fixed by trapezoidal claws and connecting slots, thereby installing the arc-shaped outer frames onto the outside of the stator core, which facilitates the assembly of the winding insulation frame by the workers and shortens the installation time. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model in use.

[0019] Figure 2 This utility model Figure 1 A magnified view of a portion of the image.

[0020] Figure 3 This utility modelFigure 1 A schematic diagram of the internal structure.

[0021] Figure 4 This utility model Figure 3 A magnified view of a portion of the image.

[0022] Figure 5 This is a three-dimensional structural diagram of the winding insulation frame in this utility model.

[0023] Figure 6 This utility model Figure 5 A magnified view of a portion of the image.

[0024] Figure 7 This utility model Figure 5 A magnified view of a portion of the image.

[0025] Figure 8 This is a three-dimensional structural diagram of the arc-shaped outer frame in this utility model.

[0026] In the picture:

[0027] Stator housing-1, stator core-2, stator coil-3, winding insulation frame-4, arc-shaped outer frame-41, core slot-42, arc-shaped inner plate-43, bending baffle-44, limit slot-45, trapezoidal claw-46, connecting slot-47, coil partition-5, plug-in horizontal plate-51, insulation vertical plate-52, threaded hole-6. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-8 This utility model provides a stepper motor winding insulation device, including a stator housing 1, with stator cores 2 arranged in a ring array on the inner side of the stator housing 1, and a winding insulation frame 4 installed on the outer side of each stator core 2, with stator coils 3 wound on the winding insulation frame 4.

[0030] The winding insulation frame 4 includes two symmetrically arranged arc-shaped outer frames 41. The bottom of the arc-shaped outer frame 41 is integrally provided with an arc-shaped inner plate 43, and the two sides of the arc-shaped inner plate 43 are integrally provided with bent baffles 44.

[0031] In this embodiment, the arc-shaped outer frame 41 is provided with a core slot 42, the arc-shaped outer frame 41 is sleeved on the outside of the stator core 2, and the stator core 2 passes through the core slot 42.

[0032] Furthermore, the side of the arc-shaped outer frame 41 is attached to the inner side of the stator housing 1, the arc-shaped inner plate 43 is attached to the side of the stator core 2, and the bending baffle 44 is located between the two stator cores 2.

[0033] In this embodiment, the ends of the arc-shaped outer frame 41 are respectively provided with trapezoidal claws 46 and connecting slots 47, and the trapezoidal claws 46 at the ends of the arc-shaped outer frame 41 are engaged in the connecting slots 47.

[0034] Furthermore, a limiting slot 45 is provided on the side of the arc-shaped outer frame 41 near the stator housing 1, and a coil partition 5 is provided between the two arc-shaped outer frames 41, with the end of the coil partition 5 engaging with the limiting slot 45.

[0035] More specifically, the coil partition 5 includes a pull-out horizontal plate 51 with both ends inserted into the limiting slot 45, and an insulating vertical plate 52 is integrally provided on the side of the pull-out horizontal plate 51, and the insulating vertical plate 52 is located between the two arc-shaped outer frames 41.

[0036] In this embodiment, both ends of the stator housing 1 are provided with multiple sets of threaded holes 6 in a rectangular array, and each set of threaded holes 6 has two holes.

[0037] By adopting the above technical solution, the workers insert the symmetrically arranged arc-shaped outer frame 41 from both ends of the stator housing 1, and align the stator core 2 with the core slot 42. Through the interlocking between the trapezoidal claws 46 and the connecting slots 47 at the ends of the arc-shaped outer frame 41, the symmetrically arranged arc-shaped outer frame 41 is fitted onto the outside of the stator core 2. The arc-shaped inner plate 43 and the bent baffle 44 can prevent the stator coil 3 from contacting the stator core 2, thus improving the insulation effect. Then, the coil partition 5 is inserted between the two winding insulation frames 4. The end of the insertion and removal horizontal plate 51 is locked in the limiting slot 45, while the insulation vertical plate 52 is located between the two stator coils 3, thus improving the insulation effect between the two stator coils 3.

[0038] In this embodiment, the winding insulation frame 4 and the coil partition 5 are arranged in a ring array of multiple units, and the winding insulation frame 4 and the coil partition 5 are spaced apart from each other to separate each group of stator coils 3, so as to prevent arc short circuits between stator coils 3.

[0039] In this embodiment, the plug-in horizontal plate 51 extends between two adjacent bent baffles 44, which serves to insulate the stator coils 3 and improve the insulation effect on the stepper motor windings.

[0040] In this embodiment, each set of arc-shaped outer frame 41 includes two symmetrical insulating shells. The two insulating shells are engaged with each other by trapezoidal claws 46 and connecting slots 47 provided at their ends. The trapezoidal claws 46 and connecting slots 47 on one side of the insulating shell are installed in opposite directions to those on the other side of the insulating shell.

[0041] In this embodiment, the stator coil 3 is wound around the outside of the insulating shell, and the stator coil 3 is located between the arc-shaped outer frame 41 and the arc-shaped inner plate 43.

[0042] In this embodiment, the plug-in horizontal plate 51 is located between the two stator coils 3, further improving the insulation effect on the stator coils 3.

[0043] The working principle of this utility model is as follows: In use, the symmetrically arranged arc-shaped outer frames 41 are first inserted from both ends of the stator housing 1, and the stator core 2 is aligned with the core slot 42. The symmetrically arranged arc-shaped outer frames 41 are fitted onto the outside of the stator core 2 by the interlocking of the trapezoidal claws 46 and connecting slots 47 at the ends of the arc-shaped outer frames 41. The stator coil 3 is wound around the arc-shaped outer frames 41, and the stator coil 3 is located between the arc-shaped outer frames 41 and the arc-shaped inner plate 43. The arc-shaped inner plate 43 and the bending baffle 44 can prevent the stator coil 3 from contacting the stator core 2, thereby improving the insulation effect. Then, the coil partition 5 is inserted between the two winding insulation frames 4. The end of the insertion and removal horizontal plate 51 is locked in the limiting slot 45, and the insulation vertical plate 52 is located between the two stator coils 3, thereby preventing short circuits between the two stator coils 3 and improving the insulation effect of the winding.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A stepper motor winding insulation device, characterized in that: The stator includes a stator housing (1), and stator cores (2) are arranged in a ring array on the inner side of the stator housing (1). Each stator core (2) has a winding insulation frame (4) installed on its outer side, and a stator coil (3) is wound on the winding insulation frame (4). The winding insulation frame (4) includes two symmetrically arranged arc-shaped outer frames (41), the bottom of the arc-shaped outer frame (41) is integrally provided with an arc-shaped inner plate (43), and the two sides of the arc-shaped inner plate (43) are integrally provided with bent baffles (44).

2. The stepper motor winding insulation device according to claim 1, characterized in that: The arc-shaped outer frame (41) has an iron core slot (42) in it. The arc-shaped outer frame (41) is sleeved on the outside of the stator iron core (2), and the stator iron core (2) passes through the iron core slot (42).

3. The stepper motor winding insulation device according to claim 2, characterized in that: The side of the arc-shaped outer frame (41) is attached to the inside of the stator housing (1), the arc-shaped inner plate (43) is attached to the side of the stator core (2), and the bending baffle (44) is located between the two stator cores (2).

4. The stepper motor winding insulation device according to claim 3, characterized in that: The ends of the arc-shaped outer frame (41) are respectively provided with trapezoidal claws (46) and connecting slots (47), and the trapezoidal claws (46) at the ends of the arc-shaped outer frame (41) are engaged in the connecting slots (47).

5. The stepper motor winding insulation device according to claim 4, characterized in that: The arc-shaped outer frame (41) has a limiting slot (45) on the side near the stator housing (1), and a coil partition (5) is provided between the two arc-shaped outer frames (41), and the end of the coil partition (5) is engaged with the limiting slot (45).

6. The stepper motor winding insulation device according to claim 5, characterized in that: The coil partition (5) includes a plug-in horizontal plate (51) with both ends inserted into the limiting slot (45). An insulating vertical plate (52) is integrally provided on the side of the plug-in horizontal plate (51), and the insulating vertical plate (52) is located between the two arc-shaped outer frames (41).

7. The stepper motor winding insulation device according to claim 1, characterized in that: The stator housing (1) has multiple sets of threaded holes (6) arranged in a rectangular array at both ends, with two threaded holes (6) in each set.

Images