CN206481138U - A motor insulation structure - Google Patents

Abstract

The utility model discloses a motor insulation structure, which comprises an end cover, a stator component, a rotor component and a rotating shaft, wherein the end cover is provided with a bearing chamber, a bearing is arranged in the bearing chamber, the rotating shaft is arranged on the rotor component, the stator component comprises a stator core, end insulation and a coil winding, the coil winding is wound on the end insulation surface of the stator core, the stator component is nested outside the rotor component, two end covers are arranged together to form an accommodating chamber, the rotor component and the stator component are arranged in the accommodating chamber, a gap is reserved between the top of the coil winding and the inner top surface of the end cover, an insulation end plate is arranged in the gap, a plurality of bosses are raised on the edge of the insulation end plate, so the bosses are tightly pressed on the inner wall of the end cover, thereby the insulation end plate is firmly fixed and is not easy to loosen, the structure is simple.

Description

A motor insulation structure

Technical field:

The utility model relates to a motor insulation structure.

Background technique:

The existing motor includes an end cover, a stator assembly, a rotor assembly and a rotating shaft. The rotating shaft is installed on the rotor assembly. The stator assembly includes a stator core, end insulation and coil windings. Insulation surface, the stator assembly is nested outside the rotor assembly, a cavity is opened in the middle of the end cover, the rotor assembly and stator assembly are installed in the cavity, and an insulating end plate is installed between the coil winding and the end cover. In order to put the board into the end cap conveniently, the outer diameter of the insulating end plate will be smaller than the inner diameter of the end cap. Since the outer diameter of the insulating end plate will be smaller than the inner diameter of the end cap, the insulating end plate is loose in the end cap and assembled in the flip end cap The insulating end plate is very easy to drop or skew when the motor loses the insulation function.

Invention content:

The purpose of this utility model is to provide an insulating structure to solve the technical problem in the prior art that the insulating end plate is loose in the end cover, and the insulating end plate is very easy to fall or skew when the motor is assembled when the end cover is turned over. .

The purpose of this utility model is achieved through the following technical solutions.

A motor insulation structure, including an end cover, a stator assembly, a rotor assembly and a rotating shaft, the end cover is provided with a bearing chamber, bearings are installed in the bearing chamber, the rotating shaft is installed on the rotor assembly, the stator assembly includes a stator core, an end Insulation and coil winding, the coil winding is wound on the end insulation surface of the stator core, the stator assembly is nested outside the rotor assembly, the two end covers are installed together to form a cavity in the middle, the rotor assembly and the stator assembly are installed in the cavity Inside, there is a gap between the top of the coil winding and the inner top surface of the end cover, and an insulating end plate is installed in the gap. Several bosses protrude from the edge of the insulating end plate, and the outer diameter of the boss is smaller than that of the end cover. The inner diameter should be larger.

The insulating end plate mentioned above is an annular ring, and a through hole is opened in the middle of the annular ring, and the insulating end plate is sleeved on the periphery of the bearing chamber through the through hole.

The bosses mentioned above are arranged radially.

The bosses mentioned above are evenly distributed and correspondingly arranged.

Compared with the prior art, the utility model has the following effects:

1) The utility model includes an end cover, a stator assembly, a rotor assembly and a rotating shaft. The end cover is provided with a bearing chamber, and a bearing is installed in the bearing chamber. The rotating shaft is installed on the rotor assembly. The stator assembly includes a stator core, an end insulation And the coil winding, the coil winding is wound on the end insulation surface of the stator core, the stator assembly is nested outside the rotor assembly, the two end covers are installed together to form a cavity in the middle, and the rotor assembly and the stator assembly are installed inside the cavity , there is a gap between the top of the coil winding and the inner top surface of the end cover, and an insulating end plate is installed in the gap, and several bosses protrude from the edge of the insulating end plate, and the outer diameter of the boss is smaller than the inner diameter of the end cover It should be large, so the boss is tightly pressed against the inner wall of the end cover, so that the insulating end plate is firmly fixed and not easy to loosen. Even when the end cover is assembled, it can effectively prevent the insulating end plate from falling or skewing due to loosening. The structure is simple .

Description of drawings:

Fig. 1 is the perspective view of the motor of the present utility model;

Fig. 2 is the three-dimensional exploded view of the motor of the present utility model;

Fig. 3 is the front view of the motor of the present utility model;

Fig. 4 is a sectional view of A-A in Fig. 3;

Fig. 5 is a front view of the end cover and insulating end plate of the present invention;

Fig. 6 is a sectional view of BB in Fig. 5 .

detailed description:

The utility model will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.

Embodiment 1: As shown in Figures 1 to 6, this embodiment is a motor insulation structure, including an end cover 1, a stator assembly 2, a rotor assembly 3 and a rotating shaft 4, and the end cover 1 is provided with a bearing chamber 13, A bearing 14 is installed in the bearing chamber 13, the rotating shaft 4 is supported on the bearing 14, the rotating shaft 4 is installed on the rotor assembly 3, the stator assembly 2 includes a stator core 21, end insulation 22 and coil winding 23, and the coil winding 23 is wound on On the surface of the end insulation 22 on the stator core 21, the stator assembly 2 is nested outside the rotor assembly 3, and the two end covers 1 are installed together to form a cavity 11 in the middle, and the rotor assembly 3 and the stator assembly 2 are installed in the cavity 11 , there is a gap 12 between the top of the coil winding 23 and the inner top surface of the end cover 1, and an insulating end plate 5 is installed in the gap 12, and several bosses 51 protrude from the edge of the insulating end plate 5, and the bosses 51 The outer diameter of the end cover 1 is larger than the inner diameter of the end cover 1, so the boss 51 is tightly pressed against the inner wall of the end cover 1, so that the insulating end plate 5 is firmly fixed and not easy to loosen, even when the end cover 1 is assembled. The plate 5 is loose and causes phenomena such as falling or skewing, and the structure is simple.

The insulating end plate 5 is an annular ring, and a through hole 52 is opened in the middle of the annular ring, and the insulating end plate 5 is sleeved on the periphery of the bearing chamber 13 through the through hole 52 .

The boss 51 is arranged radially.

The bosses 51 are evenly distributed and correspondingly arranged.

The above embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention are equivalent All replacement methods are included within the protection scope of the present invention.

Claims (4)

1. A motor insulation structure, comprising an end cover (1), a stator assembly (2), a rotor assembly (3) and a rotating shaft (4), the end cover (1) is provided with a bearing chamber (13), the bearing chamber ( Bearing (14) is installed in 13), and the rotating shaft (4) is supported on the bearing (14), and the rotating shaft (4) is installed on the rotor assembly (3), and the stator assembly (2) includes the stator core (21), the end Insulation (22) and coil winding (23), the coil winding (23) is wound on the surface of the end insulation (22) on the stator core (21), the stator assembly (2) is nested outside the rotor assembly (3), The two end covers (1) are installed together to form a cavity (11), the rotor assembly (3) and the stator assembly (2) are installed in the cavity (11), and the top of the coil winding (23) is connected to the end cover (1 There is a gap (12) between the inner top surfaces of ), and an insulating end plate (5) is installed in the gap (12), and it is characterized in that: several bosses (51) protrude from the edge of the insulating end plate (5) ), the outer diameter of the boss (51) is larger than the inner diameter of the end cap (1). 2. A motor insulation structure according to claim 1, characterized in that: the insulating end plate (5) is an annular ring, and a through hole (52) is opened in the middle of the annular ring, and the insulating end plate (5) passes through The through hole (52) is sleeved on the periphery of the bearing chamber (13). 3. The motor insulation structure according to claim 1, characterized in that: the bosses (51) are arranged radially. 4. A motor insulation structure according to claim 1, 2 or 3, characterized in that: said bosses (51) are evenly distributed and correspondingly arranged.