CN217427892U

CN217427892U - Motor comprising resolver

Info

Publication number: CN217427892U
Application number: CN202220192543.8U
Authority: CN
Inventors: 刘建华
Original assignee: CHONGQING YONG FA INDUSTRIES Ltd
Current assignee: CHONGQING YONG FA INDUSTRIES Ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-09-13
Anticipated expiration: 2032-01-24

Abstract

The utility model discloses a motor containing a resolver, which comprises a shell, wherein a rotating shaft is arranged in the shell in a penetrating way, a rotor core is arranged on the rotating shaft, a stator winding is arranged outside the rotor core, the rotor core and the stator winding are arranged in the shell, the front end of the shell is provided with a front end cover, the rear end of the shell is provided with a rear end cover, a bearing is arranged inside the rear end cover, the bearing is arranged and sleeved on the rotating shaft, the outer part of the rear end cover is provided with an installation cavity, the inside of the installation cavity is fixedly provided with the resolver, the resolver is sleeved on the rotating shaft, the rear end cover is also provided with an oil sealing plate, the side edge of the rear end cover is also provided with a fan, and the fan is connected on the rotating shaft. Thereby prolonging the service life of the motor.

Description

Motor comprising resolver

Technical Field

The utility model relates to an electrical equipment technical field specifically is a motor that contains resolver.

Background

The motor mainly functions to convert electric energy into mechanical energy, and the permanent magnet synchronous motor can be rapidly popularized and applied along with the rapid development of power electronic technology, microelectronic technology, novel motor control theory and rare earth permanent magnet materials. Compared with the traditional electrically excited synchronous motor, the permanent magnet synchronous motor has the advantages of less loss, high efficiency and obvious electricity-saving effect. The permanent magnet synchronous motor provides excitation by the permanent magnet, so that the structure of the motor is simpler, the processing and assembling cost is reduced, a collecting ring and an electric brush which are easy to cause problems are omitted, and the running reliability of the motor is improved;

however, in the current general middle and small permanent magnet synchronous motors on the market, the design is simple natural air cooling, the position sensor adopts the most common Hall sensor to be arranged on the motor shaft, the motor has no heat dissipation device, and the service life of the motor is easily influenced by the heat generated by the motor.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a motor including a resolver to solve the problems in the background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a motor that contains ware soon, includes the casing, wear to be equipped with the axis of rotation in the casing, be equipped with rotor core in the axis of rotation, rotor core still is equipped with stator winding outward, rotor core with stator winding all sets up in the casing, the casing front end is equipped with the front end housing, the casing rear end is equipped with the rear end cap, the inside bearing that is equipped with of rear end cap, the bearing sets up the cover and establishes in the axis of rotation, the rear end cap outside is equipped with the installation cavity, the fixed ware that becomes soon that is equipped with in the installation cavity, just it establishes to become soon the ware cover in the axis of rotation, still be equipped with the oil blanket on the rear end cap, the rear end cap side still is equipped with the fan, the fan is connected in the axis of rotation.

Preferably, be equipped with sealed chamber on the outer terminal surface of rear end cap, the installation cavity is located inside the sealed chamber, just the installation cavity with sealed chamber intercommunication, be equipped with the annular fixed slot on the sealed chamber terminal surface, be equipped with ring seal board in the sealed chamber, the closing plate bottom is equipped with the limiting plate, the limiting plate sets up in the fixed slot, the closing plate middle part is equipped with sealed hole, sealed hole with the axis of rotation cooperation.

Preferably, the inner wall of the sealing hole is provided with a sealing ring.

Preferably, the inner wall of the fixing groove is provided with a limiting hole, the bottom of the limiting hole is connected with one end of the spring, the other end of the spring is provided with a limiting ball, the limiting plate is provided with a fixing hole, and the fixing hole is matched with the limiting ball.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a brand-new resolver is as speed recognition device, the vacant certain space that has been put out, radiator fan has been installed on the motor shaft, this self radiating effect with regard to greatly increased the motor, PMSM high temperature demagnetization phenomenon has effectively been avoided, and then motor life has been promoted, be equipped with the closing plate in the resolver outside moreover, can prevent effectively that the dust from getting into inside the resolver, influence the life of resolver, and the closing plate adopts the detachable structure, convenient clearance, repair and change.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic view of the inside of the fixing groove of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but 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 thus, should not be construed as limiting the present invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, welded, directly connected, connected through an intermediate medium, or connected to the inside of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1: an electrical machine comprising a resolver, comprising a casing 1, as shown in figure 2: a rotating shaft 2 penetrates through the shell 1, a rotor core 3 is arranged on the rotating shaft 2, a stator winding 4 is further arranged outside the rotor core 3, the rotor core 3 and the stator winding 4 are both arranged in the shell 1, a front end cover 6 is arranged at the front end of the shell 1, a rear end cover 5 is arranged at the rear end of the shell 1, a bearing 7 is arranged inside the rear end cover 5, the bearing 7 is arranged and sleeved on the rotating shaft 2, an installation cavity 8 is arranged outside the rear end cover 5, a rotary device 9 is fixedly arranged in the installation cavity 8, the rotary device 9 is sleeved on the rotating shaft 2, an oil sealing plate 10 is further arranged on the rear end cover 5, a fan 11 is further arranged on the side edge of the rear end cover 5, the fan 11 is connected onto the rotating shaft 2, a sealing cavity 12 is arranged on the outer end face of the rear end cover 5, and the installation cavity 8 is located inside the sealing cavity 12, and the installation cavity 8 is communicated with the sealing cavity 12, as shown in fig. 3: be equipped with annular fixed slot 13 on the sealed 12 terminal surfaces in chamber, be equipped with annular sealing plate 14 in the sealed chamber 12, closing plate 14 bottom is equipped with limiting plate 15, limiting plate 15 sets up in the fixed slot 13, closing plate 14 middle part is equipped with sealed hole 16, sealed hole 16 with the cooperation of axis of rotation 2, the 16 inner walls of sealed hole are equipped with the sealing washer, fixed slot 13 inner wall is equipped with spacing hole 17, spacing hole 17 bottom is connected with spring 18 one end, the spring 18 other end is equipped with spacing ball 19, be equipped with fixed orifices 20 on the limiting plate 15, fixed orifices 20 with spacing ball 19 cooperation.

Claims

1. An electric machine comprising a resolver, comprising a casing (1), characterized in that: a rotating shaft (2) is arranged in the shell (1) in a penetrating manner, a rotor core (3) is arranged on the rotating shaft (2), a stator winding (4) is further arranged outside the rotor core (3), the rotor core (3) and the stator winding (4) are arranged in the shell (1), a front end cover (6) is arranged at the front end of the shell (1), a rear end cover (5) is arranged at the rear end of the shell (1), a bearing (7) is arranged inside the rear end cover (5), the bearing (7) is arranged and sleeved on the rotating shaft (2), an installation cavity (8) is arranged outside the rear end cover (5), a rotary transformer (9) is fixedly arranged in the installation cavity (8), the rotary transformer (9) is sleeved on the rotating shaft (2), an oil sealing plate (10) is further arranged on the rear end cover (5), and a fan (11) is further arranged on the side edge of the rear end cover (5), the fan (11) is connected to the rotating shaft (2).

2. A machine comprising a resolver according to claim 1, wherein: be equipped with sealed chamber (12) on rear end cap (5) outer terminal surface, installation cavity (8) are located inside sealed chamber (12), just installation cavity (8) with sealed chamber (12) intercommunication, be equipped with annular fixed slot (13) on sealed chamber (12) terminal surface, be equipped with annular seal board (14) in sealed chamber (12), closing board (14) bottom is equipped with limiting plate (15), limiting plate (15) set up in fixed slot (13), closing board (14) middle part is equipped with sealed hole (16), sealed hole (16) with axis of rotation (2) cooperation.

3. A machine incorporating a resolver according to claim 2, wherein: and a sealing ring is arranged on the inner wall of the sealing hole (16).

4. A machine comprising a resolver according to claim 3, wherein: fixed slot (13) inner wall is equipped with spacing hole (17), spacing hole (17) bottom is connected with spring (18) one end, the spring (18) other end is equipped with spacing ball (19), be equipped with fixed orifices (20) on limiting plate (15), fixed orifices (20) with spacing ball (19) cooperation.