CN217522656U

CN217522656U - Electric machine

Info

Publication number: CN217522656U
Application number: CN202221292303.1U
Authority: CN
Inventors: 冈田忠士; 滨地亮辅; 陆强
Original assignee: Nidec Intelligent Research Institute Pinghu Co Ltd
Current assignee: Nidec Intelligent Research Institute Pinghu Co Ltd
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-09-30
Anticipated expiration: 2032-05-27

Abstract

The utility model relates to the technical field of electric machines, a motor is provided, the motor has: a rotating shaft, a rotor, and a stator; a resin housing accommodating the stator and the rotor; a housing cover plate covering one axial end of the resin housing; a bearing that supports the rotating shaft and enables the rotating shaft to rotate; a bearing support portion that holds the bearing; a circuit board disposed in the resin chassis; the stator comprises a stator core, an insulating piece and a coil; the stator core is provided with a plurality of core backs which are uniformly distributed in the circumferential direction and teeth which extend from the core backs along the inner side of the radial direction; the insulator covers at least a part of the stator core, and the coil is wound around the stator core with the insulator interposed therebetween; the radial outer side of the insulating part is provided with a protruding part, and when the coil is wound on the insulating part, part of the coil bypasses the protruding part. The utility model discloses can make coil stable in structure, the coil installation of being convenient for realizes automated production, improves production efficiency.

Description

Electric machine

Technical Field

The utility model relates to the technical field of electric machines, especially, relate to a motor.

Background

An Electric machine (Electric machine) is commonly called a "motor", and refers to an electromagnetic device that converts or transmits Electric energy according to the law of electromagnetic induction. The motor is mainly used for generating driving torque and is used as a power source of electric appliances or various machines.

The motor is provided with insulated winding connection terminals on which the coil needs to be wound manually. Because the operation of the terminal of coiling needs to be carried out manually, it is time-consuming and laborious, degree of automation is not high, and production efficiency is lower.

SUMMERY OF THE UTILITY MODEL

The utility model discloses mainly solve prior art's motor and need through manual on winding the coil to spiral connecting terminal, waste time and energy, production efficiency lower technical problem proposes a motor to make coil structure stable, the coil installation of being convenient for realizes automated production, improves production efficiency.

The utility model provides a motor, motor has:

a rotating shaft extending along a central axis;

a rotor supported by the rotating shaft;

a stator disposed opposite to the rotor;

a resin housing accommodating the stator and the rotor;

a housing cover plate covering one axial end of the resin housing;

a bearing that supports the rotating shaft and enables the rotating shaft to rotate;

a bearing support portion that holds the bearing;

a circuit board disposed in the resin chassis;

the stator comprises a stator core, an insulating piece and a coil;

the stator core is provided with a plurality of core backs which are uniformly distributed in the circumferential direction and teeth which extend from the core backs along the inner side of the radial direction;

the insulator covers at least a part of the stator core, and the coil is wound around the stator core with the insulator interposed therebetween;

the radial outer side of the insulating part is provided with a protruding part, and when the coil is wound on the insulating part, part of the coil bypasses the protruding part.

Preferably, the insulating element has a plurality of insulating submodules distributed in the circumferential direction, which cover the corresponding teeth and the core back.

Preferably, the insulating member has a plurality of protrusions.

Preferably, the protrusion has a retaining structure for preventing the protrusion from being axially disengaged.

Preferably, the insulating sub-module having the protruding portion is provided with a connection terminal.

In the motor provided by the utility model, the insulating part is provided with a plurality of protruding parts, so that the coil end part can be hung, and the coil structure is stable; need not manual winding, the coil installation of being convenient for can realize automated production, improves production efficiency. The plurality of insulating sub-modules with the protruding parts are correspondingly provided with the connecting terminals, so that equipment is convenient to connect and install.

Drawings

Fig. 1 is a schematic structural diagram (resin case side) of a motor provided by the present invention;

fig. 2 is a schematic structural diagram of the motor provided by the present invention (on the housing cover plate side);

fig. 3 is a schematic diagram of the internal structure of the motor provided by the present invention (resin case side);

fig. 4 is a schematic diagram of an internal structure of the motor (on the housing cover plate side) provided by the present invention;

fig. 5 is a schematic structural diagram of a stator core provided by the present invention;

fig. 6 is a schematic view (overall) of an expanded structure of the insulating member provided by the present invention;

fig. 7 is a schematic view (partially enlarged) of an expanded structure of the insulating member provided by the present invention;

fig. 8 is a schematic view (partially enlarged two) of an expanded structure of the insulating member provided by the present invention.

Reference numerals are as follows: 1. a resin case; 2. a rotating shaft; 3. a stator core; 4. an insulating member; 5. a coil; 6. a case cover plate; 7. a circuit board; 8. a connection terminal; 301. the back of the iron core; 302. teeth; 401. a protrusion.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present invention are shown in the drawings.

As shown in fig. 1-4, an embodiment of the present invention provides a motor, which has: a rotary shaft 2 extending along the center axis; a rotor supported by the rotating shaft 2; a stator disposed opposite to the rotor; a resin case 1 for accommodating the stator and the rotor; a casing cover plate 6 covering one axial end of the resin casing 1; a bearing that supports the rotary shaft 2 and enables the rotary shaft 2 to rotate; a bearing support portion that holds the bearing; a circuit board 7 disposed in the resin chassis; wherein the bearings are mounted on the rotating shaft 2 through bearing supports.

The stator includes a stator core 3, an insulator 4, and a coil 5. As shown in fig. 5, the stator core 3 includes a plurality of core backs 301 uniformly distributed in the circumferential direction, and teeth 302 extending radially inward from the core backs 301.

The insulator 4 covers at least a part of the stator core 3, and the coil 5 is wound around the stator core 3 with the insulator 4 interposed therebetween. As shown in fig. 6 to 8, a protrusion 401 is provided on the radially outer side of the insulating member 4, and when the coil 5 is wound around the insulating member 4, a part of the coil 5 bypasses the protrusion 401.

The insulating element 4 has a plurality of insulating submodules distributed in the circumferential direction, which cover the corresponding teeth 302 and core back 301. In the present embodiment, the insulating member 4 refers to a ring of insulating member as a whole. The insulator module is a component individually covering the insulation on the individual teeth 302 of the upper stator core 3.

The insulating member 4 has a plurality of projections 401. The protrusion 401 has a retaining structure for preventing the coil 5 from being disengaged in the axial direction. The insulating member 4 has a plurality of projections 401 as a whole; from the insulating submodule piece perspective, the utility model discloses in a plurality of insulating submodule pieces set up protruding portion 401, protruding portion 401 is not established to other insulator modules. Specifically, three insulator sub-modules are used to provide the tabs 401. Further, the insulating sub-module having the protrusion 401 is provided with the connection terminal 8. Correspondingly, three insulator modules having the protrusions 401 are provided with the connection terminals 8. The connection terminal 8 has one end connected to the coil 5 and the other end connected to the circuit board 7 and extending out of the circuit board 7.

The utility model discloses an insulating part 4 has a plurality of protruding portions 401, can make 5 tip of coil hang, makes coil structure stable, and the installation of being convenient for can realize automated production, improves production efficiency. The plurality of insulator modules having the protruding portions 401 are provided with the connection terminals 8 corresponding thereto, which facilitates connection and installation of equipment.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or some or all of the technical features may be equivalently replaced, without substantially departing from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electric machine having:

a rotating shaft (2) extending along a central axis;

a rotor supported by the rotating shaft (2);

a stator disposed opposite to the rotor;

a resin case (1) for accommodating the stator and the rotor;

a housing cover plate (6) covering one axial end of the resin housing (1);

a bearing that supports the rotating shaft (2) and enables the rotating shaft (2) to rotate;

a bearing support portion that holds the bearing;

a circuit board (7) disposed in the resin case;

the stator comprises a stator core (3), an insulator (4) and a coil (5);

the method is characterized in that:

the stator core (3) is provided with a plurality of core backs (301) which are uniformly distributed in the circumferential direction, and teeth (302) which extend inwards from the core backs (301) in the radial direction;

the insulator (4) covers at least a part of the stator core (3), and the coil (5) is wound around the stator core (3) with the insulator (4) therebetween;

the radial outer side of the insulating piece (4) is provided with a protruding portion (401), and when the coil (5) is wound on the insulating piece (4), part of the coil (5) bypasses the protruding portion (401).

2. An electric machine according to claim 1, characterized in that the insulation (4) has a plurality of insulation submodules distributed in the circumferential direction, which cover the corresponding teeth (302) and core back (301).

3. An electric machine according to claim 2, characterized in that the insulator (4) has a plurality of protrusions (401).

4. The electric machine according to claim 3, characterized in that the protrusion (401) has a retaining structure preventing unhooking in the axial direction.

5. An electric machine according to any of claims 1-4, characterized in that the insulating submodule with the protruding parts (401) is provided with connection terminals (8).