CN217522655U

CN217522655U - Electric machine

Info

Publication number: CN217522655U
Application number: CN202221291376.9U
Authority: CN
Inventors: 冈田忠士; 木内佑树; 小竹弘伦; 石小金
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: the motor comprises a rotating shaft, a rotor, a stator, a resin casing and a casing cover plate; the stator has a coil covered by the resin case and a connection terminal protruding from an axial direction of the resin case; the motor is also provided with a connecting plate arranged in the resin shell; a plurality of round terminals are arranged on the connecting plate and electrically connected with a connector arranged on the resin case; the round terminal is provided with a round connecting part which is provided with a hole part, and the connecting terminal passes through the hole part to be electrically connected with the round terminal; the connecting plate is provided with a plurality of circular terminal embedding parts, and the circular terminals are arranged in the circular terminal embedding parts; the outer end of the round terminal embedding part is provided with a first fixing part which fixes the round terminal in the extending direction of the round terminal. The utility model discloses can prevent that circle terminal position when connecting terminal installs from deviating from, make the installation of circle terminal stable.

Description

Electrical 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 the connecting terminal, and when the motor is assembled, the connecting terminal needs to pass through the hole part of the round terminal, and the round terminal is easy to deviate from the original position when passing through the round terminal from the lower direction. If the round terminal deviates from the position, rework operation is added in the assembly process, which affects the production efficiency of the motor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses mainly solve prior art's motor, round terminal is skew easily when connecting terminal passes the hole portion of round terminal, leads to the technical problem of doing over again, provides a motor to prevent round terminal position skew when connecting terminal installs, make the round terminal installation stable.

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 corresponding to the rotor;

a resin housing accommodating the stator and the rotor;

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

the stator has a coil covered by the resin case and connection terminals protruding from an axial direction of the resin case;

the motor also has a connecting plate disposed within the resin case;

a plurality of round terminals are arranged on the connecting plate and electrically connected with a connector arranged on the resin case;

the round terminal has a round connecting portion having a hole portion through which the connecting terminal is electrically connected to the round terminal;

the connecting plate is provided with a plurality of round terminal embedding parts, and round terminals are arranged in the round terminal embedding parts; the outer end of the round terminal embedding part is provided with a first fixing part, and the first fixing part fixes the round terminal in the extending direction of the round terminal.

Preferably, second fixing portions are respectively provided on both sides of the round terminal fitting portion, and the second fixing portions fix the round terminals on both sides of the round terminals.

Preferably, the resin machine shell is provided with a positioning column, and the connecting plate is fixed through the positioning column.

Preferably, the number of the connection terminals is 3, and the 3 connection terminals are distributed along the circumferential direction of the resin chassis.

Preferably, the connector is fixed to an outer peripheral side of one end in an axial direction of the resin case, and the connector is electrically connected to the round terminal.

Preferably, the chassis cover is fixed to the resin chassis.

The utility model provides a pair of motor sets up first fixed part, can be with the terminal portion embedding of circle terminal to circle terminal gomphosis portion, even from the lower side in-direction contact circle terminal also can not break away from original position, the circle terminal leaves original position when can preventing to install, makes the installation of circle terminal stable. The second fixing portion is arranged, so that the round terminal can be further prevented from leaving the original position during installation, and the round terminal is stably installed.

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 round terminal provided by the present invention;

fig. 6 is a schematic structural diagram of a connection plate provided by the present invention;

fig. 7 is a schematic view of the fitting between the round terminal and the connecting plate according to the present invention.

Reference numerals: 1. a resin case; 2. a rotating shaft; 3. a case cover plate; 4. a connecting plate; 5. a round terminal; 6. a connector; 7. a connection terminal; 8. a positioning column; 9. a coil; 10. a stator core; 401. a round terminal fitting portion; 402. a first fixed part; 403. a second fixed part; 501. a circular connecting portion; 502. a hole portion.

Detailed Description

In order to make the technical problems, the technical solutions adopted and the technical effects achieved by the present invention clearer, the following description is made in conjunction with the accompanying drawings and embodiments for further details of the present invention. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting 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 corresponding to the rotor; a resin case 1 for accommodating the stator and the rotor; a housing cover plate 3 covering one axial end of the resin housing 1; the stator has a coil 9 and a connection terminal 7, the coil 9 is covered by the resin case 1, the connection terminal 7 protrudes from the resin case 1 in the axial direction, and the connection terminal 7 is electrically connected to the coil 9.

In the present embodiment, the rotor is mounted on the rotating shaft 2, and the stator is mounted outside the rotor. The stator comprises a stator core 10, the stator core 10 is provided with a plurality of teeth distributed in the circumferential direction, the teeth are positioned in the radial direction of the stator core 10, and the coils 9 are wound on the teeth through insulating sleeves. The stator may be injection molded in the resin case 1.

The motor also has a connecting plate 4 disposed inside the resin case 1; a plurality of round terminals 5 are arranged on the connecting plate 4, and the round terminals 5 are electrically connected with a connector 6 arranged on the resin case 1; specifically, the number of the round terminals 5 is three.

As shown in fig. 5 and 7, the round terminal 5 has a round connecting portion 501, the round connecting portion 501 has a hole portion 502, the connecting terminal 7 is electrically connected to the round terminal 5 through the hole portion 502, and in particular, the connecting terminal 7 is welded to the round terminal 5; the number of the connection terminals 7 is 3, and 3 connection terminals 7 are distributed along the circumferential direction of the resin case 1.

As shown in fig. 6 and 7, the connection plate 4 has a plurality of round terminal fitting portions 401, and the round terminals 5 are placed in the round terminal fitting portions 401; a first fixing portion 402 is provided at an outer end of the round terminal fitting portion 401, and the round terminal 5 is fixed to the first fixing portion 402 in an extending direction of the round terminal 5.

Second fixing portions 403 are respectively provided on both sides of the round terminal fitting portion 401, and the round terminals 5 are fixed to both sides of the round terminals 5 by the second fixing portions 403.

In addition, the resin machine shell 1 is provided with a positioning column 8, and the connecting plate 4 is fixed through the positioning column 8, so that the connecting plate 4 is stably installed. The connector 6 is fixed to an outer peripheral side of one end in the axial direction of the resin housing 1, and the connector 6 is electrically connected to the round terminal 5. The case cover plate 3 is fixed to the resin case 1 by press-fitting.

The utility model discloses set up first fixed part 402, can imbed the terminal portion of circle terminal 5 to circle terminal gomphosis portion 401, even contact circle terminal also can not break away from original position in the follow downside, circle terminal leaves original position when can preventing to install, makes circle terminal 5 installation stable. The second fixing portion 403 is provided to further prevent the round terminal from being separated from the original position during mounting, and to stabilize the mounting of the round terminal 5.

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, the electric machine having:

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

a rotor supported by the rotating shaft (2);

a stator disposed corresponding to the rotor;

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

a casing cover plate (3) covering one axial end of the resin casing (1);

the stator has a coil (9) and a connection terminal (7), the coil (9) is covered by the resin case (1), and the connection terminal (7) protrudes from the axial direction of the resin case (1);

the method is characterized in that:

the motor is also provided with a connecting plate (4) arranged in the resin casing (1);

a plurality of round terminals (5) are arranged on the connecting plate (4), and the round terminals (5) are electrically connected with a connector (6) arranged on the resin case (1);

the round terminal (5) is provided with a round connecting part (501), the round connecting part (501) is provided with a hole part (502), and the connecting terminal (7) is electrically connected with the round terminal (5) through the hole part (502);

the connecting plate (4) is provided with a plurality of round terminal embedding parts (401), and the round terminals (5) are arranged in the round terminal embedding parts (401); the outer end of the round terminal embedding part (401) is provided with a first fixing part (402), and the first fixing part (402) fixes the round terminal (5) in the extending direction of the round terminal (5).

2. The motor according to claim 1, wherein second fixing portions (403) are provided on both sides of the round terminal fitting portion (401), respectively, and the second fixing portions (403) fix the round terminals (5) on both sides of the round terminals (5).

3. The machine according to claim 2, characterized in that the resin housing (1) is provided with positioning posts (8), and the connection plate (4) is fixed by the positioning posts (8).

4. The machine according to claim 1 or 3, characterized in that the number of the connection terminals (7) is 3, and 3 connection terminals (7) are distributed in the circumferential direction of the resin case (1).

5. The electric machine according to claim 2, wherein the connector (6) is fixed to an outer peripheral side of one axial end of the resin case (1), and the connector (6) is electrically connected to the round terminal (5).

6. The machine according to claim 1 or 5, characterized in that the housing cover plate (3) is fixed to the resin housing (1).