Motor

Abstract

The motor comprises a stator assembly, and the stator assembly comprises a stator main body and a stator housing sleeving the stator main body. The rotor assembly comprises a permanent magnet and a rotating shaft; the terminal block comprises a socket and a wire protection box arranged above the socket; the motor shell is arranged on the outer side of the terminal block; the rotor assembly is arranged in the stator assembly, one end of the stator assembly is connected with the terminal block, and the motor shell is connected with one end of the stator assembly and covers the whole terminal block; according to the motor provided by the utility model, the outer side of the intermediate plate group is integrally molded into the plastic package through injection molding, and then the intermediate plate group and the stator casing are assembled into the stator assembly, so that the production complexity is reduced; the pins and the socket main body are integrally connected through injection molding, so that the connection between the pins and the socket main body is more stable, and the pins are effectively prevented from falling off in the use process; and the service life of the motor is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor. Background Art

[0002] Most of the existing stator assemblies of motors are of a split structure. Two intermediate plates need to be spliced and assembled to obtain the stator assembly. However, the production efficiency of manual assembly and splicing is relatively low, and the qualified rate is also low, resulting in a high production cost. And most of the pins of the existing terminal block sockets are assembled by setting grooves on the socket and then inserting the pins into the grooves one by one. However, in the subsequent use process, the pins are very easy to fall off, resulting in poor contact, thus affecting the use of the motor. At the same time, this assembly method takes a long time and affects the production efficiency. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is: In order to solve the problem of short service life of motors in the prior art, the utility model provides a motor.

[0004] The technical solution adopted by the utility model to solve its technical problem is: A motor, including a stator assembly, the stator assembly includes a stator body and a stator housing sleeved outside the stator body;

[0005] A rotor assembly, the rotor assembly includes a permanent magnet and a rotating shaft;

[0006] A terminal block, the terminal block includes a socket and a wire protection box arranged above the socket;

[0007] A motor housing, the motor housing is arranged outside the terminal block;

[0008] The rotor assembly is arranged inside the stator assembly, one end of the stator assembly is connected to the terminal block, and the motor housing is connected to one end of the stator assembly and covers the entire terminal block.

[0009] Further, the stator body is composed of a bearing and at least two groups of intermediate plate groups axially arranged below the bearing; the bearing and the intermediate plate groups are connected by plastic encapsulation; the intermediate plate group is composed of a first intermediate plate and a second intermediate plate arranged opposite to each other up and down, and a coil groove for winding is formed between the first intermediate plate and the second intermediate plate.

[0010] Further, both the first intermediate plate and the second intermediate plate are composed of a plate surface and a plurality of trapezoidal plates arranged on the plate surface; the first intermediate plate is inverted above the second intermediate plate, and the trapezoidal plates of the first intermediate plate and the second intermediate plate are arranged in a cross manner.

[0011] Further, a plastic seal is integrally injection-molded between the bearing and the middle plate group. A convex portion is provided at one end of the plastic seal away from the bearing, and a terminal block is provided at the rear of the plastic seal. The stator housing is of a cylindrical structure, and a through hole is provided at the top of the stator housing. The diameter of the through hole is matched with the outer diameter of the bearing.

[0012] Further, the permanent magnet is arranged in the middle plate group. The permanent magnet is sleeved on one end of the rotating shaft. One end of the rotating shaft away from the permanent magnet is connected to the bearing and passes through the bearing, and one end of the rotating shaft close to the permanent magnet is connected to the terminal block.

[0013] Further, the socket includes a socket body and pins arranged in the socket body. The socket body is an injection-molded part, and the pins are arranged in parallel in the socket body and integrally injection-molded with the socket body.

[0014] Further, a rectangular groove for clamping with the wire protection box is provided at the rear of the socket body. The rectangular groove is matched with the lower end of the wire protection box. A groove is provided at the front of the socket body, and the groove is matched with the convex portion of the plastic seal for connecting the stator assembly and the terminal block.

[0015] Further, the lateral part of the motor housing is of a barrel-shaped structure and wraps around the outside of one end of the stator housing close to the terminal block. The longitudinal part of the motor housing wraps around the outside of the terminal block and forms an opening at the lower part. Providing the opening can not only facilitate the installation of the motor but also protect the pins.

[0016] Advantages of the present utility model:

[0017] For the motor of the present utility model, a plastic seal is integrally injection-molded on the outside of the intermediate plate group and then assembled with the stator housing to form a stator assembly, reducing the complexity of production. And the pins and the socket body are integrally connected by injection molding, making the connection between the pins and the socket body more stable, effectively preventing the pins from falling off during use, improving production efficiency, saving production costs, and making the motor have a longer service life. Description of the drawings

[0018] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the motor according to the preferred embodiment of the present utility model;

[0020] Figure 2 It is a schematic diagram of the stator assembly according to the preferred embodiment of the present utility model;

[0021] Figure 3 It is a schematic diagram of the stator body according to the preferred embodiment of the present utility model;

[0022] Figure 4 Schematic diagram of the middle plate group according to the preferred embodiment of the present utility model;

[0023] Figure 5 Schematic diagram of the rotor assembly according to the preferred embodiment of the present utility model;

[0024] Figure 6 Schematic diagram of the terminal block according to the preferred embodiment of the present utility model;

[0025] Figure 7 Schematic diagram of the socket according to the preferred embodiment of the present utility model;

[0026] In the figure, 1, stator assembly, 1-1, stator main body, 1-2, stator housing, 2, rotor assembly, 2-1, permanent magnet, 2-2, rotating shaft, 3, terminal block, 3-1, socket, 3-2, wire protection box, 4, motor housing, 5, bearing, 6, middle plate group, 6-1, first middle plate, 6-2, second middle plate, 6-3, coil slot, 6-4, plate surface, 6-5, trapezoidal plate, 7, plastic encapsulation, 8, protruding part, 9, through hole, 10, socket main body, 11, pin, 12, rectangular slot, 13, groove, 14, opening part. Detailed implementation manners

[0027] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "horizontal", "top", "inner", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] Such as Figure 1-7As shown in the figure, a motor includes a stator assembly 1, where the stator assembly 1 includes a stator body 1-1 and a stator housing 1-2 sleeved outside the stator body 1-1; a rotor assembly 2, where the rotor assembly 2 includes a permanent magnet 2-1 and a rotating shaft 2-2; a terminal block 3, where the terminal block 3 includes a socket 3-1 and a wire protection box 3-2 arranged above the socket 3-1; a motor housing 4, where the motor housing 4 is arranged outside the terminal block 3; the rotor assembly 2 is arranged inside the stator assembly 1, one end of the stator assembly 1 is connected to the terminal block 3, and the motor housing 4 is connected to one end of the stator assembly 1 and covers the entire terminal block 3 outside.

[0031] The stator body 1-1 is composed of a bearing 5 and at least two groups of middle pole plate groups 6 axially arranged below the bearing 5; the bearing 5 and the middle pole plate groups 6 are connected by a plastic seal 7; the middle pole plate groups 6 are composed of a first middle pole plate 6-1 and a second middle pole plate 6-2 arranged opposite to each other up and down, and a coil groove 6-3 for winding is formed between the first middle pole plate 6-1 and the second middle pole plate 6-2. Both the first middle pole plate 6-1 and the second middle pole plate 6-2 are composed of a plate surface 6-4 and a plurality of trapezoidal plates 6-5 arranged on the plate surface 6-4; the first middle pole plate 6-1 is inverted above the second middle pole plate 6-2, and the trapezoidal plates 6-5 of the first middle pole plate 6-1 and the second middle pole plate 6-2 are arranged in a cross manner.

[0032] The plastic seal 7 is integrally injection-molded between the bearing 5 and the middle pole plate groups 6. A convex portion 8 is provided at one end of the plastic seal 7 away from the bearing 5, and a wiring seat is provided at the rear of the plastic seal 7; the stator housing 1-2 is of a cylindrical structure, and a through hole 9 is provided at the top of the stator housing 1-2, and the aperture of the through hole 9 is matched with the outer diameter of the bearing 5. The permanent magnet 2-1 is arranged inside the middle pole plate groups 6, the permanent magnet 2-1 is sleeved on one end of the rotating shaft 2-2, the end of the rotating shaft 2-2 away from the permanent magnet 2-1 is connected to the bearing 5 and passes through the bearing 5, and the end of the rotating shaft 2-2 close to the permanent magnet 2-1 is connected to the terminal block 3.

[0033] The socket 3-1 includes a socket body 10 and pins 11 disposed within the socket body 10; the socket body 10 is an injection-molded part, and the pins 11 are arranged in parallel within the socket body 10 and integrally injection-molded with the socket body 10. A rectangular groove 12 for snap-fitting with the wire protection box 3-2 is provided at the rear of the socket body 10, and the rectangular groove 12 is adapted to the lower end of the wire protection box 3-2; a groove 13 is provided at the front of the socket body 10, and the groove 13 is adapted to the protruding portion 8 of the plastic seal 7 for connecting the stator assembly 1 to the terminal block 3. The lateral portion of the motor housing 4 is a barrel-shaped structure that wraps around the outer side of one end of the stator housing 1-2 close to the terminal block 3, and the longitudinal portion of the motor housing 4 wraps around the outer side of the terminal block 3 and forms an opening 14 below; providing the opening 14 can facilitate the installation of the motor and protect the pins 11 at the same time.

[0034] During use, the pins 11 are arranged in parallel and integrally formed with the socket body 10 by injection molding to obtain the socket 3-1. Then, the wire protection box 3-2 is snap-fitted with the rectangular groove 12 at the rear of the socket body 10 to obtain the terminal block; two intermediate plates are placed opposite to each other vertically to form an intermediate plate group 6. The two groups of intermediate plate groups 6 are sleeved outside the permanent magnet 2-1, and the bearing 5 is placed above the intermediate plate group through the rotating shaft 2-2. At this time, injection molding is performed on its periphery to integrally form a plastic seal 7 on its periphery; thus, the assembled stator body 1-1 and rotor assembly 2 can be obtained. Then, the rotating shaft 2-2 is passed through the through hole 9 of the stator housing 1-2, so that the stator housing 1-2 covers the outside of the stator body 1-1 to form the stator assembly 1; the protruding portion 8 of the stator assembly 1 is inserted and fitted with the groove 13 of the terminal block 3 to form a combined component of the motor stator assembly 1 and the terminal block 3; finally, the motor housing 4 is integrally injection-molded outside the combined component, and at this time, the entire motor assembly is completed.

[0035] In this specification, the schematic description of the terms does not necessarily refer to the same embodiment. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments.

[0036] Based on the above-mentioned ideal embodiments of the present invention as inspiration, through the above description, relevant workers can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A motor, characterized in that, including a stator assembly (1), the stator assembly (1) including a stator body (1-1) and a stator housing (1-2) sleeved outside the stator body (1-1); a rotor assembly (2), the rotor assembly (2) including a permanent magnet (2-1) and a rotating shaft (2-2); a terminal block (3), the terminal block (3) including a socket (3-1) and a wire protection box (3-2) arranged above the socket (3-1); a motor housing (4), the motor housing (4) being arranged outside the terminal block (3); the rotor assembly (2) is arranged inside the stator assembly (1), one end of the stator assembly (1) is connected to the terminal block (3), and the motor housing (4) is connected to one end of the stator assembly (1) and covers the entire terminal block (3).

2. The motor according to claim 1, characterized in that, The stator body (1-1) is composed of a bearing (5) and at least two groups of middle pole plate groups (6) axially arranged below the bearing (5); the bearing (5) and the middle pole plate group (6) are connected by plastic encapsulation (7); the middle pole plate group (6) is composed of a first middle pole plate (6-1) and a second middle pole plate (6-2) arranged opposite to each other up and down, and a coil slot (6-3) for winding is formed between the first middle pole plate (6-1) and the second middle pole plate (6-2).

3. The electric motor according to claim 2, characterized in that, Both the first middle pole plate (6-1) and the second middle pole plate (6-2) are composed of a plate surface (6-4) and a plurality of trapezoidal plates (6-5) arranged on the plate surface (6-4); the first middle pole plate (6-1) is inverted above the second middle pole plate (6-2), and the trapezoidal plates (6-5) of the first middle pole plate (6-1) and the second middle pole plate (6-2) are arranged in a crossed manner.

4. The electric motor according to claim 2, characterized in that, The plastic encapsulation (7) is integrally injection-molded between the bearing (5) and the middle pole plate group (6), a convex portion (8) is provided at one end of the plastic encapsulation (7) away from the bearing (5), and a wiring seat is provided at the rear of the plastic encapsulation (7); the stator housing (1-2) is of a cylindrical structure, and a through hole (9) is provided at the top of the stator housing (1-2), and the aperture of the through hole (9) is matched with the outer diameter of the bearing (5).

5. The electric motor according to claim 1, characterized in that, The permanent magnet (2-1) is arranged inside the middle pole plate group (6), the permanent magnet (2-1) is sleeved on one end of the rotating shaft (2-2), the end of the rotating shaft (2-2) away from the permanent magnet (2-1) is connected to the bearing (5) and passes through the bearing (5), and the end of the rotating shaft (2-2) close to the permanent magnet (2-1) is connected to the terminal block (3).

6. The electric motor according to claim 1, characterized in that, The socket (3-1) includes a socket body (10) and pins (11) arranged inside the socket body (10); the socket body (10) is an injection-molded part, and the pins (11) are arranged in parallel inside the socket body (10) and are integrally injection-molded with the socket body (10).

7. The electric motor according to claim 6, wherein, A rectangular groove (12) for snap - connecting with the wire protection box (3 - 2) is provided at the rear of the socket body (10), and the rectangular groove (12) is matched with the lower end of the wire protection box (3 - 2); a groove (13) is provided at the front of the socket body (10), and the groove (13) is matched with the convex part (8) of the plastic seal (7) for connecting the stator assembly (1) and the terminal block (3).

8. The electric motor according to claim 1, characterized in that, The lateral direction of the motor housing (4) is a barrel - shaped structure that wraps around the outer side of one end of the stator housing (1 - 2) close to the terminal block (3), and the longitudinal direction of the motor housing (4) wraps around the outer side of the terminal block (3) and forms an opening (14) below.

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