Housing assembly for ec motor

Abstract

The utility model discloses a housing assembly used for an ec motor, which belongs to the technical field of motors, and is characterized in that the housing assembly comprises a plastic package body provided with a stator winding in a plastic package mode and a hollow housing, the housing covers the plastic package body, the housing and the plastic package body are detachably connected, and the lower surface of the housing is attached to the upper surface of the plastic package body. According to the shell assembly, the shell and the plastic package body are matched to form the cavity used for installing the driving plate and the electrical component, the shell assembly is matched with the plastic package body to form the cavity used for installing the driving plate and the electrical component, and therefore the driving plate and the electrical component are protected, stable operation of the driving plate and the electrical component is ensured, and the service life of the driving plate and the electrical component is prolonged. And the overall structure is more compact, the occupied space is effectively reduced, the stator winding is plastically packaged in the plastic package body, the influence of the external environment on the stator winding is reduced, and the service life of the stator winding is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to a housing component for an EC motor. Background Art

[0002] A housing assembly for an EC motor. This motor is a brushless DC, maintenance-free motor with a built-in intelligent control module. Essentially, it is a three-phase AC permanent magnet synchronous motor powered by a DC power supply, but with a built-in DC-to-AC conversion device (via six inverter modules) and rotor position feedback technology.

[0003] At present, a housing assembly for an EC motor has its electrical components (transformer) installed outside the motor as an independent component. The electrical components are easily affected by the external environment, especially in a humid, high-temperature or corrosive environment. Additional protection measures are needed to ensure the stable operation of the electrical components. These additional protection measures will result in a larger space being occupied, and the stator winding is usually directly exposed to the outside and affected by the external environment. Utility Model Content

[0004] The purpose of this utility model is to address the above-mentioned problems existing in the prior art and to propose a housing assembly for an EC motor. The technical problem to be solved by this utility model is: how to ensure the stable operation of electrical components and reduce their space occupation.

[0005] The above technical objectives of the present invention can be achieved through the following technical solutions: a housing assembly for an EC motor, comprising a plastic-encapsulated body with a stator winding and a hollow shell, the shell cover is arranged on the plastic-encapsulated body and the two are detachably connected, the lower surface of the shell is in contact with the upper surface of the plastic-encapsulated body, and the shell and the plastic-encapsulated body cooperate to form a cavity for installing a drive board and electrical components.

[0006] In the above-mentioned shell assembly for an EC motor, a plurality of mounting feet 1 are provided on the outer peripheral side of the shell, and a plurality of mounting feet 1 are provided on each of the mounting holes 1; a plurality of mounting feet 2 are provided on the outer peripheral side of the plastic package body, and a plurality of mounting feet 2 are provided on each of the mounting holes 2.

[0007] In the above-mentioned housing assembly for an EC motor, a plurality of mounting posts are provided on the inner side wall of the housing, and a fixing groove is provided on each of the mounting posts.

[0008] In the above-mentioned housing assembly for an EC motor, a plurality of positioning posts are provided on the inner side wall of the housing.

[0009] In the above-mentioned housing assembly for an EC motor, the inner side wall of the housing is provided with a plurality of positioning grooves.

[0010] In the above-mentioned housing assembly for an EC motor, the inner side wall of the housing is provided with reinforcing ribs.

[0011] In the above-mentioned housing assembly for an EC motor, a wire outlet hole is provided on the outer side wall of the housing.

[0012] In the above-mentioned housing assembly for an EC motor, a sealing groove for filling a sealant is provided at the bottom of the plastic package body, and the sealing groove is annular.

[0013] In the above-mentioned housing assembly for an EC motor, the outer side wall of the housing is provided with a plurality of reinforcement blocks.

[0014] In the above-mentioned housing assembly for an EC motor, a plurality of annular grooves are formed in the outer wall box of the housing.

[0015] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0016] 1. The shell and the plastic package form a cavity for installing the driver board and electrical components, thereby protecting the driver board and electrical components, ensuring the stable operation of the driver board and electrical components, making the overall structure more compact, and effectively reducing its space occupation;

[0017] 2. The stator winding is encapsulated in the plastic body to reduce the impact of the external environment on the stator winding, extend its service life, and make the stator winding safer, more durable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment;

[0019] Figure 2 is a cross-sectional view of an embodiment;

[0020] Figure 3 Schematic diagram of the structure of the plastic package body of the embodiment;

[0021] Figure 4 Schematic diagram of the structure of the housing of the embodiment;

[0022] Figure 5 2 is a schematic structural diagram of the housing of the embodiment from another angle.

[0023] Figure numerals: 1, plastic package; 2, shell; 3, cavity; 4, mounting foot 1; 5, mounting hole 1; 6, mounting foot 2; 7, mounting hole 2; 8, mounting column; 9, fixing groove; 10, positioning column; 11, positioning groove; 12, reinforcing rib; 13, wire outlet hole; 14, sealing groove; 15, reinforcing block; 16, annular groove. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0025] A housing assembly for an ec motor, such as Figures 1 to 5 As shown, it includes a plastic-sealed body 1 in which a stator winding is plastic-sealed, and a hollow shell 2 , the shell 2 is covered on the plastic-sealed body 1 and the two are detachably connected, and the lower surface of the shell 2 is in contact with the upper surface of the plastic-sealed body 1 .

[0026] Several mounting feet 4 are provided on the outer peripheral side of the shell 2, and the several mounting feet 4 are evenly distributed along the circumference of the shell 2. Several mounting feet 2 6 are provided on the outer peripheral side of the plastic package body 1, and the several mounting feet 2 6 are evenly distributed along the circumference of the plastic package body 1. In this embodiment, the number of mounting feet 1 4 and mounting feet 2 6 is four. Of course, the number of mounting feet 1 4 and mounting feet 2 6 can be appropriately increased or decreased.

[0027] Several mounting feet 1 4 are provided with mounting holes 1 5, and several mounting feet 2 6 are provided with mounting holes 2 7. The connection between the shell 2 and the plastic package body 1 is achieved by screws in conjunction with the mounting holes 1 5 and the mounting holes 2 7, thereby ensuring the stability of the connection between the two.

[0028] It should be noted that by plastic-sealing the stator winding in the plastic packaging body 1 , the influence of the external environment on the stator winding can be effectively reduced, its service life can be extended, and the stability and reliability of the motor operation can be ensured.

[0029] The shell 2 and the plastic package body 1 cooperate to form a cavity 3 for installing the drive board and electrical components. It should be noted that the cavity 3 is formed by the shell 2 and the plastic package body 1 for installing the drive board and electrical components, which not only protects the drive board and electrical components and ensures the stable operation of the drive board and electrical components, but also makes the overall structure more compact and can effectively reduce space occupancy.

[0030] The inner wall of the shell 2 is provided with several mounting columns 8, and several mounting columns 8 are provided with fixing grooves 9. It should be noted that the drive plate has positioning holes corresponding to the mounting columns 8, and the mounting columns 8 are adapted to the positioning holes. When installing the drive plate, the mounting columns 8 pass through the positioning holes. The cooperation between the mounting columns 8 and the positioning holes ensures the stability of the drive plate during installation, and then the installation and fixation of the drive plate are achieved by screws cooperating with the fixing grooves 9.

[0031] The inner wall of the shell 2 is provided with several positioning columns 10. It should be noted that the drive plate has a positioning groove corresponding to the installation column 8, and the positioning column 10 is adapted to the positioning groove. When the drive plate is installed, the positioning column 10 is located in the positioning groove, and the stability of the drive plate is ensured by the cooperation of the two.

[0032] The inner wall of the shell 2 is provided with a plurality of positioning grooves 11, and the driving plate has positioning feet adapted to the positioning grooves 11. By inserting the positioning feet into the positioning grooves 11, the stability of the driving plate is further ensured, thereby improving the stability of the overall structure.

[0033] The inner wall of the shell 2 is provided with reinforcing ribs 12 , and the outer wall of the shell 2 is provided with a plurality of reinforcing blocks 15 , thereby effectively improving the structural strength of the shell 2 .

[0034] The outer wall of the housing 2 is provided with a wire outlet hole 13, through which wires can pass, and heat can also be dissipated through the wire outlet hole 13, thereby improving heat dissipation and ensuring stable operation of the motor.

[0035] A sealing groove 14 for filling a sealant is provided at the bottom of the plastic package body 1. The sealing groove 14 is annular. By filling the sealant into the sealing groove 14, the sealing between the plastic package body 1 and the shell 2 is ensured, preventing external moisture or impurities from penetrating inward from between the two, thereby avoiding affecting the stable operation of the motor.

[0036] The outer wall of the shell 2 is recessed to form a plurality of annular grooves 16, which are evenly distributed along the circumference of the shell 2. The annular grooves 16 increase the contact area between the shell 2 and the outside, thereby increasing the heat dissipation area and enhancing the heat dissipation performance.

[0037] The specific embodiments described in this article are merely examples of the spirit of the present invention; technicians in the technical field of the present invention may make various modifications or additions to the described specific embodiments or replace them in a similar manner, but they will not deviate from the spirit of the present invention or exceed the scope defined by the attached claims.

Claims

1. A housing assembly for an EC motor, characterized in that: The invention comprises a plastic-encapsulated body (1) in which a stator winding is plastic-encapsulated, and a hollow shell (2), wherein the shell (2) is covered on the plastic-encapsulated body (1) and the two are detachably connected, the lower surface of the shell (2) is in contact with the upper surface of the plastic-encapsulated body (1), and the shell (2) cooperates with the plastic-encapsulated body (1) to form a cavity (3) for mounting a drive board and electrical components.

2. A housing assembly for an EC motor according to claim 1, characterized in that: The outer peripheral side of the shell (2) is provided with a plurality of mounting feet (4), and a plurality of mounting holes (5) are provided on the plurality of mounting feet (4). The outer peripheral side of the plastic package body (1) is provided with a plurality of mounting feet (6), and a plurality of mounting holes (7) are provided on the plurality of mounting feet (6).

3. The housing assembly for an EC motor according to claim 1, characterized in that: The inner side wall of the housing (2) is provided with a plurality of mounting columns (8), and each of the mounting columns (8) is provided with a fixing groove (9).

4. The housing assembly for an EC motor according to claim 1, characterized in that: The inner side wall of the housing (2) is provided with a plurality of positioning columns (10).

5. The housing assembly for an EC motor according to claim 1, characterized in that: The inner side wall of the housing (2) is provided with a plurality of positioning grooves (11).

6. The housing assembly for an EC motor according to claim 1, characterized in that: The inner side wall of the shell (2) is provided with reinforcing ribs (12).

7. The housing assembly for an EC motor according to claim 1, characterized in that: The outer side wall of the housing (2) is provided with a wire outlet hole (13).

8. The housing assembly for an EC motor according to claim 1, characterized in that: The bottom of the plastic sealing body (1) is provided with a sealing groove (14) for filling a sealing material, and the sealing groove (14) is annular.

9. The housing assembly for an EC motor according to claim 1, characterized in that: The outer side wall of the shell (2) is provided with a plurality of reinforcement blocks (15).

10. The housing assembly for an EC motor according to claim 1, characterized in that: The outer wall of the shell (2) is recessed to form a plurality of annular grooves (16).

Images