Novel three-phase asynchronous motor

Abstract

The utility model provides a novel three-phase asynchronous motor, and belongs to the technical field of motors. The three-phase asynchronous motor control box solves the problem that an existing three-phase asynchronous motor control box is poor in dustproof and waterproof effect. The novel three-phase asynchronous motor comprises a motor control box, the motor control box comprises a shell and a cover body, the shell and the cover body are provided with mutually corresponding screw hole connecting bases, the corresponding screw hole connecting bases are connected through screws, the top of the shell is sequentially provided with an outer blocking shoulder and an inner blocking shoulder in a protruding mode from outside to inside, and the inner blocking shoulder is higher than the outer blocking shoulder. A sealing structure is arranged between the outer retaining shoulder and the inner retaining shoulder and comprises a first-layer sealing part, a second-layer sealing part and a third-layer sealing part, the first-layer sealing part abuts against the top wall of the outer retaining shoulder in a sealed mode, and the second-layer sealing part abuts against the position, between the outer retaining shoulder and the inner retaining shoulder, of the top wall of the shell in a sealed mode; the three-layer sealing part abuts against the end wall of the inner blocking shoulder in a sealing mode. The utility model has the advantages that the sealing effect is good, and the overall service life is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, and relates to a three-phase asynchronous motor, and particularly to a novel three-phase asynchronous motor. Background Technology

[0002] Three-phase asynchronous motors typically have a control box mounted on their housing. However, the sealing structure of this control box is unstable, resulting in poor dust and water resistance, which can damage internal components and affect its use. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a novel three-phase asynchronous motor with a high-sealing control box structure.

[0004] The objective of this utility model can be achieved through the following technical solution: A novel three-phase asynchronous motor, comprising a motor control box, the motor control box comprising a housing and a cover, both the housing and the cover having corresponding screw hole connecting seats, and the corresponding screw hole connecting seats being connected by screws, characterized in that, the top of the housing has an outer shoulder and an inner shoulder protruding sequentially from the outside to the inside, the inner shoulder being higher than the outer shoulder, a sealing structure being installed between the outer shoulder and the inner shoulder, the sealing structure comprising a first sealing part, a second sealing part and a third sealing part, the first sealing part sealingly abutting against the top wall of the outer shoulder, the second sealing part sealingly abutting against the top wall of the housing between the outer shoulder and the inner shoulder, the third sealing part sealingly abutting against the end wall of the inner shoulder, and the third sealing part extending downward to a sealing placement part.

[0005] In the aforementioned novel three-phase asynchronous motor, the bottom of the housing has a downwardly protruding cover around its perimeter, and the outer end of the sealing layer abuts against the inner wall of the protruding cover.

[0006] In the aforementioned novel three-phase asynchronous motor, the housing has a sealing groove for the sealing mounting part to access.

[0007] Compared with existing technologies, this new type of three-phase asynchronous motor has the advantages of better sealing effect and improved overall service life. Attached Figure Description

[0008] Figure 1 This is an overall structural diagram of this new type of three-phase asynchronous motor.

[0009] Figure 2 This is a cross-sectional view of the motor control box.

[0010] Figure 3 yes Figure 2 Enlarged view of point A.

[0011] In the diagram, 1 is the shell; 2 is the cover; 3 is the screw hole connector; 4 is the outer shoulder; 5 is the inner shoulder; 6 is the first sealing part; 7 is the second sealing part; 8 is the third sealing part; 9 is the sealing placement part; and 10 is the convex cover. Detailed Implementation

[0012] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0013] like Figure 1 , Figure 2 , Figure 3 As shown, this novel three-phase asynchronous motor includes a motor control box, which includes a housing 1 and a cover 2. Both the housing 1 and the cover 2 have corresponding screw hole connecting seats 3, and the corresponding screw hole connecting seats 3 are connected by screws. The top of the housing 1 has an outer shoulder 4 and an inner shoulder 5 protruding from the outside to the inside. The inner shoulder 5 is higher than the outer shoulder 4. A sealing structure is installed between the outer shoulder 4 and the inner shoulder 5. The sealing structure includes a first sealing part 6, a second sealing part 7, and a third sealing part 8. The first sealing part 6 seals against the top wall of the outer shoulder 4, the second sealing part 7 seals against the top wall of the housing 1 between the outer shoulder 4 and the inner shoulder 5, and the third sealing part 8 seals against the end wall of the inner shoulder 5. The third sealing part 8 extends downward to a sealing placement part 9.

[0014] Preferably, the bottom of the housing 1 has a downwardly protruding cover 10 around its perimeter, and the outer end of a sealing portion 6 abuts against the inner wall of the cover 10.

[0015] Preferably, the housing 1 has a sealing groove for the sealing mounting part 9 to access.

[0016] The staggered separation effect is achieved by using inner and outer shoulders 4 with height difference, and a sealing structure is installed between them. First, the installation stability of the sealing structure can be achieved, which can play a lateral positioning role. The sealing structure is not easy to shift or deform due to disassembly and assembly. In addition, the layered sealing structure further prevents dust and water from entering, achieving high-efficiency sealing performance.

[0017] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0018] Although this document frequently uses terms such as shell 1, cover 2, screw hole connecting seat 3, outer shoulder 4, inner shoulder 5, first-layer sealing part 6, second-layer sealing part 7, third-layer sealing part 8, sealing placement part 9, and convex cover 10, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A novel three-phase asynchronous motor, comprising a motor control box, the motor control box comprising a housing (1) and a cover (2), both the housing (1) and the cover (2) having corresponding screw hole connecting seats (3), and the corresponding screw hole connecting seats (3) being connected by screws, characterized in that, The top of the housing (1) has an outer shoulder (4) and an inner shoulder (5) protruding from the outside to the inside. The inner shoulder (5) is higher than the outer shoulder (4). A sealing structure is installed between the outer shoulder (4) and the inner shoulder (5). The sealing structure includes a first sealing part (6), a second sealing part (7) and a third sealing part (8). The first sealing part (6) seals against the top wall of the outer shoulder (4). The second sealing part (7) seals against the top wall of the housing (1) between the outer shoulder (4) and the inner shoulder (5). The third sealing part (8) seals against the end wall of the inner shoulder (5). The third sealing part (8) extends downward to a sealing placement part (9).

2. A novel three-phase asynchronous motor according to claim 1, characterized in that, The bottom of the housing (1) has a downwardly protruding cap (10) around its perimeter, and the outer end of the sealing layer (6) abuts against the inner wall of the cap (10).

3. A novel three-phase asynchronous motor according to claim 1, characterized in that, The housing (1) has a sealing groove for the sealing installation part (9) to be accessed.

Images