Asynchronous motor

Abstract

The utility model provides an asynchronous motor, and belongs to the technical field of motors. The problem that an existing asynchronous motor is poor in heat dissipation performance is solved. The asynchronous motor comprises a shell and a rear hood installed on the shell, an impeller assembly connected with a crankshaft is arranged in the rear hood, the impeller assembly comprises a front impeller and a rear impeller, shaft sleeves are arranged in the middles of the front impeller and the rear impeller, the shaft sleeves are connected to the crankshaft in a matched mode, the front impeller comprises a plurality of first blades, and first heat dissipation areas are arranged between the adjacent first blades. The rear impeller comprises a plurality of second blades, a second heat dissipation area is arranged between every two adjacent second blades, the first blades and the second blades are distributed in a staggered mode, the first blades are arranged in a bent mode, the second blades obliquely extend outwards from the shaft sleeve, the outer ends of the first blades are arranged in the second blades, intervals are reserved between the outer ends of the second blades, and the outer ends of the second blades are provided with heat conduction parts extending outwards. The LED lamp has the advantage of being good in heat dissipation effect.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, and relates to an electric motor, and more particularly to an asynchronous electric motor. Background Technology

[0002] Currently, asynchronous motors typically have a cooling impeller connected to the tail of the shaft to dissipate heat during operation. However, the current impeller structure is relatively simple, resulting in poor heat dissipation performance and affecting overall performance. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the prior art by providing an asynchronous motor with high-efficiency heat dissipation performance.

[0004] The objective of this utility model can be achieved through the following technical solution: An asynchronous motor includes a housing and a rear cover mounted on the housing. An impeller assembly connected to a motor shaft is provided inside the rear cover. The impeller assembly comprises a front impeller and a rear impeller, with a bushing in the middle of both the front and rear impellers. The bushing is fitted onto the motor shaft. The front impeller includes several blades (I), with a heat dissipation zone (I) between adjacent blades (I). The rear impeller includes several blades (II), with a heat dissipation zone (II) between adjacent blades (II). The blades (I) and (II) are staggered. The blades (I) are curved, and the blades (II) extend outward from the bushing at an angle. The outer end of each blade (I) is included within a blade (II), and there is a gap between the outer ends of the blades (II). The outer end of each blade (II) has an outwardly extending heat-conducting portion.

[0005] In the aforementioned asynchronous motor, the heat-conducting part and the second blade are connected by an arc transition.

[0006] In the aforementioned asynchronous motor, the front impeller and the rear impeller are integrally connected to the bushing.

[0007] In the aforementioned asynchronous motor, the rear cover is provided with multiple heat dissipation holes.

[0008] Compared with existing technologies, this asynchronous motor has the advantage of better heat dissipation. Attached Figure Description

[0009] Figure 1 This is a sectional view of the asynchronous motor.

[0010] Figure 2 This is a 3D view of the impeller assembly.

[0011] In the diagram, 1 is the casing; 2 is the rear cover; 3 is the shaft; 4 is the front impeller; 5 is the rear impeller; 6 is the bushing; 7 is blade one; 8 is heat dissipation zone one; 9 is blade two; 10 is heat dissipation zone two; 11 is the heat-conducting part; and 12 is the heat dissipation hole. 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 As shown, this asynchronous motor includes a housing and a rear cover mounted on the housing. An impeller assembly connected to the motor shaft is located inside the rear cover. The impeller assembly includes a front impeller and a rear impeller, with a bushing in the middle of both the front and rear impellers. The bushing is fitted onto the motor shaft. The front impeller includes several blades (I), with a heat dissipation zone (I) between adjacent blades (I). The rear impeller includes several blades (II), with a heat dissipation zone (II) between adjacent blades (II). Blades (I) and blades (II) are staggered. Blades (I) are curved, and blades (II) extend outward from the bushing at an angle. The outer end of blade (I) is included within blade (II), and there is a gap between the outer ends of blades (II). The outer end of blade (II) has an outwardly extending heat-conducting portion.

[0014] Preferably, the heat-conducting part and the second blade are connected by an arc transition.

[0015] Preferably, the front impeller and the rear impeller are integrally connected to the bushing.

[0016] Preferably, the rear hood has multiple heat dissipation holes.

[0017] The impeller assembly is driven to rotate by the shaft via the bushing. The heat inside the motor is dissipated outward through the heat-conducting parts at the outer ends of the bent blades 1 and 2. It is also dissipated outward through the heat dissipation zone 1 between blades 1 and the heat-conducting parts at the ends of blades 2 and 2. Furthermore, the staggered arrangement of blades 1 and 2 causes heat dissipation zone 1 and heat dissipation zone 2 to be intertwined, with some heat being dissipated through the two-blade structure and some through heat dissipation zone 2, preventing heat concentration and improving the heat dissipation effect.

[0018] 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.

[0019] Although this document frequently uses terms such as casing, rear cover, shaft, front impeller, rear impeller, bushing, blade one, heat dissipation zone one, blade two, heat dissipation zone two, heat-conducting part, and heat dissipation hole, the possibility of using other terms is not excluded. These terms are used 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. An asynchronous motor, comprising a housing (1) and a rear cover (2) mounted on the housing (1), wherein an impeller assembly connected to a shaft (3) is disposed within the rear cover (2), characterized in that, The impeller assembly includes a front impeller (4) and a rear impeller (5). The front impeller (4) and the rear impeller (5) have a bushing (6) in the middle. The bushing (6) is fitted onto the machine shaft (3). The front impeller (4) includes a plurality of blades (7). There is a heat dissipation zone (8) between adjacent blades (7). The rear impeller (5) includes a plurality of blades (9). There is a heat dissipation zone (10) between adjacent blades (9). The blades (7) and blades (9) are staggered. The blades (7) are bent. The blades (9) extend outward from the bushing (6). The outer end of the blades (7) is included in the blades (9) and there is a gap between the outer ends of the blades (9). The outer end of the blades (9) has an outwardly extending heat-conducting part (11).

2. An asynchronous motor according to claim 1, characterized in that, The heat-conducting part (11) and the blade (9) are connected by a circular arc.

3. An asynchronous motor according to claim 1, characterized in that, The front impeller (4) and the rear impeller (5) are integrally connected to the bushing (6).

4. An asynchronous motor according to claim 1, characterized in that, The rear cover (2) is provided with multiple heat dissipation holes (12).

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