A type of motor

Abstract

This utility model discloses an electric motor, including a rotating shaft, a rotor assembly, a stator assembly, a motor end cover, and a water-blocking ring. A bearing housing is provided on the motor end cover, with a shaft extension hole in the center. The water-blocking ring is installed outside the bearing housing and includes a mounting part and a water-blocking part. The mounting part is fitted onto the bearing housing, and the water-blocking part is trumpet-shaped. An opening is provided on one side of both the mounting part and the water-blocking part. A shaft hole is provided in the center of the mounting part for the rotating shaft to pass through. A horizontal blocking washer is provided between the shaft extension hole and the shaft hole, and is installed on the rotating shaft, blocking the shaft extension hole. Through the combination of the water-blocking ring and the horizontal blocking washer, when the motor shaft is installed horizontally, the opening faces downwards, facilitating rainwater to flow out from the opening. This effectively prevents rainwater from entering the motor from multiple directions, meeting the waterproof requirements for horizontally installed motors. It effectively prevents water from flowing into the motor, ensuring motor performance and extending motor life.

Description

Technical Field

[0001] This utility model relates to an electric motor. Background Technology

[0002] Air conditioner outdoor units typically have limited waterproofing capabilities, requiring solutions to improve waterproofing performance. Traditionally, the motor shaft is installed horizontally. This installation method can cause water accumulation at the end cover's shaft hole, the gap between the shaft and the water-blocking ring, leading to water ingress into the motor and potentially causing motor failure. Summary of the Invention

[0003] The purpose of this invention is to provide a motor that solves the technical problem in the prior art where the motor shaft is horizontally installed. In this installation method, water accumulates at the gap between the front cover of the shaft hole and the rotating shaft and the water baffle, which leads to the risk of water entering the motor and causing motor failure.

[0004] The technical solution of this utility model is implemented as follows:

[0005] This utility model provides an electric motor, including a rotating shaft, a rotor assembly, a stator assembly, a motor end cover, and a water-retaining ring. The rotating shaft is mounted on the rotor assembly, the stator assembly is sleeved outside the rotor assembly, the stator assembly and the rotor assembly are mounted inside the motor end cover, the motor end cover is provided with a bearing housing, the bearing housing has a shaft extension hole in the middle, a bearing is installed inside the bearing housing, the rotating shaft is supported on the bearing and extends out from the middle of the bearing housing, and the water-retaining ring is installed outside the bearing housing. Its distinguishing feature is:

[0006] The water baffle ring includes an installation part and a water baffle part. The installation part is fitted outside the bearing housing, and the water baffle part is flared. The installation part and the water baffle part have an opening on one side. The installation part has a shaft hole in the middle for the rotating shaft to pass through. A horizontal blocking washer is provided between the shaft extension hole and the shaft hole. The horizontal blocking washer is installed on the rotating shaft and blocks the shaft extension hole.

[0007] The aforementioned mounting portion includes a sleeve portion and an end plate, the end plate and the sleeve portion forming a first cavity, the bearing seat being placed inside the first cavity, and the shaft hole being arranged in the middle of the end plate.

[0008] The aforementioned water-blocking part includes a side wall, one end of which has a funnel-shaped opening and the other end is connected to an end plate. The side wall and the end plate form a second cavity, which is connected to the shaft hole, the first cavity, and the shaft extension hole.

[0009] The aforementioned water-retaining ring is manufactured as a single piece.

[0010] Compared with the prior art, this utility model has the following advantages:

[0011] 1. An electric motor, comprising a shaft, a rotor assembly, a stator assembly, a motor end cover, and a water-blocking ring, wherein the shaft is mounted on the rotor assembly, the stator assembly is fitted over the rotor assembly, the stator assembly and the rotor assembly are mounted inside the motor end cover, a bearing housing is provided on the motor end cover, the bearing housing has a shaft extension hole in the middle, a bearing is installed inside the bearing housing, the shaft is supported on the bearing and passes through the middle of the bearing housing, and the water-blocking ring is installed outside the bearing housing, characterized in that: the water-blocking ring comprises an mounting part and a water-blocking part, the mounting part is fitted over the bearing housing, the water-blocking part is funnel-shaped, an opening is provided on one side of the mounting part and the water-blocking part, a shaft hole is provided in the middle of the mounting part for the shaft to pass through, a horizontal blocking washer is provided between the shaft extension hole and the shaft hole, the horizontal blocking washer is mounted on the shaft, and the horizontal blocking washer blocks the shaft extension hole, and through the combination of the water-blocking ring and the horizontal blocking washer, when the motor shaft is horizontally installed, the opening faces downward, which facilitates rainwater to flow out from the opening, effectively preventing rainwater from entering the motor from multiple directions, and meeting the waterproof requirements of a horizontally installed motor. This effectively prevents water from flowing into the motor, ensuring its performance and extending its lifespan.

[0012] 2. Other advantages of this utility model are described in detail in the embodiment section of the specification. Attached Figure Description

[0013] Figure 1 A perspective view provided for this utility model;

[0014] Figure 2 Exploded view provided for this utility model;

[0015] Figure 3 A front view provided for this utility model;

[0016] Figure 4 for Figure 3 Sectional view of AA. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] Example 1:

[0019] like Figures 1 to 4As shown, this embodiment provides a motor, including a rotating shaft 1, a rotor assembly 2, a stator assembly 3, a motor end cover 4, and a water-blocking ring 5. The rotating shaft 1 is mounted on the rotor assembly 2, the stator assembly 3 is sleeved on the outside of the rotor assembly 2, the stator assembly 3 and the rotor assembly 2 are mounted inside the motor end cover 4, the motor end cover 3 is provided with a bearing seat 31, the bearing seat 31 has a shaft extension hole 30 in the middle, the bearing seat 31 is installed with a bearing 32, the rotating shaft 1 is supported on the bearing 32 and passes through the middle of the bearing seat 31, and the water-blocking ring 5 is installed on the outside of the bearing seat 31. The characteristic feature is that:

[0020] The water-blocking ring 5 includes a mounting part 51 and a water-blocking part 52. The mounting part 51 is fitted onto the bearing housing 31, and the water-blocking part 52 is trumpet-shaped. An opening 520 is provided on one side of both the mounting part 51 and the water-blocking part 52. A shaft hole 510 is provided in the middle of the mounting part 51 for the rotating shaft 1 to pass through. A horizontal blocking washer 6 is provided between the shaft extension hole 30 and the shaft hole 510. The horizontal blocking washer 6 is installed on the rotating shaft 1 and covers the shaft extension hole 30. Through the combination of the water-blocking ring and the horizontal blocking washer, when the motor shaft is installed horizontally, the opening faces downwards, facilitating rainwater to flow out from the opening. This effectively prevents rainwater from entering the motor from multiple directions, meeting the waterproof requirements for horizontally installed motors. It effectively prevents water from flowing into the motor, ensuring motor performance and extending motor life.

[0021] The aforementioned mounting part 51 includes a sleeve part 511 and an end plate 512. The end plate 512 and the sleeve part 511 form a first cavity 513. The bearing seat 31 is placed in the first cavity 513, and the shaft hole 510 is arranged in the middle of the end plate 512. The structure is reasonably arranged and easy to install.

[0022] The aforementioned water-blocking part 52 includes a side wall 521. One end of the side wall 521 has a trumpet-shaped opening 522, and the other end is connected to the end plate 512. The side wall 521 and the end plate 512 form a second cavity 523. The second cavity 523, the shaft hole 510, the first cavity 513 and the shaft extension hole 30 are connected, and the structure is reasonably arranged.

[0023] The aforementioned water-blocking ring 5 is manufactured as a single piece, making it easy to manufacture.

[0024] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited thereto. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model are equivalent substitutions and are included within the protection scope of the present utility model.

Claims

1. An electric motor, comprising a shaft (1), a rotor assembly (2), a stator assembly (3), a motor end cover (4), and a water baffle (5), wherein the shaft (1) is mounted on the rotor assembly (2), the stator assembly (3) is sleeved on the outside of the rotor assembly (2), the stator assembly (3) and the rotor assembly (2) are mounted in the motor end cover (4), a bearing housing (31) is provided on the motor end cover (3), a shaft extension hole (30) is provided in the middle of the bearing housing (31), a bearing (32) is installed in the bearing housing (31), the shaft (1) is supported on the bearing (32) and passes through the middle of the bearing housing (31), and the water baffle (5) is installed on the outside of the bearing housing (31), characterized in that: The water baffle (5) includes a mounting part (51) and a water baffle (52). The mounting part (51) is fitted outside the bearing seat (31). The water baffle (52) is flared. An opening (520) is provided on one side of the mounting part (51) and the water baffle (52). A shaft hole (510) is provided in the middle of the mounting part (51) for the rotating shaft (1) to pass through. A horizontal blocking washer (6) is provided between the shaft extension hole (30) and the shaft hole (510). The horizontal blocking washer (6) is installed on the rotating shaft (1) and blocks the shaft extension hole (30).

2. An electric machine as claimed in claim 1, characterized in that: The mounting part (51) includes a sleeve part (511) and an end plate (512). The end plate (512) and the sleeve part (511) form a first cavity (513). The bearing seat (31) is placed in the first cavity (513), and the shaft hole (510) is arranged in the middle of the end plate (512).

3. An electric machine as claimed in claim 2, characterised in that: The water-blocking part (52) includes a side wall (521), one end of which has a trumpet-shaped opening (522) and the other end is connected to the end plate (512). The side wall (521) and the end plate (512) form a second cavity (523), which is connected to the shaft hole (510), the first cavity (513), and the shaft extension hole (30).

4. An electrical machine according to claim 1 or 2 or 3, characterised in that: The water-blocking ring (5) is manufactured as a single piece.

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