An assembled plastic-encapsulated motor

Abstract

The utility model discloses a kind of assembled plastic package motor in the technical field of plastic package motor, including the body of plastic package motor, the rotor is rotatably installed in the inside of body, rear cover is embedded in the rear side of body, fixed cavity is opened in the inside of rear cover, the top drive for cooperation rotor rotation is installed in the inside of fixed cavity, four fixed slots of circumferential arrangement are opened in the inside wall of body and close to rear cover, buckle member for installing rear cover is installed in the inside of fixed slot, rotor is placed in body and end portion protrudes body, rear cover is inlayed with body and is clamped tightly, buckle member can avoid rear cover edge, buckle member is locked and clamped in the locking of rear cover edge, avoid rear cover loosening or disengaging, top drive installed in rear cover can be contacted and top drive with rotor rear end portion, top drive can be rotated by being driven by rotor, prevent rotor and rear cover from happening violent friction and cause damage or affect service life.

Description

Technical Field

[0001] This utility model relates to the field of encapsulated motors, specifically an assembled encapsulated motor. Background Technology

[0002] Plastic-encapsulated motors, which integrate components such as stator cores and windings into a single structure through plastic encapsulation, have become core power components for home appliances, smart homes, and small industrial equipment. As downstream industries increasingly demand modular assembly and rapid maintenance of motors, modular plastic-encapsulated motors are gradually replacing traditional one-piece cast motors. However, current modular plastic-encapsulated motors have significant structural design flaws that severely restrict their operational stability and service life.

[0003] The existing assembled encapsulated motors mostly use single bolts or simple snap-fit ​​connections to fix the housing to the stator and back cover 3. This makes subsequent disassembly and maintenance work inconvenient. When tightening the bolts, uneven force can easily cause slight deformation of the housing. Simple snap-fit ​​connections are often made of plastic, which can easily undergo plastic deformation under long-term force, resulting in gaps between the housing and the back cover. External dust and moisture can easily enter the motor, corroding the stator windings and causing motor failure. Furthermore, the operating environment of assembled encapsulated motors is often accompanied by vibration, but existing products do not have a multi-locking fixing structure. They rely on a single bolt or clip to withstand the vibration and impact force, which can easily lead to bolt loosening and clip breakage, resulting in relative displacement between the various components of the motor. The rear cover of some existing assembled plastic-encapsulated motors is mostly a flat plastic structure. When the rotor shaft end is in direct contact with the rear cover, the dry friction between the shaft end and the rear cover when the rotor rotates at high speed will generate a lot of heat, and at the same time cause wear on the contact surface of the rear cover, affecting the service life of the motor. Therefore, it is necessary to design an assembled plastic-encapsulated motor to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an assembled encapsulated motor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an assembled encapsulated motor, comprising a motor body, a rotor rotatably mounted inside the motor body, a rear cover embedded in the rear side of the motor body, a fixing cavity formed inside the rear cover, a pusher for cooperating with the rotation of the rotor installed inside the fixing cavity, and four circumferentially arranged fixing slots formed on the inner wall of the motor body near the rear cover, with a buckle for installing the rear cover installed inside the fixing slots.

[0006] Preferably, the actuating member includes an elastic ring fixedly connected to the inner wall of the fixed cavity, a pushing block fixedly connected to one side of the elastic ring, and a pad ring rotatably connected to the outside of the pushing block and located inside the fixed cavity.

[0007] Preferably, the fastener includes a locking strip that is slidably connected to the inner side of the fixing groove, a pull plate is fixedly connected to the top of the locking strip, a spring is fixedly connected between the inner side of the fixing groove and the locking strip, and four circumferentially arranged locking grooves are opened on the outer edge of the back cover.

[0008] Preferably, four bolt rods are screwed onto the other end of the body and located on one side of the fixing groove, and a groove for fixing the bolt rods is provided on the other side of the pull plate.

[0009] Preferably, a plurality of elastic rings are fixedly installed on the inner side of the elastic ring in a uniform arrangement.

[0010] Preferably, a wear-resistant pad is provided on the other side of the pad ring, and a plurality of evenly arranged arc-shaped grooves are formed on one side of the wear-resistant pad.

[0011] Preferably, the other side of the back cover has an extraction groove, and four notches arranged in a circle are formed around the extraction groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The rotor is placed inside the main body with its end extending out of the main body. The back cover is fitted and locked to the main body. The fastener can avoid the edge of the back cover. The fastener is locked into the edge of the back cover to prevent the back cover from loosening or falling off. The pusher installed inside the back cover can contact and push the rear end of the rotor. The pusher can rotate under the drive of the rotor to prevent the rotor from rubbing against the back cover, which would cause damage or affect the service life.

[0013] 2. The elastic ring can squeeze and push the push block. The push block pushes the rear end of the rotor through the pad ring. The pad ring on one side of the push block can rotate due to the rotor, which can prevent the pad ring from being squeezed, rubbed or damaged when the rotor rotates. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a left-side sectional perspective view of the overall structure of this utility model; Figure 3 The overall structure of this utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram showing the disassembled structure of the body, rotor, and rear cover in the overall structure of this utility model. Figure 1 ; Figure 5 This is a schematic diagram showing the disassembled structure of the body, rotor, and rear cover in the overall structure of this utility model. Figure 2 .

[0015] In the diagram: 1. Body; 2. Rotor; 3. Rear cover; 4. Fixing cavity; 5. Fixing groove; 6. Elastic ring; 7. Push block; 8. Washer ring; 9. Locking strip; 10. Pull plate; 11. Spring; 12. Locking groove; 13. Bolt rod; 14. Groove; 15. Elastic ring; 16. Wear-resistant pad; 17. Arc groove; 18. Removal groove; 19. Notch. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1

[0018] Please refer to Figure 1-5 As shown, this utility model provides an assembled encapsulated motor, including a motor body 1, a rotor 2 rotatably mounted inside the body 1, a rear cover 3 embedded in the rear side of the body 1, a fixing cavity 4 opened inside the rear cover 3, a pusher for cooperating with the rotation of the rotor 2 installed inside the fixing cavity 4, and four circumferentially arranged fixing grooves 5 opened on the inner side wall of the body 1 near the rear cover 3, and a buckle for installing the rear cover 3 installed inside the fixing grooves 5.

[0019] In addition, the rotor 2 is placed inside the body 1 with its end extending out of the body 1, and the rear cover 3 is fitted and locked to the body 1. The fastener can avoid the edge of the rear cover 3. The fastener is locked into the edge of the rear cover 3 to prevent the rear cover 3 from loosening or falling off. The actuating component installed inside the rear cover 3 can contact and actuate the rear end of the rotor 2. The actuating component can rotate under the drive of the rotor 2 to prevent the rotor 2 from being damaged or affecting the service life due to severe friction between the rotor 2 and the rear cover 3.

[0020] Specifically, the actuating component includes an elastic ring 6 fixedly connected to the inner wall of the fixed cavity 4, a pushing block 7 fixedly connected to one side of the elastic ring 6, a pad ring 8 rotatably connected to the outside of the pushing block 7 and located inside the fixed cavity 4, a plurality of evenly arranged elastic rings 15 fixedly installed inside the elastic ring 6, a wear-resistant pad 16 padding the other side of the pad ring 8, and a plurality of evenly arranged arc-shaped grooves 17 opened on one side of the wear-resistant pad 16.

[0021] Among them, the elastic ring 6 can squeeze and push the push block 7, and the elastic ring 15 can support the elastic ring 6, increasing the compressive strength of the elastic ring 6. The push block 7 pushes the rear end of the rotor 2 through the pad ring 8. The pad ring 8 on one side of the push block 7 can rotate under the drive of the rotor 2. When the rotor 2 deviates or shakes, it is easy to contact the wear-resistant pad 16. The wear-resistant pad 16 can increase the wear resistance of the pad ring 8 and prevent the pad ring 8 from being squeezed, rubbed or damaged when the rotor 2 rotates.

[0022] More specifically, the fastener includes a locking strip 9 that slides inside the fixing groove 5, a pull plate 10 fixedly connected to the top of the locking strip 9, a spring 11 fixedly connected between the inside of the fixing groove 5 and the locking strip 9, four circumferentially arranged locking grooves 12 on the outer edge of the back cover 3, four bolt rods 13 screwed onto the other end of the body 1 and located on one side of the fixing groove 5, a groove 14 for fixing the space of the bolt rods 13 is opened on the other side of the pull plate 10, and a take-out groove 18 is opened on the other side of the back cover 3, with four circumferentially arranged notches 19 around the take-out groove 18.

[0023] Furthermore, the end section of the locking strip 9 is a right-angled trapezoid, and the inclined surface fits against the edge of the back cover 3. When the back cover 3 is embedded inside the body 1, the locking strip 9 is pushed upward by the inclined surface. Then the locking strip 9 presses against the spring 11, which causes the locking strip 9 to move upward. Then the cover 3 enters the body 1. When the locking block coincides with the locking groove 12, the thrust disappears, that is, the spring 11 pushes the locking strip 9 into the locking groove 12 to lock and fix the back cover 3. Then, the bolt rod 13 is screwed to the body 1 and rotated into the groove 14 to lock and fix the pull plate 10, preventing the pull plate 10 from shifting or shaking, and improving the convenience and stability of installing the back cover 3.

[0024] The removal groove 18 is annular, and the four notches 19 in the inner circle of the removal groove 18 make it easy for operators to use tweezers or similar tools to clamp and remove the back cover 3, avoiding excessive fitting between the back cover 3 and the body 1, which would make removal inconvenient.

[0025] Working principle: First, the rotor 2 is placed inside the body 1. Then, the rear cover 3 is fitted and fixed to the body 1. When the rear cover 3 is embedded inside the body 1, it is pushed upward by the inclined surface of the locking strip 9. Then, the locking strip 9 presses against the spring 11, which can make the locking strip 9 move upward. Then, the cover 3 enters the body 1. When the locking block coincides with the locking groove 12, the thrust disappears. That is, the spring 11 pushes the locking strip 9 into the locking groove 12 to lock and fix the rear cover 3. Then, the bolt rod 13 is screwed to the body 1 and rotated to insert into the groove 14 to lock and fix the pull plate 10. Then, when the rotor 2 deviates and squeezes the wear-resistant pad 16, the rotor 2 drives the pad ring 8 to rotate on one side of the push block 7 through the wear-resistant pad 16. At this time, the elastic ring 6 squeezes and pushes the push block 7, while the elastic ring 15 supports the elastic ring 6 to prevent the rotor 2 from rotating too fast and damaging the rear cover 3.

[0026] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An assembled encapsulated motor, comprising a body (1) of the encapsulated motor, characterized in that: The rotor (2) is rotatably mounted on the inner side of the main body (1). A rear cover (3) is embedded on the rear side of the main body (1). A fixing cavity (4) is opened on the inner side of the rear cover (3). A pusher is installed on the inner side of the fixing cavity (4) to cooperate with the rotation of the rotor (2). Four circumferentially arranged fixing grooves (5) are opened on the inner side wall of the main body (1) near the rear cover (3). A buckle is installed on the inner side of the fixing grooves (5) for installing the rear cover (3).

2. The assembled encapsulated motor according to claim 1, characterized in that: The actuating component includes an elastic ring (6) fixedly connected to the inner wall of the fixed cavity (4), a push block (7) fixedly connected to one side of the elastic ring (6), and a pad ring (8) rotatably connected to the outside of the push block (7) and located inside the fixed cavity (4).

3. The assembled encapsulated motor according to claim 2, characterized in that: The fastener includes a locking strip (9) that is slidably connected to the inside of the fixing groove (5). A pull plate (10) is fixedly connected to the top of the locking strip (9). A spring (11) is fixedly connected between the inside of the fixing groove (5) and the locking strip (9). Four locking grooves (12) arranged in a circle are opened on the outer edge of the back cover (3).

4. The assembled encapsulated motor according to claim 3, characterized in that: Four bolt rods (13) are screwed onto the other end of the main body (1) and located on one side of the fixing groove (5). A groove (14) for fixing the fixing space of the bolt rods (13) is provided on the other side of the pull plate (10).

5. The assembled encapsulated motor according to claim 3, characterized in that: Multiple elastic rings (15) are fixedly installed on the inner side of the elastic ring (6) in a uniform arrangement.

6. The assembled encapsulated motor according to claim 5, characterized in that: The other side of the pad ring (8) is provided with a wear-resistant pad (16), and a plurality of evenly arranged arc-shaped grooves (17) are provided on one side of the wear-resistant pad (16).

7. The assembled encapsulated motor according to claim 2, characterized in that: The back cover (3) has an extraction slot (18) on the other side, and four notches (19) arranged in a circle are provided around the extraction slot (18).

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